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Join our Family in Zylia - Arcade's new Greek Cypriot Taverna!.Zylia is a small, soulful, 50-cover restaurant that brings the spirit of a real Cypriot village taverna into the heart of London.Inspired by the aromas of charcoal cooking, the warmth of Mediterranean hospitality, and the generosity of a

Join our Family in Zylia - Arcade's new Greek Cypriot Taverna!.Zylia is a small, soulful, 50 cover restaurant that brings the spirit of a real Cypriot village taverna into the heart of London.Inspired by the aromas of charcoal cooking, the warmth of Mediterranean hospitality, and the generosity of a

Waiter/ Waitress - 40 Greek Street, Central London.

Head Bartender - 40 Greek Street, Central London.

Valarian Technologies is a dual-use technology company building critical tools to safeguard the future in an era of evolving global security challenges. We're rethinking security beyond traditional military domains, addressing asymmetric threats that impact our technological advantage, economic strength, and democratic institutions. We build Acra – the platform foundation for everything we do as a dual-use technology company. The platform's name, rooted in the Greek word for citadel (or, fortress), reflects the design and purpose of our infrastructure-agnostic secure enclaves: protecting critical data. Some of the government and commercial workflows include: increased operational resiliency for mission-critical systems and functions; enabling organisations to more quickly and widely adopt emerging technologies while ensuring the integrity of their intellectual property; information flow during disaster response scenarios, and zero-trust / least-privilege environments for M&A, attorney-client privileged communications, etc. And we've only scratched the surface. At our core, we're driven by a shared mission and a belief in making a tangible impact on our world. Whether you join our London HQ or the wider global organisation, you’ll be a part of collaborative, high-performing teams, creating cutting-edge software, platforms, and infrastructure. You will design, build, and operate backend and platform services for ACRA, a complex security-focused Kubernetes platform that needs to be reliable, observable, scalable, and secure from the start. You will work primarily in Go, building microservices, APIs, internal platform services, and event-driven systems. You will own services end to end: from system design and implementation through to containerisation, deployment, monitoring, debugging, and production operations. You will help shape the infrastructure and delivery foundations around the platform, including Docker, Kubernetes, CI/CD pipelines, GitOps workflows, container registries, secrets management, deployment automation, and Argo-based delivery flows. You will contribute to core platform primitives such as identity-aware service communication, lifecycle orchestration, policy-driven deployment, auditability, observability, and controlled application execution. ACRA’s architecture separates the control plane, platform enforcement layer, and isolated execution environments, so this role requires someone who can reason clearly about trust boundaries, failure domains, and operational responsibility. This is not a role for someone who only wants to take tickets. We are looking for someone who understands the product vision, challenges assumptions, proposes better designs, and helps translate ambiguous requirements into robust technical systems. As ACRA grows, this role offers a clear path to increasing technical ownership and influence. You will not just build services and move on; you will help maintain, evolve, and scale the systems you own over time. You will also help raise the bar for how we design, review, deploy, operate, and learn as an engineering team. You do not need to have worked with every tool in our stack before. We are looking for strong engineering judgement, curiosity, ownership, and the ability to build reliable systems in complex environments. • Build and own backend services, APIs, microservices, and platform components in Go., • Own services from system design through implementation, deployment, observability, and production operations., • Design event-driven, scalable, observable, and resilient systems., • Build and improve Docker images, Kubernetes workloads, CI/CD pipelines, and Argo/GitOps workflows., • Work with container registries, secrets, secure configuration, and deployment automation., • Contribute to platform architecture, system design, security boundaries, and operational models., • Help build platform capabilities such as workload isolation, policy enforcement, auditability, and identity-aware communication., • Work closely with product, leadership, and engineering to turn ambiguous requirements into reliable technical solutions., • Make pragmatic technical trade-offs and explain them clearly., • Improve monitoring, logging, tracing, alerting, and production debugging., • Raise engineering standards through design reviews, code reviews, documentation, and operational improvements., • Operate independently in a startup environment with strong ownership and product thinking., • Senior backend engineering experience, ideally with hands‑on Go experience., • Experience owning production services, not just building features., • Experience building APIs, backend services, microservices, or distributed systems., • Strong experience with Docker, Kubernetes, and CI/CD., • Familiarity with GitOps, Argo, container registries, secrets, and secure deployment workflows., • Strong system design fundamentals, especially around reliability, scalability, observability, and failure handling., • Ability to reason about security boundaries, operational risk, and production failure modes., • Experience debugging issues across applications, services, and infrastructure., • Comfort working from ambiguous requirements and shaping the technical approach., • Product-minded engineering judgement: you care about why the platform is being built, not just what needs to be implemented., • A self‑driven, ownership-oriented way of working., • Comfortable giving and receiving feedback, reviewing designs, and helping improve team standards., • Willingness to work across backend, platform, infrastructure, and DevOps areas. The most important thing is not that you have done everything on this list before. It is that you bring strong engineering judgement, ownership, curiosity, and the determination to build excellent systems. • Secure or regulated environments, such as defence, government, fintech, healthcare, critical infrastructure, or sovereign cloud., • Zero‑trust architecture, identity‑aware systems, policy enforcement, or workload isolation., • Service mesh, network policy, ingress/egress control, or secure service-to-service communication., • Observability tooling, including metrics, logs, traces, alerting, and incident response., • Supply‑chain security concepts such as image signing, vulnerability scanning, SBOMs, artifact verification, or admission control., • Secrets management tools such as Vault, SOPS, Sealed Secrets, External Secrets, or cloud‑native secret managers., • Systems where auditability, traceability, and operational evidence are first‑class requirements., • Startup, platform, infrastructure, or product engineering environments with broad ownership. Again: these are not requirements. They are areas you may get to work with and go deeper into here. • Equity – because you have the right to own what you’re building, • A competitive salary – because we value your unique skills, • Employer pension contributions – because you deserve a secure future, • Private health insurance - because your health is important to us, • Hybrid work setup – because everyone has different needs, • Rewarding company retreats and meetups that respect your work/life balance – because we love getting to know each other! Our culture is built on inclusivity, compassion and flexibility – we want everyone to be empowered to achieve their goals at Valarian. The work we do is vital, but so are the connections that make it happen. We thrive on the shared energy, spontaneous conversations, and mutual trust built when we spend time together. We operate on a hybrid model, gathering in our London office 3 days a week to support one another and collaborate. We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses and identifying potential inconsistencies or verification signals in application materials based on available information. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us. #J-18808-Ljbffr

Valarian Technologies is a dual-use technology company building critical tools to safeguard the future in an era of evolving global security challenges. We're rethinking security beyond traditional military domains, addressing asymmetric threats that impact our technological advantage, economic strength, and democratic institutions. We build Acra – the platform foundation for everything we do as a dual-use technology company. The platform’s name, rooted in the Greek word for citadel (or, fortress), reflects the design and purpose of our infrastructure-agnostic secure enclaves: protecting critical data. Some of the government and commercial workflows include: increased operational resiliency for mission-critical systems and functions; enabling organisations to more quickly and widely adopt emerging technologies while ensuring the integrity of their intellectual property; information flow during disaster response scenarios, and zero-trust / least-privilege environments for M&A, attorney-client privileged communications, etc. And we’ve only scratched the surface. At our core, we're driven by a shared mission and a belief in making a tangible impact on our world. Whether you join our London HQ or the wider global organisation, you’ll be a part of collaborative, high-performing teams, creating cutting-edge software, platforms, and infrastructure. In this role, you will help build and operate the backend and platform services behind ACRA: our secure Kubernetes platform for controlled compute, data governance, and AI-driven security operations. You will work mainly in Go, building services across backend engineering, Kubernetes, platform infrastructure, and security. This includes systems designed for reliability, scale, and security from the start, including how AI can help define, enforce, and reason about security controls. You will join a focused engineering team that values ownership, direct feedback, and support. You will start with clear areas of work, then take on more autonomy over services and platform direction as you build context. This is a strong fit for someone who wants to become excellent across backend, platform, Kubernetes, and security, and help build a serious security platform from an early stage. Develop backend services, APIs, and platform components using Go. Own services from design and implementation through testing, deployment, and production monitoring. Work with Docker, Kubernetes, CI/CD, GitOps, and secrets management. Build platform features for workload isolation, policy enforcement, audit logging, and identity-aware communication. Design event-driven distributed systems for resilience and scalability. Improve metrics, logging, tracing, and incident response. Work with engineering and product teams to turn requirements into technical solutions. Own specific platform areas and contribute independently. Improve how the team reviews code, deploys changes, and learns from incidents. • Backend engineering experience, with some exposure to Go., • Experience building APIs, backend services, or microservices., • Experience working with Docker and containers., • Experience deploying to, developing on, or building with Kubernetes., • Understanding of CI/CD pipelines and deployment workflows., • Familiarity with GitOps, Argo, container registries, secrets, or deployment security., • Understanding of event-driven architecture, asynchronous workflows, or distributed systems., • System design knowledge around reliability, scalability, observability, and failure handling., • Ability to debug issues across applications, services, and infrastructure., • Interest in why the platform is being built, not just what needs to be implemented., • Ownership, curiosity, and ability to work independently., • Willingness to learn across backend, platform, infrastructure, and DevOps., • Security, regulated, or high-trust environments such as defence, government, fintech, healthcare, critical infrastructure, or sovereign cloud., • Kubernetes security areas such as zero trust, workload isolation, identity-aware systems, network policy, service mesh, or policy enforcement., • Platform security practices such as secrets management, supply-chain security, admission control, auditability, and operational evidence., • Observability and operations, including metrics, logs, traces, alerting, incident response, and debugging production systems., • Experience in startup, platform, infrastructure, or product engineering environments with broad ownership. You do not need to have worked with all of these. They are areas you may learn and build with us. • Equity – because you have the right to own what you’re building, • A competitive salary – because we value your unique skills, • Employer pension contributions – because you deserve a secure future, • Private health insurance - because your health is important to us, • Hybrid work setup – because everyone has different needs, • Rewarding company retreats and meetups that respect your work/life balance – because we love getting to know each other! Our culture is built on inclusivity, compassion and flexibility – we want everyone to be empowered to achieve their goals at Valarian. The work we do is vital, but so are the connections that make it happen. We thrive on the shared energy, spontaneous conversations, and mutual trust built when we spend time together. We operate on a hybrid model, gathering in our London office 3 days a week to support one another and collaborate. We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses and identifying potential inconsistencies or verification signals in application materials based on available information. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us. Valarian Technologies Limited is an equal opportunity employer and welcomes applications from individuals regardless of race, colour, religion, sex, sexual orientation, gender, identity or expression, national origin, age, disability, genetic information, marital status, veteran, amnesty, or any other legally protected characteristic. We are committed to ensuring a fair and inclusive recruitment process and providing employment opportunities to all applicants. Decision recruitment, hiring, and employment are based solely on qualifications, skills, and experience relevant to the job requirements. #J-18808-Ljbffr

Welcome! Super excited you dropped by Let's redefine cyber security expertise standards and connect business - community through highly engaging hacking experiences. (Find out more insights about Hack The Box culture in our career site). Our specialized Defensive Content team creates industry-leading Sherlocks, Forensic CTF challenges, and Cyber Ranges. As part of the broader 30+ member Content Engineering organization across the globe, you will collaborate closely across engineering, infrastructure, product, and marketing to deliver immersive, high-impact cybersecurity experiences. Please, have in mind that for this kind of position, we usually give some priority to individuals that have submitted content in the past or can showcase some related work(offensive or defensive content) they've engineered. If you have created content, make sure to share with us some details along with your application. • SIEM, EDR, Wireshark, Windows, Linux, VMware, Cloud Platforms, • Explore our insights on Threat Ranges to understand the core environments you will be building., • Learn how players tackle Sherlocks, one of our flagship defensive lab formats., • Meet our Content Engineering team, • Architect & Build: Design, build, and deploy highly engaging live-fire cyber ranges and threat hunting scenarios tailored for enterprise-grade training., • Collaborate & Lead: Partner with talented engineers across departments to drive technical excellence and push the boundaries of defensive training., • Innovate Content: Contribute to and review advanced Sherlocks, competitive CTF tracks, and large-scale Pro Labs scenarios., • Threat Research: Conduct deep research into novel vulnerabilities, modern exploit techniques, adversary TTPs, and real-world threat actors to keep content cutting-edge., • Tooling & Technical Mastery: Expert proficiency with defensive security tools (e.g., SIEM, EDR, Wireshark, Volatility, Autopsy, IDA) and core domains such as detection engineering, digital forensics, and malware analysis., • Content Engineering Experience: Proven track record of designing content for Cyber Ranges, Capture The Flag (CTF) events, or interactive learning platforms., • Systems & Infrastructure: Deep understanding of OS internals, enterprise applications, and system administration (Windows, Linux, VMware, Cloud platforms)., • Mindset: Self-motivated, structured, and genuinely passionate about cybersecurity education and gamified learning., • Communication: Full professional proficiency in written and spoken English., • 2+ years of hands-on experience in real-world Defensive Security Operations (SecOps / SOC / Incident Response)., • Practical expertise with Infrastructure-as-Code and orchestration tools (e.g., Terraform, Ansible)., • You’ll have the exhilarating opportunity to contribute to a product that is highly appreciated by users and the cybersecurity community at large, • You’ll experience a highly supportive and caring environment, fostering growth, flexibility, and autonomy, • You’ll embark on an exciting journey of continuous learning and problem-solving, leveling up as our organization grows, • Most importantly, you’ll have a blast at HTB because fun is an essential ingredient in our recipe for success! Just wait until you see our global meet-ups!, • We have also other benefits that will keep you happy:, • 25 annual leave days, • Paid parental leave, • Home Office Allowance, • Dedicated budget for training and professional development, participation in conferences, • State-of-the-art equipment, • Full access to the Hack The Box lab offerings; so you can learn how to hack, • Flexibility in working hours Our benefits package is designed to provide strong support to our team, but it may vary depending on location and type of employment (e.g., UK, Greece, or engagement through an Employer of Record). • Level 1: To complete level one’s objective, submit your application., • Level 2: Meet the Talent Acquisition team. Level’s objective: highlight your past achievements, ambitions, and values., • Level 3: Meet the hiring team. Level’s objective: connect with the hiring team and share with them your achievements., • Level 4: Complete an assignment that align with day-to-day job-related tasks and responsibilities. Part of the assignment is discussing it with the hiring team in a debriefing session, in order to walk the team through your thinking process., • Level 5: Congratulations! Not many reach this level. Level’s objective: have a constructive, final conversation with senior leadership to explore the role and your future at HTB., • Level 6: You've officially received an offer from HTB! To complete the last level and the Quest, all you need to do is accept the offer., • Quest complete. Congratulations, you’re officially one of us Your next quest: complete the onboarding. Hack Your Career, Today. Join us in this epic adventure of cybersecurity at Hack The Box! At Hack The Box, we are on a quest to find the most exceptional and enthusiastic talent to join our team. Whether or not you consider yourself a gamer, we value what makes you unique and want to know more about you. This job post provides just a glimpse of the incredible gamified experience our business and consumer customers enjoy through our platforms. So, if you're ready to embark on a journey of growth and adventure, we can't wait to meet you! ABOUT HTB: Hack The Box is the leading cyber readiness platform for the agentic era, battle-testing and upskilling both humans and AI agents to enhance organizational cyber resilience. Trusted by the Fortune 500, government agencies, and MSSPs, the platform delivers threat-informed learning paths consisting of real-world scenarios in gamified labs and live-fire simulations that build and validate offensive and defensive cyber capabilities. With a loyal community of more than 4 million members and 800+ enterprise customers, Hack The Box empowers teams and intelligent systems alike to strengthen cyber defenses and reduce breach risk effectively. Rapidly growing its international footprint and reach, Hack The Box is headquartered in the UK, with additional offices in the US, Australia, and Greece. News & Resources: • We’re incredibly proud to share that our headquarters in the UK, along with our entities in Greece and the US, have been certified as a Great Place to Work for 4 consecutive years (2023 - 2026)., • In addition, our Greek entity has been recognized among the Best Workplaces in Greece (4th, 2nd, 3rd, 1st) and Europe (7th, 10th, 73rd) during this period — a testament to our strong culture and commitment to creating an exceptional employee experience! Take a sneak peek at how it is to be part of HTB. Get more insights about our HTB culture and employee experience by visiting the “about us” section of our site, our career site, and Glassdoor. At Hack The Box, we are committed to fostering a diverse, inclusive, and equitable workplace. We believe that diversity enriches our performance, services, and the communities we serve. As such, we ensure that all job applications are considered solely based on merit, skills, and qualifications. We do not discriminate on grounds of race, color, religion, gender, gender identity or expression, sexual orientation, national origin, genetics, disability, age, or veteran status. We are dedicated to providing a fair and respectful work environment that reflects our values. #J-18808-Ljbffr

