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As a Full Stack Developer & Power Platform Engineer you will design, build, and enhance applications that support BCG’s internal business operations. Collaborate closely with product owners, UX, analysts, and engineering teams in Agile sprints. You will work within a dynamic engineering team acros

Reward Gateway | Edenred, is a global leader in benefits and employee engagement. We help businesses attract, engage, and retain top talent through strategic rewards, recognition, and well-being solutions. Guided by our shared missions of ‘Making the World a Better Place to Work’ and ‘Enriching Connections, For Good’, we are committed to transforming workplaces and improving people’s daily lives. As we continue to expand our business, we have an opportunity for a hands-on AI Engineer who is excited about turning real-world challenges into smart, scalable solutions. You will work with the latest third‑party AI services, build streamlined workflows and craft high‑impact prompts that boost our internal tools, speed up developer productivity and elevate the customer experience. You will work closely with Product, Operations, and Engineering teams to turn ideas into practical solutions and contribute to improvements across the platform. Key Responsibilities • Build and deliver production‑ready AI and Generative AI solutions using LLMs, RAG architectures, agents, and responsible AI practices., • Use AI coding assistants such as Cursor, GitHub Copilot, and Claude Code to accelerate development while maintaining ownership of outcomes and documenting best practices and repeatable patterns., • Manage cloud infrastructure and platform operations, including AWS, Kubernetes, CI/CD pipelines, Terraform, monitoring, performance optimisation, and cost control., • Design, develop, and maintain backend services in Python, and contribute to React, TypeScript, and PHP codebases when required., • Lead evaluation and iteration cycles, including defining and tracking offline and online metrics, running A/B tests, meeting latency and cost targets, implementing human‑in‑the‑loop validation, and ensuring robust observability., • Implement and maintain retrieval pipelines using embeddings, vector databases, hybrid search methods, and effective chunking strategies., • Collaborate closely with Product using a working‑backwards approach, producing technical designs, breaking down work, and delivering iteratively., • Improve internal AI development tooling, including shared libraries, SDKs, and reference implementations for RAG, tracing, prompt management, and evaluation., • Contribute to internal enablement and capability‑building activities across the organisation., • Partner with Security, Legal, and Data teams to define AI policies, review risks, and ensure privacy, PII protection, and regulatory compliance., • Mentor peers, conduct code reviews, and share knowledge to elevate engineering standards across the organisation. Skills, Knowledge and Expertise • Proven experience in shipping production‑grade AI solutions., • Applied AI expertise across LLMs, RAG, agentic workflows, prompt engineering, embeddings, vector databases, hybrid search techniques, and effective chunking strategies., • Strong Python as a primary language, with solid testing practices and CI/CD experience; able to contribute when needed in React, TypeScript, and PHP or Node.js., • Cloud and platform engineering skills, including AWS, Kubernetes, Docker, infrastructure as code, and modern observability tooling., • Hands‑on experience with leading LLM providers such as Anthropic, Claude and OpenAI, with the ability to evaluate additional model providers and approaches., • Familiarity with LLM tooling ecosystems such as LangChain or LlamaIndex, agentic AI frameworks, vector stores, tracing and logging tools, prompt management platforms, and evaluation frameworks., • Strong data engineering capabilities, including dataset creation and validation, ETL development, SQL schema design, and the definition and tracking of meaningful product and model metrics., • Solid understanding of ML fundamentals and experimentation, including metric design, error analysis, model selection, and performance tuning., • A strong security and governance mindset, with the ability to communicate clearly with both technical and non‑technical audiences, and a high level of ownership from discovery through production and iterative improvement. The Interview Process • Online interview with the Talent Partner and the Director of AI Engineering, • Technical interview with Director of AI Engineering, VP of Product Engineering, and VP of Product At Reward Gateway | Edenred, we are committed to ensuring an inclusive and accessible recruitment process for all candidates. If you have any specific requirements or need reasonable adjustments at any stage of the recruitment journey, please let your Talent Acquisition Partner know. Your needs are important to us, and we want to ensure an equitable experience for every candidate.

The Role You'll join the Pharosyn team as an early hire — directly shaping the entire software stack. We are hiring founding engineers with different strengths; you are not expected to be senior across all three domains. AI Engineering -⁠ ⁠Prompt engineering and LLM orchestration -⁠ ⁠Building evaluation frameworks and feedback loops -⁠ ⁠Deploying and operating AI systems reliably in production Data Engineering -⁠ ⁠Ingesting data from heterogeneous sources (APIs, RSS, web scraping) -⁠ ⁠Data modelling, pipelines, and transformation -⁠ ⁠PostgreSQL, vector databases, and medallion-style layering (raw → cleaned → served) Enterprise Infrastructure -⁠ ⁠Multi-tenant SaaS architecture -⁠ ⁠Cloud deployment -⁠ ⁠Security, authentication flows, and production reliability You should demonstrate applied excellence in at least one of these areas, with demonstrated interest across multiple. Core Engineering Philosophy We care deeply about leverage as an engineering principle. We want you to help us build the system that builds the system: -⁠ ⁠The development environment, tooling, and workflows that let a small team move extremely fast without breaking production -⁠ ⁠Tight feedback loops between customer usage, observability, evaluation, and execution (tests, CI, code review) -⁠ ⁠Early architectural choices that scale to a $100m+ product with a lean team -⁠ ⁠Treating developer productivity, reliability, and iteration speed as first-class product concerns You Must -⁠ ⁠Have demonstrated ability to build and ship real products (e.g., shipped SaaS, production pipelines, open-source with users, meaningful side project, startup experience) - show us what you’ve made -⁠ ⁠Have strong core engineering fundamentals and the ability to learn new languages quickly (our current stack includes TypeScript/React, Python, and PostgreSQL) -⁠ ⁠Already use AI coding tools (e.g. Cursor, Claude Code, Copilot) to materially increase output -⁠ ⁠Thrive being given problems and architecting solutions, not waiting for project specs — you should be the best person you know at architecting brilliant solutions to customer problems -⁠ ⁠Bonus points for experience in healthcare, biotech or regulatory data We are primarily targeting exceptional early-career engineers and unusually strong senior engineers who want real ownership at the earliest stage What We Offer -⁠ ⁠£100–130k base salary as a baseline, with flexibility for candidates who bring exceptional depth in one of our core domains. For outstanding senior engineers with relevant experience building and deploying complex systems with enterprise customers, we are open to going meaningfully higher. -⁠ ⁠Meaningful equity — this is a true founding engineer role -⁠ ⁠Direct collaboration with the founders on product and strategy -⁠ ⁠Travel to the US to work onsite with enterprise clients -⁠ ⁠The chance to define the technical culture and architecture of the company from first principles Expectations This is an early-stage startup in a competitive market. The work is demanding and fast-moving: -⁠ ⁠High commitment - this is not a typical 9–6 role. The pace is intense and sustained effort is expected, especially around customer delivery and critical deadlines. -⁠ ⁠Present in the London office (in-person, not remote) -⁠ ⁠High autonomy, high accountability -⁠ ⁠Speed and quality - speed is essential, compromise when necessary but don’t hide behind speed as an excuse for poor quality Values -⁠ ⁠Operational excellence - Move fast, maintain high standards, and take responsibility for the outcome. -⁠ ⁠Ownership - If it’s in your orbit, you own it end-to-end. -⁠ ⁠Intellectual honesty - Say what you think, challenge ideas openly -⁠ ⁠Practical problem-solving - Find a way forward, use the right tools, and ask for help when needed. -⁠ ⁠Continual learning - Keep getting better, update your skills, and adapt as the problem space evolves and transfer those learnings into the product.

Role : Lead Engineer (I) Reporting To : Chief Technology Officer Salary : £100,000 - £120,000 dependent on experience Working Location : Hybrid/ London (2 days a week on site at our Old Street office) PropTech | SaaS | Software Development 🏢 About Searchland Searchland is a high-growth, B2B prop-tech company transforming how businesses and individuals access and leverage property data. Our platform empowers property developers, land agents, architects, and planners with real-time insights, helping them make smarter, data-driven decisions when acquiring and developing land. In just five years, we’ve built one of the UK’s most advanced property data pipelines, integrating thousands of data sources and processing terabytes of information with less than 24-hour latency. Our cutting-edge platform is shaping the future of property intelligence. About The Role We’re looking for a Lead Full-Stack Engineer who will combine deep technical ability with strong leadership and architectural oversight. You will drive technical excellence across the organisation, mentor and develop engineers, and help shape the long-term direction of Searchland’s platform. This is a hands-on role - expect to contribute to the codebase daily - but also a highly strategic one. You will influence product direction through technical insight, guide multidisciplinary squads (engineering, data, design), and help build and scale a high-performing engineering organisation. 🎯 What You’ll Do • Technical Leadership & Architecture, • Provide architectural oversight across frontend, backend, data infrastructure, and platform components, • Set engineering standards and champion best practices in reliability, scalability, and maintainability, • Lead complex technical design discussions, ensuring trade-offs between speed, scope, and scale are well balanced, • Shape Searchland’s technical roadmap in partnership with product and data leaders, • Team Leadership & Mentorship, • Mentor senior and mid-level engineers, supporting growth through coaching, pairing, and design reviews, • Support multidisciplinary collaboration across data, design, and product teams, • Delivery & Hands-On Engineering, • Lead by example with high-quality contributions across the full stack, • Develop performant, accessible front-end features using React (Vite) + Tailwind, • Design and ship scalable APIs using Node.js, Express, and tRPC, • Maintain and improve PostgresQL database and query performance, • Work closely with our data team to evolve Elasticsearch-driven architectures, • Own delivery of complex projects from discovery through deployment and monitoring, • Cross-Functional Impact, • Translate complex technical challenges into clear, actionable insights for non-technical stakeholders, • Proactively identify opportunities to improve product performance, reliability, and developer experience 🌟 You Are An experienced engineer who has led teams or initiatives and thrives on pairing technical depth with leadership impact. You think holistically - systems, teams, product - and you influence through clarity, pragmatism, and strong delivery instincts. You likely bring: • A proven track record leading engineering initiatives or teams in a high-growth environment, • Strong communication skills and the ability to influence product direction through technical framing, • Experience mentoring engineers and helping teams deliver high-quality software at pace, • Comfort working with data engineers, designers, and product managers in multidisciplinary squads, • A proactive, ownership-driven mindset 🎯 Essential Experience • Right to work in the UK, • 7+ years in software engineering with at least 2–3 years in a lead, staff, or senior-plus role, • Demonstrable experience building and scaling SaaS platforms, • Experience leading technical architecture or system design initiatives, • Frontend: React (Vite), Tailwind, • Backend: Node.js, Express, tRPC, • Databases: PostgreSQL, Elasticsearch ➕ Desired Experience • Working in PropTech or data-heavy product environments, • Prior experience building or scaling engineering teams, • Familiarity with UK planning, property, or geospatial data 🤝 Interview Process • Initial introductory call with our HR Team, • Pre prepared technical task (React + Tailwind + tRPC + PostgreSQL) with a walkthrough & system design interview with a Senior Engineer, • Final interview with the Chief Technology Officer 🌟 Why Join Us? • Flexibility: Hybrid working with two days in our Old Street office, • Wellbeing & balance: 25 days holiday + bank holidays, your birthday off, Christmas office shutdown, and a HealthShield employee cash plan including dental, • Growth & development: Learn across onboarding, customer engagement, and project work, with mentoring and clear opportunities to progress in SaaS., • Tools & support: A MacBook and contribution to a home office setup, EMI scheme, and £500 per year personal growth fund., • Great culture: Free lunches and team socials (bake-offs, 3 Peaks challenge, staycations, holidays abroad when targets are hit) 🌍 Our Commitment to Inclusion We are committed to creating an inclusive, diverse workplace where every team member feels valued, heard, and empowered. If you need any accommodations during the recruitment process, we are here to support you. We welcome applications from all backgrounds, regardless of race, ethnicity, gender, sexual orientation, disability, age, religion, or any other characteristic. If you require any adjustments during the recruitment process, please let us know—we are happy to support you.

