Tooling engineer jobs in United Kingdom

About Us SharkNinja is a global product design and technology company, with a diversified portfolio of 5-star rated lifestyle solutions that positively impact people’s lives in homes around the world. Powered by two trusted, global brands, Shark and Ninja , the company has a proven track record of bringing disruptive innovation to market, and developing one consumer product after another has allowed SharkNinja to enter multiple product categories, driving significant growth and market share gains. Headquartered in Needham, Massachusetts with more than 3,600+ associates, the company’s products are sold at key retailers, online and offline, and through distributors around the world . Innovators Wanted – Join Our Extraordinary Advanced Development Talent Community! At SharkNinja, we are always seeking world-class engineering talent eager to push the boundaries of product design innovation. Whether you are a technical leader, a complex problem solver, or an engineer driven by curiosity and hands-on experimentation, we want to hear from you! Our Advanced Development (Product Design Engineering & Front-End Innovation) teams thrive on tinkering —whether it’s conceptualizing, prototyping, or refining the next generation of consumer products. We embrace engineering rigor, rapid iteration, and cross-disciplinary collaboration to transform ambitious ideas into manufacturable, high-performance solutions. If you are passionate about hands-on engineering, systems thinking, and delivering best-in-class solutions, join us. Think beyond conventional boundaries, embrace technical challenges, and be part of a team that turns visionary concepts into reality . What You’ll Do Invent & Innovate: Develop and prototype new product concepts that redefine consumer expectations. Collaborate & Build: Work cross-functionally with engineering, design, user experience, and manufacturing teams to bring ideas to life. Create Scalable Solutions: Design new technologies that transition seamlessly from early-stage development to full-scale production. Shape the Future: Influence SharkNinja’s product roadmap with disruptive, consumer-driven ideas. Support the communication of ideas quickly and be able to drive a team effectively using a combination of sketching, CAD layouts, 3D models and working prototypes to evaluate potential solutions. Confidence in managing external providers of technology solution to reduce our time to market. Understand the importance of clear product definition during the design process but be able to appreciate the spark of inspiration. Be naturally curious and relentlessly driven to find better solutions to everyday problems. What You’ll Bring We are open to talent at all levels! Whether you have a few years of experience or a seasoned career in Advanced Development/Product Design Engineering , what matters most is your ability to innovate, collaborate, and execute. Ideal candidates will have: A passion for problem-solving, creative thinking, and technical excellence. The ideal candidate will have a degree-level technical qualification, ideally in Industrial Design, Mechanical Engineering or Product Design Engineering, with significant product design content. Extensive experience in an Industrial design/product design/innovation environment A track record of concept development, prototyping, and transitioning projects into production . Strong collaboration skills and the ability to work in a fast-paced, entrepreneurial environment . Proven track record of taking consumer concept ideas through selection process and into tooling and mass production. Strong leadership experience required with excellent communication skills and an inspirational leadership style. Extensive experience required in areas of High-Volume Plastic Injection Molding, Sheet Metal, Die Casting etc. About the Team: Endless Innovation: We don’t just create products; we revolutionize categories. Fast-Paced & Impactful: Work on meaningful projects with real-world impact. Growth Opportunities: Whether you're early in your career or a seasoned professional, we invest in talent development. A Culture of Curiosity: We encourage bold thinking and taking smart risks. If you're excited about the future of Advanced Development and want to be part of a company that never stops innovating, let’s connect! SharkNinja is always on the lookout for top-tier AD talent to help shape the future. Our Culture At SharkNinja, we don’t just raise the bar—we push past it every single day. Our Outrageously Extraordinary mindset drives us to tackle the impossible, push boundaries, and deliver results that others only dream of. If you thrive on breaking out of your swim lane, you’ll be right at home. What We Offer We offer competitive health insurance, retirement plans, paid time off, employee stock purchase options, wellness programs, SharkNinja product discounts, and more. We empower your personal and professional growth with high impact Learning Programs featuring bold voices redefining what’s possible. When you join, you’re not just part of a company—you’re part of an outrageously extraordinary community. To gether, we won’t just launch products— we’ll disrupt entire markets. At SharkNinja, Diversity, Equity, and Inclusion are vital to our global success. Valuing each unique voice and blending all of our diverse skills strengthens SharkNinja’s innovation every day. We support ALL associates in bringing their authentic selves to work, making an impact, and having the opportunity for career acceleration. With help from our leadership, associates, and our community, we aim to have equity be a key component of the SharkNinja DNA. Learn more about us: Life At SharkNinja Outrageously Extraordinary SharkNinja Candidate Privacy Notice For candidates based in all regions , please refer to this Candidate Privacy Notice . For candidates based in China , please refer to this Candidate Privacy Notice . For candidates based in Vietnam , please refer to this Candidate Privacy Notice . We do not discriminate on the basis of race, religion, color, national origin, sex, gender, gender expression, sexual orientation, age, marital status, veteran status, disability, or any other class protected by legislation, and local law. SharkNinja will consider reasonable accommodations consistent with legislation, and local law. If you require a reasonable accommodation to participate in the job application or interview process, please contact SharkNinja People & Culture at

Leading Investment Bank - Software Developer - Finance Technology We’re hiring a Software Developer to join a Greenfield, next-generation Regulatory Technology platform within a leading global investment bank. This role sits within the Finance Technology – Regulatory Reporting organisation, focused on building and evolving a critical regulatory reporting platform used globally. While the platform is built around Axiom, prior Axiom experience is not required. We’re looking for strong engineers who are keen to learn a new, specialist technology and grow their skillset within a complex, high-impact environment. Full training on Axiom will be provided. You’ll work closely with international engineering teams, contributing to platform development, automation, and infrastructure, while helping drive modern engineering practices across a mission-critical system. What You’ll Do • Build and support a Greenfield, next-generation regulatory reporting platform, • Develop and maintain backend services, tooling, and automation supporting regulatory processing, • Implement platform upgrades, releases, and security patches across global environments, • Coordinate testing cycles with engineering and delivery teams, • Expand CI/CD, test-driven development, and release automation practices, • Contribute to architectural decisions, standardisation, and platform design, • Support a high-availability, business-critical regulatory reporting system Skills & Experience • 2–5 years’ experience as a Software Developer or Engineer, • Strong Python development skills, • Solid Linux / Shell scripting experience, • Database development experience (Sybase or other relational databases), • Understanding of application infrastructure and system architecture, • Experience designing and building web-based applications, • Background working in large-scale, enterprise environments Nice to Have • Interest in regulatory systems, financial platforms, or enterprise technology, • Exposure to CI/CD tooling (e.g. Jenkins) and Agile delivery methodologies, • Strong SQL and ETL knowledge, • Experience with database performance analysis and tuning, • Axiom experience is a plus, but not essential – full training provided This is an excellent opportunity for engineers looking to learn a niche, in-demand technology, work on a next-generation platform, and develop their career within one of the world’s leading investment banks.

JMC Aviation are working with an airline based in London, looking to recruit a new B1 Licensed Engineer to join their team. This client is an aircraft maintenance subsidiary which provides support services such as fleet maintenance, cabin interior conversions and general ramp maintenance work for both their own fleet and other airlines. This vacancy is available due to business turnovers. This is a Permanent Position based in London. 5/5/4 mixed shift pattern, working 12 hour shifts. Salary and Benefits • Competitive salary, • Sign on bonus, • 34 days annual leave entitlement inclusive of bank holidays, • Staff travel benefits, • Private Medical Insurance!, • 6% employer pension contribution, • Company sick pay, • Salary sacrifice schemes, • Electric vehicle scheme, • Cycle to work scheme, • Health cash plan, • Gym and retail discounts, • Employee assistance programme, • Referral scheme The Role The primary purpose of this role is to carry out line maintenance on company aircraft including scheduled/unscheduled maintenance and defect rectification in accordance with company, manufacturer and CAA procedures and legislation. Other Duties Involve • Carry out scheduled/unscheduled maintenance and defect rectification on company aircraft, • Maintain the highest airworthiness, quality, safety and performance standards to ensure all company and legal requirements appertaining to aircraft maintenance and inspection are complied with, • Exercise fully the privileges of the company authorisations held, • Support company charters and the recovery of AOG and casualty aircraft as required across the company network, • Work to the required company and health & safety standards, • Carry out or arrange for the maintenance and/or repair of company tooling, equipment and vehicles, • Build and maintain good relationships with key stakeholders, • Complete and maintain compliance with all company training requirements required to carry out the role, • Support Supervisors and Managers with any required projects In order to be successful in this role the B1 Licensed Engineer will need to demonstrate the following skills and attributes • UK CAA Part 66 B1 licence with at least one type rating held (type courses available), • Experience with both scheduled and unscheduled line maintenance, • Ability to hold an airport restricted pass and hold an airside driving permit If you think this is the role for you and you have the necessary skills and attributes, please apply today or contact JMC Aviation for more details. Please note that due to the high level of applicants we will only be contacting shortlisted candidates regarding this role. For this opportunity JMC Aviation Ltd is acting as an employment agency. In applying for the above position and sharing your personal data with JMC Aviation Limited, you acknowledge that your personal data will be processed in accordance with our Privacy Policy (found on our website).

Senior Backend Engineer (NodeJs/Typescript) Salary: £80,000 - £90,000 Location: London/Hybrid At Healthera, we’re transforming how people access medicines and healthcare making it simpler, faster and more connected. As one of the UK’s fastest growing health tech companies, we partner with over 1,700 pharmacies and support more than a million patients through our market leading digital pharmacy platform, enabling seamless prescriptions, medicine delivery and access to clinical services all powered by innovative, patient centred technology. Role Overview We’re hiring a Senior Platform & Backend Engineer (NodeJs/Typescript) to own and evolve our cloud platform, setting standards and best practices across backend services, frontend static and dynamic deployments, and the GCP infrastructure that underpins them. This role is primarily focused on platform engineering, while remaining deeply hands-on with backend engineering, with responsibilities evenly split between the two. You’ll act as a force multiplier for engineering teams enabling fast, self-service access to infrastructure, CI/CD pipelines and developer tooling, while embedding security-by-default, reliability and scalability into the platform. You’ll modernise legacy systems, build new backend capabilities, and make pragmatic engineering decisions that balance delivery speed, quality and long-term maintainability. Core Responsibilities Platform Engineering • Act as a platform enabler, reducing friction and accelerating delivery for product teams, • Provide secure, self-service infrastructure on GCP, managed exclusively via Terraform, • Design and maintain CI/CD pipelines that enable fast, safe, and repeatable deployments, • Embed security and compliance by default through DevSecOps practices and platform guardrails, • Implement observability as a standard: metrics, logs, traces, alerts, SLIs/SLOs, • Define and own cost and observability standards, including budgets, spend alerts, unit economics, SLIs/SLOs, and operational dashboards, • Own, maintain, and evolve backend services across legacy and greenfield systems, • Design and implement scalable backend architectures using Node.js, TypeScript, and NestJS, • Build and operate RESTful APIs and event-driven systems (queues/topics), • Improve performance, resilience, and data models across MongoDB, ElasticSearch, and relational databases, • Implement backend security best practices: authentication, authorization, data protection, and GDPR compliance, • Contribute to architectural decisions and long-term backend strategy Why Join Healthera You’ll be a key technical enabler, helping teams move faster by giving them safe, reliable ways to build and ship. You’ll focus on creating solid foundations, so engineers don’t have to think about infrastructure, security, or costs every time they deliver. Your work will directly support a healthcare platform used by thousands of patients every day.

Klyk Founding (Senior) Software Engineer 🌍 About Klyk At Klyk, we’re on a mission to eliminate waste from the business technology ecosystem. As a certified B Corp, we help modern companies adopt a Circular IT model — reducing cost, carbon emissions, and operational complexity across their entire device lifecycle. We provide: • IT asset management, • Sustainable hardware procurement, • IT support services Now, we’re building the next evolution of Klyk: a modern platform that brings together IT, hardware, cybersecurity, automation, and AI — all in one place. 🎯 The Role We’re looking for a Founding (Senior) Software Engineer to build and shape the Klyk platform from zero-to-one. This is a foundational position with significant autonomy, where you’ll work directly with the co-founders to design and ship core systems that power the future of our IT, hardware, and cyber offerings. As an early technical hire, you will influence everything from architecture and tooling to engineering culture and long-term product direction. Expect variety, ownership, and the opportunity to help define how a modern, sustainable IT platform should work. This role suits someone who thrives in early-stage environments, enjoys solving ambiguous problems, and wants to work on meaningful technology that has both business and environmental impact. Location: Our office in London, Acton Start: ASAP 🛠 What You’ll Do 🧱 Build the Core Platform Design and implement foundational features across our internal and customer-facing tools. Build systems that improve operational efficiency, elevate customer experience, and support our sustainability mission. Help define our technical strategy, architecture, and best practices. 🤝 Partner Across Teams Work closely with Support, Ops, Cyber, Sales, and Leadership to understand pain points and opportunities. Translate real business needs into simple, scalable products and internal workflows. Contribute to a unified, forward-looking platform that connects all parts of the business. 🚀 Drive Product & Engineering Direction Help shape the product roadmap with a builder’s mindset. Own projects end-to-end — from idea to shipped feature. Bring creativity, technical insight, and initiative to everything we build. 🔧 Improve Tooling & Automation Identify inefficiencies in our internal systems and design better ways of working. Evaluate and integrate third-party tools to enhance performance and scale. Use AI and automation thoughtfully to streamline operations and support the business. ✅ You May Be a Fit If You… Strong programming skills with 5+ years of experience A strong track record of solving difficult problems in either an academic or industrial setting A strong track record displaying the ability to manage engineering workflows (e.g. building robust and scalable products and working with customers, etc.) Experience working with cloud infrastructure providers and database technologies (e.g. SQL/no-SQL) Ability to self-organise and work independently Based in, or willing to relocate to London. Are excited by zero-to-one building and high ownership. Can work across the stack and learn quickly in unfamiliar areas. Enjoy turning loosely defined problems into clear, practical solutions. Communicate clearly in writing and async, and value collaboration. Care about sustainability and want your work to have real-world impact. Are comfortable in fast-moving, unstructured environments. Nice-to-haves (none required) Experience in SaaS platforms, IT systems, automation, or cybersecurity. Familiarity with frameworks such as React/Next.js, Node.js, TypeScript. Experience in device lifecycle management or IT support. 💚 Why Join Klyk? 🌱 Purpose-driven work Make a measurable impact on reducing e-waste and transforming how businesses use technology. 🚀 Build something meaningful Help create the platform that powers a new generation of sustainable, automated IT services. 🎯 Autonomy and trust Work directly with founders and influence decisions from day one. 💡 Experienced Co-Founder team Experienced Founder Team across Software Development, IT & Cyber & Business scaling 🧠 Continuous learning Get exposure to product strategy, operations, sales, cyber, AI, and the realities of building a fast-growing business. 🌍 Values-led culture As a B Corp, we prioritise flexibility, fairness, environmental impact, and long-term thinking. ❌ Why You Shouldn’t Apply You need rigid structure and fixed specifications You want a large team around you from day one You prefer maintaining systems over building new ones You’re not comfortable owning outcomes end-to-end If the idea of building something new, scrappy, and impactful excites you — not scares you — then you’ll thrive at Klyk. 📬 How to Apply Please email with your answers to the following questions: -⁠ ⁠Describe the largest or most complex system you personally designed and saw through to production. What key decision did you make regarding technology (database, language, cloud service) that prevented a major scaling crisis later on? -⁠ ⁠Summarise a time when you had to ship a critical feature or project under extreme time pressure (e.g., 48 hours). What essential piece of infrastructure or testing did you intentionally cut or postpone to meet the deadline, and how did you mitigate the risk? -⁠ ⁠Describe a significant contribution you made that was not writing feature code. What measurable benefit did this contribution have on the engineering team's efficiency?