Valarian Technologies is a dual-use technology company building critical tools to safeguard the future in an era of evolving global security challenges. We're rethinking security beyond traditional military domains, addressing asymmetric threats that impact our technological advantage, economic strength, and democratic institutions. We build Acra – the platform foundation for everything we do as a dual-use technology company. The platform’s name, rooted in the Greek word for citadel (or, fortress), reflects the design and purpose of our infrastructure-agnostic secure enclaves: protecting critical data. Some of the government and commercial workflows include: increased operational resiliency for mission‑critical systems and functions; enabling organizations to more quickly and widely adopt emerging technologies while ensuring the integrity of their intellectual property; information flow during disaster response scenarios, and zero‑trust / least‑privilege environments for M&A, attorney‑client privileged communications, etc. And we’ve only scratched the surface. At our core, we're driven by a shared mission and a belief in making a tangible impact on our world. Whether you join our London HQ or the wider global organisation, you’ll be a part of collaborative, high‑performing teams, creating cutting‑edge software, platforms, and infrastructure. As Head of Information Security at Valarian, you will define and lead our security strategy with a strong focus on protecting our digital ecosystem, spanning cloud infrastructure, SaaS platforms, and internal tooling. You’ll be responsible for securing how our organisation operates day‑to‑day: from identity and access across SaaS tools, to cloud architecture, to data protection across systems. This is a hands‑on leadership role combining strategy, architecture, and execution. You’ll work closely with Engineering, Product, Legal, and Leadership to embed security into everything we build, while evolving our compliance posture across ISO‑27001 and SOC‑2 (including expansion into additional controls). • Own and execute Valarian’s end‑to‑end information security strategy, • Lead and mature our security posture across compliance frameworks, including ISO‑27001, SOC 2, and expansion into additional control frameworks, • Design and implement scalable security architecture across cloud, infrastructure, and applications, • Partner with Engineering to embed secure‑by‑design principles into development workflows, • Build, manage, and continuously improve security policies, standards, and controls, • Lead risk management, threat modeling, and vulnerability management processes, • Oversee incident detection, response, and recovery planning, • Drive security awareness and training across the company, • Establish and manage identity and access management (IAM), SSO, and device security across the organisation, • Manage audits, certifications, and relationships with external assessors, • Establish metrics and reporting to provide visibility into security posture and risk, • Hire, develop, and lead a high‑performing security team as the company grows, • Proven experience leading information security in a cloud‑first, SaaS‑heavy environment, • Deep expertise in securing cloud infrastructure and modern workplace tooling, • Strong hands‑on experience with identity and access management, SSO, and zero‑trust approaches, • Experience managing and securing a broad ecosystem, including vendor risk and access governance, • Practical experience with SOC 2 and ISO‑27001, • Strong understanding of cloud security principles (networking, IAM, secrets management, logging, monitoring), • Experience implementing security tooling such as SIEM, EDR, and CSPM security platforms, • Track record of building scalable, pragmatic security programs in high‑growth environments, • Ability to balance strong security practices with usability and business velocity, • Excellent stakeholder management and communication skills across teams, • Experience building or scaling security teams (or readiness to do so), • A focus on real‑world risk reduction over checkbox compliance Our benefits are designed to ensure our employees feel taken care of and are proud to be a part of the Valarian team. We are committed to consistently enhancing our benefit package, taking into account the overall well‑being and needs of our teammates. Here are the key benefits accessible to all employees at Valarian Technologies: • Equity – because you have the right to own what you’re building, • A competitive salary – because we value your unique skills, • Employer pension contributions – because you deserve a secure future, • Hybrid work setup – because everyone has different needs, • Rewarding company retreats and meetups that respect your work/life balance – because we love getting to know each other! Our culture is built on inclusivity, compassion and flexibility – we want everyone to be empowered to achieve their goals at Valarian. The world is changing, and so is our way of working. If you want to join us in the London office – it’s quite nice! – you’re welcome to; and if you’d prefer to work remotely, that’s fine too. And as we build elegant solutions to simplify the complexities of business collaboration, we also simplify work life: contribute wherever and whenever allows you to be your best self. We trust each other to consistently raise the bar, and we challenge each other to continually reach new heights. Valarian Technologies Limited is an equal opportunity employer and welcomes applications from individuals regardless of race, colour, religion, sex, sexual orientation, gender, identity or expression, national origin, age, disability, genetic information, marital status, veteran, amnesty, or any other legally protected characteristic. We are committed to ensuring a fair and inclusive recruitment process and providing employment opportunities to all applicants. Decision recruitment, hiring, and employment are based solely on qualifications, skills, and experience relevant to the job requirements. #J-18808-Ljbffr

Valarian Technologies is a dual-use technology company building critical tools to safeguard the future in an era of evolving global security challenges. We're rethinking security beyond traditional military domains, addressing asymmetric threats that impact our technological advantage, economic strength, and democratic institutions. We build Acra – the platform foundation for everything we do as a dual-use technology company. The platform’s name, rooted in the Greek word for citadel (or, fortress), reflects the design and purpose of our infrastructure-agnostic secure enclaves: protecting critical data. Some of the government and commercial workflows include: increased operational resiliency for mission-critical systems and functions; enabling organizations to more quickly and widely adopt emerging technologies while ensuring the integrity of their intellectual property; information flow during disaster response scenarios, and zero-trust / least-privilege environments for M&A, attorney-client privileged communications, etc. And we’ve only scratched the surface. At our core, we're driven by a shared mission and a belief in making a tangible impact on our world. Whether you join our London HQ or the wider global organisation, you’ll be a part of collaborative, high-performing teams, creating cutting-edge software, platforms, and infrastructure. Join us as a DevSecOps and help us build the future of data sovereignty! We're seeking an DevSecOps passionate about creating high-performance, secure, scalable, and reliable services for our production infrastructure and security. You'll have a direct impact, improving existing systems and developing innovative solutions to complex challenges. Our small, collaborative engineering teams own the full lifecycle of their services, from development to production operations. We champion automation and empower you to choose the best tools for the job. If you thrive in a fast-paced environment where you can make a real difference, we want to hear from you! • Develop and implement a comprehensive observability strategy for self-hosted deployments, including infrastructure and tooling for monitoring, alerting, and troubleshooting. This will involve designing and implementing robust metrics and logging systems. • Engineer the Acra platform for high availability and fault tolerance. This includes ensuring resilience against Cloud Availability Zone outages and the ability to gracefully handle node failures., • Guarantee 99.9% uptime for the platform's control plane and deployment management. Design and implement a disaster recovery plan with active/passive deployments and seamless failover capabilities., • Architect and implement a highly available deployment setup for applications within the Acra platform. This will involve designing and building the infrastructure and processes necessary for continuous operation., • Create and maintain robust backup and recovery strategies for all Valarian products, ensuring data integrity and minimal downtime in the event of a failure., • Integrate and manage an incident detection and paging solution to ensure rapid response to critical issues and minimize service disruptions., • Scale the Acra platform and applications to support large concurrent user bases (25+ users) and sustained daily usage. This will involve performance tuning, capacity planning, and optimization of resource utilization., • Collaborate closely with the product engineering team to influence the design and implementation of new products and features, ensuring they meet our reliability and scalability standards from the outset., • Bachelor’s degree (or foreign equivalent) in Computer Science or a related fieldis desired; relevant practical experience will also be considered., • Proficiency with programming languages like Go, Bash, Python., • Deep experience with Kubernetes security: RBAC, PodSecurityPolicies (or their replacements), Admission Controllers and Kubernetes network policies., • Proficiency in secure networking practices, including TLS, mutual TLS (mTLS), ingress/egress controls and VPN tunneling configurations., • Proven experience operating and securing service mesh technologies (e.g. Istio, Linkerd, or Consul Connect)., • Hands on experience with HashiCorp Vault in production, including dynamic secrets engines, auth backends and policy design., • Practical knowledge of HAProxy or equivalent reverse proxies/load balancers, with experience configuring L4/L7 security protections., • Familiarity with CVE triage workflows and integrating vulnerability scanners into CI/CD and registry workflows., • Exposure to runtime security tooling (e.g. Falco, eBPF-based monitoring) and familiarity with basic incident response workflows., • Comfort representing engineering in external calls with auditors, pentesters and security vendors; able to explain infrastructure decisions in security terms., • Familiarity with compliance standards (SOC 2, ISO 27001, etc) and cloud security postures in AWS, Azure or GCP would be preferable but not essential., • Competitive salary and equity grants, • Employer pension contributions;, • UK roles include enhanced employer pension contributions, • US roles include 401(k) retirement savings plan – traditional and Roth, • Platinum healthcare benefit;, • For US roles, we offer comprehensive medical, dental and vision plans at little to no cost to you, • For UK roles, Valarian will cover the full cost of the Private Medical Insurance (PMI) premium for an employee and dependents, • Basic Life / AD&D and long-term disability insurance 100% covered by Valarian, • Hybrid work arrangements are managed at team level, • Generous holiday calendar and PTO, • Relocation assistance (depending on role eligibility) Valarian Technologies Limited is an equal opportunity employer and welcomes applications from invdividuals regardless of race, colour, religion, sex, sexual orientation, gender, identity or expression, national origin, age, disability, genetic information, marital status, veteran, amnesty, or any other legally protected characteristic. We are committed to ensuring a fair and inclusive recruitment process and providing employment opportunities to all applicants. Decision recruitment, hiring, and employment are based solely on qualifications, skills, and experience relevant to the job requirements. #J-18808-Ljbffr

Valarian Technologies is a dual-use technology company building critical tools to safeguard the future in an era of evolving global security challenges. We're rethinking security beyond traditional military domains, addressing asymmetric threats that impact our technological advantage, economic strength, and democratic institutions. We build Acra – the platform foundation for everything we do as a dual-use technology company. The platform’s name, rooted in the Greek word for citadel (or, fortress), reflects the design and purpose of our infrastructure-agnostic secure enclaves: protecting critical data. Some of the government and commercial workflows include: increased operational resiliency for mission-critical systems and functions; enabling organisations to more quickly and widely adopt emerging technologies while ensuring the integrity of their intellectual property; information flow during disaster response scenarios, and zero-trust / least-privilege environments for M&A, attorney-client privileged communications, etc. And we’ve only scratched the surface. At our core, we're driven by a shared mission and a belief in making a tangible impact on our world. Whether you join our London HQ or the wider global organisation, you’ll be a part of collaborative, high-performing teams, creating cutting-edge software, platforms, and infrastructure. We are looking for a Senior Infrastructure Engineer to own and evolve the foundational infrastructure layer behind ACRA. This is a deep infrastructure role. You will work across Kubernetes, Linux, networking, storage, service-to-service communication, observability, security boundaries, and production operations. You will be responsible for the systems that everything else depends on: clusters, networks, storage layers, ingress and egress paths, runtime infrastructure, deployment foundations, and operational reliability. Infrastructure is part of the product at Valarian. ACRA only works if the underlying infrastructure is secure, observable, debuggable, resilient, and able to run across cloud, on-premise, bare-metal, sovereign, air-gapped, and customer-managed environments. We are looking for someone with strong judgement and real production experience. This role values depth, operational correctness, and careful decision-making. You should be comfortable going deep into complex operational problems, understanding failure modes, debugging under pressure, and improving the reliability of the whole platform. You should be comfortable operating close to the metal: debugging Kubernetes, understanding networking behaviour, reasoning about distributed storage, improving observability, and helping define the infrastructure patterns that ACRA will rely on as it scales. This is not a generic DevOps support role, cloud administration role, or internal IT role. You will be a critical engineer in the team responsible for the infrastructure foundations of a high-trust platform. Design, build, operate, and improve Kubernetes-based infrastructure for ACRA. Own core infrastructure plumbing across networking, storage, workload scheduling, service communication, ingress, egress, DNS, certificates, and cluster-level security. Operate and debug production Kubernetes environments across GCP, on-premise, bare‑metal, sovereign cloud, air‑gapped, and customer‑managed deployments. Work on multi‑cluster Kubernetes environments, cluster networking, network policy, service mesh, and secure service‑to‑service communication. Operate and evolve distributed storage systems, including storage classes, CSI drivers, capacity planning, replication, recovery, and failure handling. Work with infrastructure technologies such as Kubernetes, Linux, Cilium, eBPF, Istio, Rook Ceph, Terraform, Argo CD, GitOps, Helm, and related CNCF tooling. Build infrastructure automation that improves repeatability, reliability, and operational safety. Improve observability across infrastructure layers, including metrics, logs, traces, alerting, dashboards, and operational runbooks. Investigate and resolve complex production issues across networking, storage, Kubernetes, Linux, and application infrastructure. Contribute to incident response, root‑cause analysis, capacity planning, disaster recovery, and production readiness. Define infrastructure standards, operational boundaries, security controls, and deployment patterns across the platform. Work closely with engineering teams to make services easier to deploy, operate, monitor, and debug. Contribute to the long‑term technical direction of the DevOps department and the infrastructure foundations of ACRA. Strong experience in infrastructure engineering, platform engineering, DevOps, SRE, or production systems engineering. Deep hands‑on experience operating Kubernetes in production. Strong understanding of Linux systems, containers, networking, storage, and distributed infrastructure. Strong networking fundamentals, including TCP/IP, DNS, TLS, routing, load balancing, ingress, egress, network policy, and service discovery. Experience debugging difficult infrastructure issues across clusters, nodes, pods, networks, storage, and workloads. Experience with Kubernetes networking, CNI, service mesh, network policy, or secure service‑to‑service communication. Experience or strong working knowledge in at least one deep infrastructure area such as Kubernetes networking, distributed storage, Linux systems, bare‑metal infrastructure, multi‑cluster operations, or production incident response. Experience with infrastructure as code and GitOps workflows, especially Terraform, Argo CD, Helm, Kustomize, or similar tooling. Experience building reliable infrastructure for production environments where uptime, security, and operational clarity matter. Comfortable working across cloud, on‑premise, bare‑metal, restricted, or customer‑managed environments. Strong operational judgement, especially around reliability, resilience, failure domains, and production risk. Strong ownership mindset. You can take responsibility for critical systems and improve them over time. Clear communication skills. You can explain complex infrastructure problems to engineering and leadership without adding noise. Comfortable working in a startup environment with ambiguity, changing priorities, and broad technical responsibility. Experience with distributed storage systems, especially Rook Ceph or Ceph. Experience with Cilium, eBPF, cluster mesh, Istio, Envoy, or similar networking and service mesh technologies. Experience with multi‑cluster Kubernetes environments. Experience operating Kubernetes or OpenShift outside simple managed‑cloud environments, including bare‑metal, VMware, sovereign, air‑gapped, regulated, or customer‑managed deployments. Experience operating infrastructure in secure, regulated, sovereign, air‑gapped, defence, government, fintech, healthcare, critical infrastructure, or customer‑managed environments. Experience with zero‑trust architecture, workload isolation, identity‑aware networking, policy enforcement, or runtime security. Experience with secrets management tools such as Vault, OpenBao, SOPS, Sealed Secrets, External Secrets, or cloud‑native secret managers. Experience with observability stacks such as Prometheus, Grafana, Loki, OpenTelemetry, Jaeger, ELK, Dynatrace, or similar tooling. Experience with supply‑chain security, including image signing, vulnerability scanning, SBOMs, artefact verification, admission control, or policy‑as‑code. Experience designing infrastructure where auditability, traceability, recoverability, and operational evidence are first‑class requirements. Equity – because you have the right to own what you’re building A competitive salary – because we value your unique skills Employer pension contributions – because you deserve a secure future • Private health insurance - because your health is important to us Hybrid work setup – because everyone has different needs Rewarding company retreats and meetups that respect your work/life balance – because we love getting to know each other! Our culture is built on inclusivity, compassion and flexibility – we want everyone to be empowered to achieve their goals at Valarian. The work we do is vital, but so are the connections that make it happen. We thrive on the shared energy, spontaneous conversations, and mutual trust built when we spend time together. We operate on a hybrid model, gathering in our London office 3 days a week to support one another and collaborate. We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses and identifying potential inconsistencies or verification signals in application materials based on available information. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us. Valarian Technologies Limited is an equal opportunity employer and welcomes applications from individuals regardless of race, colour, religion, sex, sexual orientation, gender, identity or expression, national origin, age, disability, genetic information, marital status, veteran, amnesty, or any other legally protected characteristic. We are committed to ensuring a fair and inclusive recruitment process and providing employment opportunities to all applicants. Decision recruitment, hiring, and employment are based solely on qualifications, skills, and experience relevant to the job requirements. #J-18808-Ljbffr