Backend Engineer (AI Platform) - London £80k–£100k + EMI equity About the Role We’re hiring a Backend Engineer to build the core infrastructure behind Revax’s AI-native platform for professional services. You’ll design, optimise, and scale the systems that power multi-agent drafting, knowledge graphs, and auditable AI workflows used by accountants, tax advisors, and consultants at leading firms. This is not a “ticket-taking” role -you’ll work directly with the founders, own critical backend services end-to-end, and help define how AI systems are built responsibly in regulated domains. If you enjoy designing clean APIs, scaling Python services, and building systems that actually ship to paying customers, this role is for you. Compensation: £80,000–£100,000 base + EMI equity Location: London About Revax Revax is building a new class of AI-native software for tax advisory firms. Today, professional services teams spend countless hours drafting, reviewing, and re-drafting work - constrained by fragmented knowledge, manual workflows, and brittle tooling. We turn a firm’s own expertise into structured, auditable, AI-powered systems that draft, analyse, and explain deliverables with full provenance. We’re a fast-moving, well-funded startup backed by leading angels, already working with major firms, and building at the intersection of AI agents, knowledge graphs, and real-world enterprise workflows. What You’ll DoBuild & own core backend systems · Build and optimise databases for complex, real-world data · Design and implement APIs using FastAPI for AI workflows and product features · Build and scale LangGraph-based multi-agent systems with checkpointing, retries, and observability · Integrate and scale vector search, knowledge graphs (Neo4j), and associated retrieval pipelines into production services · Deploy and operate GPU-backed services for AI workloads (e.g. inference, embeddings, or agent pipelines) in production Scale & operate production infrastructure · Deploy services on GCP (Cloud Run / GKE) or equivalent cloud infrastructure · Improve performance, reliability, and cost efficiency (latency, throughput, retries, backoffs) · Implement security-first patterns: auth flows, service-to-service auth, IAM, and access controls · Help prepare the platform for enterprise customers (SSO, auditability, compliance ready patterns) Collaborate closely with founders & product · Shape system architecture and API design alongside full-stack and ML engineers · Translate ambiguous product ideas into robust backend implementations · Iterate quickly based on real customer usage and feedback What We’re Looking For Essential · 2-3 years building backend systems for real users · Production experience with FastAPI (or similar modern Python frameworks) · Solid understanding of API design, PostgreSQL, and distributed systems fundamentals · Experience deploying and operating services on cloud infrastructure (GCP, AWS, and Azure) · High ownership mindset: you care deeply about reliability, correctness, and outcomes Strong Plus · Experience with LangGraph, RAG pipelines, vector databases, or knowledge graphs · Familiarity with Neo4j or graph-based data modelling · Experience working on AI-native or agentic systems · Comfort working in early-stage startups with ambiguity and speed · Experience deploying and working with GPU services for AI workloads Bonus · Exposure to professional services, finance, tax, or regulated workflows · You actively use modern AI coding tools (Cursor, Claude Code, etc.) · Strong instincts for developer experience and internal tooling Why Revax · Real ownership over core backend infrastructure · Work directly with founders on high-impact technical decisions · AI-native product with real customers and immediate feedback · Modern stack: Python, FastAPI, LangGraph, Postgres, Supabase, Neo4j, GCP · Meaningful early-stage equity: we hire owners, not passengers · A lean, low-ego, high drive team that ships fast and cares about their work Practical details · London based (strong preference for in office collaboration) · Visa sponsorship available

Go-Lang Backend Developer - Inside IR35 - RemoteAbout the Role We are looking for an experienced Go Developer who is excited about working at the frontier of AI-assisted software development. This role is ideal for engineers who actively use AI coding tools and are comfortable building software in an environment where the development process evolves rapidly. Our team builds systems in a modern AI-native workflow, where tools like Claude and Cursor are core parts of the development environment. You will work on new products in a space that is changing every day, experimenting with emerging capabilities in AI to accelerate development and create better software. Being part of this team means staying at the cutting edge of AI, continuously learning about the latest breakthroughs, tools, and techniques shaping the future of engineering. Key Responsibilities * Design, build, and maintain backend services using Go (Golang). * Develop scalable systems, APIs, and infrastructure that support AI-enabled products. * Work within an AI-augmented development workflow, leveraging tools such as Claude and Cursor for coding, debugging, and ideation. * Rapidly prototype and iterate in a fast-moving environment where new technologies emerge frequently. * Collaborate closely with engineers, AI specialists, and product teams to deliver innovative solutions. * Evaluate and integrate new AI tools and frameworks that improve engineering productivity. Requirements * Strong professional experience developing software in Go (Golang). * Experience working with AI-assisted coding tools or modern AI development workflows. * Comfortable using tools like Claude, Cursor, or similar AI-driven coding environments. * Solid understanding of backend architecture, APIs, and distributed systems. * Ability to thrive in a fast-moving, experimental environment where technology evolves quickly. * Strong problem-solving skills and a passion for learning new tools and techniques. Nice to Have * Experience building developer tools, AI infrastructure, or coding platforms. * Familiarity with LLM APIs and AI model integration. * Experience with cloud platforms and containerized environments. * Interest in AI-native software engineering workflows. To apply for this role please submit your CV or contact Dillon Blackburn on or at . Tenth Revolution Group are the go-to recruiter for Data & AI roles in the UK offering more opportunities across the country than any other recruitment agency. We're the proud sponsor and supporter of SQLBits, Power Platform World Tour, and the London Fabric User Group. We are the global leaders in Data & AI recruitment.

As a Software Team Lead, you will act as a Lead Technologist and work hand in hand with the engineering and product teams, leading the design and development. SENIOR SOFTWARE ENGINEER / SENIOR SOFTWARE DEVELOPER / LEAD SOFTWARE ENGINEER / JAVA DEVELOPER / JAVA ENGINEER / LEAD SOFTWARE DEVELOPER / SE

The Senior Developer will work closely with other members of the team (designers, product owners, business analysts and developers) to deliver excellent experiences for their key clients. A Senior Developer is urgently required to join the team, to work as part of the Tax technology team to develop

Full Stack Developer X2 (Mid-Level – React, Node) – Product Development (Remote, UK-based). Full Stack Software Developer required to join our client’s growing Product Development team. Collaborate closely with other developers through paired or mob programming.

We are seeking a skilled Java Developer to join our engineering team and contribute to the design, development, and maintenance of high-quality, scalable software solutions. You will work closely with product owners, architects, QA engineers, and other developers to deliver robust, secure, and high-

Senior Full-Stack Engineer / Software Developer / JavaScript Engineer. You’re a thoughtful, solutions-driven engineer who cares about architecture, performance, scalability, and long-term product impact. You’ll join a small, cross-functional team spanning product, design, research, engineering,

Head of Applications £130K UK - Fully remote Excited by the challenge of leading global engineering teams at a fast-growing cybersecurity technology company? We're looking for a Head of Applications to lead a globally distributed Application Technology team responsible for building and scaling the customer-facing systems that power a real-time offensive security platform used by enterprise organisations around the world. For this role, you must be resident in the UK and eligible to work without visa sponsorship. What You'll Do • Lead and grow a global Application Technology team, fostering a culture of technical excellence, collaboration, and high performance across multiple regions., • Own the development and evolution of core SaaS application capabilities including account lifecycle management, authentication, access control, notifications, logging, and multi-tenancy for enterprise B2B customers., • Provide direct line management for regional leads and engineering teams, ensuring consistent technical standards, delivery practices, and alignment with global engineering strategy., • Partner closely with Product and Design teams to deliver intuitive, scalable workflows and user experiences across customer-facing applications., • Solve complex engineering challenges involving data pipelines, secure access control, system observability, and large-scale SaaS infrastructure., • Shape engineering practices across teams, embedding quality, security, agility, and DevOps principles into the development lifecycle., • Drive collaboration across global teams, ensuring knowledge sharing, consistent architecture decisions, and unified execution of technical strategy., • Build and scale a high-performance engineering culture through hiring, coaching, structured performance reviews, and career development pathways. What We're Looking For • Backend: Node.js, TypeScript, • Frontend: React.js, TypeScript, • Database: MySQL, • Infrastructure & Tools: AWS, ECS, Kubernetes, Airflow, Kafka, Serverless, • 10+ years' experience building and managing distributed engineering teams across multiple regions, • Proven experience leading global engineering organisations, managing regional leads rather than solely individual contributors, • Strong background developing and scaling high-performing engineering teams, including hiring, mentoring, performance frameworks, and career progression, • Experience working with cybersecurity platforms or large-scale security data, ideally within threat intelligence or offensive security environments, • Track record building engineering organisations within early-stage or high-growth B2B SaaS startups serving enterprise clients, • Deep technical understanding across modern full-stack architecture, including backend services, frontend applications, and cloud infrastructure, • Strong understanding of SaaS platform fundamentals, including onboarding, authentication, SSO, granular authorisation, and account lifecycle management, • Experience designing systems supporting notifications, logging, multi-tenancy, and asset categorisation, • Familiarity with event-driven architectures, asynchronous workflows, and orchestration tools, • Exposure to platform engineering or developer tooling that improves delivery speed, reliability, and developer productivity, • Experience driving Agile and DevOps practices within high-growth technology organisations, • Committed to engineering best practices including clean, testable code and robust automated testing strategies. Why Join? • Lead a globally distributed engineering organisation working on technology that helps enterprises understand and reduce real-world security risk., • Shape the architecture and culture of a rapidly scaling engineering function., • Work on a mission-driven platform operating at the intersection of cybersecurity, data, and SaaS infrastructure., • Join a collaborative, ambitious team where your leadership will directly influence the success of the platform and the organisation. If you are interested in the above role, click the "Apply Now" button for immediate review. Head of Applications, Head of Development, Development Manager, Applications Manager, Head of Applications, Node.js, Typescript, Head of Applications Circle Recruitment is acting as an Employment Agency in relation to this vacancy. Earn yourself a referral bonus if you refer somebody else who fills the role! We also offer an iPad if you refer a new client to us and we recruit for them. Follow us on Facebook - Circle Recruitment , Twitter - @Circle_Rec and LinkedIn - Circle Recruitment.

Python Developer - Insurance Analytics. You will have the benefit of the guidance of our actuarial data scientists, Python developer and product manager, but also the opportunity to take ownership of your work. We have an exciting opportunity to join our Insurance Analytics team as a Python Develope

As a Full Stack Developer, you will provide expert development skills to maintain multiple service capabilities, including;Collaboration and Stakeholder Engagement:Collaborate closely with product owners, user researchers, clinical safety officers, operational teams, and development stakeholders to

Full-Stack (Angular + UX Focus) Full-time | Hybrid | Startup Environment Location: Central London Job Summary We’re looking for a motivated and curious Full Stack Engineer to join our early-stage startup based in London. We’re building an industry-specific productivity management tool, AI-powered, supported by strong investment and high-profile partners. In this role, you’ll work closely with the founding team to design and build user-friendly, responsive interfaces for our B2C productivity management web application. This is an exciting opportunity to contribute to a groundbreaking initiative and help shape the future of productivity. You’ll gain hands-on experience, contribute to real features, and grow your skills in a fast-paced, collaborative environment. From refining user journeys to implementing front-end components using modern tools and frameworks, your work will have real impact. What You’ll Do • Build and maintain responsive, user-focused interfaces using Angular and TypeScript, • Design and implement scalable full-stack architectures from scratch, • Develop backend services using Encore TS (experience with Express is highly transferable and sufficient), • Build and consume APIs, ensuring clean data flow between front-end and back-end, • Work with PostgreSQL and Prisma for data modeling and persistence, • Deploy and maintain services on Google Cloud Platform (GCP), • Build and maintain mobile applications using Capacitor, • Style applications using Tailwind CSS (and maintain existing SCSS where needed), • Write clean, maintainable, and efficient code across the stack, • Debug, troubleshoot, and optimize performance for a seamless user experience, • Collaborate closely with the founding team on product decisions, feasibility, and timelines, • Use Git for version control and collaborative development, • Write basic tests to ensure reliability of components and features What We’re Looking For • Experience as a Full-Stack Developer, • Hands-on experience with:, • Angular & TypeScript, • Express.js (or similar Node.js frameworks), • PostgreSQL, • Prisma, • Tailwind CSS, • Google Cloud Platform (GCP), • Capacitor for mobile development, • Comfortable working across both front-end and back-end codebases, • Experience working with APIs and structured data, • Familiarity with Git and common version control workflows, • Proactive, curious, and comfortable working in a small, fast-moving startup team Bonus Points • Experience with Encore TS, • UX or design sensibility, especially for productivity tools, • Familiarity with Figma or similar design tools, • Interest in accessibility and inclusive design, • Experience building personal, freelance, or startup projects Reporting: This position will be reporting directly to the founder. Salary and Benefits: To be discussed during the interview process.