Support & DevOps Engineer A global fintech are seeking a proactive and technically adept Support & DevOps Engineer to maintain and enhance our production trading environment. This unique hybrid role blends BAU support responsibilities with advanced DevOps engineering tasks, ensuring robust operational efficiency and technical excellence. The successful candidate will provide real-time operational support, build next-generation reconciliation tools for trade consistency across digital and traditional financial assets, and implement comprehensive monitoring and tooling solutions leveraging modern technologies. Primary Responsibilities: • Provide support for production environment issues, promptly diagnosing and resolving problems, both offline and in real-time., • Communicate effectively with internal customers and senior software engineers to resolve and escalate issues clearly and efficiently., • Design, develop, and maintain advanced reconciliation applications to ensure consistency across digital and traditional finance trade-capture processes., • Develop and enhance monitoring dashboards and alerts using DataDog, Grafana, or similar technologies to proactively identify and address production issues, including end-to-end system latency., • Build tooling and monitoring solutions to facilitate comprehensive post-release validation, ensuring software functions correctly following deployments., • Participate in release management processes and uphold best practices following Agile methodologies., • Be the Incident coordinator for operational incidents on the core engineering production platform. This includes all technical internal communications, ensuring processes are followed and all post-incident followup and analysis. Qualifications and Skills: • 5+ years of combined experience in Support, DevOps, SRE, or related technical roles, ideally within financial technology environments., • Strong technical expertise with Python, Unix, PostgreSQL, and familiarity with Kafka, CockroachDB, FastAPI, GraphQL, Snowflake, Redis, and QuestDB or equivalent technologies., • Proven experience designing and implementing monitoring and alerting tools (DataDog, Grafana)., • Solid experience with AWS Cloud Infrastructure and related operational processes., • Deep understanding of and experience troubleshooting REST APIs and WebSockets., • Exposure to crypto, blockchain (DLT), trading, and risk management systems is highly beneficial., • Familiarity with financial services infrastructure standards and processes (e.g., ITIL) within a DevOps or Site Reliability Engineering (SRE) context., • Demonstrated experience managing multiple priorities effectively and operating efficiently in ambiguous environments., • Excellent documentation and knowledge-sharing skills, coupled with a passion for continuous improvement in documentation strategies and tooling., • Experience with incident response protocols and comfort navigating high-pressure situations., • Proficiency with development workflows and tools (JIRA, Confluence, GitHub, Scrum methodologies)., • Strong written and spoken English communication skills; ability to clearly articulate technical concepts to varied audiences.

Junior DevOps Engineer | On-site in London | AWS, Kubernetes, Terraform, Python | £70K + Benefits Overview A fast-growing enterprise SaaS company is hiring Junior DevOps Engineers to support the deployment of a cloud-based platform used by large, global organisations. The role focuses on delivering secure, automated deployments into customer cloud environments while improving internal DevOps tooling and infrastructure. Core Technical Requirements • Experience with customer-facing cloud deployments, • Strong understanding of modern cloud applications and infrastructure, • Cloud platforms: AWS and Azure, • Kubernetes, Terraform, Python, • Solid software engineering background with ability to code, • Strong computer science fundamentals Role Details & Requirements: • 5 Days p/ week in London, • Paying £70K, • Ideally looking for 1-3 years experience, • Must've been to a Russell Group (or Ivy League) University Junior DevOps Engineer | On-site in London | AWS, Kubernetes, Terraform, Python | £70K + Benefits

Lead GenAI Engineer - Generative AI 💼 Hybrid London (1–2 days/week onsite) 💰 Up to £140k + Equity + Benefits We’re hiring a Lead GenAI Engineer within a high-growth fintech/data intelligence scaleup. This is a hybrid role that combines hands-on technical expertise with line management and team development. You will mentor a young, high-performing engineering group while driving the architecture, delivery, and evolution of our GenAI-powered products. You’ll join a highly talented AI organisation (reporting into the Senior ML Manager) and work closely with product, backend, and frontend teams to ship impactful, user-facing AI features. Key Responsibilities Leadership & Team Development • Manage and grow a small team of AI Engineers (starting with 2–3, scaling to ~5)., • Act as a player–coach, remaining hands-on while mentoring, unblocking, and developing engineers., • Lead architecture and development of LLM-powered and agentic applications, including RAG systems, chat/workflow agents, and domain-specific AI services., • Drive technical direction with sound judgement and pragmatic decision-making., • Build and deploy production-grade GenAI systems end to end: prototyping → integration → deployment → monitoring., • Work closely with backend, frontend, and product engineering teams to integrate GenAI capabilities. Key Requirements • Demonstrated line management experience leading small teams (2–5 engineers)., • LLMs & transformer-based models, • Agentic frameworks (e.g., LangChain, LangGraph), • Retrieval-Augmented Generation (RAG), • Python, • Building or integrating LLMs into products or workflows, • Working with GenAI frameworks and tooling, • Designing or optimising prompt pipelines, • Deploying or supporting GenAI features in production, • Comfortable balancing leadership responsibilities with hands-on engineering early on., • Experience building agentic workflows, multi-agent systems, or autonomous LLM tools., • Fintech domain exposure (not essential). This position do not provide visa sponsorship and require existing right to work in the UK. Please note: Due to the high volume of applications we are not always able to respond to all applicants, if you have not had a response within 7 days of your application it is likely it has been unsuccessful. If your skillset matched, please apply within.

Implementation Engineer – FinTech / Data / SaaS Location: London (Hybrid – up to 3 days remote) Visa Sponsorship: Not Available A fast-growing B2B SaaS company is building a next-generation payments and data platform serving enterprise clients across insurance and financial services. The business is scaling rapidly and is looking for an Implementation Engineer to lead client onboarding, data integration, and end-to-end delivery of complex technical solutions. This is a hybrid role combining client-facing consulting, data engineering, and solution design. You’ll work directly with external clients to deeply understand their data, operational workflows, and payment processes, translating that into scalable, production-grade solutions. The Role You’ll own onboarding projects from discovery through go-live, building ingestion pipelines, mapping logic, and reconciliation workflows tailored to each client. Working closely with Product and Engineering teams, you’ll continuously improve the onboarding experience and platform capabilities. This role suits someone who enjoys solving messy data problems, working directly with customers, and having real ownership in a scaling startup environment. What You’ll Be Doing: Client Discovery and Requirements • Lead technical discovery sessions to map data sources, workflows, and reconciliation processes., • Uncover edge cases, undocumented logic, and operational nuances., • Translate business and operational needs into clear technical specifications. Data Analysis and Integration • Analyse complex datasets (Excel, CSV, PDFs, data feeds) and identify required transformations., • Design and implement data mappings, validation rules, and ingestion workflows., • Transform inconsistent or messy data into clean, structured formats aligned with internal schemas. Solution Design and Delivery • Architect and configure client-specific ingestion, matching, and reconciliation rules., • Build proof-of-concept integrations to demonstrate platform value early., • Execute full implementation cycles including testing, troubleshooting, and documentation. Client Communication and Success • Act as the primary technical point of contact during onboarding., • Communicate clearly with both technical and non-technical stakeholders., • Build strong client relationships through consistent delivery and structured solutions. Platform and Process Improvement • Identify reusable onboarding patterns and contribute to templates and tooling., • Collaborate with Product and Engineering to improve platform capabilities., • Help standardise and scale onboarding processes. What We’re Looking For: Core Skills • Strong analytical mindset with the ability to understand complex workflows., • Experience working with CSV, Excel, SQL databases, APIs, and data pipelines., • Strong SQL skills and experience with scripting languages such as Python., • Ability to diagnose and resolve data quality, transformation, and mapping issues., • Comfortable leading client discussions and working through ambiguity. Nice to Have • Background in fintech, insurance, payments, or reconciliation systems., • Experience in implementation engineering, solutions engineering, or technical consulting., • Exposure to cloud platforms, ETL pipelines, matching logic, or financial data models. Personal Attributes • High ownership and accountability., • Clear, confident communicator., • Comfortable in fast-moving startup environments., • Curious problem solver with strong attention to detail. Benefits • Hybrid working model (central London office), • Private healthcare, • Regular team lunches and international offsites, • High-spec technical equipment, • 22 days annual leave plus bank holidays Interview Process • Introductory call, • Technical interview, • Onsite workshop and team collaboration session

About Us We are a VC-backed startup focused on hyper-personalisation, currently in stealth. Inspired by the latest in recommender systems, we leverage transformers and graph learning alongside decision-making models to build the most engaging customer experiences for in-store retail. Our mission is to change retail forever through hyper-personalised experiences that are both simple and beautiful. About the Job – Machine Learning Engineer We are looking for a Machine Learning Engineer with strong software engineering fundamentals to join our team of domain experts and researchers. You will be responsible for building robust, scalable ML systems that bring our foundation models for retail from prototype to production. Key Responsibilities • Design and build production-grade ML infrastructure, including training pipelines, model serving, and monitoring systems., • Collaborate with research engineers to translate experimental models into reliable, maintainable software., • Optimise ML systems for performance, scalability, and cost-efficiency in cloud environments (distributed clusters, GPUs)., • Month 1: Onboard to existing ML codebase and infrastructure; identify technical debt and reliability gaps; ship incremental improvements to model serving latency or pipeline robustness., • Month 3: Own and deliver a major infrastructure component (e.g., feature store, training orchestration, or model registry); improve system observability with logging, metrics, and alerting., • 3–5+ years building and maintaining ML systems in production environments, • BSc or MSc in Computer Science, Software Engineering, or a related field, • Strong software engineering skills: clean code, testing, debugging, version control, and system design, • Proficiency in Python with experience in ML frameworks (PyTorch, TensorFlow, or JAX), • Hands-on experience with cloud platforms (AWS, GCP, or Azure) and containerisation (Docker, Kubernetes), • Experience with MLOps tooling (MLflow, Kubeflow, Weights & Biases, or similar), • Building data pipelines (real-time or batch) using tools like Apache Spark, Kafka, Airflow, or dbt, • Familiarity with recommender systems, transformers, or graph neural networks, • Opportunity to build technology that will transform millions of shopping experiences., • Real ownership and impact in shaping product and company direction., • A dynamic, collaborative work environment with cutting-edge ML challenges., • Competitive compensation and equity in a rapidly growing company.

🚀 Founding Lead Engineer (CTO-Track) | Early-Stage AI Startup | UK - up to £150,000 We’re supporting a well-funded early-stage AI startup that’s entering its next phase of growth and is now looking for a Founding Lead Engineer to take ownership of the technical function. This role is ideal for a hands-on senior engineer who wants real influence, enjoys building product, and is ready to step into technical leadership — with a clear path toward a CTO-level role. What you’ll be doing • Owning technical direction across a small but strong engineering team, • Remaining hands-on in code (this is a player-coach role, not a pure management position), • Partnering closely with the founder on product decisions and technical strategy, • Helping scale the team post-fundraise while keeping things lean and high-impact, • Representing technical leadership as the company prepares for its next funding round The profile we’re looking for • Senior / Lead Engineer experience in startup or scale-up environments, • Strong backend background (Elixir experience is ideal, but leadership + product mindset matter more than language purity), • Comfortable overseeing how frontend and backend work together, • Has seen a team or product scale, even if they weren’t the original CTO, • Product-focused — challenges what to build, not just how to build it, • Embraces modern tooling and AI-assisted development, • Low-ego, pragmatic, and enjoys ownership What’s on offer • Founding-level impact with real ownership and influence, • Competitive salary today with a clear uplift post-fundraise (up to ~£150k), • Meaningful equity, • Fast, human interview process (no take-home tests or heavy tech exercises), • One day per week in London (UK-based candidates preferred, flexible location otherwise) If you’re someone who wants genuine ownership over a product, a team, and a technical direction — and enjoys operating at an early-stage level — this is a rare opportunity. 📩 If this sounds like you (or someone you know), feel free to reach out directly.

Role: Senior Product Engineer Location: London - Hybrid (1-2 days) Compensation: Up to £140,000 + equity We’re working with a mission-driven technology company using AI to solve some of society’s toughest challenges. As a Senior Product Engineer, you’ll take ownership of one of their core AI products, leading a small, talented engineering team while staying hands-on with code. You’ll shape architecture, mentor engineers, and work closely with product and design teams to deliver meaningful, high-impact features used daily by people improving lives across the UK. What you’ll do • Lead a product engineering team building AI-powered tools that make a measurable social impact., • Spend around 60% of your time coding, across backend, frontend, and infrastructure., • Design scalable systems and technical architecture for rapidly evolving AI products., • Collaborate with cross-functional teams — product, design, data, and AI — to ship impactful features., • Explore and integrate the latest advancements in large language models and generative AI., • Help build a strong, values-led engineering culture grounded in curiosity, pragmatism, and purpose. You should have • Experience leading or mentoring software engineers., • Solid background across the full stack (Ruby, Go, Python, Typescript), • Strong grasp of system design, data structures, and scalable architectures., • Familiarity with cloud platforms (e.g. GCP, AWS) and AI tooling., • A product-focused mindset and passion for solving real-world problems through technology. Why it’s exciting • Work at the intersection of AI innovation and social good, building tools that directly improve people’s lives., • Shape the future of rapidly growing AI products used by thousands every day., • Collaborate with exceptional engineers, designers, and product leaders who care deeply about purpose and performance., • High autonomy, real ownership, and the opportunity to lead engineering in a mission-driven environment. f you’re excited by the idea of using world-class engineering and AI to solve real social challenges — building products that help people on the frontlines change lives every day — we’d love to hear from you.