Valarian Technologies is a dual-use technology company building critical tools to safeguard the future in an era of evolving global security challenges. We're rethinking security beyond traditional military domains, addressing asymmetric threats that impact our technological advantage, economic strength, and democratic institutions. We build ACRA – the platform foundation for everything we do as a dual-use technology company. The platform’s name, rooted in the Greek word for citadel (or, fortress), reflects the design and purpose of our infrastructure-agnostic secure enclaves: protecting critical data. Some of the government and commercial workflows include: increased operational resiliency for mission-critical systems and functions; enabling organizations to more quickly and widely adopt emerging technologies while ensuring the integrity of their intellectual property; information flow during disaster response scenarios, and zero-trust / least-privilege environments for M&A, attorney-client privileged communications, etc. And we’ve only scratched the surface. At our core, we're driven by a shared mission and a belief in making a tangible impact on our world. Whether you join our London HQ or the wider global organisation, you’ll be a part of collaborative, high-performing teams, creating cutting-edge software, platforms, and infrastructure. Join us as a DevSecOps and help us build the future of data sovereignty! We're seeking an DevSecOps passionate about creating high-performance, secure, scalable, and reliable services for our production infrastructure and security. You'll have a direct impact, improving existing systems and developing innovative solutions to complex challenges. Our small, collaborative engineering teams own the full lifecycle of their services, from development to production operations. We champion automation and empower you to choose the best tools for the job. If you thrive in a fast-paced environment where you can make a real difference, we want to hear from you! • Develop and implement a comprehensive observability strategy for self-hosted deployments, including infrastructure and tooling for monitoring, alerting, and troubleshooting. This will involve designing and implementing robust metrics and logging systems., • Engineer the Acra platform for high availability and fault tolerance. This includes ensuring resilience against Cloud Availability Zone outages and the ability to gracefully handle node failures., • Guarantee 99.9% uptime for the platform's control plane and deployment management. Design and implement a disaster recovery plan with active/passive deployments and seamless failover capabilities., • Architect and implement a highly available deployment setup for applications within the Acra platform. This will involve designing and building the infrastructure and processes necessary for continuous operation., • Create and maintain robust backup and recovery strategies for all Valarian products, ensuring data integrity and minimal downtime in the event of a failure., • Integrate and manage an incident detection and paging solution to ensure rapid response to critical issues and minimize service disruptions., • Scale the Acra platform and applications to support large concurrent user bases (25+ users) and sustained daily usage. This will involve performance tuning, capacity planning, and optimization of resource utilization., • Collaborate closely with the product engineering team to influence the design and implementation of new products and features, ensuring they meet our reliability and scalability standards from the outset., • Education: Bachelor’s degree (or foreign equivalent) in Computer Science or a related field; relevant practical experience will also be considered., • Languages: Proficiency with programming languages like Go, Bash, Python., • K8s Security: Deep experience with Kubernetes security: RBAC, PodSecurityPolicies (or their replacements), Admission Controllers, and Kubernetes network policies., • Networking: Proficiency in secure networking practices, including TLS, mutual TLS (mTLS), ingress/egress controls, and VPN tunneling configurations., • Service Mesh: Proven experience operating and securing service mesh technologies (e.g., Istio, Linkerd, or Consul Connect)., • Vault: Hands-on experience with HashiCorp Vault in production, including dynamic secrets engines, auth backends, and policy design., • Load Balancing: Practical knowledge of HAProxy or equivalent reverse proxies/load balancers, with experience configuring L4/L7 security protections., • Vulnerability Mgmt: Familiarity with CVE triage workflows and integrating vulnerability scanners into CI/CD and registry workflows., • Runtime Security: Exposure to runtime security tooling (e.g., Falco, eBPF-based monitoring) and familiarity with basic incident response workflows., • Communication: Comfort representing engineering in external calls with auditors, pentesters, and security vendors; able to explain infrastructure decisions in security terms., • Compliance: Familiarity with compliance standards (SOC 2, ISO 27001, etc.) and cloud security postures in AWS, Azure, or GCP., • Competitive salary and equity grants, • Employer pension contributions;, • UK roles include enhanced employer pension contributions, • US roles include 401(k) retirement savings plan – traditional and Roth, • For US roles, we offer comprehensive medical, dental and vision plans at little to no cost to you, • For UK roles, Valarian will cover the full cost of the Private Medical Insurance (PMI) premium, • Basic Life / AD&D and long-term disability insurance 100% covered by Valarian, • Hybrid work arrangements are managed at team level, • Generous holiday calendar and PTO, • Relocation assistance (depending on role eligibility) Valarian Technologies Limited is an equal opportunity employer and welcomes applications from invdividuals regardless of race, colour, religion, sex, sexual orientation, gender, identity or expression, national origin, age, disability, genetic information, marital status, veteran, amnesty, or any other legally protected characteristic.We are committed to ensuring a fair and inclusive recruitment process and providing employment opportunities to all applicants. Decision recruitment, hiring, and employment are based solely on qualifications, skills, and experience relevant to the job requirements. #J-18808-Ljbffr

Valarian Technologies is a dual-use technology company building critical tools to safeguard the future in an era of evolving global security challenges. We build Acra – the platform foundation for everything we do as a dual-use technology company. The platform’s name, rooted in the Greek word for citadel (or, fortress), reflects the design and purpose of our infrastructure-agnostic secure enclaves: protecting critical data. Some of the government and commercial workflows include: increased operational resiliency for mission‑critical systems and functions; enabling organisations to more quickly and widely adopt emerging technologies while ensuring the integrity of their intellectual property; information flow during disaster response scenarios, and zero‑trust / least‑privilege environments for M&A, attorney‑client privileged communications, etc. And we’ve only scratched the surface. At our core, we're driven by a shared mission and a belief in making a tangible impact on our world. Whether you join our London HQ or the wider global organisation, you'll be a part of collaborative, high‑performing teams, creating cutting‑edge software, platforms, and infrastructure. Valarian Technologies is a dual-use technology company building critical tools to safeguard the future in an era of evolving global security challenges. We're rethinking security beyond traditional military domains, addressing asymmetric threats that impact our technological advantage, economic strength, and democratic institutions. We build Acra – the platform foundation for everything we do as a dual-use technology company. The platform’s name, rooted in the Greek word for citadel (or, fortress), reflects the design and purpose of our infrastructure‑agnostic secure enclaves: protecting critical data. Some of the government and commercial workflows include: increased operational resiliency for mission‑critical systems and functions; enabling organisations to more quickly and widely adopt emerging technologies while ensuring the integrity of their intellectual property; information flow during disaster response scenarios, and zero‑trust / least‑privilege environments for M&A, attorney‑client privileged communications, etc. And we’ve only scratched the surface. At our core, we're driven by a shared mission and a belief in making a tangible impact on our world. Whether you join our London HQ or the wider global organisation, you'll be a part of collaborative, high‑performing teams, creating cutting‑edge software, platforms, and infrastructure. As an AI Harness Engineer at Valarian, you will own the experimental design, evaluation methodologies, and benchmark infrastructure for our AI models and autonomous agentic workloads. In an emerging domain with no standard playbook, you will serve as the bridge between rigorous data science, statistical validation, and production agent scaffolding. You will design robust evaluation datasets, architect calibrated LLM‑as‑a‑judge pipelines, and build metrics that accurately capture multi‑step agent performance under non‑deterministic conditions. Your insights and error analyses will directly drive iterative improvements to our harness scaffolding, tool orchestration, and system safety guardrails. • Architect Evaluation Runtimes & Harnesses: Design and maintain scalable Python evaluation harnesses that measure task completion, trajectory quality, tool‑use correctness, cost, latency, and variance across multi‑step agentic systems., • Design Experiments & Validate Results: Apply rigorous statistical methods—including hypothesis testing, confidence intervals, bootstrapping, and power analysis—to determine whether performance changes are true system improvements or stochastic noise., • Build & Calibrate LLM‑as‑a‑Judge Pipelines: Develop automated judging systems validated against human ground truth. Measure alignment using agreement metrics (Cohen's kappa, correlation, precision/recall) and systematically detect judge failure modes such as position bias, verbosity bias, self‑preference, and prompt sensitivity., • Curate Benchmark Datasets & Rubrics: Define sampling strategies, detailed annotation guidelines, and scoring rubrics. Measure inter‑annotator agreement and manage label noise to ensure benchmark integrity over time., • Deep Error & Trajectory Analysis: Conduct hands‑on failure analysis on agent runs, cluster root causes into actionable error categories, and clearly communicate findings to both engineering teams and stakeholders., • Drive Harness Scaffolding Iteration: Translate evaluation results directly into architectural improvements across agent scaffolding, prompt design, tool execution loops, context window compaction, retries, and safety guardrails., • Grounding in Statistics & Experimental Design: Demonstrated expertise in hypothesis testing, bootstrapping, power analysis, and statistical significance within probabilistic machine learning systems., • LLM‑as‑a‑Judge Validation: Proven experience building, auditing, and validating LLM judge setups against human annotations, including tracking agreement metrics and mitigating judge biases., • Evaluation Dataset Engineering: Strong track record designing evaluation datasets, crafting precise scoring rubrics, managing label noise, and measuring inter‑annotator agreement., • Evaluation of Non‑Deterministic Multi‑Step Systems: Deep comfort evaluating complex agent trajectories, tool execution sequences, latency, cost, and variance across repeated runs rather than relying solely on single‑shot benchmarks., • Metric Design & Integrity: Exceptional judgment in defining metrics tied to real‑world outcomes, with a keen eye for detecting benchmark gaming, target drift, or shortcut learning., • Rigor in Error Analysis: Ability to dissect complex execution logs, categorize failure modes, and synthesize clear, data‑driven recommendations., • Hands‑On LLM Integration: Practical proficiency with LLM APIs, prompt engineering, structured outputs, function/tool calling, and retrieval systems in Python., • Agent Architecture Awareness: Clear understanding of planning loops, tool orchestration, memory management, and multi‑agent coordination, including their trade‑offs and common failure modes., • Harness & Scaffolding Contribution: Ability to write clean, maintainable Python code to iterate on harness components such as guardrails, retry logic, state handling, and context management., • Experience with agent and evaluation frameworks (e.g., LangChain, LangGraph, AutoGen, lm‑evaluation‑harvest, Promptfoo, or Ragas)., • Exposure to running evaluation pipelines or agent workloads within secure, enclave, or Kubernetes environments. Our benefits are designed to ensure our employees feel taken care of and are proud to be a part of the Valarian team. We are committed to consistently enhancing our benefit package, taking into account the overall well‑being and needs of our teammates. Here are the key benefits accessible to all employees at Valarian Technologies: • Equity – because you have the right to own what you’re building, • A competitive salary – because we value your unique skills, • Employer pension contributions – because you deserve a secure future, • Private health insurance - because your health is important to us, • Hybrid work setup – because everyone has different needs, • Rewarding company retreats and meetups that respect your work/life balance – because we love getting to know each other! Our culture is built on inclusivity, compassion and flexibility – we want everyone to be empowered to achieve their goals at Valarian. The work we do is vital, but so are the connections that make it happen. We thrive on the shared energy, spontaneous conversations, and mutual trust built when we spend time together. We operate on a hybrid model, gathering in our London office 3 days a week to support one another and collaborate. We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses and identifying potential inconsistencies or verification signals in application materials based on available information. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us. Valarian Technologies Limited is an equal opportunity employer and welcomes applications from individuals regardless of race, colour, religion, sex, sexual orientation, gender, identity or expression, national origin, age, disability, genetic information, marital status, veteran, amnesty, or any other legally protected characteristic. We are committed to ensuring a fair and inclusive recruitment process and providing employment opportunities to all applicants. Decision recruitment, hiring, and employment are based solely on qualifications, skills, and experience relevant to the job requirements. We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses and identifying potential inconsistencies or verification signals in application materials based on available information. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us. #J-18808-Ljbffr