At Aries Global, we're driven by a singular ambition - to build one of the world's truly exceptional software groups. A high-performing culture where we're able to deliver transformative value to our group, and a place where every team member can demonstrate autonomous impact in a highly collaborative environment . Our mission is simple: we don't just acquire companies - we build enduring, AI-native software platforms. We partner with founders who have built great products and help them unlock their next chapter through our AI-native operating system, centralised GTM engine, and world-class execution capabilities. We bring together exceptional operators, product builders, and leaders - people who insist on the highest standards and excel in a culture of fast pace, focused execution, and deep ownership. In return, you'll experience extraordinary growth, meaningful impact from day one, and a career trajectory far steeper than you thought possible. The Role You will build production systems that matter. Not tickets. Not side projects. Core product. We're hiring at all levels: from early-career engineers to seasoned technical leaders. What matters is how you think, build, and ship. You'll take end-to-end ownership of features from architecture design to measurable impact — shipping code that directly moves revenue, retention, or product velocity. You'll design clean abstractions in ambiguous environments, evolve systems into scalable AI-native platforms, and make strong trade-offs between velocity and durability. • If you're backend-leaning: You'll use Ruby, Python, TypeScript to build and improve a high-performance platform — designing APIs, data models, and integrations that scale., • If you're frontend-leaning: You'll use React and TypeScript to build smooth user experiences that handle real-time data. Either way, you'll collaborate directly with product and commercial teams to shape what gets built, not just how. We care about outcomes, not activity. What We're Looking For • You've built and shipped real systems. You understand data modelling, API design, system trade-offs, testing, and reliability. You know how to move fast without creating chaos. You're strong in at least one modern stack — full-stack ability is a big plus., • You think fast and communicate clearly. You form mental models quickly, break down ambiguous problems, prioritise high-leverage work, and explain your reasoning concisely. You may come from a startup, a top-tier engineering team, or an analytically rigorous environment., • You own the outcome. You don't wait to be told what to do. You don't hide behind ambiguity. You care about the result — and you act on it., • You're AI-native. You're actively exploring LLM workflows, AI tooling, automation, or developer productivity improvements. You see AI as a force multiplier, not a buzzword. Culture High standards. Low ego. Direct feedback. Fast execution. Real accountability. We value people who care deeply about the craft and the outcome. Why Aries • Work alongside unusually driven operators and builders, • Real ownership from day one, • Exposure to multiple software platforms and business models

Top global trading firm looking for a DeFi developer to join a small, highly technical trading team building high-performance systems that operate directly on decentralized markets. The role is hands-on and focused on building production systems in Rust and Python, covering execution, on-chain integrations, and performance-critical components where latency and reliability are key. There is strong end-to-end ownership and clear visibility across the full trading stack. They are looking for someone with a solid software engineering background and several years of experience (typically around 3–7). Experience with trading systems or DeFi is beneficial but not required. What they’re looking for: • Strong production experience with Rust and Python, • Hands-on experience with smart contracts and Solidity at an application level, • 3–4+ years in crypto or DeFi-native roles, • Deep understanding of decentralized exchanges and the current DeFi landscape, • Experience building and maintaining public APIs, • Understanding of trading concepts, either practical or theoretical, • Ability to run and maintain systems on cloud infrastructure, • Based in London or working remotely from anywhere in Europe Nice to have: • Experience designing, writing, and deploying smart contracts, • On-chain trading or strategy development experience, • Familiarity with ecosystems such as Solana, Sui, or Cosmos, • Experience diagnosing performance, latency, or throughput issues, • Interest in product design and user experience alongside engineering

Engineering Team Lead – Platform & Automation Location: London (Hybrid – 1–2 days per week in office) Salary: £100,000 – £130,000 + Benefits Additional: Long-term incentive/equity scheme available after 12 months A rapidly growing technology-driven financial services business is looking for an Engineering Team Lead to help modernise and streamline internal systems across the organisation. This role is ideal for an experienced engineer who enjoys solving complex operational challenges through technology. The focus is on building scalable internal tools, integrations, and automation that improve efficiency across multiple business functions. Rather than working solely on customer-facing applications, you’ll be focused on optimising internal platforms, connecting systems, and reducing manual processes. The Role Leading a small engineering team, you will play a key role in delivering solutions that improve internal workflows and enable teams to operate more efficiently. Responsibilities will include: • Leading and mentoring a team of engineers delivering internal technology solutions, • Designing and implementing system integrations and automation frameworks, • Building and improving internal tools and operational platforms, • Connecting data and services across multiple systems and departments, • Identifying manual or inefficient workflows and replacing them with scalable solutions, • Partnering with product and operational stakeholders to deliver transformation initiatives, • Supporting the rollout of solutions across the wider organisation, • Ensuring the reliability, scalability, and maintainability of internal systems You will collaborate with a variety of teams across the business to help modernise internal technology and improve operational performance. Technical Environment Experience with some of the following technologies would be beneficial: • JavaScript frameworks such as React or Next.js, • Backend development with Node.js, C#, or similar, • Cloud platforms (AWS or equivalent), • Building and maintaining API integrations and distributed systems Experience using AI-assisted development tools or modern developer productivity workflows would be a plus. Get in touch!

About Our Client We're representing a company on a mission to redefine how modern distributed systems are tested and released. Their platform is trusted by engineering teams who demand rock-solid reliability, scalable performance, and deep technical visibility — and it exists because developers deserve something better than what's out there. If you've ever lived through a production outage, had a brutal on-call week, or watched a release slip by weeks because of one killer bug — you'll understand exactly why our client built what they built. If you're passionate about developer-first products, system resilience, and correctness, keep reading. The Role Our client isn't looking for a typical SE. They want an unconventional thinker — someone who gets genuinely energized by breaking things, thrives on chaos, and has the technical chops to deploy a sophisticated testing platform against real-world software and make it sing. You'll split your time between hands-on POC work, customer-facing technical conversations, and thought leadership around a testing paradigm that most engineering teams haven't encountered yet. You'll be the person in the room who actually understands what's happening under the hood — and can make a skeptical senior engineer a believer. What you'll do: • Execute POC engagements that demonstrate real product value to prospective customers, • Lead customer workshops on Property-Based Testing (PBT) and related methodologies, • Support the sales team with technical qualification and consultation, • Find bugs. Break open source software. Make a point of it., • Build, maintain, and deliver product demos that land with technical audiences, • Guide customers and prospects on platform adoption and testing best practices, • Participate in new customer onboarding and early-stage success, • Highly technical — and more importantly, technically curious, • Easily bored; you need new problems to stay engaged, • A natural communicator who can translate complexity for both engineers and executives, • Comfortable under pressure and in tight timelines, • Professional enough for enterprise clients, flexible enough for a fast-moving startup, • Hands-on experience building and running automated tests (integration, end-to-end), • Containerization: Docker, Kubernetes, • Object-oriented programming fundamentals, • Linux-based operating systems, • Scripting: Bash/Shell, Python, or JavaScript, • Data querying: SQL, NoSQL, or equivalent This role requires some travel — client sites, conferences, and occasional visits to our client's HQ. If that's your thing, all the better. Why It's Worth a Look Most SE roles are demo-and-support. This one is different. Our client is building a new category, and the SE who joins now will have outsized influence on how that story gets told technically — and how customers succeed with a platform that genuinely does something new.

Principal Developer – FX Trading Systems (Java / C++) Location: London or Nottingham (Hybrid) Rate: £490 per day (Outside IR35) Contract: Initial contract until end of year, with strong likelihood of extension as part of a multi-year programme. The Opportunity An established financial services organisation is seeking an experienced Principal Developer to play a key role in the architecture and development of a high-performance FX Matching Venue. This is a senior technical leadership role within a large, multi-year programme focused on building next-generation trading infrastructure. The successful candidate will combine deep Java expertise, exposure to C++, and strong experience delivering low-latency trading platforms, particularly within FX markets. Key Responsibilities • Lead the architecture and development of a high-performance FX Exchange platform using Java as the primary language, with some exposure to C++., • Design scalable and resilient systems supporting FX Spot and FX Swaps trading while ensuring solutions meet operational, risk and regulatory requirements., • Optimise applications and Linux environments to achieve low-latency trading performance., • Promote best practices across the software development lifecycle, including code quality, automated testing and CI/CD pipelines., • Drive continuous improvements in system performance, reliability and maintainability., • Provide technical leadership and mentorship to Agile development teams., • Collaborate with architecture, product and commercial stakeholders to align technology delivery with business objectives., • Act as a technical subject matter expert for FX trading systems across the organisation., • Support the development of a best-in-class FX matching platform across FX Spot and FX Swaps products., • Contribute to innovation and platform improvements in performance, usability and operational stability., • Deliver a robust and scalable FX matching platform covering FX Spot and FX Swaps., • Drive improvements in software quality, platform performance and team productivity. Required Experience • Degree in Computer Science, Software Engineering, Electrical Engineering, or a related discipline, • Extensive hands-on experience in low-latency Java development with exposure to C++, • Strong knowledge of multithreading and concurrency in high-frequency trading systems, • Experience implementing low-latency state machines, • Working knowledge of FIX protocol and binary market data protocols, • Strong experience working within Linux environments, • Proven track record building FX trading applications, particularly across FX Spot and FX Swaps, • Experience delivering systems within regulated financial services environments, • Experience working with Agile development methodologies, • Familiarity with CI/CD pipelines and development tools such as Git, GitLab, Bamboo, Bitbucket and SonarQube, • Experience with application security tools such as Veracode, Coverity or Black Duck, • A pragmatic and automation-focused approach to engineering