The Role We are helping to hire a Senior Software Engineer to strengthen the core foundation of our agentic data analytics platform, ensuring reliability, scalability, and performance as we move from MVP to enterprise scale. This is a core platform role with real ownership. You will work on data integrations, platform execution, and the systems that power AI-driven analytics. What You Will Be Doing • Building core data integrations with common SaaS platforms, • Designing data pipelines that ingest provider APIs into our analytics datastore, • Improving the agent platform and executor with better error handling, observability, and speed, • Making LLM interactions more efficient through prompts, snippets, and tooling, • Improving internal developer experience and platform tooling, • Helping take an early MVP into a production-grade platform Why Join • Early, high-impact role in an AI-native company, • Direct influence on platform architecture and technical direction, • Opportunity to work with an experienced founding team, • Build technology that fundamentally changes how teams use data The Stack • Go (Railway), • Postgres, • Terraform (Infrastructure as Code) What We Are Looking For • 3+ years of Go experience, • Deep understanding of design patterns and system architecture, • Experience building scalable, performant platforms, • Strong grasp of event-driven systems and concurrency, • Solid database and API design experience, ideally with Postgres, • Understanding of good security practices, • Ability to clearly communicate technical trade-offs, • Familiarity with the modern AI tooling landscape, • Some cloud infrastructure experience including Terraform Nice to Have • Zero-to-one product experience, including OSS or side projects, • Data engineering experience such as pipelines and analytics, • Experience integrating LLMs, including prompt design and understanding model capabilities, • Deeper cloud experience, especially with GCP, • Experience with Encore, though this is easy to pick up Ways of Working • Ownership mindset with comfort taking ideas from rough outline to implementation, • Execution first approach where speed matters, balanced with pragmatism, • Iterative development focused on shipping, learning, and improving, • First-principles thinking rather than cargo-cult engineering, • Ego-less culture with direct, constructive feedback, • Comfort working asynchronously and learning independently, • AI-native approach using tools like Cursor or Claude Code to move faster

My client is seeking an experienced Cloud Security Engineer to help design, implement, and operate security controls across our cloud environments, with a strong emphasis on Google Cloud Platform (GCP). This role is hands-on and technical, focused on automation, identity management, and maintaining a strong security posture at scale. Key Requirements • Cloud Platforms: Deep expertise in Google Cloud Platform (GCP); exposure to AWS and Azure is a plus., • Infrastructure as Code: Strong experience using Terraform to automate and enforce cloud infrastructure and security guardrails., • Programming & Scripting: Proficiency in Python (primary) and Bash for automation, tooling, and security workflows., • Security Controls: Design, implement, and manage security controls across deployed cloud systems., • Security Posture Management: Continuously assess cloud infrastructure, perform security reviews, and improve overall security posture., • Identity & Access Management: Deep hands-on expertise in IAM, including organizational policies, security controls, and workload identity in GCP. Apply now for immediate consideration.

Position: Full Stack Engineer Location: London, 4 to 5 days per week on site Compensation: Competitive salary and equity, depending on experience Reports to: Head of Engineering About Navys Navys is a venture backed legal technology company building enterprise workflow software for private capital markets. The platform replaces manual, email driven legal processes with a structured system that enables funds lawyers, GPs and LPs to execute complex transactions more efficiently. Navys is focused on real legal workflows, not generic AI tools or document summarisation, and is designed to support production grade, enterprise use cases. Navys is building core infrastructure for how funds legal work is done, with a strong emphasis on execution, clarity and real world impact. Role Summary Navys is seeking an ambitious Full Stack Engineer to join the team on a full time basis. This is a hands on engineering role focused on building and shipping core platform functionality across the full stack. You will play a foundational role in building core platform components, scaling infrastructure, and collaborating closely with engineering, product and legal teams to bring a category defining product to life. This is not a narrow or isolated engineering role. It requires ownership, comfort with ambiguity, and the ability to take responsibility for features from early design through to production. Responsibilities Product Delivery and Execution • Design, build and ship full stack features from backend services and APIs in Python through to modern, performant user interfaces in TypeScript using React, • Translate complex legal and operational requirements into clear, intuitive product functionality, • Take ownership of features from concept through to production release Platform and Infrastructure • Develop and maintain cloud infrastructure with a strong focus on Azure, • Ensure the full stack from database to frontend is secure, maintainable and scalable, • Contribute to the reliability and performance of the platform as usage grows Engineering Contribution and Collaboration • Influence technical architecture decisions and help define engineering best practices as the team grows, • Work closely with the Head of Engineering and Product to align technical execution with product priorities, • Collaborate effectively across engineering, product and legal domain experts Candidate Profile Essential Requirements • Fluent in Python and strong in TypeScript, with both used in production systems, • Solid experience building scalable APIs and backend services, • Experience building modern single page applications, • Familiarity with at least one major frontend framework, with React preferred and Vue acceptable, • Deep understanding of at least one major cloud platform, with Azure preferred and AWS acceptable, • Knowledge of relational databases and data modelling, • Strong problem solving and analytical skills, • Strong communication and collaboration abilities, • Comfortable operating in a fast paced, early stage start up environment Desirable Requirements • Experience with infrastructure as code such as Terraform or Bicep, • Familiarity with Azure services including Azure Functions, Azure SQL, Key Vault and Blob Storage, • Exposure to AI or LLM based tooling such as OpenAI, Azure AI or LangChain, • Experience in legal tech, fintech or another highly regulated domain What Navys Offers • Competitive salary plus meaningful equity at an early stage, • A foundational engineering role with real ownership and impact, • Direct influence on how the platform is built and scaled, • Opportunity to take on increasing responsibility as the engineering team grows Equal Opportunity Employer We are committed to fostering a diverse and inclusive workplace. As an equal opportunity employer, we do not discriminate on the basis of age, disability, sex, race, religion or belief, gender reassignment, marriage or civil partnership, pregnancy or maternity, or sexual orientation. All qualified applicants will receive consideration based on individual merit and business needs.

Founding Engineer – Full-Stack / AI / Early-Stage Startup Location: London (Hybrid 3 days onsite) Employment Type: Permanent Salary: Competitive (DOE) A fast-growing early-stage technology startup is building AI-driven products that power data-heavy workflows across digital platforms. The team operates with high ownership, fast iteration cycles, and a strong engineering culture focused on shipping meaningful features into production. They are now hiring a Founding Engineer to take end-to-end ownership of features across the full stack, contribute to AI-powered workflows, and help shape the technical architecture as the platform scales. This role suits someone who enjoys autonomy, moving quickly, and working across product, engineering, and experimentation in a startup environment. The Role You’ll design and implement production-grade features from initial concepts and designs through to deployment. Working across backend and frontend systems, you’ll help build intelligent workflows using modern AI tooling, contribute to cloud infrastructure and CI/CD pipelines, and experiment with emerging technologies in data engineering and machine learning. You’ll have meaningful influence over architecture, tooling, and product direction while operating in a highly collaborative, early-stage team. What You’ll Be Doing Product Architecture and Delivery • Translate project briefs and product designs into technical architecture and implementation plans., • Own features end-to-end across backend and frontend through to production release., • Contribute to system design decisions as the platform scales. AI and Intelligent Workflows • Build AI-driven features including agent-based workflows and embedding-driven matching systems., • Experiment with LLM-powered tools and apply them to real production use cases., • Design and optimise vector search and embedding pipelines to power semantic search, recommendation, and Retrieval-Augmented Generation (RAG) systems., • Architect and implement agentic AI systems capable of planning, reasoning, tool use, and autonomous task execution., • Explore new approaches in automation, search, and data enrichment. Deployment and Engineering Excellence • Improve and maintain CI/CD pipelines to enable fast, reliable releases., • Contribute to cloud deployments and operational stability., • Promote engineering best practices across testing, monitoring, and code quality. Experimentation and Innovation • Run technical experiments in data engineering, infrastructure, and AI., • Prototype and validate new technologies before moving them into production., • Continuously improve developer experience and delivery velocity. Ownership and Collaboration • Operate across the full technical stack in a high-autonomy environment., • Collaborate closely with product and business stakeholders., • Take responsibility for delivery quality and system performance. Core Experience • 2–3 years of hands-on engineering experience or equivalent project-based experience demonstrating ownership and impact., • Strong commercial experience with TypeScript and Node.js., • Experience delivering production features across backend and frontend systems. Mindset and Attributes • Comfortable operating in ambiguous, fast-moving environments., • Highly organised, proactive, and delivery focused., • Strong problem-solving skills and appetite for learning., • Excited about applying AI and LLM-powered tools to real-world workflows., • Thrives with autonomy and responsibility. Bonus Experience • Exposure to AWS serverless or event-driven architectures., • Mobile development experience (e.g., Flutter). Benefits • Flexible hybrid working model, • Generous Equity, • High ownership and autonomy, • Opportunity to influence architecture and product direction, • Fast learning environment with exposure to AI and modern cloud tooling, • Competitive compensation and early-stage growth opportunity Interview Process • Short introductory call, • In-person technical challenge and interview, • Culture and values interview

Senior Software Engineer Full Stack - Ruby on Rails, React Up to £120k DOE Fully Remote - must be UK based A fast-growing sports tech company building high-performance, data-driven products for a rapidly expanding global audience is searching for a Senior Full Stack Engineer. This is a pivotal role for an experienced engineer who thrives on shaping architecture, driving technical direction, and still remaining hands-on in the codebase. As a technical leader within a cross-functional Product Team, you’ll influence the long-term engineering strategy, guide architectural decisions, and ensure the platform scales reliably as our user base grows. You’ll act as a role model for engineering excellence - mentoring others, elevating standards, and collaborating closely with Product, Design, and Customer Success to build tools our customers truly value. Tech Stack: Ruby on Rails, React, React Native, GraphQL What You’ll Be Leading & Doing • Drive architectural design, long-term technical vision, and scalable system patterns, • Lead complex fullstack development across Rails and React/React Native, • Own technical quality - setting engineering standards, reviewing code, and ensuring maintainability, • Guide the team through key scaling challenges across performance, reliability, and modularity, • Mentor and coach engineers, fostering a culture of learning and high performance, • Work closely with stakeholders and users to translate real-world needs into elegant, robust solutions, • Influence and improve engineering practices, tooling, CI/CD, and operational excellence, • Remain hands-on, contributing significant code while unblocking and supporting the team What We’re Looking For • Extensive experience with Ruby on Rails or similar backend frameworks at scale, • Strong expertise with React and/or React Native, • Experience designing scalable architectures, APIs, and distributed systems, • GraphQL knowledge – highly beneficial, • Excellent communication and leadership skills; able to influence without ego, • Proven ability to guide teams, mentor others, and drive engineering quality, • Someone proactive, independent, and comfortable making high-impact technical decisions, • Thrives in a fast-paced, product-driven environment and enjoys working closely with customers We’re proud to be an equal opportunities employer and encourage applications from all backgrounds.

Senior Unity Engineer - Sports Interactive - Hybrid, London/Remote Possible by Exception We’re the exclusive recruitment partner for Sports Interactive, the home of Football Manager and a subsidiary of SEGA, and we’re looking for a Senior Unity Engineer to join the team! Founded in 1994, Sports Interactive became a wholly owned subsidiary of SEGA Europe in 2006. Based at the Here East technology hub in Stratford, East London, the SI team continues to expand as we bring our titles to an ever-growing audience across an increasing variety of platforms. To support our growth, we welcome the opportunity to connect with passionate people with the drive to match our ambitions and initiative to realise your individual potential. Position Overview We are seeking a highly skilled and experienced Senior Software Engineer to join our development team. You bring extensive expertise in C# and Unity, with a strong ability to architect and implement efficient, maintainable systems. This role involves architecting and implementing scalable and re-usable systems using C# and Unity across multiple areas of the game, including — but not limited to — addressables, package management, data binding, UI and general systems and editor tooling that support our games and their features and functionality. You will collaborate closely with other engineering teams, design, production, QA, and other stakeholders in the studio to deliver high-quality user experiences on multiple platforms including desktop, console, and mobile. Your contributions will directly shape the technical foundation and player-facing experience of Football Manager, helping deliver intuitive, performant, and engaging games to our global player base. We expect our senior software engineers to take ownership of their work and professional development goals, continuously enhancing their technical knowledge and communication skills. You will also be expected to lead by example, mentor junior engineers, and promote best practices across the team. KEY RESPONSIBILITIES • Design, implement, and maintain complex and scalable systems and features using C# and Unity that form the technical foundation for our games., • Contribute to the development, profiling and optimisation of our code, including using Unity’s UI Toolkit and dynamic data binding., • Support the development of editor tooling and workflows that enhance productivity and streamline content integration across multiple disciplines including engineers, art & design., • Own and maintain areas of our C# codebase, ensuring performance, maintainability, and cross-platform compatibility across desktop, console, and mobile platforms., • Collaborate with cross-functional teams – including design, engineering, QA, and production – to deliver high-quality user experiences and features., • Participate in planning and roadmap discussions, contributing technical insight and helping shape feature delivery and long-term architecture., • Investigate and resolve complex technical challenges, including performance bottlenecks., • Mentor junior engineers, promote best practices, and foster a culture of continuous learning and technical excellence. KNOWLEDGE, SKILLS & EXPERIENCE • Extensive professional experience in video game development using C#., • Deep proficiency in C# is essential, including a strong understanding of memory management, garbage collection, async programming, and performance., • A strong experience and understanding of Unity., • Experience with Unity’s UI Toolkit is beneficial but not essential., • Experience developing Unity editor tooling and systems that support multi-disciplinary teams., • Solid understanding of software engineering principles, design patterns, and profiling and performance optimisation., • Proven ability to write clean, maintainable, portable, performant and well-documented code., • Familiarity with C++ is beneficial, particularly in contexts where Unity interfaces with native modules, but not essential., • Experience with cross-platform development across desktop, console, and mobile environments., • Strong analytical and problem-solving skills, with a proactive approach to technical challenges., • Excellent communication skills and ability to collaborate effectively across disciplines., • Self-motivated with a commitment to continuous improvement and team support., • Experience mentoring junior engineers and contributing to team-wide technical growth., • Knowledge of Football Manager is beneficial; interest in football is a plus. Benefits of Working at Sports Interactive: A flexible working policy to best suit you and your team. 🏠 Subsidised mental health, therapy and coaching sessions are available. 😌 Contributory Pension Scheme (up to 7% of annual salary). 🏦 Free onsite evening bar in the Sports Interactive London HQ. 🍹 A well-stocked breakfast bar with cereals, fruits, teas, and coffees. 🥣 Regular events in collaboration with our partnered football clubs. 🏟️ Access to our on-site physical and massage therapist services. 💆 Multiple clubs and societies to join e.g., book club and art workshops. 🫶 Free access to games released under the SEGA Europe umbrella. 🕹️ A range of Gym Membership options through our Benefits partners. 🏋️ Fully Subsidised Healthcare and Dental Plans. 🦷 Free Travel Insurance for yourself and your family. ✈️ A personalized football shirt upon passing probation. 👕 What is it like to work here? We approach everything with passion, whether that is making our mark on the gaming and football industries or doing our bit for the world around us. We want to share that outlook with everyone who shows up to work here each day. For us, talent wins games, but teamwork wins titles. Collaboration is the key to constantly topping our best. We believe everyone matters, no matter which part of the business you are in, so we encourage and support our people in driving your own growth and realising your full potential. But, more than anything else, we are a team. A team with a down-to-earth dynamic, that has a lot of fun doing what we do. And whether that’s technical tweaks or fine-tuning our creative process, everything is geared at producing the best game possible for our players. To do that, we need to be tenacious and move quickly, and not be afraid of switching things up. It is these principles that have enabled us to produce a game that has defined year after year, and that will continue to push us for many more to come. Our flexible working culture gives you the opportunity to optimise your workload, with in-office, hybrid, and remote working options dependent on role. So, if you want a work/life balance, we are behind you. Because while we live to create extraordinary games, we know that is not all you have got going on. You can trust that we always keep things in perspective, fostering an environment where work can be more than just a job. We’re also a London Living Wage employer, boast one of the lowest staff turnover rates in the industry and are proud to have won the ‘Best Places to Work’ award by Gamesindustry.biz in large company category in 2023. We are proud to be an equal opportunities employer and encourage applications from any relevant candidate irrespective of sex, race, disability, age, sexual orientation, gender reassignment, marriage or civil partnership, pregnancy or maternity, religion, or belief. SI is proudly a Disability Confident Committed employer, and we are dedicated to ensuring our recruitment process is inclusive and accessible. Our studio has disabled access and facilities but please ensure you advise us if you require any other reasonable adjustments to be made to support you during the recruitment process. Our Values: Keep collaborating: Teamwork wins titles - Here, ideas belong to everyone, whatever department you’re part of. Collaboration lets us score more as a team than we could individually. Be flexible: We think fast and adapt faster. The football and entertainment worlds never stand still, so we keep progressing and switching things up to stay ahead. Stay Tenacious: We don’t overlook the details. Everything we do is about producing the best game possible, in other words, never settle. Show Ambition: Let your drive lead the way - Your individual outlook can give everyone the edge. Make the studio’s purpose personal and let your drive lead the way. Bring the Passion: Have fun doing your thing - Don’t be fooled, what we do is not a game. Making our players’ passion come to life is our passion. Consider the Bigger Picture: Keep things in perspective - We want our impact to be a positive one. From built-in work/life balance to initiatives covering the most important topics of today, we have what matters in focus.