Valarian Technologies is a dual-use technology company building critical tools to safeguard the future in an era of evolving global security challenges. We're rethinking security beyond traditional military domains, addressing asymmetric threats that impact our technological advantage, economic strength, and democratic institutions. We build Acra – the platform foundation for everything we do as a dual-use technology company. The platform’s name, rooted in the Greek word for citadel (or, fortress), reflects the design and purpose of our infrastructure-agnostic secure enclaves: protecting critical data. Some of the government and commercial workflows include: increased operational resiliency for mission-critical systems and functions; enabling organisations to more quickly and widely adopt emerging technologies while ensuring the integrity of their intellectual property; information flow during disaster response scenarios, and zero-trust / least-privilege environments for M&A, attorney-client privileged communications, etc. And we’ve only scratched the surface. At our core, we're driven by a shared mission and a belief in making a tangible impact on our world. Whether you join our London HQ or the wider global organisation, you’ll be a part of collaborative, high-performing teams, creating cutting-edge software, platforms, and infrastructure. We are looking for a Platform Engineer to help build the internal platform capabilities that allow our engineering teams to move quickly without compromising security, reliability, or operational control. This role is more software and product-oriented than a traditional infrastructure role. You will work closely with backend engineers, infrastructure engineers, product teams, and leadership to design and build the tooling, workflows, integrations, and platform primitives that make ACRA easier to develop, deploy, operate, and extend. You will treat the platform as a product. Your users are our engineers. Your goal is to make the safe, reliable, and repeatable path the easiest path: through clean abstractions, useful automation, golden paths, reusable templates, deployment workflows, observability patterns, and developer-facing tooling. We are looking for someone hands-on, curious, and comfortable working across a broad set of DevOps, platform, and CNCF tools. You should have a software engineering mindset and care about maintainability, automation, user experience, reliability, and long-term platform design, not just scripts and infrastructure tasks. You should be able to take ownership of defined areas, move quickly, work well with engineers across the stack, and turn ambiguous platform needs into useful, reliable systems. This is not an internal IT role, cloud administration role, or generic DevOps support role. You will help build the platform as a product. Build and improve the internal platform capabilities used by both engineering teams and customers across ACRA. Design and implement tooling, automation, workflows, and integrations that improve developer velocity and operational consistency. Work closely with backend engineers to make services easier to build, test, deploy, observe, secure, and operate. Build platform primitives for application lifecycle management, environment provisioning, deployment automation, configuration, secrets, observability, and controlled execution. Build and improve golden paths, reusable templates, and self-service workflows for engineering teams. Work with Kubernetes, Docker, Terraform, Argo CD, GitOps, GitHub Actions, Helm, Kustomize, container registries, secrets management, and CNCF tooling. Write code and automation in languages such as Go, Python, TypeScript, or JavaScript. Improve CI/CD pipelines, release workflows, deployment safety, rollback strategies, and environment management. Integrate platform tools into coherent workflows rather than disconnected infrastructure pieces. Evaluate, introduce, and operationalise CNCF tools where they improve the platform. Build systems that work across GCP, on-premise, bare-metal, sovereign cloud, air-gapped, and customer-managed environments. Contribute to observability, alerting, logging, tracing, dashboards, and production debugging workflows. Define platform standards, golden paths, reusable templates, and operational patterns. Work with infrastructure engineers on the boundaries between platform tooling and core infrastructure. Take ownership of defined projects and grow into broader technical responsibility over time. Experience in platform engineering, DevOps, infrastructure engineering, backend engineering, SRE, or developer tooling. Strong hands-on experience with Kubernetes, Docker, CI/CD, and modern deployment workflows. Comfortable writing production-quality automation or tooling in at least one language such as Go, Python, TypeScript, or JavaScript. Familiarity with infrastructure as code and GitOps workflows, especially Terraform, Argo CD, Helm, Kustomize, or similar tools. Experience working with CI/CD systems such as GitHub Actions or similar tooling. Good understanding of how applications are built, containerised, deployed, configured, monitored, and operated. Strong system design fundamentals, especially around reliability, scalability, observability, failure handling, and maintainability. Product-minded approach to platform engineering. You care about why the platform is being built, not just what needs to be implemented. Evidence of building useful tools, automation, deployment systems, reusable templates, self-service workflows, or platform capabilities for other engineers. Comfortable working with backend engineers and understanding application-level requirements. Able to move quickly while still building systems that are understandable, maintainable, and safe. Self-driven, curious, and comfortable taking ownership of defined areas of work. Comfortable working in a startup environment with changing priorities and broad technical exposure. Strong communication skills. You can work across infrastructure, backend, product, and leadership without adding unnecessary process or noise. Experience building internal developer platforms, paved roads, golden paths, or platform-as-a-product capabilities. Experience working in startups, product engineering teams, infrastructure teams, or platform teams with broad ownership. Experience with GCP, on-premise, bare-metal, air-gapped, or restricted deployment environments. Experience with service mesh, network policy, ingress and egress control, or secure service-to-service communication. Familiarity with secrets management tools such as Vault, OpenBao, SOPS, Sealed Secrets, External Secrets, or cloud-native secret managers. Familiarity with supply-chain security concepts such as image signing, vulnerability scanning, SBOMs, artefact verification, admission control, or policy-as-code. Experience with CNCF tools such as cert-manager, External Secrets, OPA, Kyverno, Gatekeeper, Crossplane, Backstage, Argo Workflows, Flux, Prometheus, Grafana, Loki, OpenTelemetry, Istio, Cilium, or Envoy. Experience with backend engineering, APIs, microservices, event-driven systems, or Go services. Experience contributing to systems where auditability, traceability, and operational evidence are important. Experience with secure or regulated environments, such as defence, government, fintech, healthcare, critical infrastructure, sovereign cloud, or customer-managed deployments. Equity – because you have the right to own what you’re building A competitive salary – because we value your unique skills Employer pension contributions – because you deserve a secure future Private health insurance - because your health is important to us Hybrid work setup – because everyone has different needs Rewarding company retreats and meetups that respect your work/life balance – because we love getting to know each other! Our culture is built on inclusivity, compassion and flexibility – we want everyone to be empowered to achieve their goals at Valarian. The work we do is vital, but so are the connections that make it happen. We thrive on the shared energy, spontaneous conversations, and mutual trust built when we spend time together. We operate on a hybrid model, gathering in our London office 3 days a week to support one another and collaborate. Valarian Technologies Limited is an equal opportunity employer and welcomes applications from individuals regardless of race, colour, religion, sex, sexual orientation, gender, identity or expression, national origin, age, disability, genetic information, marital status, veteran, amnesty, or any other legally protected characteristic. We are committed to ensuring a fair and inclusive recruitment process and providing employment opportunities to all applicants. Decision recruitment, hiring, and employment are based solely on qualifications, skills, and experience relevant to the job requirements. #J-18808-Ljbffr

Valarian Technologies is a dual-use technology company building critical tools to safeguard the future in an era of evolving global security challenges. We're rethinking security beyond traditional military domains, addressing asymmetric threats that impact our technological advantage, economic strength, and democratic institutions. We build Acra – the platform foundation for everything we do as a dual-use technology company. The platform’s name, rooted in the Greek word for citadel (or, fortress), reflects the design and purpose of our infrastructure-agnostic secure enclaves: protecting critical data. Some of the government and commercial workflows include: increased operational resiliency for mission-critical systems and functions; enabling organisations to more quickly and widely adopt emerging technologies while ensuring the integrity of their intellectual property; information flow during disaster response scenarios, and zero-trust / least-privilege environments for M&A, attorney-client privileged communications, etc. And we’ve only scratched the surface. At our core, we're driven by a shared mission and a belief in making a tangible impact on our world. Whether you join our London HQ or the wider global organisation, you’ll be a part of collaborative, high-performing teams, creating cutting-edge software, platforms, and infrastructure. As a Release Engineer at Valarian, you will own the delivery pipelines and release lifecycle for Acra—ensuring our hardened platform can be deployed reliably, predictably, and securely across cloud-native, on-premise, and strictly air-gapped environments. Releasing software at Valarian is not a typical SaaS continuous deployment pipeline. Because Acra operates as an enclave citadel in high-consequence environments (defense, government, and highly regulated enterprise), our releases must meet strict cryptographic verification, zero-trust integrity, and reproducible build standards. You will build and maintain the secure build systems, artifacts, release tooling, and deployment automation that allow engineering teams to ship high-velocity code without compromising security, compliance, or operational resiliency. Own the Release Lifecycle: Build, maintain, and optimize CI/CD pipelines and release engineering tooling for the Acra platform stack across multiple environments (multi-cloud, hybrid, on-prem, and air-gapped). Architect Air-Gapped & Offline Packaging: Design reproducible, self-contained release artifacts (Helm charts, container images, binary bundles) capable of deploying seamlessly into environments with zero internet connectivity. Enforce Software Supply Chain Security: Implement cryptographic signing (e.g., Sigstore/Cosign, SLSA provenance), Software Bill of Materials (SBOM) generation, and automated vulnerability gating across all build pipelines. Automate Infrastructure-as-Code (IaC): Maintain release-side IaC and GitOps delivery frameworks (ArgoCD, Flux, Terraform) to ensure target environments maintain consistent posture and deterministic updates. Streamline Developer Velocity & Reliability: Partner closely with platform, security, and application engineering teams to standardize versioning, branching strategies, and automated testing feedback loops. Drive Release Readiness & Auditability: Ensure every Acra platform release produces immutable audit trails, change logs, and evidence artifacts required for government and commercial compliance standards. 4+ years of professional experience in Release Engineering, DevOps, Platform Engineering, or SRE, with a strong focus on secure software delivery pipelines. Deep Cloud-Native & Kubernetes Expertise: Strong hands-on experience with Kubernetes orchestration, Helm, container registries, and cloud-native infrastructure automation. Air-Gapped / Heterogeneous Deployment Experience: Demonstrated experience packaging and releasing software for complex, non-SaaS deployment environments (on-premise, edge, or air-gapped systems). Supply Chain Security Fluency: Solid understanding of build integrity concepts, artifact signing, provenance tracking, vulnerability scanning, and SBOM standards. CI/CD & GitOps Mastery: Proven experience designing enterprise pipelines (GitHub Actions, GitLab CI, Tekton, ArgoCD) with robust testing, canary/blue-green strategies, and rollback mechanisms. Strong Scripting/Coding Skills: Proficiency in Go, Python, Bash, or Rust for building custom release automation tools and CLI utility workflows. Prior experience working in dual-use, Defense, Government, Cyber Security, or Regulated Enterprise environments. SC or DV clearance eligibility in the UK. Experience with cryptographic key management (Vault, KMS) and code-signing infrastructure. Familiarity with zero-trust networking tools and Kubernetes security operators (Cilium, Istio, Kyverno, SPIRE). Our benefits are designed to ensure our employees feel taken care of and are proud to be a part of the Valarian team. We are committed to consistently enhancing our benefit package, taking into account the overall well-being and needs of our teammates. Here are the key benefits accessible to all employees at Valarian Technologies: Equity – because you have the right to own what you’re building A competitive salary – because we value your unique skills Employer pension contributions – because you deserve a secure future Private health insurance - because your health is important to us Hybrid work setup – because everyone has different needs Rewarding company retreats and meetups that respect your work/life balance – because we love getting to know each other! Our culture is built on inclusivity, compassion and flexibility – we want everyone to be empowered to achieve their goals at Valarian. The world is changing, and so is our way of working. If you want to join us in the London office – it’s quite nice! – you’re welcome to; and if you’d prefer to work remotely, that’s fine too. And as we build elegant solutions to simplify the complexities of business collaboration, we also simplify work life: contribute wherever and whenever allows you to be your best self. We trust each other to consistently raise the bar, and we challenge each other to continually reach new heights. We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses and identifying potential inconsistencies or verification signals in application materials based on available information. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us. Valarian Technologies Limited is an equal opportunity employer and welcomes applications from individuals regardless of race, colour, religion, sex, sexual orientation, gender, identity or expression, national origin, age, disability, genetic information, marital status, veteran, amnesty, or any other legally protected characteristic. We are committed to ensuring a fair and inclusive recruitment process and providing employment opportunities to all applicants. Decision recruitment, hiring, and employment are based solely on qualifications, skills, and experience relevant to the job requirements. #J-18808-Ljbffr

Valarian Technologies is a dual-use technology company building critical tools to safeguard the future in an era of evolving global security challenges. We're rethinking security beyond traditional military domains, addressing asymmetric threats that impact our technological advantage, economic strength, and democratic institutions. We build Acra – the platform foundation for everything we do as a dual-use technology company. The platform’s name, rooted in the Greek word for citadel (or, fortress), reflects the design and purpose of our infrastructure-agnostic secure enclaves: protecting critical data. Some of the government and commercial workflows include: increased operational resiliency for mission-critical systems and functions; enabling organisations to more quickly and widely adopt emerging technologies while ensuring the integrity of their intellectual property; information flow during disaster response scenarios, and zero-trust / least-privilege environments for M&A, attorney-client privileged communications, etc. And we’ve only scratched the surface. At our core, we're driven by a shared mission and a belief in making a tangible impact on our world. Whether you join our London HQ or the wider global organisation, you’ll be a part of collaborative, high-performing teams, creating cutting-edge software, platforms, and infrastructure. As a Release Engineer at Valarian, you will own the delivery pipelines and release lifecycle for Acra—ensuring our hardened platform can be deployed reliably, predictably, and securely across cloud-native, on-premise, and strictly air-gapped environments. Releasing software at Valarian is not a typical SaaS continuous deployment pipeline. Because Acra operates as an enclave citadel in high-consequence environments (defense, government, and highly regulated enterprise), our releases must meet strict cryptographic verification, zero-trust integrity, and reproducible build standards. You will build and maintain the secure build systems, artifacts, release tooling, and deployment automation that allow engineering teams to ship high-velocity code without compromising security, compliance, or operational resiliency. • Own the Release Lifecycle: Build, maintain, and optimize CI/CD pipelines and release engineering tooling for the Acra platform stack across multiple environments (multi-cloud, hybrid, on-prem, and air-gapped)., • Architect Air-Gapped & Offline Packaging: Design reproducible, self-contained release artifacts (Helm charts, container images, binary bundles) capable of deploying seamlessly into environments with zero internet connectivity., • Enforce Software Supply Chain Security: Implement cryptographic signing (e.g., Sigstore/Cosign, SLSA provenance), Software Bill of Materials (SBOM) generation, and automated vulnerability gating across all build pipelines., • Automate Infrastructure-as-Code (IaC): Maintain release-side IaC and GitOps delivery frameworks (ArgoCD, Flux, Terraform) to ensure target environments maintain consistent posture and deterministic updates., • Streamline Developer Velocity & Reliability: Partner closely with platform, security, and application engineering teams to standardize versioning, branching strategies, and automated testing feedback loops., • Drive Release Readiness & Auditability: Ensure every Acra platform release produces immutable audit trails, change logs, and evidence artifacts required for government and commercial compliance standards., • 4+ years of professional experience in Release Engineering, DevOps, Platform Engineering, or SRE, with a strong focus on secure software delivery pipelines., • Deep Cloud-Native & Kubernetes Expertise: Strong hands-on experience with Kubernetes orchestration, Helm, container registries, and cloud-native infrastructure automation., • Air-Gapped / Heterogeneous Deployment Experience: Demonstrated experience packaging and releasing software for complex, non-SaaS deployment environments (on-premise, edge, or air-gapped systems)., • Supply Chain Security Fluency: Solid understanding of build integrity concepts, artifact signing, provenance tracking, vulnerability scanning, and SBOM standards., • CI/CD & GitOps Mastery: Proven experience designing enterprise pipelines (GitHub Actions, GitLab CI, Tekton, ArgoCD) with robust testing, canary/blue-green strategies, and rollback mechanisms., • Strong Scripting/Coding Skills: Proficiency in Go, Python, Bash, or Rust for building custom release automation tools and CLI utility workflows., • Prior experience working in dual-use, Defense, Government, Cyber Security, or Regulated Enterprise environments., • SC or DV clearance eligibility in the UK., • Experience with cryptographic key management (Vault, KMS) and code-signing infrastructure., • Familiarity with zero-trust networking tools and Kubernetes security operators (Cilium, Istio, Kyverno, SPIRE)., • Equity – because you have the right to own what you’re building, • A competitive salary – because we value your unique skills, • Employer pension contributions – because you deserve a secure future, • Private health insurance - because your health is important to us, • Hybrid work setup – because everyone has different needs, • Rewarding company retreats and meetups that respect your work/life balance – because we love getting to know each other! Our culture is built on inclusivity, compassion and flexibility – we want everyone to be empowered to achieve their goals at Valarian. The work we do is vital, but so are the connections that make it happen. We thrive on the shared energy, spontaneous conversations, and mutual trust built when we spend time together. We operate on a hybrid model, gathering in our London office 3 days a week to support one another and collaborate. Valarian Technologies Limited is an equal opportunity employer and welcomes applications from individuals regardless of race, colour, religion, sex, sexual orientation, gender, identity or expression, national origin, age, disability, genetic information, marital status, veteran, amnesty, or any other legally protected characteristic. We are committed to ensuring a fair and inclusive recruitment process and providing employment opportunities to all applicants. Decision recruitment, hiring, and employment are based solely on qualifications, skills, and experience relevant to the job requirements. #J-18808-Ljbffr