About Mirakl Mirakl is the leading provider of eCommerce software solutions. Mirakl's suite of solutions provides enterprises with a transformative way to drive significant growth and efficiency in their online business. Since 2012, Mirakl has been pioneering the platform economy, empowering retail and b2b enterprises with the most advanced, secure and scalable technology to digitize and expand product assortment through marketplace and dropship, improve efficiency in supplier catalog management and payments, personalize shopping experiences, and boost profits through retail media. Mirakl is trusted by Macy’s, Saks, Henry Schein, The Knot, 1800-Flowers, Best Buy, Lowe's, Ulta and 450+ industry-leading businesses worldwide. For more information: ___. As a Business Developer for Mirakl Ads, you will play a pivotal role in expanding our retail media business. You will be responsible for both acquiring and engaging advertisers, supporting them in leveraging Mirakl Ads solutions to achieve their growth objectives. Through a mix of business development, strategic advisory, and data-driven insights, you will help advertisers maximize their return on investment while driving the success of Mirakl-powered marketplaces. What You’ll Do at Mirakl: Strategic Growth & Business Development • Define and implement a growth strategy with Mirakl marketplace operators, including target setting, value propositions, and action plans to maximize both advertiser adoption and ad spend, • Develop and execute business development initiatives using both 1:1 and 1:many acquisition strategies, • Drive new advertiser onboarding, leading commercial negotiations and persuading advertisers to quickly start investing on the platform, • Educate and train advertisers on Mirakl Ads solutions, helping them set up and optimize their first campaigns, • Monitor and analyze the evolution of advertising revenues and key advertiser performance metrics, • Continuously animate the advertising ecosystem with strategic offers, campaign insights, and recommendations to drive sustained engagement and investment growth, • Act as the voice of the advertisers, identifying new business needs and relaying them to product teams for potential feature enhancements or new ad productsQualifications:, • Master’s degree in Business or Marketing, • Previous experience in Business Development, Sales, or Account Management is required, • Experience in online advertising, retail media, or digital marketing is preferred, • Strong analytical and problem-solving skills, with the ability to interpret data and make actionable recommendations. Proficient in using Excel and Google Sheet, • Excellent communication, presentation, and negotiation skills, • Ability to thrive in a fast-paced, results-driven environment, • Fluency in English is required, french or another language is a plus We keep it transparent and timely. Here’s what to expect: • Application review : Our Talent Acquisition team reviews your application and assesses alignment with role requirements. We strive to respond promptly and keep you informed at each step, • Introductory call : A conversation to learn about your background and motivations, and to answer your questions about Mirakl, the team, and the role, • Interviews : Business interview (45–60 minutes): Meet the hiring manager to discuss your experience, problem‑solving approach, and impact & Values loop (3 to 4 conversations): Meet with team members from different functions to explore your alignment with our core values and ways of working, • Final decision & offer : We consolidate feedback quickly and aim to share decisions without delay. If successful, we’ll walk you through the offer details, benefits, and next steps Benefits at Mirakl : • Health Insurance: Flexible coverage tailored to individual or family needs, with Mirakl contributing to your plan, • Public Transport Pass: 50% reimbursement on your monthly public transport subscription, • Meal Allowance: Mirakl provide a monthly meal allowance, • Pension & Life Insurance: Mirakl contributes monthly to your pension and covers 100% of life insurance premiums., • ClassPass forfait: Enjoy access to 40,000+ gyms and wellness studios worldwide with a no-commitment ClassPass membership, • Paid Time Off: 25 prorated paid vacation days per calendar year

Job Title: Data Scientist Job Location: Canary Wharf (Hybrid) Contract Length: Until 31/12/2026 Industry: Oil and Energy, Tech Working Hours: 8 per day/40 per week Role Overview: • Design, develop, and maintain production-grade AI applications and services using modern software engineering practices (CI/CD, testing, observability, cloud-native design)., • Define and implement foundational platforms and tools (e.g., conversational bots, AI-powered search, unstructured data processing, GenBI) that are reusable and scalable across the enterprise., • Participate in cross functional team initiatives-embedded projects with business stakeholders -to rapidly build and deploy AI solutions that solve high-priority business problems., • Evaluate and integrate existing AI tools, frameworks, and APIs (e.g., LLMs, vector DBs, retrieval-augmented generation, AI agents) into robust applications., • Champion automation in workflows - from data management ingestion and pre-processing to evaluation, to model integration and deployment., • Collaborate with data scientists, product managers, and other engineers to ensure end-to-end delivery and reliability of AI products., • Stay current with emerging AI technologies but prioritize practical application and delivery over experimental research., • Contribute to the internal knowledge base, tooling libraries, and documentation to scale AI engineering best practices across the organization. What you will have: • Professional software engineering experience: ability to independently design and ship complex systems in production., • Strong programming skills in Python (preferred), Java, or similar languages, with experience in developing microservices, APIs, and backend systems., • Strong problem-solving skills and the ability to balance engineering rigor with delivery speed., • Solid understanding of software architecture, cloud infrastructure (AWS, Azure, or GCP), and modern DevOps practices., • Experience integrating machine learning models into production systems (e.g., LLMs via APIs, fine-tuning, RAG patterns, embeddings, agents and crew of agents etc.)., • Ability to move quickly while maintaining code quality, test coverage, and operational excellence. Preferred:, • Familiarity with AI/ML tools such as LangChain, Haystack, Hugging Face, Weaviate, or similar ecosystems., • Hands-on experience with Retrieval Augmented Generation applications, AI agents and systems built around them., • Experience using GenAI frameworks such as LlamaIndex, Crew AI, AutoGen, or similar agentic/LLM orchestration toolkits., • Exposure to working with unstructured data (documents, conversations, images) and transforming it into usable structured formats., • Experience building chatbots, search systems, or generative AI interfaces., • Background in working within platform engineering or internal developer tools teams., • Prior experience working in an embedded (forward-deployed) team model with business stakeholders., • Experience building production grade, reliable AI applications We are an equal opportunity employer and value diversity at our company. We do not discriminate on the basis of race, religion, colour, national origin, sex, gender, gender expression, sexual orientation, age, marital status, veteran status, or disability status.

We are looking for a Knitwear Product Developer to join the team who will be responsible for managing the garment development process from initial design stage to proto / SMS then through to final sample approval for production. Development • Maintaining a supplier and manufacturer database. Responsible for sourcing in-line with seasonal sampling strategy., • Work closely with Head of Development on collection planning and factory allocation., • Work to Critical development timelines. Working closely with global manufacturers/Local hand Knitters/sampling ateliers and in house atelier. Always ensuring deadlines are adhered to., • Responsible for tracking PD spend and reporting. Ensuring trackers are updated regularly and forecasts are accurate., • Calculating sample make price from proto stage according to target margin & line-plan., • Discussing production price and minimums with supplier to report and discuss with merchandising team., • Organise and manage development fits. During these fits proposing finishing’s/trims, changes to yarn, commercial solutions and write precise fitting notes. Always ensuring the communication flows within team., • Create detailed tech packs with specs and manage all areas the Knit development process., • Work closely with Knitwear design team on the day-to-day development of the collection: ensuring they are aware of and adhering to deadlines and critical path., • Flagging yarn performance issues to design to ensure considered in style allocation., • Knowledge and understanding of technical specification sheets. Accountable for the accuracy of for tech packs sent out to factories., • Responsible for ordering yarn and trims directly from manufacturers for prototypes and samples, • Accountable for ensuring all style information, prices and BOMS are in RLM on time and are accurate for production handover., • Responsible for ensuring all the collection tools and charts are updated so communication on the collection is clear to all cross functional departments., • Work on special projects when needed and be open to working across categories when needed. Pre-Production • Responsible for all Knit handover to production: provide complete information on costing/BOM’s/technical data., • Liaising with yarns mils, vendors & production to ensure relevant care instructions are flagged., • Supporting technical & production team through production season to ensure product history is considered as and when issues arise., • Liaise with vendors and yarn mills as applicable regarding yarn stock, lead times, ex-mill dates and ex-factory dates, • Ensure all required yarn information and certification is collated for the season The ideal candidate will bring the following skills and experience: • Product Development experience in Knitwear 3-5 years, • Good team player, • Good knit technical knowledge., • Experience of working with suppliers in UK, Scotland, Ireland, Italy and China., • Good understanding of Product development and production, • Experience with pricing and tracking budgets, • Capability of working with multiple projects & cross functional teams; partnering closely with the Design team., • Excellent organisational skills and attention to detail., • Solution orientated – problem solver, flexible and adaptable, resilient., • Strong time management skills., • Experience of working in a fast-paced environment., • Strong IT skills including Office (Excel mainly), Illustrator and Photoshop. Knowledge of RLM or other data PLM systems. Equal Opportunity Statement JW Anderson is an equal opportunities employer committed to fostering and preserving a culture of diversity, equality, and inclusion in our workforce. As an equal opportunities’ employer, we do not discriminate against applicants based on race, colour, religion, gender, gender identity or expression, sexual orientation, national origin, genetics, disability, age, or veteran status. We believe that diversity enriches our workforce and strengthens our organisation. Therefore, we encourage minorities, LGBTQ+ candidates, and individuals with disabilities to apply for opportunities within our company. No agencies please. If you need to contact us about the role, please contact Ryan Tuckwell, Head of HR at .

Back end Software Developer - Data Centres Remote - Working from home Overview This role focuses on developing reliable, high-performance backend services and supporting the infrastructure they run on. You’ll work primarily with Python, contributing to API development, system design, and automation, while ensuring everything is robust, maintainable, and production-ready. You’ll be part of a collaborative, remote-first engineering team, working across the full lifecycle of backend development—from design through to deployment and ongoing improvement. What You’ll Do Build & Scale Backend Services • Develop and maintain backend services using Python (FastAPI or similar frameworks), • Design systems that are scalable, efficient, and reliable, • Turn product and technical requirements into well-structured backend solutions Design & Deliver APIs • Build clean, well-documented RESTful APIs, • Ensure APIs are performant and easy to integrate with other services, • Maintain consistency across services and interfaces Own Quality & Architecture • Contribute to system design and architectural decisions, • Write clean, maintainable, and well-tested code, • Participate in code reviews and continuously improve engineering standards Ensure Reliability • Take responsibility for service performance and uptime, • Build and maintain automated testing (unit, integration, end-to-end), • Identify and reduce system risks and failure points Work with Infrastructure • Manage and troubleshoot Linux-based environments, • Support deployments and help maintain production stability, • Investigate and resolve system and application issues Support DevOps & Automation • Containerise applications using Docker, • Automate infrastructure and workflows using tools like Ansible, • Contribute to CI/CD pipelines and release processes Collaborate as a Team • Work closely with engineers across backend, frontend, and infrastructure, • Contribute to planning, technical discussions, and reviews, • Share knowledge and improve team practices, • Take part in an on-call rotation where required What You’ll Bring Core Skills • Experience in backend software development, • Strong Python skills, • Experience with frameworks such as FastAPI (or similar), • Solid understanding of Linux systems and command-line tools, • Experience designing and building REST APIs, • Familiarity with Docker and containerised environments, • Experience with infrastructure automation (e.g. Ansible), • Strong testing practices (e.g. Pytest), • Understanding of scalable and distributed systems, • Experience using Git in a collaborative environment Nice to Have • Experience with message brokers (e.g. RabbitMQ), • Familiarity with tools like Pydantic or SQLAlchemy, • Exposure to CI/CD and modern DevOps practices How Success is Measured • Reliability and uptime of backend services, • Code quality and test coverage, • API performance and scalability, • Stability and success of deployments, • Contributions to system improvements and architecture, • Effectiveness in resolving issues and incidents

Principal Embedded Engineer About the Role An exciting start-up disrupting the consumer hardware industry is building a new category of AI-native devices. Firmware sits at the core of their products, and they are looking for a Principal Embedded Engineer to help build the embedded platform that will power every device they create. In this role, you will work at the very beginning of the product development lifecycle - from early breadboard prototypes through to globally shipped consumer products. You'll help enable rapid hardware experimentation while architecting production-grade firmware designed to scale. They value engineers who enjoy building things, experimenting with side projects, and who have a strong instinct for great product experiences. Responsibilities • Own the Firmware Platform - Architect and implement the core firmware layer underpinning every device, balancing flexibility for rapid prototyping with long-term production reliability., • Lead Prototype Bring-Up - Stabilise early hardware prototypes and develop firmware that enables fast iteration across sensing, interaction and connectivity., • Ship Connected Consumer Devices - Develop secure provisioning, Wi-Fi/BLE connectivity, encrypted cloud communication and device management capabilities for globally deployed products., • Integrate Multi-Modal Sensing - Build robust pipelines for microphones (I2S audio), gesture or proximity sensors and camera modules, managing acquisition, buffering, latency and power constraints., • Design for Scale & Longevity - Implement OTA update systems, rollback strategies, version control and diagnostics to support large fleets of devices in the field., • Bridge Hardware & Software - Collaborate closely with hardware engineers, designers and backend teams to ensure firmware supports the intended product experience., • Set the Embedded Standard - Define firmware architecture, tooling, CI workflows, testing practices and documentation that future embedded engineers can build upon. What They’re Looking For • Production Firmware Experience (ESP32 / RTOS) - Strong experience developing production firmware in C/C++ on ESP32-class microcontrollers using ESP-IDF or similar environments., • Connected Consumer Hardware - Experience shipping connected hardware products into real consumer environments, with knowledge of provisioning, security, OTA updates and post-launch support., • End-to-End Lifecycle Ownership - Comfortable working across the full product lifecycle - from early prototyping through certification, manufacturing and long-term maintenance., • Sensor & Audio Integration - Experience integrating microphones, cameras and other sensors, including driver development and real-world performance tuning., • Hardware Debugging Skills - Confident reading schematics, debugging hardware with oscilloscopes or logic analysers and diagnosing cross-layer issues., • Systems Thinking - Ability to design firmware with a holistic view - managing memory, latency, concurrency, power consumption and failure scenarios., • AI-Augmented Development - Experience using AI-assisted development tools as part of the engineering workflow and an interest in building developer-friendly platforms., • Collaborative Approach - Comfortable working cross-functionally with engineers, designers and product teams to translate product ideas into working hardware., • Curious Builder - Enjoys tinkering, building side projects and exploring new technologies. Benefits • £60,000 - £80,000 depending on experience, • 30 days annual leave including public holidays, • Pension scheme, • Cycle to Work scheme and season ticket loans, • Hybrid working (in-office culture with flexibility & wfh Fridays), • Supportive and collaborative team environment