Affinity Labs: Founding Engineer (Backend) Location: London Area, United Kingdom · On-site Company Description At Affinity Labs, we’re building the future of company creation, a full-stack AI venture studio that partners with content creators to co-found authentic, scalable software businesses. By combining AI-native development with creator-led distribution, we're pioneering a new model of monetisation by to rapidly build, launch, and scale digital ventures aligned with creators and their audiences. We aim to launch ventures 10x faster and cheaper than traditional methods using our internal "AI factory": a multi-agent architecture, reusable component libraries, and a growing knowledge graph that learns from every product we ship. Why Affinity Labs: Ship at rapid pace with AI-accelerated workflows, see your work distributed to thousands of users at launch, and compound impact across multiple product, not just one. Role Description You’ll lead end-to-end backend development across our products: scoping services, designing data models and APIs, building, testing, shipping, and iterating in tight cycles. This is an early-stage, hands-on role with significant autonomy and responsibility to drive backend product development, collaborating closely with founders, creators, and product/design to turn lean specs into reliable, scalable services. Responsibilities • Implement features end-to-end on the backend (APIs → data models → integrations) and maintain quality while moving fast., • Run tight build, test, iterate, ship loops; provide realistic estimates and surface blockers early., • Manage tech debt pragmatically; record key decisions as lightweight ADRs/notes in the tooling., • Participate in daily standups and weekly planning, contribute to technical strategy & execute from Linear tickets., • Contribute to architecture and product discussions; be heard in debate, align to unified decisions., • Own operability: set up and maintain CI/CD, monitoring/alerting, performance & error budgets, and safe rollback paths., • Build and integrate AI features (LLM/agent workflows, RAG/vector DB integration, eval hooks, cost/safety guardrails). Essential Requirements • 3-6+ years building production backends/services, with shipped work and clear ownership., • Strong Python (FastAPI) and database skills (PostgreSQL/MongoDB); solid API design fundamentals., • Familiarity with AWS serverless patterns and Docker for bespoke services; basic CI/CD concepts., • Comfortable with Redis (caching/sessions) and common queue/messaging patterns., • Startup mindset: high ownership, pace, ambiguity; willing to burn the midnight oil when needed., • Growth mindset & flexibility: open to feedback; not rigid about stack/tools., • Clear communicator & collaborator; lean on your experience to guide product decisions., • Evidence of shipping quickly in small teams (links to repos, case studies, or live services). Desired • Node.js alongside Python for services or integrations., • Experience with vector databases (e.g., Chroma) and embedding pipelines., • LangChain or CrewAI for orchestration; MCP servers for integrations., • Security hygiene (secrets, permissions, least-privilege) and practical data-privacy basics., • Planning & execution in Linear (or similar). Tools & Stack • Backend/Runtime: Python (FastAPI), Node.js., • Datastores: PostgreSQL, MongoDB (as appropriate), Redis (caching/sessions)., • Vectors/Embeddings: Chroma (or similar)., • AI Models & APIs: Claude (Anthropic), Gemini (Google); Amazon Nova Canvas (vision), Deepgram (audio)., • AI Dev Tools: LangChain or CrewAI (orchestration), MCP servers (integration), GitHub Copilot / Claude Code., • Infrastructure: AWS (serverless functions), Docker (primarily for custom MCPs)., • Frontend (when needed): React/Next.js (for dashboards/admins, used selectively). Competencies & Behaviours • Communicates clearly with technical and non-technical teammates., • Takes ownership from concept to deploy and through maintenance., • Balances technical excellence with pragmatic delivery to meet business needs., • Adapts quickly to changing requirements and emerging tech; applies AI learnings., • Sets clear goals, tracks progress, and hits commitments; collaborates across disciplines. Why this role is a career launchpad • Own the code & the company. You step in as a Founding Engineer with a meaningful equity stake from day one., • Ship faster with AI at your side. Our workflow bakes in AI so you spend your time solving real problems—not boilerplate., • Ride a rocket. Our wider vision is big and the bar is high; we need driven people who can help us achieve an ambitious roadmap., • Grow like crazy. You’ll architect, build, and launch multiple products each year. The shipping reps you’ll get in 12 months here would take 3–4 years in a typical startup. There’s a lot of work, it’s high intensity, and the expectation is to ship extremely quickly., • Learn from builders, not bosses. Work shoulder-to-shoulder with a team that has scaled VC-backed startups, closed multi-million-pound term sheets, and collaborated with 1,000+ creators across formats and categories.

Position: Back-End Engineer Location: London, 4 to 5 days per week on site Compensation: Competitive salary and equity, depending on experience Reports to: Head of Engineering About Navys Navys is a venture-backed legal technology company building enterprise workflow software for private capital markets. The platform replaces manual, email-driven legal processes with a structured system that enables funds lawyers, GPs and LPs to execute complex transactions more efficiently. Navys is focused on real legal workflows, not generic AI tools or document summarisation, and is designed to support production-grade, enterprise use cases. Navys is building core infrastructure for how funds legal work is done, with a strong emphasis on execution, clarity and real-world impact. Role Summary Navys is seeking a Back-End Engineer to join the team on a full-time basis. This is a hands-on engineering role focused on building robust, scalable backend systems that power complex legal workflows and transaction management. You will be responsible for designing and implementing core backend services, APIs and data infrastructure that form the foundation of the platform. This role requires deep technical expertise in backend architecture, strong ownership and the ability to translate complex legal workflows into efficient, reliable systems. This is not a narrow or isolated engineering role. It requires ownership, comfort with ambiguity, and the ability to take responsibility for backend features and services from early design through to production deployment. Responsibilities Backend Development and API Design • Design, build and ship scalable backend services and RESTful APIs in Python, • Architect and implement data models that support complex legal workflows and transaction orchestration, • Translate complex legal and operational requirements into efficient backend systems, • Take ownership of backend features from concept through to production release Platform Infrastructure and Performance • Develop and maintain cloud infrastructure with a strong focus on Azure services, • Design and implement database schemas, optimise queries and ensure data integrity, • Build resilient, performant systems capable of handling enterprise workloads, • Ensure backend services are secure, maintainable and scalable as usage grows System Architecture and Collaboration • Influence backend architecture decisions and help define engineering best practices as the team grows, • Work closely with the Head of Engineering, frontend engineers and product team to align technical execution with product priorities, • Collaborate with legal domain experts to understand workflow requirements and design appropriate backend solutions, • Support early customer deployments and troubleshoot production issues Candidate Profile Essential Requirements • Strong proficiency in Python with experience building production-grade backend systems, • Solid experience designing and building scalable RESTful APIs and microservices, • Deep understanding of relational databases, data modelling and SQL, with PostgreSQL experience preferred, • Experience with at least one major cloud platform, with Azure strongly preferred and AWS acceptable, • Understanding of authentication, authorization and security best practices in enterprise SaaS applications, • Knowledge of containerisation technologies such as Docker, • Strong problem-solving and analytical skills with attention to system performance and reliability, • Strong communication and collaboration abilities across technical and non-technical teams, • Comfortable operating in a fast-paced, early-stage start-up environment Desirable Requirements • Experience with infrastructure as code such as Terraform or Bicep, • Familiarity with Azure services including Azure Functions, Azure SQL, Key Vault, Blob Storage and Service Bus, • Experience building workflow or transaction-heavy systems, • Exposure to AI or LLM-based tooling such as OpenAI, Azure AI or LangChain, • Understanding of message queues, event-driven architectures or async processing patterns, • Experience in legal tech, fintech or another highly regulated domain, • Understanding of compliance, security and resilience requirements in enterprise software systems What Navys Offers • Competitive salary plus meaningful equity at an early stage, • A foundational engineering role with real ownership and impact on core backend systems, • Close collaboration with engineering leadership and founders, • Opportunity to grow as the company scales Equal Opportunity Employer We are committed to fostering a diverse and inclusive workplace. As an equal opportunity employer, we do not discriminate on the basis of age, disability, sex, race, religion or belief, gender reassignment, marriage or civil partnership, pregnancy or maternity, or sexual orientation. All qualified applicants will receive consideration based on individual merit and business needs.

London or Manchester (Hybrid) | £50,000 – £80,000 + Equity About us At the forefront of using investment portfolios as security for access to credit, Firenze is emerging as the category defining leader in what is known as “Lombard lending”. We already work with some of the UK’s leading wealth management firms to unlock access to what has historically only been available to UHNW clients of private banks. Backed by top tier investors, Firenze is now scaling the team to continue to ensure our credit infrastructure is underpinned by innovation, cutting-edge technology, and an unwavering commitment to driving client outcomes. Role Overview As a Full Stack Software Engineer, you’ll design, build, and deliver customer-facing features across our greenfield platform. You’ll work end-to-end—crafting TypeScript frontends and robust Java back-ends—while learning from experienced engineers and contributing to a modern, scalable architecture. This is a hands-on role with plenty of opportunity to develop your technical depth, gain exposure to DevOps, cloud, and observability practices, and help define how we build software at Firenze. With no legacy systems, you’ll be shaping our platform from the ground up and growing alongside a team that values mentorship, learning, and engineering excellence. Key Responsibilities • Feature Delivery: Collaborate with senior engineers to deliver new features from design to production., • Back-End Engineering (Java): Build APIs and microservices using Java (Spring Boot, Micronaut, or Quarkus), with guidance on best practices for performance and reliability., • Front-End Engineering (TypeScript – Nuxt/Vue): Develop responsive, accessible UIs with strong component and state management., • Data & Integration: Work with PostgreSQL, caching (Redis), and messaging (Kafka/SQS) — learning how to design resilient data flows., • Quality & Testing: Contribute to our testing culture (JUnit, Playwright, CI pipelines) and learn how to scale reliable delivery., • Performance & Observability: Gain hands-on experience with monitoring tools and learn how to build observable systems from day one., • Documentation & Developer Experience: Help create clear technical docs and reusable tooling that makes development smoother for everyone., • Cross-Functional Collaboration: Partner with product, design, and experienced engineers to break down work, estimate effectively, and deliver iteratively. Requirements • Experience: 3+ years of professional software engineering, including full-stack work on production systems (fintech or startup experience a plus)., • Java Proficiency: Hands-on experience building APIs/microservices in modern Java (Spring Boot or similar)., • TypeScript & Vue: Solid experience developing production-grade web apps with TypeScript and Vue/Nuxt., • Web Fundamentals: Good grasp of HTML/CSS, accessibility (WCAG), and secure web app design., • Databases & Messaging: Familiarity with PostgreSQL and at least one of Redis, Kafka, or SQS., • Testing Mindset: Comfortable writing and running tests; familiar with CI pipelines (GitHub Actions, GitLab CI)., • Cloud & Containers: Exposure to AWS or another cloud platform and Docker. (Kubernetes or ECS a plus.), • Growth Mindset: Curiosity to learn new technologies, seek feedback, and develop alongside experienced teammates. Bonus Skills • Interest in event-driven or distributed systems (Kafka, RabbitMQ, SQS)., • Exposure to DDD, CQRS, or hexagonal architectures., • Experience with observability tools (OpenTelemetry, Prometheus, Grafana)., • Familiarity with multi-tenant SaaS, RBAC, or performance tuning (JVM, SQL). Why Join Us? • Learn from experienced engineers: Work side-by-side with senior teammates who value teaching, pair programming, and open design discussions., • Accelerate your growth: Gain exposure to architecture, DevOps, security, and observability while contributing to production systems early on., • Impact: Shape a greenfield fintech platform with real business influence and visibility., • Collaboration: Join a supportive, high-performing team that values curiosity, innovation, and shared ownership., • Career Development: Clear progression opportunities as Firenze scales — move towards senior or specialist roles with mentorship and hands-on experience., • Competitive Salary (£50,000-£80,000) depending on experience, plus equity participation. You’ll be part of a hybrid team based in London or Manchester, combining the best of in-person collaboration with the flexibility of remote work. You’ll join a culture that values continuous learning, feedback, and building things the right way — not the fast way.

