10 developer jobs found

Senior C# Developer - .Net 9, AWS (Lambda, SQS, SNS, EventBridge) - OUTSIDE IR35 .NET 8/9 • AWS Lambda/SQS • OUTSIDE IR35 £700–£800/day • 100% Remote (UK) • 11‑months rolling If you’re a deeply senior C# engineer who wants to actually build something new, not maintain legacy, not refactor someone else’s mess, this is one of the few roles in the market worth stopping for. You’ll be the technical spearhead for a greenfield SaaS platform, reporting directly to the Director of Engineering and shaping everything from architecture to AI‑native delivery patterns. This is high‑autonomy, high‑impact work for someone who thrives in ambiguity and loves solving hard problems at pace. Why this role stands out: You set the engineering bar, not follow it. You get to embed agentic AI workflows into real production systems. You own outcomes end‑to‑end, not just “tickets”. You influence product direction without layers of process or ceremony. What You’ll Bring:...

We're partnering with a leading energy trading organisation at the forefront of global commodities markets, currently investing heavily in their ETRM platform. As part of this growth, they're looking for an experienced Java Developer to join a high-performing engineering team delivering scalable, front-to-back trading solutions. This is a standout opportunity for a strong Java engineer with energy trading exposure who is keen to step into the world of Endur ETRM and OpenComponents, gaining highly sought-after domain and platform expertise  The Opportunity You'll work on business-critical systems that support trading, risk, and operations across power, gas, and wider commodities markets. The role blends core Java engineering with the chance to quickly upskill in Endur, supported by a team of experienced SMEs. This is ideal for someone looking to bridge the gap between pure software engineering and specialist ETRM platforms Responsibilities Designing and...

🚀 Senior Front-End Engineer – Investment Banking | Contract Upto £800 p/d (Outside IR35) | London / Hybrid (1 Day/Week in Office) We are partnering with a global investment bank to hire a Senior Front-End Engineer to join a flagship team delivering a next-generation, single-page application (SPA) platform for high-performance derivatives trading. This is a high-profile role on a mission-critical, front-office system with exceptional technical standards. You’ll work at the cutting edge of financial technology, contributing to a modern, reactive web platform used across trading desks. This is not your typical enterprise UI – it’s fast, data-intensive, and built to scale with real-time demands in a trading environment. 💼 The Opportunity Collaborate with elite engineers on a SPA used across the investment bank for derivatives trading. Build elegant, high-performance UIs with real-time data updates and functional programming paradigms. Shape a front-end...

Build Engineer | Bazel 📍 Bristol (Temple Meads) 🏠 Hybrid - 2 days in the office, 3 days wfh 💶 Up to £750/day - Outside IR35 📄 12 months contract, possible extensions 5V Tech are working with a fast-growing deep tech company building a completely new class of AI accelerator hardware and software from first principles. They’re now looking for an engineer to take ownership of Bazel at scale and build the tooling infrastructure that powers the entire engineering organisation. This is a genuinely high-impact role in a greenfield environment, where you’ll help shape the build systems, developer workflows, and CI infrastructure from the ground up. What you’ll be working on: • Designing and owning Bazel rules and extensions • Scaling a large monorepo across Python, C++, Rust, SystemVerilog, and ML workloads • Building reproducible, multi-language build pipelines • Optimising CI performance across large compute clusters • Improving the developer...

Build Engineer | Bazel 📍 London 🏠 Hybrid - 2 days in the office, 3 days wfh 💶 Up to £750/day - Outside IR35 📄 12 months contract, possible extensions 5V Tech are working with a fast-growing deep tech company building a completely new class of AI accelerator hardware and software from first principles. They’re now looking for an engineer to take ownership of Bazel at scale and build the tooling infrastructure that powers the entire engineering organisation. This is a genuinely high-impact role in a greenfield environment, where you’ll help shape the build systems, developer workflows, and CI infrastructure from the ground up. What you’ll be working on: • Designing and owning Bazel rules and extensions • Scaling a large monorepo across Python , C++ , Rust , SystemVerilog, and ML workloads • Building reproducible, multi-language build pipelines • Optimising CI performance across large compute clusters • Improving the developer...