Senior Full Stack Software Engineer | Node.js • TypeScript • React • AWS | Scaling SaaS Start-Up 🚀 💰 Package: Up to £100,000 📍 Location: Old Street, London (hybrid) 🛠 Tech Stack: TypeScript, Node.js, React, AWS The Opportunity: We’ve partnered with a high-growth SaaS Start-Up that’s transforming how businesses leverage data to scale. After securing significant investment and being led by a seasoned founding team, they are looking for a Senior Full Stack Software Engineer to help drive their technical roadmap and product innovation. This isn't just another coding job; you’ll be tackling complex engineering challenges in a fast-paced environment where your contributions directly impact the product's evolution. The Role: As a Senior Full Stack Software Engineer, you’ll work across the entire lifecycle, from architectural design to deployment. You will: • Own the Stack: Design, develop, and ship scalable features using Node.js, TypeScript, and React., • Cloud & DevOps: Build and maintain robust infrastructure within AWS environments., • Cross-Functional Collaboration: Partner with product and design teams to translate business requirements into high-quality technical solutions., • End-to-End Delivery: Take ownership of frontend, backend, and database (SQL) requirements. What you’ll need: • Proven experience as a Senior Full Stack Software Developer in a product-led or start-up environment., • Deep expertise in TypeScript, with strong production experience in Node.js and React.js., • Solid understanding of AWS and relational databases (SQL)., • A "product-first" mindset, you care about the why as much as the how. #FullStackEngineer #NodeJS #TypeScript #ReactJS #AWS #SaaS #LondonTech #StartUpJobs #SoftwareEngineering

Lead .NET/Full Stack Developer - Hybrid - £700/day Outside IR35 | C# | Azure | Event Driven Systems | Payments | API Driven We have a unique opportunity for a Lead .NET/Full Stack Developer to join a payments company. As the Lead .NET/Full Stack Developer, you’ll play a key role in shaping and scaling a high-throughput payments platform as the business enters its next phase of growth. This includes launching new products, enabling new partner integrations, and expanding a platform that already powers multiple live financial services products used globally. You’ll be building on top of a modern, cloud-native platform built with .NET and Azure, designed around API-first architecture and event-driven microservices. The platform supports complex payment flows, partner integrations, and high-volume transaction processing. This is a hands-on technical role where you’ll help drive engineering best practices, contribute to architectural decisions, and mentor developers while remaining close to the code. Working closely with Product, Data, Risk, and Platform teams, you’ll help evolve the platform architecture and ensure the delivery of secure, scalable, and resilient distributed systems within a regulated fintech environment. 📍 2–3 days per week in the office – City of London 💰 Up to £700/day Outside IR35 🗓️ Initial 6-month contract, Responsibilities • Lead the design and development of high-performance .NET services powering a global payments platform, • Build and scale event-driven microservices running in Azure, • Drive best practices across architecture, coding standards, observability, and reliability, • Work closely with product teams to design API-driven payment and partner integrations, • Mentor and support engineers across the team while contributing hands-on to critical systems, • Help evolve a scalable, distributed architecture capable of handling high transaction volumes, • Contribute to improving engineering velocity, delivery quality, and platform resilience What we’re looking for • Strong experience building production systems with .NET / C#, • Experience building cloud-native systems in Azure, • Experience with event-driven architectures (e.g., Kafka, Service Bus, Event Grid, messaging systems), • Proven experience building distributed systems and scalable APIs, • Experience working on payments platforms, fintech systems, or high-throughput transactional platforms, • Strong understanding of system design, reliability, and performance at scale, • Ability to lead technically while remaining hands-on in development Lead .NET/Full Stack Developer - Hybrid - £700/day Outside IR35 | C# | Azure | Event Driven Systems | Payments | API Driven

Location: London, London, United Kingdom Rate: £600 per day Contract type: Contract We are seeking a Senior Java Developer to join a modern engineering team building high-performance, cloud-native services. You will take ownership of backend design and delivery, mentor engineers, and help elevate engineering standards. A key focus of this role is accelerating team capability with GitHub Copilot—we are looking for a genuine enthusiast who uses it daily, understands the newest features, and can coach others to use it safely and effectively. Key Responsibilities • Design, build, and optimise microservices and APIs using Java 21., • Drive best practice in code quality, testing, secure coding, and performance tuning., • Build and integrate with NoSQL data stores and event-driven components where appropriate., • Deliver cloud solutions on Azure and/or AWS, including CI/CD and infrastructure collaboration., • Champion developer productivity, including effective daily use of GitHub Copilot and prompting patterns., • Significant commercial experience as a Senior Java Developer, with strong hands-on delivery., • Expert knowledge of Java 21 and modern Java ecosystem (Spring Boot, Gradle/Maven)., • Strong experience with microservices, RESTful API design, and distributed systems., • Solid experience with NoSQL technologies (e.g., MongoDB, DynamoDB, Cosmos DB, Cassandra)., • Cloud experience in Azure and/or AWS (security, networking basics, managed services, monitoring)., • Excellent knowledge of automated testing (unit/integration), CI/CD, and version control (Git)., • GitHub Copilot: daily user who understands key new features, limitations, governance, and secure usage; able to upskill others., • Containerisation and orchestration (Docker, Kubernetes)., • Observability tooling (OpenTelemetry, Grafana, Prometheus, Azure Monitor, CloudWatch)., • Experience with event streaming (Kafka, Event Hubs, Kinesis).

A leading UK bank is seeking an experienced Salesforce Engineers. We have successfully built out the first feature team and now moving into 2026 we are continuing to grow the salesforce team. You’ll be at the heart of designing and building innovative Salesforce solutions – delivering secure, scalable applications, optimising user experience, and ensuring the platform is resilient and future-ready. This is a chance to work in a collaborative, forward-looking environment where your technical expertise will shape strategy, your craftsmanship will solve complex challenges, and your passion for engineering will inspire excellence across the team. Accountabilities • Build Engineering – Configure and customise Salesforce solutions using Flows, Apex, Aura, LWC, and OmniStudio to deliver scalable, upgradeable, and low-technical-debt applications., • Integration – Design and implement secure, high-performing integrations with APIs, middleware, and event-driven patterns to ensure seamless data flow and system interoperability., • DevOps & Automation – Apply branching strategies, CI/CD pipelines, test automation, and 2GP packaging to enable efficient, repeatable, and low-risk releases., • Quality & Reliability – Own delivery from development to production, with test automation, deployment plans, and monitoring in place to ensure resilience and reduce recovery time., • Security & Compliance – Follow secure coding practices (CRUD/FLS, least privilege, encryption) and governance standards to protect sensitive data and meet regulatory requirements., • Collaboration – Work closely with architects, product owners, and cross-functional teams to align solutions with enterprise strategy and business outcomes., • Continuous Improvement – Champion evolving engineering practices, contribute to Agile ceremonies, and trial new tools and processes to improve efficiency and predictability. Expectations • Translate business requirements into robust, scalable Salesforce solutions., • Provide technical support in Salesforce architecture, integration, and DevOps practices., • Proactively address technical debt, ensuring long-term platform stability and cost efficiency., • Act as a trusted advisor to stakeholders, influencing technology direction and delivery priorities., • Foster a collaborative culture that values innovation, craftsmanship, and continuous learning., • Contribute to communities of practice, sharing knowledge and best practices across teams., • Uphold engineering and compliance standards, ensuring solutions remain secure and audit-ready. Skills & Competencies • Expert-level Salesforce data architecture, Flows, Apex, LWC, and OmniStudio., • Strong integration expertise (APIs, ETL, asynchronous/event-driven architecture)., • Proficiency in Salesforce DevOps (Salesforce DX, CI/CD pipelines, 2GP packaging)., • Skilled in SOQL/SOSL optimisation and scalable data modelling., • Strong grasp of Salesforce design patterns, component-based development, and secure coding practices., • UI/UX development aligned with accessibility standards (WCAG) and responsive design., • Advanced version control (Git) and deployment tools (Salesforce DX, Copado, Gearset)., • Experience in AppExchange evaluations and Build vs. Buy recommendations., • Proven ability to mentor, collaborate, and communicate effectively across technical and non-technical stakeholders., • Experience in agile delivery, contributing to iterative, high-quality product development. Certifications • Preferred: Salesforce Certified Platform Developer, • Preferred: Salesforce Certified Application Architect, Salesforce Certified System Architect This is a permanent role with hybrid based working in London.

🚀 Product focused Senior Software Engineer – High-Impact Software, Real Ownership London - Onsite Extremely competitive salary ranging between £100,000 to £200,000 depending on experience. Plus excellent benefits. This isn’t a bog standard software engineering role! I’m working with a product-led software company whose platform is used globally by highly technical users to solve real, complex problems in web security technology. They’re looking for Product focused Senior Software Engineers who care deeply about outcomes over output - engineers who want genuine ownership, autonomy, and the chance to build software that truly matters. The position leans more towards a back end engineer. This role is perfect for engineers who started as Java developers but have grown to work across multiple languages, frameworks, and stacks. If you like solving problems, shaping products, and exploring new technologies, this role is for you. This is a role for thoughtful engineers who want to shape what gets built, not just how it’s built. What makes this role different? You won’t be handed a backlog and told to crack on. From day one, you’ll: • Own problems end-to-end, • Talk directly to users and use insight to guide decisions, • Design, build, and evolve features used by a large, expert audience, • Be trusted to experiment, iterate, and make sensible trade-offs, • Ship meaningful work with real-world impact It’s high-leverage work in a high-trust environment. 🛠 What you’ll be doing • Solving complex technical problems with creativity and sound judgment, • Working across the stack as an expert generalist (backend-leaning, but curious everywhere), • Designing and shipping robust, user-ready features, • Collaborating closely with other engineers, designers, and product partners, • Sharing work early and actively inviting feedback, • Using modern AI tools (LLMs, copilots, agents) to improve developer workflows and explore user-facing product opportunities 👀 What they’re looking for This role suits engineers who are product-minded problem solvers, not just implementers. You’ll likely bring: • Strong backend engineering experience (Java is ideal, but mindset matters more than language), • Comfort working across different technologies (e.g. Java, .NET, Python, Go, microservices), • Experience in product-led teams, • Confidence operating in ambiguity and owning problems through to impact, • A genuine interest in users, not just systems, • Curiosity about AI — and good judgment about when (and when not) to use it Just as important as technical skill: • Growth mindset, • Openness to feedback, • Strong collaboration habits, • High personal standards for quality and clarity Both technical excellence and cultural fit are critical — the bar is deliberately high. Why consider this role? • Software with genuine purpose and global reach, • Real ownership and influence over product direction, • A culture of autonomy, trust, and continuous learning, • High standards paired with strong support, • Excellent compensation based on individual impact, • A collaborative, humble, and high-performing engineering team If you’re a backend-leaning engineer who enjoys thinking deeply, building carefully, and working on problems that actually matter, this is well worth a conversation.