We are seeking a strong software engineer to build and own the equity-volatility risk platform for our global hedge fund. This engineering-first role owns the systems that capture options, futures, swaps and cash equity positions, compute the full volatility greek surface across every book, and deliver exposure and limit information to volatility PMs and risk managers in near real time. Working alongside the quantitative analysts and researchers who own the vol models and beta framework, the engineer makes those models run correctly, fast, and reliably at firm scale — turning per-book risk snapshots into clean, aggregated, drill-downable exposure PMs trust every trading day, across low-latency services, large-scale data pipelines, distributed compute, and the APIs and interfaces on top of them. • Design, build, and own the firm's risk calculation and exposure aggregation services, from position capture through to delivered risk numbers., • Develop real-time and intraday risk monitoring systems, including limit frameworks, breach detection, alerting, and drill-down interfaces., • Build well-documented APIs and services (REST/gRPC, streaming) that expose risk data to downstream consumers across the firm., • Deliver front-end tooling and dashboards that let risk managers slice exposure by strategy, desk, asset class, factor, and counterparty. Refactor and modernize existing risk processes, replacing batch, spreadsheet, and manual steps with tested, version-controlled services., • Build resilient pipelines for positions, trades, market data, reference data, and counterparty exposures, with automated validation, lineage, and reconciliation., • Own time-series and analytical data stores supporting historical risk, stress replays, and time-travel queries., • Ensure consistency of pricing, position, and P&L data between risk systems and Front Office and Finance platforms., • Productionize risk models supplied by Risk Management and Research., • Translate research prototypes into performant, tested, maintainable production code with clear numerical validation., • Build the tooling that lets model owners backtest, recalibrate, and compare model versions without engineering involvement., • Maintain pricing and sensitivity (Greeks) infrastructure and the libraries that risk and valuation both depend on., • Own the reliability of risk systems end to end: monitoring, alerting, runbooks, on-call, and incident follow-up., • Profile and optimize hot paths — vectorization, caching, concurrency, memory layout, and distributed or grid compute workloads., • Meet hard daily deadlines for overnight and intraday risk production, with automated recovery and clear failure semantics., • Build out CI/CD, automated testing, infrastructure as code, and release processes for a platform that cannot silently produce wrong numbers., • Partner with Risk Managers and Portfolio Managers to turn requirements into shipped software., • Work closely with Front Office quant and trading technology teams on shared pricing, position, and market data infrastructure., • Collaborate with enterprise IT, data, and platform teams on cloud, networking, security, and compute capacity., • Set engineering standards for the risk stack: code review, testing, documentation, and architectural direction., • Mentor junior developers and raise the bar on delivery quality across the team., • Evaluate new technologies pragmatically and lead their adoption where they earn their keep. Software Engineering (Primary) 5+ years building and operating production systems, with deep expertise in Python and at least experience in one systems language Strong grounding in distributed systems, concurrency, service design, and API design; you have owned systems in production, not just written code for them. Solid engineering discipline: automated testing, code review, CI/CD, observability, and infrastructure as code. Comfortable with performance work — profiling, benchmarking, and reasoning about latency and throughput rather than guessing. Data and Infrastructure Proficiency with SQL and analytical or columnar stores Experience with streaming and messaging systems (Kafka, Redis, or equivalent) and workflow orchestration (Airflow, Dagster, or in-house schedulers). Hands‑on experience with containers, Kubernetes, and at least one major cloud platform, alongside grid or distributed compute frameworks. Track record handling large‑scale data volumes where correctness and timeliness both matter. Domain Knowledge Experience at a hedge fund, asset manager, investment bank, or similar institution, ideally supporting risk, valuation, or front‑office systems. Working familiarity with multi‑asset instruments and derivatives, and with how risk is measured and monitored in practice — VaR, stress testing, sensitivities, limits, margin, and financing. You do not need to derive the models, but you should be able to read them, reason about their inputs and outputs, and spot when a number looks wrong. Education BS/MS in Computer Science, Engineering, Mathematics, Physics, or a related quantitative field. An advanced degree is welcome but strong engineering experience matters more. Soft Skills Pragmatic problem solver with high standards for correctness and attention to detail under time pressure. Clear communicator, able to work directly with risk managers and traders and translate between business need and technical design. Self‑motivated, proactive, and comfortable owning systems in a demanding, fast‑moving environment. • Ownership: Take end‑to‑end responsibility for platforms the firm relies on every trading day., • Proximity to the Business: Sit with risk managers and portfolio managers; see the impact of your work immediately., • Engineering Depth: Hard problems in latency, scale, and correctness, on modern infrastructure with real budget behind it., • Global Exposure: Operate within a world‑class organization spanning multiple regions, asset classes, and markets., • Career Development: Join a firm that values expertise, initiative, and innovation. London Jain Global offers a total compensation package which includes a base salary, discretionary bonus, and comprehensive benefits. The estimated base salary range for this position is £150,000- £170,000 which is specific to London and may change in the future. When finalizing an offer, we take into consideration an individual’s experience level and the qualifications they bring to the role to formulate a competitive total compensation package. We are an Equal Opportunity Employer As an employer, we believe every individual brings with them unique diversity of thought and perspectives to meaningfully enrich perspectives of Jain Global teams to drive competitive performance. We believe an inclusive environment can yield exceptional contributions. We are a purpose-built global investment firm where every business is integral, and every role is positioned to make an impact. In a collaborative, intellectually rigorous environment, we invest in our people to build enduring careers and win together. #J-18808-Ljbffr

Job Description:Quantitative Developer - Risk TechnologyPosition OverviewWe are seeking a strong software engineer to build and own the equity-volatility risk platform for our global hedge fund. This engineering-first role owns the systems that capture options, futures, swaps and cash equity positions, compute the full volatility greek surface across every book, and deliver exposure and limit information to volatility PMs and risk managers in near real time. Working alongside the quantitative analysts and researchers who own the vol models and beta framework, the engineer makes those models run correctly, fast, and reliably at firm scale - turning per-book risk snapshots into clean, aggregated, drill-downable exposure PMs trust every trading day, across low-latency services, large-scale data pipelines, distributed compute, and the APIs and interfaces on top of them.Key ResponsibilitiesPlatform and Systems Engineering Design, build, and own the firm's risk calculation and exposure aggregation services, from position capture through to delivered risk numbers. Develop real-time and intraday risk monitoring systems, including limit frameworks, breach detection, alerting, and drill-down interfaces. Build well-documented APIs and services (REST/gRPC, streaming) that expose risk data to downstream consumers across the firm. Deliver front-end tooling and dashboards that let risk managers slice exposure by strategy, desk, asset class, factor, and counterparty.* Refactor and modernize existing risk processes, replacing batch, spreadsheet, and manual steps with tested, version-controlled services.## Data Engineering and Integration Build resilient pipelines for positions, trades, market data, reference data, and counterparty exposures, with automated validation, lineage, and reconciliation. Own time-series and analytical data stores supporting historical risk, stress replays, and time-travel queries.* Ensure consistency of pricing, position, and P&L data between risk systems and Front Office and Finance platforms.## Analytics Delivery Productionize risk models supplied by Risk Management and Research Translate research prototypes into performant, tested, maintainable production code with clear numerical validation. Build the tooling that lets model owners backtest, recalibrate, and compare model versions without engineering involvement. Maintain pricing and sensitivity (Greeks) infrastructure and the libraries that risk and valuation both depend on.## Reliability, Performance, and Operations Own the reliability of risk systems end to end: monitoring, alerting, runbooks, on-call, and incident follow-up. Profile and optimize hot paths - vectorization, caching, concurrency, memory layout, and distributed or grid compute workloads. Meet hard daily deadlines for overnight and intraday risk production, with automated recovery and clear failure semantics. Build out CI/CD, automated testing, infrastructure as code, and release processes for a platform that cannot silently produce wrong numbers.## Collaboration Partner with Risk Managers and Portfolio Managers to turn requirements into shipped software. Work closely with Front Office quant and trading technology teams on shared pricing, position, and market data infrastructure.* Collaborate with enterprise IT, data, and platform teams on cloud, networking, security, and compute capacity.## Technical Leadership Set engineering standards for the risk stack: code review, testing, documentation, and architectural direction. Mentor junior developers and raise the bar on delivery quality across the team.* Evaluate new technologies pragmatically and lead their adoption where they earn their keep.QualificationsSoftware Engineering (Primary) 5+ years building and operating production systems, with deep expertise in Python and at least experience in one systems language Strong grounding in distributed systems, concurrency, service design, and API design; you have owned systems in production, not just written code for them. Solid engineering discipline: automated testing, code review, CI/CD, observability, and infrastructure as code. Comfortable with performance work - profiling, benchmarking, and reasoning about latency and throughput rather than guessing.## Data and Infrastructure Proficiency with SQL and analytical or columnar stores Experience with streaming and messaging systems (Kafka, Redis, or equivalent) and workflow orchestration (Airflow, Dagster, or in-house schedulers). Hands-on experience with containers, Kubernetes, and at least one major cloud platform, alongside grid or distributed compute frameworks. Track record handling large-scale data volumes where correctness and timeliness both matter.## Domain Knowledge Experience at a hedge fund, asset manager, investment bank, or similar institution, ideally supporting risk, valuation, or front-office systems. Working familiarity with multi-asset instruments and derivatives, and with how risk is measured and monitored in practice - VaR, stress testing, sensitivities, limits, margin, and financing.* You do not need to derive the models, but you should be able to read them, reason about their inputs and outputs, and spot when a number looks wrong.## Education* BS/MS in Computer Science, Engineering, Mathematics, Physics, or a related quantitative field. An advanced degree is welcome but strong engineering experience matters more.Soft Skills Pragmatic problem solver with high standards for correctness and attention to detail under time pressure. Clear communicator, able to work directly with risk managers and traders and translate between business need and technical design.* Self-motivated, proactive, and comfortable owning systems in a demanding, fast-moving environment.Why Join Us* Ownership: Take end-to-end responsibility for platforms the firm relies on every trading day.* Proximity to the Business: Sit with risk managers and portfolio managers; see the impact of your work immediately.* Engineering Depth: Hard problems in latency, scale, and correctness, on modern infrastructure with real budget behind it.* Global Exposure: Operate within a world-class organization spanning multiple regions, asset classes, and markets.* Career Development: Join a firm that values expertise, initiative, and innovation, with opportunities for growth and leadership.Location: LondonCompensation:Jain Global offers a total compensation package which includes a base salary, discretionary bonus, and comprehensive benefits. The estimated base salary range for this position is £150,000- £170,000 which is specific to London and may change in the future. When finalizing an offer, we take into consideration an individual's experience level and the qualifications they bring to the role to formulate a competitive total compensation package.We are an Equal Opportunity EmployerAs an employer, we believe every individual brings with them unique diversity of thought and perspectives to meaningfully enrich perspectives of Jain Global teams to drive competitive performance. We believe an inclusive environment can yield exceptional contributions.We are a purpose-built global investment firm where every business is integral, and every role is positioned to make an impact. In a collaborative, intellectually rigorous environment, we invest in our people to build enduring careers and win together. #J-18808-Ljbffr

We are seeking a strong software engineer to build and own the equity-volatility risk platform for our global hedge fund. This engineering-first role owns the systems that capture options, futures, swaps and cash equity positions, compute the full volatility greek surface across every book, and deliver exposure and limit information to volatility PMs and risk managers in near real time. Working alongside the quantitative analysts and researchers who own the vol models and beta framework, the engineer makes those models run correctly, fast, and reliably at firm scale — turning per-book risk snapshots into clean, aggregated, drill-downable exposure PMs trust every trading day, across low-latency services, large-scale data pipelines, distributed compute, and the APIs and interfaces on top of them. • Design, build, and own the firm's risk calculation and exposure aggregation services, from position capture through to delivered risk numbers., • Develop real-time and intraday risk monitoring systems, including limit frameworks, breach detection, alerting, and drill-down interfaces., • Build well-documented APIs and services (REST/gRPC, streaming) that expose risk data to downstream consumers across the firm., • Deliver front-end tooling and dashboards that let risk managers slice exposure by strategy, desk, asset class, factor, and counterparty., • Refactor and modernize existing risk processes, replacing batch, spreadsheet, and manual steps with tested, version-controlled services., • Build resilient pipelines for positions, trades, market data, reference data, and counterparty exposures, with automated validation, lineage, and reconciliation., • Own time-series and analytical data stores supporting historical risk, stress replays, and time-travel queries., • Ensure consistency of pricing, position, and P&L data between risk systems and Front Office and Finance platforms., • Productionize risk models supplied by Risk Management and Research, • Translate research prototypes into performant, tested, maintainable production code with clear numerical validation., • Build the tooling that lets model owners backtest, recalibrate, and compare model versions without engineering involvement., • Own the reliability of risk systems end to end: monitoring, alerting, runbooks, on-call, and incident follow-up., • Profile and optimize hot paths — vectorization, caching, concurrency, memory layout, and distributed or grid compute workloads., • Meet hard daily deadlines for overnight and intraday risk production, with automated recovery and clear failure semantics., • Build out CI/CD, automated testing, infrastructure as code, and release processes for a platform that cannot silently produce wrong numbers., • Partner with Risk Managers and Portfolio Managers to turn requirements into shipped software., • Work closely with Front Office quant and trading technology teams on shared pricing, position, and market data infrastructure., • Collaborate with enterprise IT, data, and platform teams on cloud, networking, security, and compute capacity., • Set engineering standards for the risk stack: code review, testing, documentation, and architectural direction., • Mentor junior developers and raise the bar on delivery quality across the team., • Evaluate new technologies pragmatically and lead their adoption where they earn their keep., • 5+ years building and operating production systems, with deep expertise in Python and at least experience in one systems language, • Strong grounding in distributed systems, concurrency, service design, and API design; you have owned systems in production, not just written code for them., • Solid engineering discipline: automated testing, code review, CI/CD, observability, and infrastructure as code., • Comfortable with performance work — profiling, benchmarking, and reasoning about latency and throughput rather than guessing., • Proficiency with SQL and analytical or columnar stores, • Experience with streaming and messaging systems (Kafka, Redis, or equivalent) and workflow orchestration (Airflow, Dagster, or in-house schedulers)., • Hands-on experience with containers, Kubernetes, and at least one major cloud platform, alongside grid or distributed compute frameworks., • Track record handling large-scale data volumes where correctness and timeliness both matter., • Experience at a hedge fund, asset manager, investment bank, or similar institution, ideally supporting risk, valuation, or front-office systems., • Working familiarity with multi-asset instruments and derivatives, and with how risk is measured and monitored in practice — VaR, stress testing, sensitivities, limits, margin, and financing., • You do not need to derive the models, but you should be able to read them, reason about their inputs and outputs, and spot when a number looks wrong., • BS/MS in Computer Science, Engineering, Mathematics, Physics, or a related quantitative field. An advanced degree is welcome but strong engineering experience matters more., • Pragmatic problem solver with high standards for correctness and attention to detail under time pressure., • Clear communicator, able to work directly with risk managers and traders and translate between business need and technical design., • Self-motivated, proactive, and comfortable owning systems in a demanding, fast-moving environment., • Ownership: Take end-to-end responsibility for platforms the firm relies on every trading day., • Proximity to the Business: Sit with risk managers and portfolio managers; see the impact of your work immediately., • Engineering Depth: Hard problems in latency, scale, and correctness, on modern infrastructure with real budget behind it., • Global Exposure: Operate within a world-class organization spanning multiple regions, asset classes, and markets., • Career Development: Join a firm that values expertise, initiative, and innovation, with opportunities for growth and leadership. London Jain Global offers a total compensation package which includes a base salary, discretionary bonus, and comprehensive benefits. The estimated base salary range for this position is £150,000- £170,000 which is specific to London and may change in the future. When finalizing an offer, we take into consideration an individual’s experience level and the qualifications they bring to the role to formulate a competitive total compensation package. As an employer, we believe every individual brings with them unique diversity of thought and perspectives to meaningfully enrich perspectives of Jain Global teams to drive competitive performance. We believe an inclusive environment can yield exceptional contributions. #J-18808-Ljbffr