🌍 Location: London (Hybrid: 4-8 days a month) 💷 Salary Range: £70,000-100,000 📈 Equity: Meaningful early-stage equity 🕒 Stage: Seed → Series A 🌐 Website: Cyb3roperationsCyb3r Operations | Supply Chain & Third Party Intelligence About Cyb3r Operations Cyb3r Operations is building a modern third-party risk intelligence platform that gives organisations real-time visibility into: • Supply-chain and vendor risk, • Financial stress indicators, • Cyber exposure and shadow IT, • Surface, deep and dark-web intelligence, • Breach data, impersonation activity and industry-specific signals Our platform ingests and enriches large volumes of external intelligence to help security, procurement, CFO and resilience teams understand exposure instantly. We have: • Closed our seed round and are entering the next stage of growth, • Expanding the platform, engineering team and customer footprint, • Preparing for Series A with a focus on platform maturity and deeper integrations We're hiring a Senior Lead Software Engineer as a foundational member of our engineering team, someone who will help us build robust, scalable systems and shape how we grow the team around them. Role Overview This is a key early hire. You'll work across the full stack with a strong emphasis on backend services and infrastructure, helping us build systems that scale as we grow. You'll work closely with the Director of Engineering to establish patterns, improve reliability, and lay the groundwork for a larger engineering team. You will: • Design and build backend services that ingest, process and serve intelligence at scale, • Own and evolve our AWS infrastructure, ensuring it's secure, cost-effective and production-ready, • Work across the stack when needed, comfortable contributing to frontend, APIs and data layers, • Help define engineering practices, tooling and processes as the team grows, • Be a key voice in technical decisions and architectural direction, • Mentor and support engineers as we expand the team This role suits someone who wants to build things properly, cares about the foundations, and is excited by the opportunity to shape both the platform and the team. Key Responsibilities Backend Development • Design and build performant, maintainable backend services in TypeScript/Node.js and Python, • Develop APIs using Fastify and integrate with internal and external data sources, • Build data pipelines and processing workflows that handle high-volume intelligence feeds, • Implement robust error handling, logging, monitoring and alerting, • Write clean, well-tested code with clear documentation Infrastructure & Cloud Engineering • Own and manage AWS infrastructure (ECS, Lambda, RDS, S3, CloudFront, SQS, EventBridge, etc.), • Design for scale, reliability and cost efficiency from the outset, • Implement infrastructure-as-code using Terraform, • Build and maintain CI/CD pipelines for consistent, reliable deployments, • Establish security best practices across infrastructure and application layers, • Monitor, troubleshoot and optimise production systems Architecture & Technical Leadership • Contribute to architectural decisions that support long-term scalability, • Identify technical debt and propose pragmatic approaches to address it, • Evaluate and introduce tools and technologies where they add genuine value, • Document systems, decisions and patterns to support team growth, • Participate in incident response and post-mortems, driving continuous improvement Team Growth & Collaboration • Work closely with the Director of Engineering on priorities, planning and team development, • Help interview, onboard and mentor new engineers as we scale, • Communicate clearly and proactively, flag risks early, share context generously, • Collaborate with Product and other stakeholders to refine requirements and trade-offs, • Foster a culture of learning, quality and mutual support Technical Environment Backend: • Node.js, TypeScript, Fastify, • Python for data processing and automation, • Postgres, Supabase, Redis, • Event-driven microservices architecture, • n8n for workflow automation, • LLM-powered enrichment pipelines Infrastructure: • AWS (ECS, Lambda, RDS, S3, CloudFront, SQS, EventBridge, IAM, VPC), • Terraform for infrastructure-as-code, • GitHub Actions for CI/CD, • Monitoring and observability tooling Frontend (for fullstack context): • React, TypeScript, Vite, Next.js Bonus familiarity: • Graph databases and GraphML for relationship modelling, • .NET for legacy integration or specific tooling, • Cyber Security, • SOC2 / CE+ / Regulatory experience What Success Looks Like (First 12 Months) • Core backend services and infrastructure are more scalable, reliable and observable, • Clear architectural patterns established that the team can build upon, • Meaningful contribution to at least one significant platform capability, • Infrastructure costs are understood, monitored and optimised, • Strong working relationships across engineering, product and leadership, • Actively contributed to hiring and onboarding new team members, • Recognised as a trusted technical voice in decisions and planning Ideal Experience • 5+ years of backend development experience, with strong TypeScript/Node.js and Python skills, • Solid, hands-on AWS experience—you've built and operated production infrastructure, not just used managed services, • Experience designing systems for scale, even if you haven't yet operated at massive scale, • Comfortable across the stack—backend-focused but can contribute meaningfully to frontend when needed, • Worked in startup or scale-up environments where you've had to build, ship and iterate quickly, • Experience with infrastructure-as-code (Terraform preferred), • Clear, confident communicator who can explain technical concepts to varied audiences Bonus: • Experience with graph databases or GraphML for modelling complex relationships, • .NET experience for specific integrations, • Familiarity with cyber security, threat intelligence or risk platforms, • Experience building data pipelines or working with high-volume data ingestion, • Previous involvement in growing or mentoring engineering teams What We're Looking For Beyond technical skills, we're looking for someone who: • Loves building: Energised by creating products that solve real problems, • Builds for scale: Thinks about what happens when it grows, not just when it works, • Grows people: Wants to help others develop—shares knowledge, gives feedback, lifts the team, • Stays curious: Asks questions, digs deeper, never assumes they know everything, • Keeps learning: Actively develops their skills and stays engaged with the craft, • Stays humble: Ego-free, open to challenge, happy to be wrong if it leads to better outcomes, • Communicates clearly: Can articulate ideas, trade-offs and concerns directly and constructively This is an early, foundational role. We need someone who cares about getting it right and wants to help us build something that lasts. Why Join Cyb3r Operations This isn't a 9-5. We're building something meaningful, and we're looking for people who want to be part of that. • Foundational impact: Join as a key early hire and shape how we build—both the platform and the team, • Real ownership: Your decisions matter, your code ships, your influence is tangible, • Talented team: Work alongside experienced engineers, intelligence analysts and security professionals who care about their craft, • Shared success: We celebrate wins together and recognise the people who make them happen, • Growth opportunity: Help us scale from seed to Series A and beyond, your career grows with us, • Cyber security domain: Work on problems that matter, in a space that's only becoming more critical, • Competitive package: Salary, matched pension contribution, unlimited leave and flexibility that reflects your experience and contribution If you want to build robust systems, help grow a strong team, and be part of something from the early days, we'd love to hear from you.

About PRODA At PRODA () we are building software to unlock the full potential of Real Estate Data no matter the asset class, language, or country of origin. Our solution leverages the latest technologies to automatically capture, standardise and quality check Real Estate data into a single, clean source of truth. The goal is to empower real estate professionals to quickly gain actionable insights from their data and to enable the effective use of software. Despite being the biggest asset class in the world, the commercial real estate industry relies on excel & PDF “Rent Roll” documents as the primary means of exchanging data. These files are frequently inconsistent, inaccurate, and inaccessible, posing challenges for real estate professionals. Through automated data capture, standardisation, and analysis, PRODA can: · Build repositories of clean, standardised data · Increase process efficiency, through faster report generation · Improve data-driven decision making, by ensuring the accuracy of input data Furthermore, PRODA easily integrates with existing systems, to ensure consistent dataflow through the whole organisation. Founded in 2017 by Charles and Peter, two former Real Estate Finance Investment professionals, PRODA is now 66 people strong, and is looking to expand rapidly following a successful Series A raise in Q2 2022. PRODA has a strong globally recognised client base with an even better sales pipeline. We are looking for you to join us on our exciting journey delivering best-in-class software to the Commercial Real Estate market globally. Role We are looking for a Software Engineer to join the team at PRODA that works on the automatic extraction, classification, standardisation and validation of financial data documents in commercial real estate. We encourage candidates of all experience levels to apply, including recent graduates and those with several years of relevant work experience. Responsibilities • Develop flows for extraction of data from financial documents in PDF and Excel formats., • Work with a generalised data model, and a process to convert extracted data into that using standardisation and validation steps., • Drive the development of automation with a focus on enhancing speed, accuracy, and applicability., • Stay abreast with emerging technologies and industry trends in financial data reporting and requirements of clients., • Clearly and concisely communicate findings and recommendations to both technical and non-technical stakeholders. Required Skills & Qualifications • Bachelor’s degree in computer science, mathematics, physics or another relevant STEM discipline., • Proven experience in solving complex problems, ideally in data extraction and modelling., • Comfortable solving problems at every level, from algorithms and data structures to system design., • Expertise in Python., • Experience of full-stack development., • Ability to work independently as well as part of a collaborative team., • Strong project management skills with the ability to meet deadlines. Preferred Skills & Qualifications • Experience with TypeScript and React., • Experience with cloud platforms. What We Offer • Opportunity to learn and grow in a fast-paced, cutting-edge environment., • Access to the latest technology and tools to make you productive, including the latest MacBooks, along with AI tooling., • A supportive environment with a focus on professional development and growth., • A culture that values simplicity and efficiency in solving problems and delivering solutions. Working at PRODA As a rapidly growing SaaS business, life at PRODA is fast-paced and collaborative. Our day-to-day work is solving interesting problems using smart technologies, and we pride ourselves on an environment where we can rapidly develop new skills, learn from each other, and truly see the impact of our work. We believe that our product is transformative, and we work hard to ensure it reaches its potential. Our team is our greatest asset: we are a close-knit group who pull together to achieve our goals, but we also have fun! Further to a strong team environment, working at PRODA offers the following amenities: • Flexible Hybrid working options, • Stock Options in the Business, • 25 days base holiday, • Full zero-excess Private Health & Dental Insurance, Includes Couple and Family plans, • Generous Pension Schemes, • Opportunities for Professional Development + Learning Sessions PRODA treats people fairly. We are an equal opportunities employer and view all applications equally, regardless of gender, colour, ethnic background, religion, disability, age, sexual orientation, gender reassignment or marital/family status.

Senior DevOps Engineer London (Hybrid: 2 days onsite) £500-£520 per day | Outside IR35 | 6-month contract Contact: Overview We are seeking a Senior DevOps Engineer to support mission-critical platforms in the financial risk and compliance space. This is a hands-on role focused on CI/CD, deployment automation, and Kubernetes-based infrastructure supporting highly reliable, scalable services. You will work closely with engineering and QA teams to ensure efficient, compliant, and traceable delivery across multiple environments. Key Responsibilities • Lead and optimise CI/CD pipelines to improve deployment speed, reliability, and consistency., • Automate deployments and environment configuration using infrastructure-as-code (e.g. Terraform)., • Embed deployment best practices across development and QA workflows., • Support production handover, incident triage, and defect prioritisation., • Promote resilient, self-healing microservices and strong operational practices., • Manage stakeholder communication and track delivery risks and dependencies., • Maintain a strong understanding of end-to-end architecture and system integrations. Required Experience • Strong background in DevOps practices, tooling, and automation., • Proven experience leading DevOps initiatives across development and operations teams., • Hands-on experience with Kubernetes, Linux/Unix, and containerised systems., • Experience building and operating deployment pipelines and debugging distributed systems., • Knowledge of relational databases (SQL) and NoSQL technologies., • Familiarity with modern architectures including containers, APIs, and streaming platforms., • Experience working in Agile environments and using Git with established branching strategies., • Ability to produce clear operational documentation (e.g. runbooks).

A leading ESG Data firm focusing on AI is seeking a talented and experienced Lead Software Engineer to join their growing technology team in London. In this role, the successful candidate will play a key role in executing new projects and supporting existing applications that drive operational efficiency across the business. The role will remain hands-on, with responsibility for designing systems, writing production code, and solving complex technical challenges, while also taking ownership of the people and processes that enable the engineering team to operate effectively. Working closely with the CTO, the successful candidate will help shape the company’s technical direction, drive delivery against the product roadmap, and contribute to building a high-performance engineering culture. On a day-to-day basis, the position balances technical contribution with leadership responsibilities. This includes mentoring and supporting engineers in their development, coordinating delivery to ensure key milestones are met without compromising quality or team wellbeing, and acting as the engineering representative in cross-functional discussions. The role will also play a key part in evolving the technology stack, tooling, and engineering practices, identifying strategic improvements that enhance the team’s ability to deliver reliable software at pace. Contact Ciara Clarke at Harrington Starr for a confidential discussion on this role.

Python Software Engineer – High-Frequency Trading We're working with a high-frequency trading (HFT) firm that is looking to expand its technology team with a Python Software Engineer. This is an opportunity to join a trading firm operating at the cutting edge of global markets, where technology and speed are paramount. They build and run highly scalable, ultra-low latency trading systems that compete across major global exchanges. You’ll work on some of the most complex and rewarding engineering challenges in the financial technology space. The Role As a Python Software Engineer, you’ll collaborate with traders, quantitative researchers, and other developers to design, develop, and optimise trading infrastructure. You’ll be directly contributing to systems that operate at nanosecond-level latency and handle massive volumes of real-time data. Key Responsibilities • Develop and maintain systems for real-time market data, trade execution, and reconciliation., • Optimise performance and scalability across key trading infrastructure components., • Partner with cross-functional teams to improve tooling, observability, and automation., • Deliver robust, production-ready solutions in a fast-paced environment. Requirements • Min 2+ years of Python experience in a professional setting (HFT, trading, fintech, or other high-performance domains)., • Exposure to C++ or willingness to work in multi-language environments is a plus., • Familiarity with SQL databases and Linux-based systems., • Interest in financial markets, real-time systems, or algorithmic trading. Why Apply? • Opportunity to work on high-impact systems used in live trading., • Collaborate with some of the brightest minds in quantitative finance and software engineering., • Competitive compensation package with a base salary, plus bonus. We are reviewing applications on a rolling basis. If this role sounds like a fit, apply now to learn more. Please note: Due to high application volume, we’re only able to respond to candidates who are shortlisted within 3 working days.

Lead Engineer – Climate Reporting SaaS Platform - Remote UK We are working with a small, mission-driven SaaS startup that is building a digital platform to support climate change reporting at scale. They are looking for a Lead Engineer with strong TS, React/Node (ideally Next.js) experience to take full technical ownership of the platform as it evolves and grows. You will get to work with the latest AI tools and will be working heavily with Cursor. Experience or at least a serious interest working this way is a must have. This is a completely greenfield project and a rare opportunity to lead the development of a meaningful product that directly supports organisations in meeting their climate obligations. You will work with a high level of autonomy, reporting into the CTO and driving technical decisions day to day. The product is already in use and will be the foundation for further growth and expansion. You’ll collaborate closely with product, design and policy specialists to shape the future of the platform, ensuring it remains robust, user-friendly and compliant with key standards around accessibility and data security. What You’ll Be Doing: • Own the engineering delivery across both front-end and back-end of the product, • Make key decisions around technical architecture, tooling and implementation strategy, • Lead the development of structured, form-based interfaces with complex validation and data handling, • Collaborate with internal teams and external partners to integrate with cloud infrastructure and data systems, • Ensure the platform meets accessibility and security best practices, • Translate climate reporting requirements into scalable, user-friendly digital workflows What They’re Looking For: • Around six or more years of engineering experience, including time in a lead or senior role, • Deep experience with React and TypeScript in production environments, • Strong knowledge of building structured forms and data-driven web applications, • A desire to be working with the latest AI tools (but not just for the hype), • Familiarity with cloud environments, ideally AWS, and CI/CD practices, • Solid understanding of accessibility principles and good UX for form-heavy products, • Able to work independently, take initiative and guide product direction from a technical perspective, • Any exposure to sustainability, climate data, or compliance-driven platforms is a bonus, but not required Why Join: • Lead the technical direction of a growing SaaS product with genuine social impact, • Join a small, agile and mission-led team where your work has clear purpose, • Work with a high degree of independence, trusted to make decisions and shape the platform This is a brilliant opportunity for a Senior or Lead Engineer who is looking for a lot of autonomy and the chance to work with the latest tools.