Drive the strategy to transform the developer experience by reducing complexity and embedding AI into developer workflows to accelerate product engineering. Our mission is to create the best developer experience to drive innovation, scalability and operational excellence with our internal developer

📱 Junior Android Developer | Building the Future of Mobile !! IMMEDIATE JOINERS !! Junior Android Developer Location : London Work mode : Onsite Experience: 2–5 years CITIZEN & DEPENDENTS Are you a mobile enthusiast who lives for clean code and smooth UI transitions? We are looking for a Junior Android Developer with 1+ years of professional experience to join our engineering team. At this stage in your career, you’ve moved past "Hello World" and are ready to tackle real-world scalability, complex APIs, and the occasional Gradle headache. If you’re eager to learn from seniors while making a tangible impact on a product used by thousands, let’s talk. 🛠️ What You’ll Do • Feature Development: Collaborate with our product and design teams to build and ship high-quality features for our Android application., • Code Quality: Write clean, maintainable code in Kotlin (and some legacy Java) while following modern architectural patterns (MVVM/MVI)., • UI/UX Implementation: Turn Figma designs into pixel-perfect layouts using Jetpack Compose or XML., • Bug Squashing: Identify, debug, and fix performance bottlenecks and edge-case crashes., • Continuous Learning: Participate in code reviews, contribute to technical documentation, and stay up-to-date with the latest Android Jetpack libraries. ✅ What You Bring • Experience: 1+ years of professional experience in Android development (internships count if they were high-impact!)., • Language Proficiency: Strong foundations in Kotlin and a solid understanding of Java., • Android SDK: Familiarity with Activities, Fragments, Services, and Lifecycle components., • Networking: Experience working with RESTful APIs using Retrofit and handling JSON data., • Tooling: Proficiency with Git and a working knowledge of Android Studio., • Mindset: A "can-do" attitude and the humility to ask for help when a bug just won't budge. 🌟 Bonus Points if You Have: • A published app on the Google Play Store (send us the link!)., • Experience with Dependency Injection (Hilt/Dagger)., • Familiarity with Coroutines and Flow for asynchronous programming., • A passion for Material Design 3. 🚀 Why Join Us? • Mentorship: Work directly with Senior Developers who actually enjoy teaching., • Tech Stack: We stay on the cutting edge—no ancient legacy codebases here., • Growth: A clear path to becoming a Mid-level Developer within [Timeframe]., • Perks: [Insert Perks: e.g., Remote-first culture, Learning stipend, Health benefits].

.NET Architect - Social Messaging Platform - London (Tech stack: .NET Architect, .NET 10.0, ASP.NET Core, C# 14, Azure SQL, .NET MAUI, GitHub Copilot, Docker, Kubernetes, Microservices architecture, Angular 21, Vue.js, TypeScript, Programmer, Full Stack Engineer, Developer, .NET Architect) In 2012 our client launched a social messaging platform that has been taking the US by storm. After an extremely successful period our client has decided to hop across the Atlantic, in a bid to expand their sphere of influence and take up a firm foothold in the UK and European markets. A number of new offices are being opened in the UK and our client is looking for talented, enthusiastic and passionate .NET Architect to bring their product to these new markets and help enhance this already successful company! Successful .NET Architect candidates should be able to demonstrate strong knowledge of: .NET 10.0, C# 14, Azure SQL, .NET MAUI, GitHub Copilot, Docker, Kubernetes, Microservices architecture, Angular 21, Vue.js, TypeScript, Azure, AWS, Node.js, Elasticsearch, Agile, TDD, BDD, Scrum, Kanban and MongoDB. Training will be provided in any of the technologies you lack, allowing you to turn your technological weaknesses into your greatest strengths! The .NET Architect position come with the following benefits: • Stock worth £33,000. The stock would be in their parent company (a multi-billion dollar company)...

This role will partner closely with the PRS Product Manager, Designer, Mobile Engineers, and QA to deliver a secure, scalable, API-driven cross-platform app using React Native. Key Responsibilities • Act as technical authority for the mobile app project., • Define and validate the overall technical architecture, including evaluating microservices vs modular monolith approaches., • Lead development of Back End services and API integrations across existing PRS systems (eg, account management, works/rights, financial data, reporting)., • Ensure the app is responsive, scalable, and secure, with particular focus on MFA, SSO and access to financial data., • Work closely with the PRS team to integrate with existing APIs or advise on the creation of a centralised API layer., • Provide technical oversight for React Native app implementation, collaborating with mobile developers., • Advocate for and support the use of AI accelerators in the development life cycle., • Conduct code reviews, maintain coding standards, and ensure technical best practices., • Proven experience as a Senior Full Stack Developer or Technical Lead., • Strong Back End engineering skills using modern frameworks., • Experience designing and consuming RESTful ...

AI Systems Architect - Studio Co-Founder Overview We are looking for a Founding AI Systems Architect to help build the technical and AI foundations of a new mobile gaming company from the ground up. This is not a traditional role inside an established studio. It is a true zero to one opportunity where you will define how AI is used across the product, the architecture that supports it, and the long-term technology strategy of the company. The studio’s first product is a gamified mobile app built on strong free-to-play principles. AI will play a key role in shaping intelligent systems around player engagement, personalisation, retention and feature dynamics. Over time the platform will expand into a portfolio of Unity-based mobile games. This role will work directly with the founder and early leadership team and will have a major influence on the studio’s long-term technology roadmap. Responsibilities • Define the overall AI architecture for the studio’s products, ensuring systems can scale from the initial app into future game titles., • Design and implement AI driven systems that improve player engagement, retention and personalisation., • Architect AI infrastructure and pipelines that integrate effectively with mobile applications and Unity based games., • Design systems that allow data, player behaviour and live operations to inform AI driven features and gameplay., • Build frameworks and tooling that allow engineers, designers and product teams to integrate AI capabilities into products., • Ensure systems are scalable, performant and suitable for mobile platforms., • Play a key role in shaping the long term technical vision of the company as part of the founding team. Technical Requirements • Strong background in software engineering and system architecture., • Experience designing and deploying AI or machine learning systems in production environments., • Experience building scalable backend systems and integrating AI services into applications., • Experience working with or integrating systems into Unity or real time interactive environments., • Ability to work across product, engineering and design to translate ideas into scalable technical solutions. Desirable Experience • Experience in mobile games or free-to-play game development., • Experience building gameplay AI systems or simulation systems., • Experience with personalisation systems, recommendation engines or player behaviour modelling., • Experience working in early-stage startups or building products from zero., • Experience with generative AI, reinforcement learning or adaptive gameplay systems., • Experience designing developer tools or AI frameworks used by product teams. What You Will Help Build • An AI foundation that supports both a consumer mobile application and a future portfolio of games., • Intelligent systems that power player engagement, progression and personalisation., • AI frameworks that scale across multiple Unity based game projects., • A modern technology stack designed from the ground up for a new generation of AI enhanced mobile games.

AI Engineer (Contract) – £500/day Outside IR35 📍 Canary Wharf, London (3 days onsite) 🇬🇧 UK-based applicants only We’re looking for experienced AI Engineers who think holistically, automate relentlessly, and know how to turn modern AI capabilities into production-grade, high-impact applications. Our AI organisation is building real-world AI products that deliver business value at speed. This role is ideal for seasoned engineers who combine strong software engineering fundamentals with a pragmatic, hands-on approach to AI tooling and infrastructure. What you’ll be doing • Designing, building, and maintaining production-grade AI applications using modern engineering practices (CI/CD, testing, observability, cloud-native design)., • Developing reusable AI platforms and tools (e.g. conversational bots, AI-powered search, unstructured data processing, GenAI solutions)., • Working in cross-functional, embedded teams with business stakeholders to rapidly deliver AI solutions to high-priority problems., • Evaluating and integrating AI tools and frameworks (LLMs, vector databases, RAG, AI agents) into robust, scalable systems., • Championing automation across the full AI lifecycle—from data ingestion and preprocessing to deployment and monitoring., • Collaborating closely with data scientists, product managers, and engineers to ensure reliable end-to-end delivery., • Contributing to internal tooling, documentation, and best practices to scale AI engineering capability. What we’re looking for • Several years of professional software engineering experience, with a track record of shipping complex systems to production., • Strong Python skills and experience building APIs, microservices, and backend systems., • Solid understanding of software architecture, cloud infrastructure (AWS and/or Azure), and modern DevOps practices., • Hands-on experience integrating ML models into production systems (LLMs via APIs, fine-tuning, RAG, embeddings, agents)., • Experience with tools such as LangChain, LlamaIndex, Haystack, Hugging Face, Weaviate, CrewAI, AutoGen, or similar., • Hands-on work with Retrieval Augmented Generation, AI agents, and agent orchestration frameworks., • Experience working with unstructured data (documents, conversations, images)., • Background in platform engineering, internal developer tools, or forward-deployed/embedded team models., • Rate: £500 per day, • Location: Canary Wharf, London (3 days onsite per week), • Eligibility: Must be UK-based

🔥 Who We Are At ___, we relentlessly drive innovation in AI, building the world's leading ___. We're looking for passionate individuals obsessed with AI, eager to make a global impact, and ready to excel in a dynamic, high-energy environment. Join ___ and help ___. 🌎 Location and Legalities This full-time Solutions Engineer position is based onsite in our brand-new ___ in London, UK, with a hybrid model of 3 days in-office and 2 days remote. Applicants must have legal authorization to work in the UK, as Ultralytics does not provide visa sponsorship. 🚀 What You'll Do As a Solutions Engineer at Ultralytics, you will be the technical face of our organization, working directly with clients to architect and deploy computer vision solutions using the ___. Key responsibilities include: • Collaborating with clients to understand their use cases and challenges, architecting end-to-end solutions using ___., • Delivering high-quality technical demos, onboarding sessions, proof-of-concepts, and workshops that demonstrate the power of ___., • Designing annotation strategies and ___ tailored to client data, goals, and deployment constraints., • Debugging client issues and delivering effective solutions with deep understanding of ___, Python, ___, and model behavior., • Supporting pre-sales efforts by participating in technical discovery calls and helping shape proposals and SLAs., • Serving as a key technical advisor during customer engagements, ensuring successful integration and continued satisfaction., • Interfacing with Sales, Marketing, Engineering, and Product teams to advocate for customer needs and influence roadmap priorities., • Acting as a strategic technical advisor to clients, shaping computer vision solutions that drive tangible business outcomes., • Representing Ultralytics at conferences, webinars, and customer events while contributing to technical blog posts and educational materials. Your strategic vision and technical expertise will be essential in supporting ___ of delivering top-tier machine learning tools and models like ___ to the community. 🛠️ Skills and Experience • 5+ years of experience in Computer Vision, Machine Learning, or applied AI roles., • Excellent client-facing skills: patient, resilient, and able to communicate clearly with technical and non-technical stakeholders., • Proficiency in Python and familiarity with the ___., • Hands-on experience with ___, ___, and classical ML/CV concepts., • Strong understanding of end-to-end ___, including data collection, preparation, ___, ___, and ___., • Experience with ___ and comfort working across Linux, macOS, and Windows environments., • Demonstrated ability to teach or mentor teams and developers through courses, bootcamps, workshops, or community engagement., • Comfort leading workshops, writing technical guides, or presenting to developer audiences. 🌟 Cultural Fit - Intensity Required Ultralytics is a high-performance environment for world-class talent obsessed with achieving extraordinary results. We operate at a relentless pace, demanding exceptional dedication and an unwavering commitment to excellence, guided by our ___. Our ___ thrives on audacious goals and absolute ownership. This is not a conventional workplace. If your priority is predictable comfort or a standard work-life balance over the relentless pursuit of progress, Ultralytics is not for you. We seek driven individuals prepared for the profound personal investment required to make a defining contribution to the future of AI. 💶 Compensation and Benefits • Competitive Salary: Highly competitive based on experience., • Startup Equity: Participate directly in Ultralytics growth and success., • Hybrid Flexibility: 3 days per week in our brand-new office - 2 days remote., • Generous Time Off: 24 days vacation, your birthday off, plus local holidays., • Flexible Hours: Tailor your working hours to suit your productivity., • Tech: Engage with cutting-edge ___ and our ___., • Gear: Brand-new Apple MacBook and Apple Display provided., • Team: Become part of a supportive and passionate ___. If you are driven to redefine the capabilities of machine learning and eager to make a significant impact, ___ offers an exceptional career opportunity.