Valarian Technologies is a dual-use technology company building critical tools to safeguard the future in an era of evolving global security challenges. We’re rethinking security beyond traditional military domains, addressing asymmetric threats that impact our technological advantage, economic strength, and democratic institutions. We build Acra – the platform foundation for everything we do as a dual-use technology company. The platform’s name, rooted in the Greek word for citadel (or, fortress), reflects the design and purpose of our infrastructure-agnostic secure enclaves: protecting critical data. Some of the government and commercial workflows include: increased operational resiliency for mission-critical systems and functions; enabling organisations to more quickly and widely adopt emerging technologies while ensuring the integrity of their intellectual property; information flow during disaster response scenarios, and zero-trust / least-privilege environments for M&A, attorney-client privileged communications, etc. And we’ve only scratched the surface. At our core, we’re driven by a shared mission and a belief in making a tangible impact on our world. Whether you join our London HQ or the wider global organisation, you’ll be a part of collaborative, high-performing teams, creating cutting-edge software, platforms, and infrastructure. As a Forward Deployed Engineer, you will deploy, extend, and integrate our secure Kubernetes platform (ACRA) into real-world customer workflows. You aren’t just writing backend services in Go—you are partnering directly with end-users to understand their operational constraints, adapting our containerized workloads to their infrastructure, and feeding crucial feedback back into the core platform team. You will write production Go, build React frontend components, configure microservices, and orchestrate Kubernetes workloads while collaborating across frontend, core backend, infrastructure, and AI teams to deliver client outcomes. • Deploy & Integrate: Build backend microservices, APIs, and Custom Resource Definitions (CRDs) in Go to integrate ACRA into diverse customer environments (isolated enclaves, edge clusters, hybrid cloud)., • Bridge Product & Customer: Translate ambiguous client security requirements and user workflows into practical technical implementations without waiting for detailed specs., • Kubernetes Application Development: Develop containerized applications, Helm charts, and event-driven microservices running seamlessly on customer K8s platforms., • Collaborate with Specialists: Partner with embedded DevOps/Infra specialists (for base cluster provisioning) and ML/AI engineers (for model harness integration), keeping client value at the center., • Close the Feedback Loop: Identify recurring integration patterns and work with core engineering to turn custom client fixes into standardized platform features. Go & Backend Engineering: Strong hands‑on experience building microservices, REST/gRPC APIs, or event‑driven backend systems in Go. Kubernetes Application Logic & Tech Stack: Deep familiarity with Docker, K8s manifests, Helm charts, GitOps workflows (Argo/Flux), relational databases (RDBs), KV Caches, and Event Buses, focusing on building applications for Kubernetes. Product & Customer Intuition: Demonstrated experience interfacing with external clients, solutions architects, or cross‑functional teams to solve real operational problems. System Design & Security Boundaries: Clear understanding of workload isolation, secrets management, identity‑aware communication, and failure domain boundaries. Pragmatic Ownership: Comfort operating in ambiguous, fast‑moving environments where debugging spans client applications, networking layers, and platform code. Our benefits are designed to ensure our employees feel taken care of and are proud to be a part of the Valarian team. We are committed to consistently enhancing our benefit package, taking into account the overall well‑being and needs of our teammates. Here are the key benefits accessible to all employees at Valarian Technologies: Equity – because you have the right to own what you’re building A competitive salary – because we value your unique skills Employer pension contributions – because you deserve a secure future Private health insurance - because your health is important to us Hybrid work setup – because everyone has different needs Rewarding company retreats and meetups that respect your work/life balance – because we love getting to know each other! Our culture is built on inclusivity, compassion and flexibility – we want everyone to be empowered to achieve their goals at Valarian. The work we do is vital, but so are the connections that make it happen. We thrive on the shared energy, spontaneous conversations, and mutual trust built when we spend time together. We operate on a hybrid model, gathering in our London office 3 days a week to support one another and collaborate. We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses and identifying potential inconsistencies or verification signals in application materials based on available information. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us. #J-18808-Ljbffr

Valarian: Innovating for the new era of digital sovereignty Valarian Technologies is a dual-use technology company building critical tools to safeguard the future in an era of evolving global security challenges. We're rethinking security beyond traditional military domains, addressing asymmetric threats that impact our technological advantage, economic strength, and democratic institutions. We build Acra – the platform foundation for everything we do as a dual-use technology company. The platform’s name, rooted in the Greek word for citadel (or, fortress), reflects the design and purpose of our infrastructure-agnostic secure enclaves: protecting critical data. Some of the government and commercial workflows include: increased operational resiliency for mission‑critical systems and functions; enabling organizations to more quickly and widely adopt emerging technologies while ensuring the integrity of their intellectual property; information flow during disaster response scenarios, and zero‑trust / least‑privilege environments for M&A, attorney‑client privileged communications, etc. And we’ve only scratched the surface. At our core, we're driven by a shared mission and a belief in making a tangible impact on our world. Whether you join our London HQ or the wider global organisation, you’ll be a part of collaborative, high‑performing teams, creating cutting‑edge software, platforms, and infrastructure. Valarian: Innovating for the new era of digital sovereignty Valarian Technologies is a dual-use technology company building critical tools to safeguard the future in an era of evolving global security challenges. We're rethinking security beyond traditional military domains, addressing asymmetric threats that impact our technological advantage, economic strength, and democratic institutions. We build Acra – the platform foundation for everything we do as a dual-use technology company. The platform’s name, rooted in the Greek word for citadel (or, fortress), reflects the design and purpose of our infrastructure-agnostic secure enclaves: protecting critical data. Some of the government and commercial workflows include: increased operational resiliency for mission‑critical systems and functions; enabling organizations to more quickly and widely adopt emerging technologies while ensuring the integrity of their intellectual property; information flow during disaster response scenarios, and zero‑trust / least‑privilege environments for M&A, attorney‑client privileged communications, etc. And we’ve only scratched the surface. At our core, we're driven by a shared mission and a belief in making a tangible impact on our world. Whether you join our London HQ or the wider global organisation, you’ll be a part of collaborative, high‑performing teams, creating cutting‑edge software, platforms, and infrastructure. As Head of Information Security at Valarian, you will define and lead our security strategy with a strong focus on protecting our digital ecosystem, spanning cloud infrastructure, SaaS platforms, and internal tooling. You’ll be responsible for securing how our organisation operates day-to-day: from identity and access across SaaS tools, to cloud architecture, to data protection across systems. This is a hands‑on leadership role combining strategy, architecture, and execution. You’ll work closely with Engineering, Product, Legal, and Leadership to embed security into everything we build, while evolving our compliance posture across ISO‑27001 and SOC-2 (including expansion into additional controls). • Own and execute Valarian’s end-to-end information security strategy, • Lead and mature our security posture across compliance frameworks, including ISO‑27001, SOC-2, and expansion into additional control frameworks, • Design and implement scalable security architecture across cloud, infrastructure, and applications, • Partner with Engineering to embed secure‑by‑design principles into development workflows, • Build, manage, and continuously improve security policies, standards, and controls, • Lead risk management, threat modeling, and vulnerability management processes, • Oversee incident detection, response, and recovery planning, • Drive security awareness and training across the company, • Establish and manage identity and access management (IAM), SSO, and device security across the organisation, • Manage audits, certifications, and relationships with external assessors, • Establish metrics and reporting to provide visibility into security posture and risk, • Hire, develop, and lead a high‑performing security team as the company grows, • Proven experience leading information security in a cloud-first, SaaS-heavy environment, • Deep expertise in securing cloud infrastructure and modern workplace tooling, • Strong hands‑on experience with identity and access management, SSO, and zero‑trust approaches, • Experience managing and securing a broad ecosystem, including vendor risk and access governance, • Practical experience with SOC-2 and ISO-27001, • Strong understanding of cloud security principles (networking, IAM, secrets management, logging, monitoring), • Experience implementing security tooling such as SIEM, EDR, and CSPM security platforms, • Track record of building scalable, pragmatic security programs in high‑growth environments, • Ability to balance strong security practices with usability and business velocity, • Excellent stakeholder management and communication skills across teams, • Experience building or scaling security teams (or readiness to do so), • A focus on real‑world risk reduction over checkbox compliance Our benefits are designed to ensure our employees feel taken care of and are proud to be a part of the Valarian team. We are committed to consistently enhancing our benefit package, taking into account the overall well‑being and needs of our teammates. Here are the key benefits accessible to all employees at Valarian Technologies: • Equity – because you have the right to own what you’re building, • A competitive salary – because we value your unique skills, • Employer pension contributions – because you deserve a secure future, • Hybrid work setup – because everyone has different needs, • Rewarding company retreats and meetups that respect your work/life balance – because we love getting to know each other! Our culture is built on inclusivity, compassion and flexibility – we want everyone to be empowered to achieve their goals at Valarian. The world is changing, and so is our way of working. If you want to join us in the London office – it’s quite nice! – you’re welcome to; and if you’d prefer to work remotely, that’s fine too. And as we build elegant solutions to simplify the complexities of business collaboration, we also simplify work life: contribute wherever and whenever allows you to be your best self. We trust each other to consistently raise the bar, and we challenge each other to continually reach new heights. Valarian Technologies Limited is an equal opportunity employer and welcomes applications from individuals regardless of race, colour, religion, sex, sexual orientation, gender, identity or expression, national origin, age, disability, genetic information, marital status, veteran, amnesty, or any other legally protected characteristic. We are committed to ensuring a fair and inclusive recruitment process and providing employment opportunities to all applicants. Decision recruitment, hiring, and employment are based solely on qualifications, skills, and experience relevant to the job requirements. We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses and identifying potential inconsistencies or verification signals in application materials based on available information. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us. #J-18808-Ljbffr

Valarian Technologies is a dual-use technology company building critical tools to safeguard the future in an era of evolving global security challenges. We're rethinking security beyond traditional military domains, addressing asymmetric threats that impact our technological advantage, economic strength, and democratic institutions. We build Acra – the platform foundation for everything we do as a dual-use technology company. The platform’s name, rooted in the Greek word for citadel (or, fortress), reflects the design and purpose of our infrastructure-agnostic secure enclaves: protecting critical data. Some of the government and commercial workflows include: increased operational resiliency for mission-critical systems and functions; enabling organisations to more quickly and widely adopt emerging technologies while ensuring the integrity of their intellectual property; information flow during disaster response scenarios, and zero-trust / least-privilege environments for M&A, attorney-client privileged communications, etc. And we’ve only scratched the surface. At our core, we're driven by a shared mission and a belief in making a tangible impact on our world. Whether you join our London HQ or the wider global organisation, you’ll be a part of collaborative, high-performing teams, creating cutting-edge software, platforms, and infrastructure. As IT support at Valarian, you will support and evolve our internal IT function, ensuring it is secure, scalable, and aligned with our mission to build resilient, sovereign digital infrastructure. You will be responsible for managing a modern, cloud-first environment, while partnering closely with the TechOps Lead to strengthen and expand our compliance and security posture. This is a hands-on role where you will define IT strategy, implement best-in-class tooling and processes, and build the foundations required to support a high-growth, security-conscious organisation operating under frameworks such as ISO-27001, Cyber Essentials and SOC-2 (with ongoing expansion of controls). Support and operate Valarian’s IT environment, including device management, identity systems, and SaaS tooling across a fully cloud-based infrastructure Design, implement, and continuously improve IT policies, standards, and processes to support a secure and scalable organisation Partner closely with the TechOps Lead to align IT operations with security strategy, contributing to and supporting compliance initiatives (CE/CE+, SOC 2, and future frameworks) Support the expansion and maturity of IT controls that underpin broader security and compliance programs Support and optimise endpoint management, access control, and identity lifecycle processes (e.g. onboarding, offboarding, role-based access) Evaluate, select, and implement IT tools and systems that improve productivity, security, and operational efficiency Act as an escalation point for IT issues, while also building lightweight, scalable support processes for the business Maintain visibility and control over asset management, device posture, and system health Support business continuity and resilience planning from an IT systems perspective Proven experience supporting IT in a modern, cloud-first environment Experience operating in a high-growth startup environment, including supporting the setup and scaling of new office locations, IT infrastructure, and employee onboarding processes Comfortable building IT operations from the ground up in fast-moving environments, with experience establishing reliable systems, vendor relationships, and workplace technology for expanding teams Strong hands-on experience managing macOS fleets (e.g. via MDM solutions such as Jamf, Kandji, or similar) Deep familiarity with SaaS-based infrastructure, identity providers (e.g. Okta, Google Workspace, Azure AD), and zero-trust principles Experience working alongside security teams and contributing to compliance frameworks such as SOC-2; exposure to UK government standards is highly desirable Strong understanding of IT controls, access management, and endpoint security in high-assurance environments Clear communication skills and the ability to work cross-functionally with security, engineering, and operations teams A proactive, ownership-driven mindset with a focus on continuous improvement Alignment with Valarian’s mission to drive security, resilience, and digital sovereignty Our benefits are designed to ensure our employees feel taken care of and are proud to be a part of the Valarian team. We are committed to consistently enhancing our benefit package, taking into account the overall well-being and needs of our teammates. Here are the key benefits accessible to all employees at Valarian Technologies: Equity – because you have the right to own what you’re building A competitive salary – because we value your unique skills Employer pension contributions – because you deserve a secure future Hybrid work setup – because everyone has different needs Rewarding company retreats and meetups that respect your work/life balance – because we love getting to know each other! Our culture is built on inclusivity, compassion and flexibility – we want everyone to be empowered to achieve their goals at Valarian. The work we do is vital, but so are the connections that make it happen. We thrive on the shared energy, spontaneous conversations, and mutual trust built when we spend time together. We operate on a hybrid model, gathering in our London office 3 days a week to support one another and collaborate. We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses and identifying potential inconsistencies or verification signals in application materials based on available information. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us. Valarian Technologies Limited is an equal opportunity employer and welcomes applications from individuals regardless of race, colour, religion, sex, sexual orientation, gender, identity or expression, national origin, age, disability, genetic information, marital status, veteran, amnesty, or any other legally protected characteristic. We are committed to ensuring a fair and inclusive recruitment process and providing employment opportunities to all applicants. Decision recruitment, hiring, and employment are based solely on qualifications, skills, and experience relevant to the job requirements. #J-18808-Ljbffr