Product Engineer | FastAPI, React, Supabase | Generative AI Start Up • Salary: Up to £100k + meaningful equity, • Location: Central London Offices, On-site, • (Sponsorship is not available at this time.) The Role You’ll join a small, high-calibre engineering team building AI-native products from the ground up. In this role, you will work across the full stack to architect, build, and ship production systems powering multimodal AI agents. You’ll design intuitive interaction models for human–AI collaboration, develop scalable backend services, and rapidly prototype new features at pace. You’ll also work directly with the founding team to shape technical direction, defining the platform architecture and helping build a genuinely new category of agent-led product development. This is a true 0→1 engineering environment where you’ll have deep ownership and impact. Non-Negotiables • Full-stack engineering experience with production delivery, • Ability to ship end-to-end features in containerised environments, • Comfortable navigating ambiguity, shifting priorities, and rapid experimentation, • Strong problem-solving mindset with ownership and resilience Nice to Haves • Founder or founding engineer background, • Experience building interfaces for agentic workflows, • Exposure to LLMs, multimodal models, or agent UX (AX), • Experience shaping technical strategy in early-stage teams What You’ll Work With • FastAPI backend development, • React engineering and modern frontend tooling, • Supabase or similar cloud-native backend tools, • LLM agent workflows: tool calling, memory, retries, context updates, • Human–AI interaction models and agent UX (AX) design, • System design, architecture evolution, and scaling pathways, • MCP integrations and multimodal agent capabilities Why join You’ll join a deeply AI-native engineering culture where you’ll help define how humans and agents build products together. You will: • Influence core platform architecture during its foundational stage, • Build and iterate on multimodal agent systems, • Prototype and refine new models of human–agent collaboration, • Work closely with founders on strategy and product direction, • Be part of a high-intensity, supportive team obsessed with building exceptional products Product Engineer | FastAPI, React, Supabase | Generative AI Start Up

Locai Labs is The British Foundational AI Company based in Paddington London. We are dedicated to building world class large language models at the forefront of cost and efficiency. Our mission is to advance cutting-edge AI from within the UK by combining deep technical innovation with engineering excellence to create powerful scalable models that compete on the global stage. Our models are designed not just for performance, but for real-world deployment powering bespoke agentic applications that solve complex challenges across enterprise and consumer domains. The Role We are seeking a DevOps / Platform Engineer to maintain and enhance our existing platform infrastructure, with opportunities to contribute to backend development when needed. Our systems are already live and in active use, so your focus will be on reliability, performance, automation, observability, and clean, maintainable Infrastructure-as-Code. You’ll also support Python and Node.js backend services. This role is centred on operational excellence, continuous improvement, and technical ownership. The position is based at our Paddington HQ and reports directly to the Chief Technology Officer (CTO), ensuring close alignment with our technical vision and strategic roadmap. Responsibilities • Maintain and evolve cloud infrastructure, primarily on Google Cloud Platform (GCP), with some exposure to AWS and Azure, • Write, review, and manage modular, reusable Terraform code, • Operate and enhance CI/CD pipelines using GitHub Actions, • Containerise and deploy backend applications using modern tooling (e.g., Docker, Kubernetes), • Implement and manage comprehensive logging, monitoring, and alerting systems, • Contribute to the backend codebase for service integrations, internal tooling, and incident resolution, • Improve developer workflows and internal automation to increase team velocity, • Proven experience operating production-grade systems in a live environment, • 1–3 years experience in DevOps, Cloud Engineering, or Platform Engineering roles, • Hands-on experience with Infrastructure-as-Code using Terraform (modular and reusable patterns preferred), • Strong foundation in Linux, networking, and container technologies, • Experience deploying and managing applications on at least one major cloud provider (GCP preferred; AWS or Azure acceptable), • Experience working with relational databases in production environments (e.g., Postgres, MySQL), including basic performance troubleshooting, migrations, backups, and access control., • Familiarity with observability tools such as Prometheus, Grafana, ELK stack, or OpenTelemetry, • Experience with container orchestration platforms, particularly Kubernetes, • Ability to systematically troubleshoot and debug distributed systems, • Production experience with Google Cloud Platform (GCP), • Knowledge of security and IAM best practices, including role design, policy management, and access boundaries, • Experience optimising CI/CD pipelines for speed, reliability, and developer experience (e.g., caching, incremental builds, rollback strategies) You will join a small, highly technical team where your voice will be heard, and your contributions will directly shape our platform and products. We value ownership, curiosity, and a collaborative mindset. You’ll work onsite at our Paddington HQ, embedded within a close-knit engineering team that values transparency, continuous learning, and impactful work. This role reports directly to the CTO, offering a unique opportunity to influence technical direction from the ground up. Application Process As part of your application, please complete the accompanying form in addition to submitting your CV. Interview Stages: • Application Review – We assess your background and experience., • Take-Home Technical Assessment – A practical exercise to evaluate your engineering approach and problem-solving skills., • Technical & Team Fit Interview – A virtual discussion covering your technical expertise, past projects, and cultural alignment., • In-Person Assessment at HQ – A final visit to our Paddington office for deeper technical discussions, collaboration exercises, and team interactions., • Offer – Successful candidates will receive a formal offer following the final stage. If this sounds like you, no need to send us your CV. Just fill in the form below 👇 Strictly no agencies or recruiters. We are only accepting direct applications from candidates.

Hybrid – London | Global FinTech Innovator Our client is an established yet fast-growing FinTech specialising in high-performance market data analytics. Their platform ingests and processes terabytes of global trading data daily, powering decision-making for leading investment firms, exchanges, and research institutions. They’re now seeking a C++ Engineer to join their equities data team, helping scale the next generation of data-processing systems within a collaborative engineering leadership team. This role ideal for someone who thrives on solving deep engineering challenges in C++. The Role • Development for the firm’s equities data processing platform, working alongside other engineers and a senior architect.., • Develop and refine C++ market-data parsers and processing engines that handle high-frequency and reference data at scale., • Enhance system performance, fault-tolerance, and scalability, leveraging modern AWS-based distributed infrastructure., • Participate in a light-touch support rotation to ensure smooth daily operation of the firm’s data feeds. About You • Strong C++ development experience on Linux, delivering robust, performant systems into production, ideally 2 years or more., • Solid Python capability for orchestration, data tooling, and process automation., • Experience with large-scale financial or market data, particularly equities or other exchange-traded products., • Familiarity with modern engineering practices — CI/CD, source control, automated testing, and containerised deployment., • Excellent communication, organisational, and problem-solving skills. Contact: For further details or a confidential discussion about this opportunity, please reach out to Ciara Clarke.

Senior Data Engineer - Financial services Location: London - 2x per month Salary range: £75,000-£85,000 + 10% bonus + benefits Purpose: Build and maintain large, scalable Data Lakes, processes and pipelines Tech: Python, PySpark, AWS, Iceberg/ Kafka, Spark/Glue, CI/CD Industry: Financial services / securities trading Immersum continue to support a leading SaaS securities trading platform, who are hiring a Data Engineer to join a wider tech team of 25. You will be working on a blend of new and existing projects working with the latest tech in a greenfield large, highly scalable data lake environment. The Company: For the past 20+ years they have been a leading SaaS platform providing a full product suite of services to the securities trading sector. They serve in excess of 150 financial institutions and support the majority of major global banks. As they continue to grow their services to their customers they have an exciting opportunity for their Data Engineer to join the company to help grow and shape this function in the long term. The Role: The successful candidate will work across these areas: • Owning the build and maintenance of their Lake house and being the 'go-to' Data person in the business., • Working with stakeholders from across the business showing the possibilities that Data provides., • Build and manage new and existing pipelines as new products and functions become available on the platform, • Be comfortable or show an interest to learn CI/CD, IaC and Infra tooling using Terraform, Ansible and Jenkins whilst automating everything with Python Tech (experience in any listed is advantageous) • Python, • Cloud: AWS, • Lake house: Apache Spark or AWS Glue, • Cloud Native storage: Iceberg, RDS, RedShift, Kafka, • IaC: Terraform, Ansible, • CI/CD: Jenkins, Gitlab, • Other platforms such as Databricks or Snowflake will be considered You will have a fantastic opportunity to lead the Data Engineering division whether you decide to take your career path in leadership or IC, both routes are equally valuable for this role. You will be joining at a time when Data is in its infancy and helping to scale and growth the Data platform and processes to better serve the business. You will be working with stakeholders across the business who are experts in their fields and you will be supporting them as the Data expert. If this looks of interest please click apply to find out more! At this time sponsorship is not on offer.

All3 is transforming how buildings are conceived, developed, and delivered. We combine AI-powered design with robotic prefabrication and on-site assembly to build custom architecture at the cost and speed of mass production — unlocking even the most complex sites. We’re currently seeking a Robotics Software Engineer to build the control software for electro-mechanical systems, develop tooling for data logging and analysis, implement low-level device drivers and create simulation and validation workflows to support rapid prototyping and fast iteration. Responsibilities: • Designing and implementing control software for electro-mechanical and robotic systems;, • Developing tooling for data logging, analysis, and system performance insights;, • Building and maintaining device drivers for fieldbus interfaces (EtherCAT, CAN);, • Creating simulation environments for system behaviour, testing, and validation;, • Rapidly prototyping new features and system behaviours to support early-stage development;, • Collaborating with mechanical and control teams for integration;, • Ensuring reliability, safety, and maintainability across all software components. Expertise: • Proficiency in C++ and Python;, • MS degree providing a good foundation in mathematics;, • First-principles approach to problem-solving with the ability to break down complex systems;, • Experience with real-time control systems for robotic platforms or mechatronics platforms;, • Experience with data logging, analysis pipelines, and performance tooling;, • Prior robotics experience is beneficial but not required. We offer: • Chance to be a part of a large-scale project;, • Team driven by impactful cause;, • Hybrid format of work with the lab located in Park Royal;, • Private dental or full medical (dental treatments aren’t covered) insurance;, • Flexible working schedule;, • 28 days of annual leave.

We are looking for a DevOps Engineer to join our team and actively engage with and support DevOps technology adoption and modernization by all application development teams at the firm. The candidate will provide implementation and support services for our existing and prospective DevOps technology stack, as well as work directly with developers to improve their overall experience and productivity via implementing our DevOps tools and processes. Additionally, the candidate will focus on modernization efforts, including the use of containers and container orchestration systems. The role will also work closely with the Cloud Engineering and Security groups to ensure that our DevOps technologies continue to support our cloud adoption, primarily via AWS and Azure. Responsibilities include: • Implement and maintain the system stability, security, and performance of on-premise DevOps tools, including Atlassian's suite (Jira, Confluence, Bitbucket, Bamboo), JFrog, and others., • Design and maintain scalable and reliable CI/CD pipelines to support software development and deployment processes across a wide range of technologies, including both native and containerized applications written in Java, C++, Python and other languages, including container deployment to Kubernetes., • Collaborate with application teams to integrate DevOps tools and methodologies into existing workflows, as well as containerize existing native applications., • Develop automation scripts and frameworks to streamline development and operational tasks., • Centrally monitor and manage code repositories, build systems, and deployment environments., • Provide technical guidance and support to development teams regarding DevOps best practices., • Evaluate and implement new DevOps tools and technologies. Requirements: • 4-6 years of proven experience in managing on-premise versions of DevOps tools, particularly Atlassian's suite and JFrog, as well as designing CI/CD systems involving both native and containerized applications, including deploying containerized applications onto Kubernetes., • Strong understanding of CI/CD principles and experience with pipeline design and implementation, especially with Atlassian Bamboo and Jenkins., • Strong proficiency in scripting languages such as Python, Bash, or PowerShell., • Solid understanding of version control systems, particularly Git., • Moderate proficiency in Java and C++, especially for basic code comprehension and ecosystem tooling (e.g. package management and compilation), • Moderate proficiency in infrastructure as code and configuration management tools such as Terraform and Ansible, as well as similar tools in the Kubernetes ecosystem including Helm and ArgoCD., • Excellent problem-solving skills and the ability to work independently or as part of a team., • Strong communication and collaboration skills to effectively interact with various stakeholders within the organization.

A fast-growing AI-driven SaaS company is hiring three Senior Software Engineers to join its engineering team. These are hands-on roles with a strong backend and architectural focus, ideal for engineers who enjoy working in scale up or startup environments and want to build high-quality, cloud-native software that powers real-world automation. You’ll be part of cross-functional squads delivering modern, serverless, AI-enabled applications used in highly regulated industries. The company has a strong engineering culture, embraces AI-assisted development, and offers autonomy, impact, and the chance to help shape technical direction. Role: Senior Software Engineer Salary: £70,000 to £80,000 per annum Location: Fully Remote (UK-based) What you’ll be doing: • Design, build, and optimise scalable software using Node.js, TypeScript, React, AWS Lambda, Step Functions, DynamoDB, • Contribute to architecture discussions and ensure solutions are secure, cloud-native, and maintainable, • Use AI-assisted tooling to speed up development, testing, and debugging, • Work closely with Product, Delivery, and Technical Leads to refine requirements and deliver iteratively, • Mentor junior engineers and conduct code reviews to maintain quality and consistency, • Help drive best practices across DevOps, CI/CD, observability, and secure coding, • Collaborate with other squads to ensure technical alignment across the platform What you’ll need: • Strong full stack experience with a backend-first mindset, • Expertise in Node.js, TypeScript, React, and modern cloud engineering, • Hands-on experience with AWS serverless, particularly Lambda, Step Functions, DynamoDB, • Solid understanding of scalable architecture and performance optimisation, • Experience in scale ups, startups, or SMEs where speed, ownership, and adaptability matter, • Strong debugging, problem solving, and delivery skills, • Interest in or experience with AI-assisted engineering tools (e.g. GitHub Copilot), • Comfortable working in agile squads and contributing across the full SDLC What’s on offer: • £70,000 to £80,000 per annum, • Fully remote working across the UK, • Modern AI-first engineering environment, • Real ownership and impact in a growing product-led team, • Opportunity to shape tooling, workflow, and engineering standards, • Clear progression path into Technical Lead, • Collaborative culture with a focus on high-quality engineering and continuous improvement If you’re a hands-on engineer who enjoys building scalable backend systems, working cloud-first, and embracing AI-assisted development, this is a great opportunity to join a fast-moving team solving meaningful technical challenges.