The pitch. It’s a serious engineering role with a great team – and meaningful responsibility. This is not a narrow “ticket-closing” developer job. You won’t be handed tightly scoped Jira tasks inside a heavily layered team structure. You won’t be maintaining a disposable MVP. And you won’t be managing people. Instead, you’ll be working on the core platform that underpins Outsmart’s crowdsourcing operations – a mature, revenue-generating system that has evolved over years and continues to scale. If you enjoy owning real systems, thinking architecturally, improving legacy code thoughtfully rather than rewriting it, and being trusted to deliver without heavy supervision, this role will feel unusually well-matched. The role As Senior Fullstack Software Engineer, you will help design, build and maintain the production systems that power Outsmart’s platform. You’ll work closely with our CTO, operating as a high-agency individual contributor with genuine ownership across backend systems, infrastructure and platform evolution. This is a role for someone who wants to: • Work on real, live systems with meaningful operational responsibility, • Make architectural decisions, not just implement them, • Improve and extend an existing platform with care and judgement, • Help shape the engineering foundations for the next stage of company growth You will be trusted to take product and operational requirements and translate them into robust, production-ready solutions. What you’ll be doing • Designing and maintaining backend services primarily in Python, • Developing and evolving well-structured RESTful APIs, • Designing and improving data models across relational (e.g. PostgreSQL) and NoSQL databases, • Working across the stack where needed, including JavaScript, modern HTML/CSS, and utility frameworks such as Tailwind, • Contributing to cloud-based infrastructure (e.g. Google Cloud), deployment pipelines and DevOps practices, • Debugging live production issues with a calm, root-cause mindset, • Incrementally improving system architecture using sound design principles (including modular design, DDD-style thinking, and pragmatic architectural patterns), • Reviewing code, raising standards constructively, and contributing to a disciplined engineering culture, • Leveraging modern tooling (including AI-assisted development) to improve quality and velocity This is not greenfield experimentation. It is thoughtful, high-quality engineering on systems that matter. The environment We are a small, intellectually serious company. That has advantages and responsibilities. You will: • Speak directly with senior decision-makers when needed, • Operate without perfect documentation, • Balance speed with long-term maintainability This role suits someone comfortable with autonomy, accountability and cross-functional collaboration. Who this role is for This role is designed for someone who is: • 8–15 years into their engineering career, • Has worked in a small company (c. 5–30 people) or similarly lean environment without heavy process, • Experienced in inheriting and improving mature systems, • Comfortable reading and navigating complex legacy code, • Strong in systems thinking (trade-offs, scalability, cost implications), • Backend-heavy, with strong Python expertise, • Operationally mature – you’ve supported production systems, not just built features You are likely: • Calm under pressure, • Direct but not ego-driven, • Curious and thoughtful rather than dogmatic, • Comfortable challenging ideas constructively If you primarily identify as a manager, a greenfield-only builder, or someone who prefers heavy structure and layered sign-off, this role is unlikely to be a good fit. Practicalities Schedule: Monday to Friday Weekends: No Location: UK-based Working style: Hybrid (remote and London office) Why Outsmart Insight? Outsmart Insight operates at the intersection of technology, intelligence and large-scale coordination. Our internal platform powers a global network and supports complex, high-trust client engagements. We are deliberately serious about quality, reliability and long-term thinking. As we grow, we are investing in strengthening our engineering foundations – building systems that are robust, scalable and thoughtfully designed. If you want to work somewhere where your engineering judgement genuinely matters, this is that opportunity. Our values • Smart minds, working together, • Quality delivered every time, • Strong client relationships built on trust, • Hard work, rewarded, • A happy, healthy team Apply Send a short cover letter and a two-page CV to , outlining why this role, and this type of engineering work, appeals to you. Please note: only applications sent directly to this email address will be considered.

🚀 Senior/Lead Full Stack TypeScript Engineer 📍 Remote / Hybrid 💰 Up to £130k + Up to 0.3% Equity We’re looking for a Senior/Lead Full Stack TypeScript Engineer with 5+ years of experience building scalable products. A huge plus if in fast-moving startup environments. If you thrive in ambiguity, ship quickly, and care deeply about product quality and user experience, we’d love to speak with you. 🔧 What You’ll Do • Design, build, and maintain scalable full stack applications using TypeScript, • Own features end-to-end from architecture to deployment, • Collaborate closely with product, design, and leadership to ship impactful features, • Improve system performance, reliability, and developer experience, • Contribute to architectural decisions and technical strategy, • Mentor engineers and promote engineering best practices ✅ What We’re Looking For • 5+ years of professional software engineering experience, • Strong experience with TypeScript across frontend and backend, • Experience with modern frontend frameworks such as React, Next.js, or similar, • Experience building backend services with Node.js, • Proven experience working in fast-paced startup environments, • Strong understanding of system design, APIs, and scalable architecture, • Comfortable taking ownership and operating with high autonomy, • Excellent communication skills 🌟 Nice to Have • Experience with cloud platforms such as AWS, GCP, or Azure, • Experience with CI/CD pipelines and DevOps practices, • Experience scaling systems from early stage to growth phase, • Prior experience in Seed to Series B startups 💡 Why Join? • High ownership and real product impact, • Work closely with experienced founders and operators, • Competitive salary and equity, • Flexible working environment If you're a strong TypeScript engineer who enjoys building in high-growth startup environments, apply directly or reach out to learn more.

I am partnering with an AI first UK Biotech startup focused on the development of foundation models for next generation biological data analysis. (Senior) Full-Stack Engineer – London, Hybrid Role: Senior Full-Stack Engineer Location: London, UK (on-site/hybrid) Type: Full-time, Senior Level Full Stack Developer (Python + Next.js) We’re looking for a Full Stack Developer to join a fast-growing team building cutting-edge technology used by scientists to accelerate drug discovery. This role sits at the intersection of software engineering, data, and life sciences, helping create platforms that enable researchers to run large-scale virtual experiments and analyse complex biological data. You’ll work across the stack to design and build high-performance web applications, APIs, and data pipelines that power data-intensive scientific workflows. The ideal candidate enjoys taking ownership of features end-to-end and thrives in a collaborative, fast-paced startup environment. What you’ll do • Build and maintain scalable backend services using Python and FastAPI, • Develop modern, responsive user interfaces using React and Next.js, • Design and integrate APIs that power data-driven scientific applications, • Work with large biological datasets and build efficient data pipelines, • Collaborate closely with engineers, researchers, and product teams to deliver new features, • Around 2+ years of experience in full stack development, • Strong experience with Python backend development, • Experience with React and/or Next.js, • Familiarity with REST APIs, modern web architecture, and cloud environments, • Comfortable working in a startup or fast-moving environment, • Experience with FastAPI, • Exposure to data engineering or data pipelines, • Experience working with scientific or data-heavy applications, • Interest in biotech, healthcare, or scientific software Following your application Jay Robins, a specialist AI Recruitment consultant will discuss the opportunity with you in detail. He will be more than happy to answer any questions relating to the industry and the potential for your career growth. The conversation can also progress further to discussing other opportunities, which are also available right now or will be imminently becoming available. This position has been highly popular, and it is likely that it will close prematurely. We recommend applying as soon as possible to avoid disappointment. Please click ‘apply’ or contact Jay Robins for any further information. Email:

We’re looking for an ambitious Graduate Software Developer who loves tackling technical challenges, learning fast, and working with smart, supportive engineers. You’ll write code that ships — not sit on sidelines. Collaborate with engineers, data scientists, and product teams on exciting new f

Founded by ___, creator and co-founder of ___ (Series B, $425M valuation), Colossal is building at the intersection of generative app development and commerce infrastructure. Think: Lovable for commerce. We're backed by Tier 1 investors: ___, ___, ___, and are planning to raise our seed round later this year. Why Colossal? We're building the world's first AI-native commerce infrastructure platform, working with bleeding edge technologies and paradigms to redefine how businesses sell online. Join our early team and help shape the future of AI commerce. We’re still in stealth, so get in touch to learn more. 🥷 What we’re looking for • 5+ years experience building service-oriented software products end to end, ideally at early-stage startups, • A strong understanding of AI-based developer tools, methods and paradigms, • Generalist mindset with experience across the full stack, • Strong understanding of CI/CD, cloud infrastructure, observability, and developer tooling, • Comfortable owning products and features end to end, and taking responsibility for performance and optimisation, • Strong communicator, able to distribute knowledge across the team effectively through documentation, talks, demos and presentations What you’ll do • Build and own core backend services for our commerce infrastructure tools, including billing, workflows, and financial operations, • Build features that integrate AI into real-world product experiences, • Play a key role in software architecture design, including research, writing POCs for further refinement How we hire • Initial call with the founder (30 mins), • Complete a take home exercise, • Task review and pair programming with a team member (1 hour), • Meet with the product team for 2-way interview (30 mins), • Offer stage (including reference checks) To apply, please send your resume and a brief intro describing your interest to:

Senior Backend Developer (.NET | AI-First SaaS Platform) Compensation: Competitive, based on location and experience Location: UK or Turkey (Hybrid – Office & Remote) Keepnet is an AI-driven SaaS platform experiencing strong, sustained growth in the UK with growing global momentum, helping organisations manage human cyber risk at scale. With Agentic AI live in production, Keepnet runs autonomous systems that plan, build, and operate security awareness and human risk workflows, supported by strong guardrails and observability. We’re looking for a Senior Backend Developer who wants to build production-grade backend services that power these systems, working in a multinational, AI-first engineering team where quality, ownership, and long-term thinking matter. What You’ll Do • Design, build, and maintain scalable backend services for Keepnet’s Human Risk Management platform., • Build clean, modular APIs that integrate internal services and third-party systems to enable automation, reporting, and security workflows., • Develop testable, maintainable codebases using principles such as Clean Architecture, DDD, and TDD., • Own the full development lifecycle: design, implementation, CI/CD (Azure), and post-release monitoring., • Work on distributed and asynchronous systems using message queues, background workers, and event-driven workflows., • Use observability signals (logging, metrics, tracing, tools like Sentry) to proactively detect, diagnose, and prevent production issues., • Collaborate closely with frontend, product, and customer-facing teams to deliver features that solve real customer problems., • Participate in Agile ways of working, focused on iteration, ownership, and continuous improvement. What We’re Looking For • 8+ years of experience building backend systems with .NET., • Strong understanding of API design, distributed systems, and asynchronous architectures., • Experience with SQL and NoSQL databases (PostgreSQL preferred), caching, and queuing systems., • Familiarity with cloud environments and DevOps practices (Azure preferred)., • Comfort working on production SaaS platforms, with ownership beyond deployment., • Experience using AI-assisted development tools (e.g. Cursor or similar) to support code exploration, refactoring, testing, or design discussions—while maintaining strong engineering judgment., • A strong sense of ownership and production accountability, including monitoring, debugging, and continuous improvement., • Ability to understand product and business context, making pragmatic technical decisions that balance user value, risk, and long-term goals., • A security-conscious mindset, building systems that are secure by design. Life at Keepnet At Keepnet, engineering is about craft, collaboration, and impact. What you can expect: • Hybrid Working: A balance of in-office collaboration and remote focus time., • Thoughtful Engineering: Time and space to design systems properly, not just ship quickly., • Global Context: Work on a multinational SaaS platform used across multiple regions., • AI-First Environment: AI-assisted development and production-grade AI systems are part of everyday work., • Annual Leave: 25 days (+1 per year of service)., • Health & Well-being: Gym support and cycle-to-work scheme., • Team Culture: Monthly team lunches and quarterly offsites., • Continuous Learning: Learn from experienced peers and grow your skills over time. Why This Role Is Different This role is for engineers who: • Care about system design and long-term maintainability, • Enjoy working with experienced peers who challenge each other constructively, • Prefer preventing incidents over reacting to them, • Want to build software used by real customers at real scale, • Believe good engineering is as much about ownership and judgment as it is about code If that sounds like you, we’d love to talk.