Valarian Technologies is a dual-use technology company building critical tools to safeguard the future in an era of evolving global security challenges. We're rethinking security beyond traditional military domains, addressing asymmetric threats that impact our technological advantage, economic strength, and democratic institutions. We build Acra – the platform foundation for everything we do as a dual-use technology company. The platform’s name, rooted in the Greek word for citadel (or, fortress), reflects the design and purpose of our infrastructure-agnostic secure enclaves: protecting critical data. Some of the government and commercial workflows include: increased operational resiliency for mission-critical systems and functions; enabling organisations to more quickly and widely adopt emerging technologies while ensuring the integrity of their intellectual property; information flow during disaster response scenarios, and zero-trust / least-privilege environments for M&A, attorney-client privileged communications, etc. And we’ve only scratched the surface. At our core, we're driven by a shared mission and a belief in making a tangible impact on our world. Whether you join our London HQ or the wider global organisation, you’ll be a part of collaborative, high-performing teams, creating cutting‑edge software, platforms, and infrastructure. As an AI Harness Engineer at Valarian, you will own the experimental design, evaluation methodologies, and benchmark infrastructure for our AI models and autonomous agentic workloads. In an emerging domain with no standard playbook, you will serve as the bridge between rigorous data science, statistical validation, and production agent scaffolding. You will design robust evaluation datasets, architect calibrated LLM-as-a-judge pipelines, and build metrics that accurately capture multi-step agent performance under non-deterministic conditions. Your insights and error analyses will directly drive iterative improvements to our harness scaffolding, tool orchestration, and system safety guardrails. Architect Evaluation Runtimes & Harnesses: Design and maintain scalable Python evaluation harnesses that measure task completion, trajectory quality, tool-use correctness, cost, latency, and variance across multi-step agentic systems. Design Experiments & Validate Results: Apply rigorous statistical methods—including hypothesis testing, confidence intervals, bootstrapping, and power analysis—to determine whether performance changes are true system improvements or stochastic noise. Build & Calibrate LLM-as-a-Judge Pipelines: Develop automated judging systems validated against human ground truth. Measure alignment using agreement metrics (Cohen’s kappa, correlation, precision/recall) and systematically detect judge failure modes such as position bias, verbosity bias, self-preference, and prompt sensitivity. Curate Benchmark Datasets & Rubrics: Define sampling strategies, detailed annotation guidelines, and scoring rubrics. Measure inter‑annotator agreement and manage label noise to ensure benchmark integrity over time. Deep Error & Trajectory Analysis: Conduct hands‑on failure analysis on agent runs, cluster root causes into actionable error categories, and clearly communicate findings to both engineering teams and stakeholders. Drive Harness Scaffolding Iteration: Translate evaluation results directly into architectural improvements across agent scaffolding, prompt design, tool execution loops, context window compaction, retries, and safety guardrails. Grounding in Statistics & Experimental Design: Demonstrated expertise in hypothesis testing, bootstrapping, power analysis, and statistical significance within probabilistic machine learning systems. LLM-as-a-Judge Validation: Proven experience building, auditing, and validating LLM judge setups against human annotations, including tracking agreement metrics and mitigating judge biases. Evaluation Dataset Engineering: Strong track record designing evaluation datasets, crafting precise scoring rubrics, managing label noise, and measuring inter‑annotator agreement. Evaluation of Non‑Deterministic Multi‑Step Systems: Deep comfort evaluating complex agent trajectories, tool execution sequences, latency, cost, and variance across repeated runs rather than relying solely on single‑shot benchmarks. Metric Design & Integrity: Exceptional judgment in defining metrics tied to real‑world outcomes, with a keen eye for detecting benchmark gaming, target drift, or shortcut learning. Rigor in Error Analysis: Ability to dissect complex execution logs, categorize failure modes, and synthesize clear, data‑driven recommendations. Hands‑On LLM Integration: Practical proficiency with LLM APIs, prompt engineering, structured outputs, function/tool calling, and retrieval systems in Python. Agent Architecture Awareness: Clear understanding of planning loops, tool orchestration, memory management, and multi‑agent coordination, including their trade‑offs and common failure modes. Harness & Scaffolding Contribution: Ability to write clean, maintainable Python code to iterate on harness components such as guardrails, retry logic, state handling, and context management. • Experience with agent and evaluation frameworks (e.g., LangChain, LangGraph, AutoGen, lm-evaluation-harness, Promptfoo, or Ragas)., • Exposure to running evaluation pipelines or agent workloads within secure, enclave, or Kubernetes environments. Our benefits are designed to ensure our employees feel taken care of and are proud to be a part of the Valarian team. We are committed to consistently enhancing our benefit package, taking into account the overall well‑being and needs of our teammates. Here are the key benefits accessible to all employees at Valarian Technologies: • Equity – because you have the right to own what you’re building, • A competitive salary – because we value your unique skills, • Employer pension contributions – because you deserve a secure future, • Private health insurance - because your health is important to us, • Hybrid work setup – because everyone has different needs, • Rewarding company retreats and meetups that respect your work/life balance – because we love getting to know each other! Our culture is built on inclusivity, compassion and flexibility – we want everyone to be empowered to achieve their goals at Valarian. The work we do is vital, but so are the connections that make it happen. We thrive on the shared energy, spontaneous conversations, and mutual trust built when we spend time together. We operate on a hybrid model, gathering in our London office 3 days a week to support one another and collaborate. We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses and identifying potential inconsistencies or verification signals in application materials based on available information. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us. Valarian Technologies Limited is an equal opportunity employer and welcomes applications from individuals regardless of race, colour, religion, sex, sexual orientation, gender, identity or expression, national origin, age, disability, genetic information, marital status, veteran, amnesty, or any other legally protected characteristic. We are committed to ensuring a fair and inclusive recruitment process and providing employment opportunities to all applicants. Decision recruitment, hiring, and employment are based solely on qualifications, skills, and experience relevant to the job requirements. #J-18808-Ljbffr

At the end of this thrilling journey, you'll become a proud member of Hack The Box, with the ultimate mission to help cybersecurity professionals and organizations enhance their cyber-attack readiness. Get ready for an exciting adventure into the world of cybersecurity! This is an exciting opportunity to lead Hack The Box’s field marketing strategy across Europe, with a primary focus on the commercial and enterprise markets. You will serve as the strategic marketing partner to the EMEA Sales organization, building integrated regional programs that generate demand, deepen engagement within priority accounts, accelerate opportunities, and contribute to pipeline and revenue. This role is broader than event marketing. Events will be one component of a coordinated regional strategy that also includes account-based marketing, digital campaigns, webinars, executive programs, partner activation, customer marketing, content, and sales plays. During your first six months, you will focus on developing the EMEA marketing strategy, building strong relationships with Sales, identifying regional priorities and target accounts, launching initial campaigns, and establishing a consistent approach to reporting and optimization. • Europe(EoR-EmployeeofRecordthroughDeel)ORAthens,Greece(we'llsupportyourrelocation), • If in Athens, Greece: Hybrid (2 days in office), • Full time, • We offer a 10% relocation bonus on the annual salary to support your move., • In addition, you would benefit from a 50% tax reduction on your income as part of the relocation., • We'll support you with accommodation during the first few weeks Reporting to the Global Director of Field Marketing, you will join Hack The Box’s global marketing organization and collaborate closely with Demand Generation, Partner Marketing, Product Marketing, Content, Digital, Brand, Communications, Customer Marketing, and Marketing Operations. You will be a key partner to EMEA Sales leadership, account executives, business development representatives, solutions engineers, and channel teams. You will help connect global marketing priorities with the needs of the region and operate as the marketing lead for your market. • Own the EMEA field marketing strategy from ideation and planning through execution, measurement, and optimization., • Partner with EMEA Sales leadership to develop quarterly and annual marketing plans aligned with regional pipeline, revenue, and account goals., • Build integrated regional campaigns using account-based marketing, digital programs, content, webinars, executive engagement, partner initiatives, customer advocacy, and strategic events., • Translate global campaigns into relevant regional programs based on EMEA market needs, sales priorities, buyer challenges, and competitive trends., • Develop account-based programs for priority enterprise accounts and strategic opportunities., • Create marketing plays that help Sales open doors, engage additional buying-group members, progress opportunities, and re-engage stalled or closed-lost accounts., • Partner with Business Development and Sales to establish clear lead follow-up plans, campaign activation strategies, and shared success metrics., • Develop audience‑specific programs for CISOs, security leaders, technical practitioners, talent‑development leaders, and other members of the buying committee., • Build regional webinar, roundtable, executive‑engagement, and thought‑leadership programs that position Hack The Box as a leader in cyber workforce readiness., • Create coordinated pre‑event, onsite, and post‑event campaigns that extend the value of trade shows and field programs., • Work with Partner Marketing to develop joint campaigns that generate demand and pipeline with strategic channel and technology partners., • Collaborate with Customer Marketing to feature customer stories, support expansion opportunities, and build regional advocacy., • Manage the EMEA field marketing budget and make investment recommendations based on strategic importance and expected business impact., • Establish clear goals for every program, including target‑account engagement, lead quality, pipeline creation, opportunity acceleration, and influenced revenue., • Communicate campaign plans, performance, insights, and next steps consistently to Sales and Marketing stakeholders., • Analyze results and sales feedback to improve audience targeting, messaging, channel selection, and future investments., • Maintain visibility into regional market trends, customer needs, competitor activity, and emerging opportunities. What success looks like • A clear, scalable, and measurable EMEA field marketing strategy is in place., • Sales and Marketing are aligned around regional priorities, target accounts, programs, and goals., • Integrated campaigns create qualified pipeline and influence revenue., • Engagement increases within priority accounts and across key buying groups., • Marketing programs support both new‑logo acquisition and opportunity acceleration., • Regional events operate as part of broader campaigns with measurable pre‑event and post‑event outcomes., • Program insights are consistently used to optimize the marketing mix and regional investment strategy., • At least five years of B2B marketing experience, including field marketing, demand generation, account‑based marketing (ABM), or integrated campaigns., • Experience marketing enterprise SaaS or technology solutions; cybersecurity experience is strongly preferred., • Demonstrated success building regional, multi‑channel marketing programs that contribute to pipeline generation, opportunity acceleration, and revenue growth., • Strong understanding of enterprise sales cycles, account‑based marketing, buying groups, and opportunity acceleration, with a track record of working closely with Sales, Business Development, Partner, and Customer Success teams., • Hands‑on experience with marketing automation, CRM, ABM, analytics, and reporting platforms such as HubSpot. Experience using AI‑powered marketing tools to improve campaign planning, content development, audience targeting, personalization, and performance analysis is highly desirable., • Ability to develop marketing strategies aligned with business objectives while remaining hands‑on in campaign execution. Strong project‑management skills, with the ability to manage multiple campaigns, stakeholders, budgets, and deadlines., • Excellent communication, collaboration, and stakeholder‑management skills, with a creative, adaptable approach and the ability to thrive in a fast‑paced global organization., • You have the exhilarating opportunity to contribute to a product that is highly appreciated by users and the cybersecurity community at large., • You’ll experience a highly supportive and caring environment, fostering growth, flexibility, and autonomy., • You’ll embark on an exciting journey of continuous learning and problem‑solving, leveling up as our organization grows., • Most importantly, you’ll have a blast at HTB because fun is an essential ingredient in our recipe for success! Just wait until you see our global meet‑ups!, • Private Health Care & Life Insurance, • Home Office Allowance, • Ticket Restaurant Allowance, • Paid paternity leave, • Dedicated budget for training and professional development, participation in conferences, • State-of-the-art equipment, • Full access to the Hack The Box lab offerings; so you can learn how to hack, • Fully remote is an option. But we do have an office in London & Folkestone, UK Hack Your Career, Today. Join us in this epic adventure of cybersecurity at Hack The Box! At Hack The Box, we are on a quest to find the most exceptional and enthusiastic talent to join our team. Whether or not you consider yourself a gamer, we value what makes you unique and want to know more about you. This job post provides just a glimpse of the incredible gamified experience our business and consumer customers enjoy through our platforms. So, if you're ready to embark on a journey of disruption, growth, and adventure, we can't wait to meet you! Hack The Box is the leading cyber readiness platform for the agentic era, battle-testing and upskilling both humans and AI agents to enhance organizational cyber resilience. Trusted by the Fortune 500, government agencies, and MSSPs, the platform delivers threat-informed learning paths consisting of real-world scenarios in gamified labs and live-fire simulations that build and validate offensive and defensive cyber capabilities. With a loyal community of more than 4 million members and 800+ enterprise customers, Hack The Box empowers teams and intelligent systems alike to strengthen cyber defenses and reduce breach risk effectively. Rapidly growing its international footprint and reach, Hack The Box is headquartered in the UK, with additional offices in the US, Australia, and Greece. News & Resources: • We’re incredibly proud to share that our headquarters in the UK, along with our entities in Greece and the US, have been certified as a Great Place to Work for 4 consecutive years (2023 - 2026)., • In addition, our Greek entity has been recognized among the Best Workplaces in Greece (4th, 2nd, 3rd, 1st) and Europe (7th, 10th, 73rd) during this period — a testament to our strong culture and commitment to creating an exceptional employee experience! At Hack The Box, we are committed to fostering a diverse, inclusive, and equitable workplace. We believe that diversity enriches our performance, services, and the communities we serve. As such, we ensure that all job applications are considered solely based on merit, skills, and qualifications. We do not discriminate on grounds of race, color, religion, gender, gender identity or expression, sexual orientation, national origin, genetics, disability, age, or veteran status. We are dedicated to providing a fair and respectful work environment that reflects our values. #J-18808-Ljbffr

What's in it for you? Weekly Pay Team meal whilst on shift prepared by our chefs Soho Friends Membership 50% Team discount on Food Drink, 7 days a week Staff Room Rates Health Cash Plan (option to up to 2 additional dependents) Dental Plan (option to add up to 2 additional dependents) Birthday Day O