Position: Front-End Engineer Location: London, 4 to 5 days per week on site Compensation: Competitive salary and equity, depending on experience Reports to: Head of Engineering About Navys Navys is a venture backed legal technology company building enterprise workflow software for private capital markets. The platform replaces manual, email driven legal processes with a structured system that enables funds lawyers, GPs and LPs to execute complex transactions more efficiently. Navys is focused on real legal workflows, not generic AI tools or document summarisation, and is designed to support production grade, enterprise use cases. Navys is building core infrastructure for how funds legal work is done, with a strong emphasis on execution, clarity and real world impact. Role Summary Navys is seeking an ambitious Front End Engineer to join the team on a full time basis. This role focuses on owning and building the user facing parts of the Navys platform. You will shape how lawyers and fund professionals interact with the product by building responsive, intuitive and reliable interfaces. You will work closely with design, product and backend engineering to deliver high impact features in an evolving and technically ambitious environment. This is not a narrow implementation role. It requires strong ownership, attention to quality, and the ability to translate complex workflows into clear and usable product experiences. Responsibilities Product Delivery and Execution • Build and refine core user interface components using React and TypeScript, • Translate complex legal and operational workflows into clean, intuitive and user friendly interfaces, • Deliver production ready frontend features that meet enterprise quality standards Frontend Architecture and Quality • Build and maintain a scalable frontend architecture in close collaboration with backend and platform engineers, • Own frontend performance, accessibility and reliability across browsers and devices, • Ensure a high standard of frontend quality through testing, review and iteration Engineering Contribution and Collaboration • Work closely with design to deliver production ready interfaces, • Help define and establish frontend best practices, tooling and testing infrastructure, • Collaborate closely with product and engineering to align frontend delivery with broader platform priorities Candidate Profile Essential Requirements • At least 3 years of experience building and shipping modern frontend applications, • Deep proficiency with TypeScript and React in production environments, • Experience working with Azure based infrastructure such as Azure App Services or Azure DevOps, • Strong understanding of component based architecture and frontend state management, • Experience operating in fast paced startup environments with high ownership, • Strong problem solving and analytical skills, • Strong communication and collaboration abilities Desirable Requirements • Experience with frontend testing frameworks such as Jest, Cypress or Playwright, • Familiarity with design systems and component libraries such as Storybook, Chakra UI or MUI, • Experience working on B2B enterprise software or legal tech products, • Understanding of secure frontend development practices, • Strong eye for UX, interaction design and usability What Navys Offers • Competitive salary plus meaningful equity at an early stage, • Ownership of core user facing product experiences, • Direct influence on frontend architecture and engineering standards, • Close collaboration with engineering leadership, product and design, • Opportunity to grow into senior frontend or broader engineering roles as the team scales Equal Opportunity Employer We are committed to fostering a diverse and inclusive workplace. As an equal opportunity employer, we do not discriminate on the basis of age, disability, sex, race, religion or belief, gender reassignment, marriage or civil partnership, pregnancy or maternity, or sexual orientation. All qualified applicants will receive consideration based on individual merit and business needs.

We are seeking an exceptional C++ Engineer to join one of the world's most advanced high-frequency trading firms. This is a rare opportunity to work at the intersection of cutting-edge technology and global financial markets, where performance is measured in nanoseconds and innovation drives competitive advantage. You'll be part of a team that designs and builds ultra-low latency trading systems deployed across global exchanges. Your work will directly impact trading performance, and you'll be empowered to push the boundaries of what's possible in software and hardware optimisation. Key Responsibilities • Architect and implement high-performance C++ systems with extreme latency sensitivity., • Optimise every layer of the stack - from CPU cache and memory allocation to kernel bypass and network I/O., • Collaborate with traders, quants, and infrastructure engineers to deliver robust, scalable, and lightning-fast trading solutions., • Profile, benchmark, and tune systems using advanced tooling and custom diagnostics., • Contribute to the design of proprietary protocols, lock-free data structures, and real-time analytics pipelines. Ideal Candidate • Expert-level proficiency in modern C++, with a deep understanding of low-level systems programming., • Strong grasp of computer architecture, concurrency, and performance engineering., • Experience with kernel bypass technologies (e.g., DPDK, Solarflare/OpenOnload) and high-performance networking., • Familiarity with Linux internals, NUMA, CPU affinity, and custom memory management., • Proven track record of building latency-critical systems in trading, gaming, or telecom environments., • Bonus: Experience with FPGA acceleration, RDMA, or custom NIC firmware. Why Apply? • Work with some of the fastest systems and smartest minds in the industry., • Direct impact on trading performance and strategy execution., • Access to bespoke infrastructure, bleeding-edge hardware, and proprietary tooling., • Culture of excellence: flat structure, minimal bureaucracy, and relentless focus on performance., • Compensation at the top end of the market, with significant upside tied to impact. Apply Now!

As a Senior Cryptography Engineer, you’ll protect NewDay’s payment processing, customer data, and internal systems through robust, scalable cryptographic controls. You’ll design, build, and automate key management, certificate lifecycle, and HSM governance to reduce operational risk and enable secure developer self-service. This role directly supports business-critical platforms, ensuring strong security assurance across financial services at scale while helping shape NewDay’s long-term cryptographic strategy. How you’ll contribute • Key lifecycle tooling: Build, implement, and manage tooling for key generation, distribution, backup, automated rotation, and secure deletion across hybrid cloud environments., • Certificate automation: Develop self-service certificate issuance workflows integrated with CI/CD pipelines; improving self-service coverage., • PKI tooling: Maintain certificate authority infrastructure, trust store management and validation processes., • Integration patterns: Build certificate provisioning patterns for containerised applications, API gateways and service meshes., • Algorithm governance: Support migration away from deprecated algorithms through automation and developer tooling., • Cloud KMS integration: Configure and maintain integrations with Cloud KMS services., • HSM administration: Support hardware security module operations, backup procedures, key management, and disaster recovery., • Infrastructure as code: Implement cryptographic infrastructure using Terraform, CloudFormation and configuration management., • Continuous Improvement: Contributing to improving ways of working in the team. We're looking for these essential skills • Cryptographic depth: 3+ years implementing cryptographic systems; deep understanding of symmetric/asymmetric encryption, digital signatures, key derivation, PKI concepts., • Key management platforms: Hands-on experience of cloud KMS services (e.g. Azure Key Vault, AWS KMS) and/or HSM platforms (e.g. Thales, Entrust, Azure CloudHSM)., • Certificate management: Practical experience with certificate authorities, X.509 certificates, TLS/SSL configuration and automated certificate lifecycle management (e.g. AppViewX/Venafi)., • Good understanding of security and compliance frameworks and standards for cryptography, e.g. PCI-DSS, PCI-PIN, PCI-CPP, NIST, FIPS It’s a plus if you also have these skills • Infrastructure automation: Experience with IaC (Terraform, CloudFormation, Pulumi), configuration management, and CI/CD pipelines (GitHub Actions)., • Programming proficiency: Strong development skills in one or more of: Python, Go, Java, C#; ability to write production-quality automation scripts and tools., • Developer enablement: Experience building internal tools, libraries and documentation for engineering teams., • Legacy migration: Experience modernising cryptographic systems, algorithm migration and technical debt remediation.

Technical Quantitative Developer / Software Engineer with deep Computer Science expertise applied to Python, its libraries and ecosystem as well as professional experience with SDLC tooling, Linux, Docker, and SQL sought to join a specialist London Headquartered Quantitative Hedge Fund. You will join as a more junior member, as part of a small team designing and implementing a central platform for Backtesting, Pricing, Risk and Performance, to be used across all Funds and Investment teams. Finance experience is not an essential criterion. This new, core team collaborate with Quantitative Researchers and Portfolio Managers to design and implement scalable solutions, addressing complex business needs, in particular delivering and maintaining critical components of the Investment Infrastructure, such as the Data Interface Layer, Central Risk Calculations, and Backtesting Frameworks, to be used by diverse Investment teams as part of their daily work. The target architecture will be written in pure Python, with SQL RDBMS, a Dockerised On-Prem RedHat Linux platform. Python is the primarily required skill, however solid professional profiency of building and shipping software in Linux/Docker environments as well as SDLC tooling such as GitLab CI/CD are also required. In return for your Computer Science and Engineer nous, full training on the Quantitative Finance, Hedge Funds and Systematic Investing will be provided. Essential Skills & Experience: • Undergraduate degree in Computer Science, Computing, Software Engineering or similar with top grades from a reputable institution. MSc or possibly PhD level academics in said subject(s) preferred., • Strong Python skills, as per 3+ years of professional experience in a technically and/or scientifically complex and competitive environment., • Proficiency in Linux and Docker including system administration and containerization for deployment and scaling., • Hands-on experience with continuous integration and delivery systems such as Jenkins and GitLab CI/CD and a strong understanding of Software Development Life Cycle (SDLC) best practices., • Knowledge of SQL for database management and query optimization. This is an outstanding opportunity to join a world-class boutique Systematic Investment business, playing a key role in the delivery of a crucial core platform for use by cross-functional teams across multiple investment platforms.

🚀 Senior Backend Python Engineer – London 📍 London · In-person 💰 Very competitive base + equity A well-funded Series A startup in London is building AI agents that help internal teams focus on meaningful work by automating repetitive, admin-heavy finance tasks. These are real products with real users, designed to make work more efficient, less tedious, and more impactful! This is a high-impact role with direct influence on the core backend systems powering the product. The founders have previous multi-million-dollar exits and are building one of the fastest-moving startups in London 🙌 🛠 What You’ll Be Doing • Build core backend services, APIs, and distributed systems in Python, • Design architecture, data flows, and infrastructure foundations, • Own production systems and iterate quickly based on real user feedback, • Work closely with the leadership team on technical direction and product strategy, • Shape backend engineering culture, tooling, and processes as the team scales ⚙️ Tech Stack Python (FastAPI) · PostgreSQL · Event-driven services · Modern AI frameworks & agent-driven systems · Cursor · AI/ML 👀 Who This Is For • Senior backend engineers with 5+ years experience in well-funded, high-growth startups, • People comfortable making high-leverage technical decisions in ambiguous environments, • Engineers passionate about AI that improves workflows and frees teams from repetitive work ❌ Not For • Fully remote candidates, • Early-career engineers or first startup role, • Big-company pace, heavy process, or narrow scope ✨ Why It’s Interesting • High-impact senior role with equity upside, • Work alongside proven founders with serious ambition and execution speed, • Strong investor backing and real runway, • Opportunity to scale backend systems that transform how internal teams work and make finance less tedious If building AI systems that help people spend less time on repetitive tasks and more time on meaningful work sounds exciting - pop us your CV and we'll be in touch 🙌

AI Engineer – LLMs / Applied AI London (onsite) Salary up to £180k + equity We’re working with a fast-growing AI startup building proprietary algorithms that are redefining how complex knowledge work is done. With strong revenue traction, top-tier investors, and a deeply technical founding team, this is a chance to help build a category-defining company from the inside. What you’ll be responsible for: • Designing, building, and deploying production-grade AI algorithms that materially improve output quality in real-world applications, • Owning state-of-the-art evaluation pipelines to benchmark models, guide R&D, and support rapid iteration, • Researching and implementing advanced prompt engineering and LLM interaction techniques, • Working across the stack (primarily Python, but also Postgres and React) to ensure research translates cleanly into customer-facing product, • Moving fast from idea to production, with direct customer feedback loops The environment: • High-ownership, low-ego team of AI researchers and elite engineers, • Strong commercial traction with hundreds of enterprise users globally, • Recently closed a major funding round from top-tier investors, • Ambitious, execution-focused culture with very high engineering standards What we’re looking for: Must-haves: • Deep Python expertise and experience shipping AI systems into production, • Hands-on experience with LLMs, prompt engineering, and modern model architectures, • Proven track record building evaluation frameworks or ML pipelines used in live environments, • Comfort working end-to-end across the stack, • Clear communicator who can reason about complex technical trade-offs, • 4+ years experience total Nice-to-haves: • Publications at top ML conferences (NeurIPS, ICLR, ICML), • Experience with LLM evaluation tooling (e.g. OpenAI Evals or similar), • Strong GitHub presence or technically ambitious side projects What’s on offer: • Salary up to £180k + meaningful equity, • Work directly with a highly technical founding team, • Visa sponsorship and private medical insurance, • London-based, high-performance office environment with meals provided, • Opportunity to help shape a product and company with genuine breakout potential Apply below!

About Sownd Affects Sownd Affects is developing the world's first Audio Inclusivity Certification Standard. Built on the insight that 30 percent of the population are noise sensitive, we are on a mission to change how people socialise and to inspire venues to build acoustically enhanced spaces that make socialising more enjoyable for everyone, especially the noise sensitive. Our work combines acoustics expertise, behavioural insight and modern software systems to create a new global standard for sound in social spaces. About the Role We are seeking a technically skilled and pragmatic Full Stack Developer to architect and implement the next major phase of our internal operations system. This Back Office platform is critical to the rollout of our audio inclusivity certification and must be reliable, scalable and easy for our team to use. This is a project based contract. We will define a clear set of deliverables and agree a fixed project fee. You will work on your own schedule, with the expectation of being available for at least 2 hours between 10am and 4pm from Monday to Friday for questions or unblockers. Once delivered, there is likely to be ongoing maintenance and iteration work as the product grows. About the Team You Will Work With You will work directly with the founders and our Head of Product. We are a small, fast moving team of experienced tech entrepreneurs who work hands on and are passionate about using AI tools to increase speed and quality across the business. You will also have access to a CTO for occasional guidance, though you will own the build of this Back Office system. This is a high trust, low bureaucracy environment where clarity, autonomy and fast decision making are valued. Key Responsibilities • Architect and implement a Back Office web application using React Admin, • Integrate the Back Office with our main website and ensure reliable backend logic and data flow, • Set up and manage a Postgres database hosted on Supabase for venues, clients, acoustic measurements and certification data, • Define and document a clear and scalable data model that supports all certification and reporting requirements, • Build workflows for ingesting and transforming acoustic engineer reports in PDF or structured formats, • Implement an easy to use data upload mechanism for ongoing ingestion of client information and acoustic measurements, • Implement QR code generation linked to public certification pages, • Ensure the architecture is clean, maintainable and aligned with the required tech stack, • Produce clear documentation and a full handover so the internal team can operate the system confidently, • TypeScript, • Node.js, • Next.js, • React Admin, • PostgreSQL, • Prisma ORM, • Supabase, • TailwindCSS, • Monorepos using tools like TurboRepo or NxRequired Skills and Experience, • Proficiency with TypeScript, Node.js and Next.js, • Experience with relational databases and Prisma ORM, • Experience integrating APIs and building data transformation workflows, • Comfortable working with admin tooling and Back Office style systems, • Ability to work independently with clear communication and fast problem solving, • Pragmatic and comfortable operating in a startup environmentNice to Have, • Experience working with Supabase, • QR code generation and public routing logic, • Knowledge of hosting platforms like Vercel or AWS, • Experience in digital certification, measurement workflows or IoT style integrations, • Experience building admin tools using React Admin or similar Interview Process • Send your CV to careers(at)sownd.co.uk and a short message telling us why you want to work with us and summarising your experience with the listed tech stack, • Short interview, • Project based contract with an agreed fixed fee, • Work on your own schedule with at least 2 hours available between 10am and 4pm, Monday to Friday, • Likely ongoing work as the system grows, • Immediate start and rapid delivery expected, • Remote first, • No recruiters, please