🚀 Job Opportunity: Senior C# Quantitative Risk Developer | Capital Markets Technology Location: London Type: Full-time / Contract Rate: £800 p/d (Outside IR35) Client: Leading Global Investment Bank Hybrid: 1 day per week in the office Are you ready to be at the forefront of technology and finance? Our client, a top-tier investment bank, is looking for a Senior C# Quantitative Risk Developer to join their high-impact Capital Markets Technology team in London. This is a unique opportunity to bridge the worlds of quantitative analysis and software engineering—delivering cutting-edge solutions to drive pricing, risk management, and liquidity strategies in real-time trading environments. 🔍 About the Role As a Senior Quantitative Developer, you’ll collaborate closely with quantitative analysts, traders, and fellow technologists to develop and optimize core components of the bank’s pricing, risk and valuations infrastructure. You'll be responsible for...

Platform Delivery Lead 📍 London (Hybrid – 2 Days Per Week) 💰 £650-720 per day 📄 Contract Opportunity (Outside IR35) 📅 Initial 6-Month Contract I'm currently supporting a leading travel and loyalty organisation on the search for an experienced Platform Delivery Lead to take ownership of a business-critical SaaS platform that supports millions of customer transactions and interactions. This is an excellent opportunity for someone who enjoys operating at the intersection of technology, delivery and stakeholder management, working closely with senior business leaders, engineering teams and third-party technology partners. The Opportunity You'll be responsible for ensuring the successful delivery, operation and ongoing evolution of a critical customer platform, balancing business demand with platform stability, governance and long-term sustainability. This role sits at the heart of a complex technology ecosystem and will play a key role in driving delivery...

Service Architect +Current DV Clearance is essential +On site in Hampshire +18 months + +Outside IR35 +£650 - £750 a day We're seeking an experienced Service Architect to join a high-profile Ministry of Defence (MOD) programme on a long-term contract. This is an excellent opportunity to play a key role in designing and delivering secure, resilient, and supportable services within a complex defence environment. Key Responsibilities Design and develop end-to-end service architecture aligned with business and technical requirements. Produce service designs that meet operational, security, and supportability standards. Work closely with technical architects, engineering teams, service management, and stakeholders. Ensure service transition and operational readiness for new and enhanced services. Contribute to service governance, risk management, and continual service improvement. Create and maintain service design documentation, operating models, and support...

Service Architect +Current DV Clearance is essential +On site in Hampshire +18 months + +Outside IR35 +£650 - £750 a day We're seeking an experienced Service Architect to join a high-profile Ministry of Defence (MOD) programme on a long-term contract. This is an excellent opportunity to play a key role in designing and delivering secure, resilient, and supportable services within a complex defence environment. Key Responsibilities Design and develop end-to-end service architecture aligned with business and technical requirements. Produce service designs that meet operational, security, and supportability standards. Work closely with technical architects, engineering teams, service management, and stakeholders. Ensure service transition and operational readiness for new and enhanced services. Contribute to service governance, risk management, and continual service improvement. Create and maintain service design documentation, operating models, and support...

Senior Project Manager/Programme Manager - BI Data Reporting/BI Dashboard London, City - £750-950 per day, outside IR35. Agile, BI, Data, Dashboard, Business Intelligence A City-based insurance specialist needs a Programme Manager to manage a portfolio of strategic Business Intelligence projects using enterprise-level systems from start to implementation. This is a great opportunity to join a growing specialist UK insurance company at a point where the business is aiming to improve its use of data and business intelligence. The Programme Manager will engage and lead resources (internal and vendor) related to a series of projects (Architects, BA's, Developers) and deliver results based on the requirements of senior level stakeholders with a view to improved MIS, improved visibility, and better Business Intelligence (BI) functionality. Key Responsibilities: Managing a portfolio of BI projects Delivering a series of large scale end to end dashboard projects...