🚀 Staff AI Engineer — Leading EdTech Company | UK | Full-time Our client is a globally recognised EdTech platform that has helped millions of learners worldwide master data science, analytics, and AI. Now they're going further - and they need a world-class Staff AI Engineer to help build the next generation of intelligent learning experiences. What you'll own: You won't be a feature factory. This is a high-ownership, high-impact role where you'll: • Design and ship LLM-powered features directly into their learning platform - think intelligent code feedback, AI-assisted learning paths, and smart content recommendations, • Build and maintain RAG pipelines, agentic workflows, and evaluation frameworks that run reliably at scale, • Set the technical direction for how AI is integrated across the product — from architecture decisions to production observability, • Be a force multiplier for the engineering team through mentorship, code reviews, and raising the technical bar You're a strong fit if you have: ✅ 6–10 years of hands-on AI/ML engineering experience, with a clear track record of shipping LLM-based systems to production (not just prototyping) ✅ Deep expertise in Python, modern LLM frameworks, and cloud infrastructure ✅ Experience building AI features inside a consumer or B2B product - developer tools, EdTech, or similar a big plus ✅ Strong engineering fundamentals: you care about reliability, observability, and clean architecture ✅ A builder mindset - you're energized by ambiguous problems, not slowed down by them Why this role: 🌍 Work on a product used by millions of learners globally 🧠 Deep AI-first culture — this isn't an AI afterthought, it's core to the roadmap 🏡 Remote-friendly from the UK (candidate must be living in the UK with valid work permits) 💰 Competitive compensation 🤝 A team that values craft, curiosity, and getting things done If you're the kind of engineer who gets excited about making learning genuinely smarter — not just adding a chatbot - we'd love to talk. 📩 Apply below!

🚀 About Webigence and Spark Travel Webigence has 25 years of experience crafting UX‑first, often highly complex software. Our engineers pair forward‑thinking agile practices with an obsession for intuitive design, shipping products that feel effortless even when the logic underneath is anything but. Alongside a handful of long‑standing third‑party clients, we’re scaling our own SaaS product—Spark Travel—at pace. You’ll join a smart, collaborative team that pushes each other to articulate and defend every architectural decision in pursuit of best‑in‑class software. Spark Travel itself is on a mission to drag the tailor‑made travel industry into the 21st century. Our cloud‑native platform unifies sales, supplier contracting, dynamic pricing, and on‑trip operations—everything from the first quote to the traveller’s safe return. The market is huge, the incumbents are slow, and we already have meaningful traction: roughly 35 customers and an accelerating sign‑up pace, a very healthy sales pipeline, and a roadmap brimming with genuinely novel features. With a fantastic existing team across engineering, product, customer success, marketing, and sales, we’re gearing up for hyper‑growth. We’re looking for two down‑to‑earth professional, a conscientious Senior Software Developer, to build on what already works and unlock our next wave of innovation. 🌟 Your Impact • Raise the bar sensibly. Whether you’re refining our Azure architecture as CTO or shipping revenue‑critical features as Senior Dev, you’ll set high standards without reinventing the wheel., • Champion intuitive user experiences. Both roles care deeply about usability, ensuring our platform feels effortless for travel pros and their travellers., • Own the craft. Understand the problem, ship the solution, measure the outcome—and when something’s working, double‑down on it., • Move the needle. Your work will streamline the day‑to‑day of leading tailor‑made tour operators and DMCs—enhancing trip experiences for their travellers as we scale. 🧭 Role Snapshot 2️⃣ Senior Software Developer • Be UK‑based (remote within the UK) with ability to attend occasional team meet‑ups in London (travel expenses covered)., • Design, build, and maintain features across the stack: .NET (C#) based API backends, Angular (TypeScript) based frontends, SQL Server, Cosmos DB., • Own mission‑critical modules such as pricing engines, itinerary or form builders, client proposal app, etc., • Write clean, tested code; automate everything from CI/CD pipelines (Azure DevOps/GitHub Actions) to performance benchmarks., • Investigate and diagnose issues and perform root cause analysis., • Collaborate cross-functionally with Product, Design, and Customer Success., • Propose incremental improvements and occasionally explore new tech (e.g. Azure OpenAI) when it clearly solves a problem. You might be our Senior Dev if… - Hold a 1st-class or 2:1 degree in Computer Science or a closely related discipline. - 4+ years building modern web or data applications with .NET and at least one JavaScript framework. - Hands-on experience with Azure or another major cloud provider, plus an understanding of microservices and event-driven architectures. - You love balancing delivery speed with technical excellence, and you’re keen to keep learning. 🎁 What We Offer • Competitive salary, equity options coming soon, • Remote‑first culture with asynchronous workflows, • Private healthcare, • Employer pension contributions above statutory, • Home‑office setup budget, • Coworking space allowance, • Flexible hours with async core overlap, • Professional‑development budget, • Conference & certification leave, • Choose‑your‑own‑tech toolkit, • Travel‑to‑London expenses for required in‑person meetings, • Collaborative and innovative company culture 📩 How to Apply • Send your CV., • Confirm you are currently living and legally able to work in the UK., • Share one project or decision you’re proud of, why it mattered, and what you learned. Please note: We are only considering UK‑based applicants who fully meet the role criteria. Applications that do not comply will not be considered now or in future hiring rounds. Deadline: 15th March 2026 (rolling review—apply early). Spark Travel is an equal‑opportunity employer and a welcoming neurodiverse team. We celebrate diversity and are committed to creating an inclusive environment for all. We’re not just saying that, we really mean it!

The Setup: A high-growth agile unit within the global STARLIMS ecosystem. STARLIMS provides leading Laboratory Information Management System (LIMS) solutions that have served customers around the world for over 30 years. Our solution suite helps labs: • Improve the reliability of sampling and testing, • Manage complex testing workflows and analytical methods, • Support compliance with global regulatory requirements and industry standards The Role: Architect, Mentor, & AI Pioneer We are looking for a Senior Architect/Lead Developer to take complete ownership of the Labstep platform. You will be the primary decision-maker for our architecture, moving us from a robust data tool to an AI-augmented powerhouse. The Opportunity: The Best of Both Worlds Labstep was founded to build user-centric software that accelerates scientific discovery. Recently, we joined forces with STARLIMS, a global leader in Informatics. What this means for you: You get the high-impact, fast-moving "Day 1" culture of a startup where you own the entire tech stack, backed by the job security, comprehensive healthcare, and professional benefits of a major global organization. • Complete Technical Autonomy: You own the AWS-based stack (Pulumi, ECS, Fargate). You decide the "how" and the "when" for every major architectural shift., • Lead the AI Roadmap: You will architect our AI Search and Natural Language Agent. We want a pragmatic engineer who can lead the implementation of LLMs and Vector Databases to help scientists automate complex tasks., • Mentorship & Team Lead: You will work closely with a Technical Product Manager and mentor a Junior Developer, setting the standard for engineering excellence and clean code., • DevOps Excellence: Managing our infrastructure via Pulumi to ensure the high-availability and security standards required by global research institutions. The Tech Stack: We believe in using the right tool for the job. You will manage the current foundation while evolving it: • Current Core: PHP 8 / Symfony / Doctrine API, React / TypeScript Frontend., • Cloud/Infra: AWS (Fargate, ECS, Lambda), Pulumi (IaC), MySQL., • The Frontier: This is your domain. You will lead our transition into Vector Search, Hybrid Search Engines, and AI Orchestration. Who You Are: • A Technical Owner: You’ve scaled production web apps and are comfortable across the full stack and infrastructure., • Pragmatic AI Enthusiast: You don't need a background in AI, but you are excited to build production-ready AI features (RAG, Agents) that solve real problems., • Empathetic Mentor: You enjoy leveling up junior talent and collaborating deeply with product peers., • Mission-Driven: You want your work to help scientists cure diseases and solve global challenges. Skills Required: • 5+ years of leading development teams, • 5+ years of leading architect, • 5+ Years of AWS DevOps experience, • Experience coding with the following languages/technical solutions - PHP 8 / Symfony / Doctrine API, React / TypeScript Frontend Why Labstep & STARLIMS? • Impact: Your code directly supports the world’s leading scientists and researchers., • Stability & Perks: Enjoy the comprehensive benefits package of a large corporation—including private healthcare, pension, and enhanced job security—without the corporate red tape., • The "Startup" Feel: We remain a small, agile team that moves fast, experiments often, and values your voice., • Work-Life Balance: Remote-first flexibility with meaningful monthly in-person collaboration in London. STARLIMS is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, creed, religion, color, national or ethnic origin, citizenship, sex, sexual orientation, gender identity and expression, genetic information, veteran status, age or disability status.

Suitable for: Specification Manager, Sales Engineer, Technical Sales Manager, Area Sales Manager, Specification Sales Manager, Business Development Manager An established manufacturer of mechanical ventilation systems is seeking a Business Development Manager to drive specification and sales activity across London and the South East. This is a specification-led role focused on engaging with mechanical contractors, main contractors, housebuilders and consultants to influence product selection at design stage and convert through to order. You will take full ownership of the sales cycle - from lead generation and initial engagement through to specification, quotation, negotiation and close - with a clear focus on increasing market share across the region. Requirements * Experience selling mechanical ventilation systems, HVAC products or similar technical solutions * Strong understanding of ventilation systems (MVHR, MEV, extract, ductwork principles) * Experience selling into residential developers, housebuilders, M&E contractors or consultants * Proven ability to generate leads, secure new business and manage a full sales cycle * Technically credible, able to advise on product selection and compliance with Building Regulations Part F * Confident presenter, able to deliver CPDs and technical product demonstrations * Self-motivated and capable of managing a regional territory independently * Full UK driving licence and willingness to travel across London & the South East Desirable: * Background in specification-led sales within building services or HVAC * Relevant qualification in mechanical engineering or building services * Knowledge of UK residential construction market and developer landscape Package * £50,000 - £55,000 basic salary (flexible for the right candidate) * Performance-related bonus structure * Company car or car allowance * Pension and standard benefits * Structured product training and ongoing development WR HVAC | M&E are #1 recruitment partner for HVAC jobs. Our customers include a range of large and small M&E companies, manufacturers and suppliers of heating, ventilation, air conditioning and refrigeration equipment. We recruit UK wide for sales, management and technical jobs. WR is acting as an Employment Agency in relation to this vacancy. JBRP1_UKTJ

THE ROLE We're seeking a talented and ambitious Developer to join us as Senior Software Engineer, with potential to move quickly into a Head of Technology role, pending performance. The ideal candidate will be hungry to be a part of building something from the ground up, shape team culture, and prove themselves as a leader. Working closely with our Head of Product and supported by our Fractional CTO, you'll be instrumental in developing our product as we scale, with a focus on building and shipping AI/ML-driven features. REQUIREMENTS • Mastery of Python, • Minimum 5 years of experience, • Experience working on the engineering team in a start-up, scale-up or product-driven company, • Strong understanding and experience with building and consuming API-driven solutions., • Experience with database technologies, cloud platforms (e.g., AWS, Azure, GCP), and API design principles., • A minimum of a Bachelor's degree in Computer Science, Information Technology, or a similar technical field.