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Valarian Technologies is a dual-use technology company building critical tools to safeguard the future in an era of evolving global security challenges. We're rethinking security beyond traditional military domains, addressing asymmetric threats that impact our technological advantage, economic strength, and democratic institutions. We build Acra – the platform foundation for everything we do as a dual-use technology company. The platform’s name, rooted in the Greek word for citadel (or, fortress), reflects the design and purpose of our infrastructure-agnostic secure enclaves: protecting critical data. Some of the government and commercial workflows include: increased operational resiliency for mission-critical systems and functions; enabling organisations to more quickly and widely adopt emerging technologies while ensuring the integrity of their intellectual property; information flow during disaster response scenarios, and zero-trust / least-privilege environments for M&A, attorney-client privileged communications, etc. And we’ve only scratched the surface. At our core, we're driven by a shared mission and a belief in making a tangible impact on our world. Whether you join our London HQ or the wider global organisation, you’ll be a part of collaborative, high-performing teams, creating cutting-edge software, platforms, and infrastructure. We are looking for a Senior Infrastructure Engineer to own and evolve the foundational infrastructure layer behind ACRA. This is a deep infrastructure role. You will work across Kubernetes, Linux, networking, storage, service-to-service communication, observability, security boundaries, and production operations. You will be responsible for the systems that everything else depends on: clusters, networks, storage layers, ingress and egress paths, runtime infrastructure, deployment foundations, and operational reliability. Infrastructure is part of the product at Valarian. ACRA only works if the underlying infrastructure is secure, observable, debuggable, resilient, and able to run across cloud, on-premise, bare-metal, sovereign, air-gapped, and customer-managed environments. We are looking for someone with strong judgement and real production experience. This role values depth, operational correctness, and careful decision-making. You should be comfortable going deep into complex operational problems, understanding failure modes, debugging under pressure, and improving the reliability of the whole platform. You should be comfortable operating close to the metal: debugging Kubernetes, understanding networking behaviour, reasoning about distributed storage, improving observability, and helping define the infrastructure patterns that ACRA will rely on as it scales. This is not a generic DevOps support role, cloud administration role, or internal IT role. You will be a critical engineer in the team responsible for the infrastructure foundations of a high-trust platform. • Design, build, operate, and improve Kubernetes-based infrastructure for ACRA., • Own core infrastructure plumbing across networking, storage, workload scheduling, service communication, ingress, egress, DNS, certificates, and cluster-level security., • Operate and debug production Kubernetes environments across GCP, on-premise, bare-metal, sovereign cloud, air-gapped, and customer-managed deployments., • Work on multi-cluster Kubernetes environments, cluster networking, network policy, service mesh, and secure service-to-service communication., • Operate and evolve distributed storage systems, including storage classes, CSI drivers, capacity planning, replication, recovery, and failure handling., • Work with infrastructure technologies such as Kubernetes, Linux, Cilium, eBPF, Istio, Rook Ceph, Terraform, Argo CD, GitOps, Helm, and related CNCF tooling., • Build infrastructure automation that improves repeatability, reliability, and operational safety., • Improve observability across infrastructure layers, including metrics, logs, traces, alerting, dashboards, and operational runbooks., • Investigate and resolve complex production issues across networking, storage, Kubernetes, Linux, and application infrastructure., • Contribute to incident response, root-cause analysis, capacity planning, disaster recovery, and production readiness., • Define infrastructure standards, operational boundaries, security controls, and deployment patterns across the platform., • Work closely with engineering teams to make services easier to deploy, operate, monitor, and debug., • Contribute to the long-term technical direction of the DevOps department and the infrastructure foundations of ACRA., • Strong experience in infrastructure engineering, platform engineering, DevOps, SRE, or production systems engineering., • Deep hands-on experience operating Kubernetes in production., • Strong understanding of Linux systems, containers, networking, storage, and distributed infrastructure., • Strong networking fundamentals, including TCP/IP, DNS, TLS, routing, load balancing, ingress, egress, network policy, and service discovery., • Experience debugging difficult infrastructure issues across clusters, nodes, pods, networks, storage, and workloads., • Experience with Kubernetes networking, CNI, service mesh, network policy, or secure service-to-service communication., • Experience or strong working knowledge in at least one deep infrastructure area such as Kubernetes networking, distributed storage, Linux systems, bare-metal infrastructure, multi-cluster operations, or production incident response., • Experience with infrastructure as code and GitOps workflows, especially Terraform, Argo CD, Helm, Kustomize, or similar tooling., • Experience building reliable infrastructure for production environments where uptime, security, and operational clarity matter., • Comfortable working across cloud, on-premise, bare-metal, restricted, or customer-managed environments., • Strong operational judgement, especially around reliability, resilience, failure domains, and production risk., • Strong ownership mindset. You can take responsibility for critical systems and improve them over time., • Clear communication skills. You can explain complex infrastructure problems to engineering and leadership without adding noise., • Comfortable working in a startup environment with ambiguity, changing priorities, and broad technical responsibility., • Experience with distributed storage systems, especially Rook Ceph or Ceph., • Experience with Cilium, eBPF, cluster mesh, Istio, Envoy, or similar networking and service mesh technologies., • Experience with multi-cluster Kubernetes environments., • Experience operating Kubernetes or OpenShift outside simple managed-cloud environments, including bare-metal, VMware, sovereign, air-gapped, regulated, or customer-managed deployments., • Experience operating infrastructure in secure, regulated, sovereign, air-gapped, defence, government, fintech, healthcare, critical infrastructure, or customer-managed environments., • Experience with zero-trust architecture, workload isolation, identity-aware networking, policy enforcement, or runtime security., • Experience with secrets management tools such as Vault, OpenBao, SOPS, Sealed Secrets, External Secrets, or cloud-native secret managers., • Experience with observability stacks such as Prometheus, Grafana, Loki, OpenTelemetry, Jaeger, ELK, Dynatrace, or similar tooling., • Experience with supply-chain security, including image signing, vulnerability scanning, SBOMs, artefact verification, admission control, or policy-as-code., • Experience designing infrastructure where auditability, traceability, recoverability, and operational evidence are first-class requirements. Our benefits are designed to ensure our employees feel taken care of and are proud to be a part of the Valarian team. We are committed to consistently enhancing our benefit package, taking into account the overall well-being and needs of our teammates. Here are the key benefits accessible to all employees at Valarian Technologies: • Equity – because you have the right to own what you’re building, • A competitive salary – because we value your unique skills, • Employer pension contributions – because you deserve a secure future, • Private health insurance - because your health is important to us, • Hybrid work setup – because everyone has different needs, • Rewarding company retreats and meetups that respect your work/life balance – because we love getting to know each other! Our culture is built on inclusivity, compassion and flexibility – we want everyone to be empowered to achieve their goals at Valarian. The work we do is vital, but so are the connections that make it happen. We thrive on the shared energy, spontaneous conversations, and mutual trust built when we spend time together. We operate on a hybrid model, gathering in our London office 3 days a week to support one another and collaborate. We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses and identifying potential inconsistencies or verification signals in application materials based on available information. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us. Valarian Technologies Limited is an equal opportunity employer and welcomes applications from individuals regardless of race, colour, religion, sex, sexual orientation, gender, identity or expression, national origin, age, disability, genetic information, marital status, veteran, amnesty, or any other legally protected characteristic. We are committed to ensuring a fair and inclusive recruitment process and providing employment opportunities to all applicants. Decision recruitment, hiring, and employment are based solely on qualifications, skills, and experience relevant to the job requirements. #J-18808-Ljbffr

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Valarian Technologies is a dual-use technology company building critical tools to safeguard the future in an era of evolving global security challenges. We're rethinking security beyond traditional military domains, addressing asymmetric threats that impact our technological advantage, economic strength, and democratic institutions. We build Acra – the platform foundation for everything we do as a dual-use technology company. The platform’s name, rooted in the Greek word for citadel (or, fortress), reflects the design and purpose of our infrastructure-agnostic secure enclaves: protecting critical data. Some of the government and commercial workflows include: increased operational resiliency for mission-critical systems and functions; enabling organisations to more quickly and widely adopt emerging technologies while ensuring the integrity of their intellectual property; information flow during disaster response scenarios, and zero-trust / least-privilege environments for M&A, attorney-client privileged communications, etc. And we’ve only scratched the surface. At our core, we're driven by a shared mission and a belief in making a tangible impact on our world. Whether you join our London HQ or the wider global organisation, you’ll be a part of collaborative, high-performing teams, creating cutting-edge software, platforms, and infrastructure. As an AI Harness Engineer at Valarian, you will own the experimental design, evaluation methodologies, and benchmark infrastructure for our AI models and autonomous agentic workloads. In an emerging domain with no standard playbook, you will serve as the bridge between rigorous data science, statistical validation, and production agent scaffolding. You will design robust evaluation datasets, architect calibrated LLM-as-a-judge pipelines, and build metrics that accurately capture multi-step agent performance under non-deterministic conditions. Your insights and error analyses will directly drive iterative improvements to our harness scaffolding, tool orchestration, and system safety guardrails. Architect Evaluation Runtimes & Harnesses: Design and maintain scalable Python evaluation harnesses that measure task completion, trajectory quality, tool-use correctness, cost, latency, and variance across multi-step agentic systems. Design Experiments & Validate Results: Apply rigorous statistical methods—including hypothesis testing, confidence intervals, bootstrapping, and power analysis—to determine whether performance changes are true system improvements or stochastic noise. Build & Calibrate LLM-as-a-Judge Pipelines: Develop automated judging systems validated against human ground truth. Measure alignment using agreement metrics (Cohen’s kappa, correlation, precision/recall) and systematically detect judge failure modes such as position bias, verbosity bias, self-preference, and prompt sensitivity. Curate Benchmark Datasets & Rubrics: Define sampling strategies, detailed annotation guidelines, and scoring rubrics. Measure inter-annotator agreement and manage label noise to ensure benchmark integrity over time. Deep Error & Trajectory Analysis: Conduct hands‑on failure analysis on agent runs, cluster root causes into actionable error categories, and clearly communicate findings to both engineering teams and stakeholders. Drive Harness Scaffolding Iteration: Translate evaluation results directly into architectural improvements across agent scaffolding, prompt design, tool execution loops, context window compaction, retries, and safety guardrails. Grounding in Statistics & Experimental Design: Demonstrated expertise in hypothesis testing, bootstrapping, power analysis, and statistical significance within probabilistic machine learning systems. LLM-as-a-Judge Validation: Proven experience building, auditing, and validating LLM judge setups against human annotations, including tracking agreement metrics and mitigating judge biases. Evaluation Dataset Engineering: Strong track record designing evaluation datasets, crafting precise scoring rubrics, managing label noise, and measuring inter-annotator agreement. Evaluation of Non-Deterministic Multi-Step Systems: Deep comfort evaluating complex agent trajectories, tool execution sequences, latency, cost, and variance across repeated runs rather than relying solely on single-shot benchmarks. Metric Design & Integrity: Exceptional judgment in defining metrics tied to real-world outcomes, with a keen eye for detecting benchmark gaming, target drift, or shortcut learning. Rigor in Error Analysis: Ability to dissect complex execution logs, categorize failure modes, and synthesize clear, data-driven recommendations. Hands-On LLM Integration: Practical proficiency with LLM APIs, prompt engineering, structured outputs, function/tool calling, and retrieval systems in Python. Agent Architecture Awareness: Clear understanding of planning loops, tool orchestration, memory management, and multi-agent coordination, including their trade-offs and common failure modes. Harness & Scaffolding Contribution: Ability to write clean, maintainable Python code to iterate on harness components such as guardrails, retry logic, state handling, and context management. • Experience with agent and evaluation frameworks (e.g., LangChain, LangGraph, AutoGen, lm-evaluation-harness, Promptfoo, or Ragas)., • Exposure to running evaluation pipelines or agent workloads within secure, enclave, or Kubernetes environments. Benefits: Our benefits are designed to ensure our employees feel taken care of and are proud to be a part of the Valarian team. We are committed to consistently enhancing our benefit package, taking into account the overall well-being and needs of our teammates. Here are the key benefits accessible to all employees at Valarian Technologies: • Equity – because you have the right to own what you’re building, • A competitive salary – because we value your unique skills, • Employer pension contributions – because you deserve a secure future, • Private health insurance - because your health is important to us, • Hybrid work setup – because everyone has different needs, • Rewarding company retreats and meetups that respect your work/life balance – because we love getting to know each other! Our culture is built on inclusivity, compassion and flexibility – we want everyone to be empowered to achieve their goals at Valarian. The work we do is vital, but so are the connections that make it happen. We thrive on the shared energy, spontaneous conversations, and mutual trust built when we spend time together. We operate on a hybrid model, gathering in our London office 3 days a week to support one another and collaborate. We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses and identifying potential inconsistencies or verification signals in application materials based on available information. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us. Valarian Technologies Limited is an equal opportunity employer and welcomes applications from individuals regardless of race, colour, religion, sex, sexual orientation, gender, identity or expression, national origin, age, disability, genetic information, marital status, veteran, amnesty, or any other legally protected characteristic. We are committed to ensuring a fair and inclusive recruitment process and providing employment opportunities to all applicants. Decision recruitment, hiring, and employment are based solely on qualifications, skills, and experience relevant to the job requirements. #J-18808-Ljbffr

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Department: Client Sales Employment Type: Permanent - Full Time Location: London, UK Reporting To: CRO The Regional Sales VP for EMEA Emerging Countries hunts for new logo opportunities in markets that are on the cusp of utility sector transformation, where the absence of strong local competition creates attractive entry opportunities for Gentrack. These markets are characterised by regulatory change, smart meter rollouts, and the need for modern billing infrastructure. The role leverages Gentrack's Australian and UK track records as proof points and is expected to generate £1.5M+ ARR from Emerging Markets by FY28. • Market Selection & Entry:, • Maintain and refine the target market map for EMEA Emerging Countries., • Assess and prioritise opportunities based on market size, competitive landscape and deal replication potential., • Drive market entry in selected geographies in sequence., • Pipeline Development:, • Identify, qualify and pursue new logo opportunities in target emerging markets., • Build senior relationships with target prospects, leveraging Gentrack's track record., • Manage the full sales cycle from initial qualification to contract signature., • Deal Execution:, • Orchestrate CS&IT, Delivery and partner resources for strategic bids., • Apply MEDDPICC and the EMEA sales process rigorously., • Ensure deal economics are sound and margin-accretive from the first win., • Partnership & Ecosystem:, • Identify and engage local partners where needed to support market entry and delivery scalability., • Leverage existing partner relationships., • New business hunter with strong track record in emerging or developing markets, • Ability to navigate ambiguous, evolving market environments, • Executive engagement and win strategy skills, • Knowledge of Eastern European and/or selected MEA energy markets, • Financial and commercial structuring capability Multilingual capability an advantage (Turkish, Greek, or Eastern European language), • 7+ years in enterprise software or utility sector commercial roles, • At least 3 years in new logo hunting in emerging or non-UK markets, • Experience with utility billing, CIS or energy retail platforms preferred, • Existing network in Eastern European or MEA energy markets a strong plus, • Degree-level education; international experience essential We use AI to help our recruitment team review CVs and application responses against the requirements of the role. • Competitive salary, • Private medical insurance, • Life and income protection, • 24-days annual leave, • Enhanced parental leave, • Tailored learning and development opportunities, • Flexible working hours and remote-work opportunities To discover more about Gentrack and how we’re transforming energy and water utilities with innovative solutions, please visit our website and LinkedIn. #J-18808-Ljbffr

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