C++ • Python • OpenGL • Blender • Desktop Applications • Games Pipelines London preferred | Full-time | Visa sponsorship available Our Vision From blockbuster films and AAA games to immersive experiences, the demand for photoreal 3D content has never been higher - but creating photorealistic assets is slow, expensive, and manual with no current scalable solution available. At M-XR, our mission is to democratize the creation of high-quality 3D assets and empower brands, studios, and creators to build infinite photo-real 3D experiences. Our proprietary technology Marso allows anyone to capture real-world objects into production-ready photorealistic digital twins with unmatched material (PBR) accuracy - enabling the first real-world PBR capture pipeline that can operate anywhere. Marso is trusted by the most demanding studios in film and gaming. We see the future of 3D as AI-assisted, and we’re building the tech to make that happen. We are creating the world’s highest quality and most comprehensive 3D-PBR data-set and training the next generation of AI models to assist artist workflows. See the result yourself Passcode: scaneverything About the role ✨ We are looking for a Senior Software Engineer to own the 3D asset processing and rendering infrastructure in Marso Measure, our desktop material capture application for Windows. You'll work across the full product from 3D asset support, geometry processing, OpenGL rendering, Blender integration, backend connectivity, to Windows releases. At M-XR we developed Marso Measure as a way to capture real-world PBR material data alongside conventional photogrammetry from simple flash photography. Marso is now actively being used by leading studios, brands & museums to digitize previously unobtainable assets at scale. This gives us one of the most unique and physically accurate 3D datasets in the world and with this data we are developing frontier AI models that will enable new ways to create physically realistic content - at high fidelity and scale. You will be a central part of the core engineering team at a scaling start-up that is re-imagining how content is created for photo-real AAA games and real-time experiences. This role is perfect for a C++ and Python expert that is passionate about 3D graphics, real-time rendering, and VFX/game workflows and wants to work at a startup connecting frontier AI to 3D asset creation. Where you will have impact 🚀 As a Senior Software Engineer you will own the 3D rendering and asset processing systems that power our material estimation technology and ship Marso Measure as the industry standard for material capture in high-end photogrammetry workflows. You will: • Build and scale Marso Measure as a central member of the core engineering team, driving it from internal tool to production-ready desktop application., • Architect and maintain the geometry and rendering modules that underpin our material estimation technology across product and research teams., • Deliver high-performance systems from raw image processing through to OpenGL-based rendering, optimized for high-resolution assets and production workflows. What you will do You'll work as part of the core team establishing Marso Measure as the industry standard for material capture in photogrammetry. Core Ownership • Own the end-to-end 3D geometry and rendering modules and pipelines across product, • Develop and maintain high-performance C++ modules for 3D asset processing, OpenGL rendering, and mesh-camera visibility calculations, • Build Python services for pipeline orchestration, automation, and integration with ML models Cross-Functional Collaboration • Work closely with ML researchers to integrate material estimation models into production pipelines, • Collaborate with the Data Platform team to ensure processing outputs meet quality requirements for training data, • Collaborate across Data and ML and Product teams to deliver and integrate 3D format support, 3D transformations, and render systems. Production & Release • Own the Windows release cycle for core modules, ensuring stability, performance, and quality, • Establish best practices for graphics programming, testing, and performance optimization, • Manage build systems and packaging for desktop distribution What we are looking for Must have • 5+ years of professional C++ development with focus on graphics, rendering, or high-performance computing, • Strong Python skills with experience building production services and tooling, • 3D graphics expertise: OpenGL, shader programming, geometry processing, UV mapping, • Cross-platform build systems: CMake, package management, • Product delivery experience: shipping desktop applications or production tools to end users, • Systems thinking: understanding of performance optimization, memory management, and architectural trade-offs Strong Plus • Experience with Blender Python API or other DCC tool integration, • Knowledge of PBR rendering, material systems, and game engine workflows (Unity/Unreal), • Photogrammetry or computer vision pipeline experience, • Windows desktop development: Electron, IPC, installer creation, • Familiarity with 3D file formats (Alembic, USD, glTF, FBX), • Background in VFX, games, or virtual production workflows, • Experience with ML pipeline integration (PyTorch, model inference optimization) What we offer • The chance to shape the future of 3D content creation in a fast-moving startup, • Direct contact & close relationships with some of the biggest game & film studios globally using M-XR's technology, • Work with passionate engineers, artists, and researchers at the frontier of graphics & AI, • Unique opportunities for professional growth, autonomy, and leadership, • Competitive salary and equity, • Flexible hybrid working, • Visa sponsorship for international candidates We look forward to your application! Best, M-XR Team

Staff Product Engineer London | Hybrid | Full-time Salary: Up to £125,000 We’re partnering with a high-growth, AI-native consumer technology start-up that’s tackling a large, complex and highly visible everyday problem at national scale. They’re looking for a Staff Product Engineer to operate at the intersection of product, engineering and systems design, owning a small number of high-impact initiatives that materially change how customers experience the product and how the platform scales. As a Staff Product Engineer, you’ll lead complex, cross-cutting initiatives from problem definition through to production, working closely with product, operations and leadership. You’ll focus on turning ambiguous, real-world problems into simple, reliable systems, shipping incrementally and measuring impact continuously. You’ll also help define the technical patterns, primitives and “paved roads” that enable a small, fast-moving engineering team to scale effectively. This role reports directly into senior technical leadership and has clear visibility at exec level. Key Responsibilities • Own and deliver a small number of high-leverage, business-critical initiatives each year, • Translate complex, fuzzy problems into clear technical and product plans, • Design and ship end-to-end solutions in small, frequent production releases, • Act as a domain owner across one or more core areas (e.g. frontend, workflows, infrastructure, data or AI-driven systems), • Define reusable patterns, libraries and workflows that improve reliability, speed and clarity across teams, • Mentor and unblock senior and emerging engineers, raising the technical bar across the organisation, • Produce clear written documentation to align engineering, product and operations Tech Environment • Full-stack TypeScript, React, Postgres, • Modern cloud infrastructure (AWS, Terraform), • Strong observability and monitoring practices, • Data platforms and analytics tooling What They’re Looking For • Strong experience operating at Staff / Principal / Lead Engineer level, • Proven ability to lead cross-team, ambiguous initiatives that move core metrics, • Deep product mindset alongside excellent software engineering fundamentals, • Comfort designing systems, workflows and failure modes — not just features, • Enjoys mentoring, improving how teams work, and raising overall engineering effectiveness, • Happy staying hands-on in code while influencing technical direction, • Prefers smaller, high-agency teams over large, process-heavy environments Benefits • Competitive salary + meaningful equity, • 33 days holiday (including bank holidays), • Health & dental cash plans + EAP, • Travel benefits (cycle to work, season ticket loans), • High-quality equipment and learning budget, • Well-supported, collaborative office environment

Python Software Engineer – Visual Quality / Media – London Hybrid – Outside IR35 A London-based technology company is seeking a capable Python Developer to support development and maintenance of an in-house quality test framework used to validate next-generation video codec technology. Initial 3-month contract. Key Requirements • Strong Python development skills (multithreaded, production code), • Linux development experience, • Familiarity with REST/HTTP/JSON tooling and containers (e.g., Docker), • Experience in test frameworks, automation, or media/codec workflows beneficial Contract Details • Duration: 3 months (extensions possible), • Location: London, 2+ days onsite per week, • Status: Outside IR35 possible, • Rate: Market competitive, • Start: ASAP / short notice This role suits a pragmatic Python developer comfortable working in a technical, fast-moving media technology environment. Excellent opportunity to contribute to high-performance software used by major industry customers. The Software Engineer must have full UK working rights and be able to attend the office in London at least 2 days per week If interested, click apply or please get in touch for further details.

Java Engineer - Java Developer - Software Engineer - PostGres - Kubernetes - Kafka - TDD - 6-Month Contract - Hybrid (2 days on site, London) - Day Rate: Up to £650 (Inside IR35) Join a high-performing engineering team working on large-scale, high-availability systems used by millions. This role offers the chance to build and enhance complex backend services in a modern, cloud-native environment. What you'll be doing: * Designing and developing performant, scalable backend systems using Java (up to Java 21) • Working with PostGres Building microservices with Spring Boot and related frameworks * Developing and maintaining RESTful APIs and event-driven systems * Writing clean, testable code and following TDD principles with a strong focus on unit testing * Working closely with DevOps, Product, and QA teams to deliver high-quality solutions * Deploying and supporting services in AWS with tools such as Lambda, ECS, S3, and CloudFormation, along with Kubernetes for container orchestration What we're looking for (Requirements): * Strong commercial experience with Java and Spring Boot * Proven experience designing and maintaining microservices * Hands-on experience working with PostGres * Background working in cloud environments, ideally AWS * Knowledge of Kubernetes and containerised systems * Familiarity with CI/CD pipelines and automation tooling * Strong understanding of software testing, TDD, and unit testing * Comfortable working within Agile teams * Clear communication skills and the ability to collaborate effectively in a hybrid setup If you are an experienced Java Engineer keen to join a modern engineering environment and work on systems that operate at scale, please get in touch for more information.

Backend Engineer: Distributed Systems Specialist Location: New York or London (Hybrid) Salary: $300,000 – $350,000 USD About Us We’re a stealth-mode infrastructure venture building next-gen primitives for decentralized execution. Our mission: rethink how distributed systems scale, sync, and self-heal — with a focus on performance, modularity, and cryptographic integrity. Our team includes protocol veterans, systems engineers, and cryptography researchers pushing the limits of what’s possible in Web3 infra. The Role We’re hiring a Backend Engineer with deep distributed systems expertise to help architect and optimize our core infrastructure. You’ll work on low-latency, high-throughput systems that power decentralized coordination, execution, and data integrity across global nodes. What You’ll Build • Core backend services for distributed coordination and execution, • Fault-tolerant systems that scale across thousands of nodes, • Performance-critical modules for consensus, networking, and data pipelines, • Internal tooling for observability, testing, and simulation, • Contributions to open-source infra and protocol-level primitives What You Bring • 5+ years of backend engineering experience in systems-level environments, • Deep knowledge of distributed systems, fault tolerance, and consensus mechanisms, • Strong command of Rust, Go, or C++ (Rust preferred), • Experience with container orchestration, microservices, and cloud-native infra, • Familiarity with blockchain, cryptographic protocols, or decentralized coordination Bonus Points • Experience in zero-knowledge systems, MPC, or verifiable computation, • Contributions to open-source infra projects, • Prior work in Layer 1 or Layer 2 blockchain development Why Join • Stealth-stage impact with protocol-grade ownership, • Competitive comp: $300k–$350k base + equity, • Hybrid flexibility in NYC or London, • Work with a team of deep systems thinkers and protocol engineers

Job Title: Principal DevOps Engineer - AWS/Terraform/Kubernetes Type: Permanent Location: Fully remote (must be UK-based) Salary: £90-110K DOE Our client are growing their team and are looking for a Principal DevOps Engineer to contribute to the development and maintenance of our cloud infrastructure, help with the definition of best practices for infrastructure management and to support development processes with CI/CD. As a Principal DevOps Engineer, you will play a crucial role in ensuring the reliability, scalability, and security of their cloud-based systems. Responsibilities: • Design, build, and maintain the infrastructure and automation tools necessary for efficient and reliable deployment, operation, and monitoring of our cloud-based applications., • Collaborate with development and operations teams to define and implement best practices for software delivery, continuous integration, and continuous deployment (CI/CD)., • Develop and maintain scalable and efficient infrastructure using AWS services such as EC2, S3, RDS, and CloudFormation., • Deploy and manage containerized applications using Kubernetes for orchestration and management., • Implement and maintain infrastructure as code using tools like Terraform, ensuring consistency and reproducibility across environments., • Monitor and troubleshoot system performance, identifying and resolving issues to ensure high availability and optimal performance., • Collaborate with cross-functional teams to identify opportunities for automation, streamlining workflows, and improving efficiency., • Stay up-to-date with the latest trends and technologies in the DevOps space, making recommendations for adoption based on industry best practices. Requirements: • Proven experience as a Senior DevOps Engineer or similar role., • Strong knowledge of Amazon Web Services (AWS), including EC2, S3, RDS, CloudFormation, and IAM., • Extensive Kubernetes experience - live/in-production Kubernetes specifically., • Proficiency in infrastructure as code tools such as Terraform, Ansible, or CloudFormation., • Solid understanding of CI/CD concepts and experience implementing CI/CD pipelines using tools like Jenkins, GitLab CI/CD, or AWS CodePipeline., • Strong scripting skills (e.g., Bash, Python, or PowerShell) for automation and tooling., • Familiarity with monitoring and log management tools (e.g., Prometheus, Grafana, ELK stack)., • Knowledge of networking concepts and security best practices., • Excellent problem-solving and troubleshooting skills., • Strong communication and collaboration abilities, with a passion for working in a team-oriented environment. This is just a snapshot of our client's requirement. Get in touch for a full job spec and details on the position. We will be assisting our client in interviewing and appointing the best candidate ASAP. Apply without delay for consideration.

Manufacturing Process Engineer (NPI Projects) London (Greenwich) | Up to circa £42 to 47.50 per hour (Umbrella) | Long-Term Contract About the Role We’re looking for a Manufacturing Process Engineer to help shape the future of assembly processes. In this role, you’ll design and implement lean improvements that make production safer, more efficient, and more sustainable. You’ll work closely with R&D, support projects from concept through to delivery, and ensure processes meet the highest standards of quality and compliance. What’s in it for you? • Competitive pay and a secure long-term contract, • A collaborative and supportive team culture, • The chance to make a real impact on products that support critical global infrastructure, • Work with cutting-edge technologies that are making a difference worldwide What you’ll be doing • Design & Improve: Create lean process improvements for tools, equipment, and assembly methods, • Deliver Change: Manage projects from concept to handover, keeping efficiency and timelines on track, • Validate & Test: Ensure new tooling and processes are reliable and compliant before production, • Keep it Safe: Lead PUWER assessments, risk analysis, and safety compliance, • Collaborate: Partner with R&D, training schools, and wider teams to support innovation and development, • Measure & Monitor: Define KPIs, track progress, and ensure budgets and quality targets are met What we’re looking for • A degree in Mechanical, Industrial, Production, or related Engineering field, • Hands-on experience in manufacturing or technical environments, • Knowledge of ISO9001/TL9000, Lean, Six Sigma, and regulated industries, • A methodical problem-solver with excellent organisational skills, • Willingness to learn systems such as SAP and sDMS How to apply If this sounds like the right role for you, we’d love to hear from you. Please apply via LinkedIn.