develop Jobs in Mayfair

Join a leading quantitative trading firm where technology is at the heart of every trading decision. My client is looking for a highly skilled C++ Engineer to work directly with Quant Traders and Quant Researchers, building and optimising the systems that power a global market-making business.What you'll do:Develop and enhance ultra-low-latency tra...

Mid-Senior Fullstack Developer (Python/React)Up to £80k plus equity1 day p/week in LondonFull-Stack Developer (Python / React)Fullstack Developer (Python/React) – Would you like to work for a fast-growing VC-backed energy technology startup who are currently looking for a Full-Stack Developer to join its expanding product development team.They curr...

Mid-Senior Fullstack Developer (Python/React)Up to £80k plus equity1 day p/week in LondonFull-Stack Developer (Python / React)Fullstack Developer (Python/React) – Would you like to work for a fast-growing VC-backed energy technology startup who are currently looking for a Full-Stack Developer to join its expanding product development team.They curr...

Role SummaryAubay UK is seeking a Senior C++ Software Engineer to join a high-performing team responsible for a global derivatives algorithmic trading platform. Working closely with technologists, quants, and traders, you will design and optimise proprietary trading systems with a strong focus on performance, reliability, and scalability.The role s...

We're Hiring: Senior Python & LLM Developer (10+ Years Experience)Are you passionate about building intelligent systems powered by Large Language Models (LLMs), Agentic AI, RAG Architectures, and Conversational AI?We are looking for a highly skilled Senior Python & LLM Developer to join our AI engineering team and help shape the next generation of ...

We are partnering with one of London’s most selective and highest-performing quantitative investment funds to appoint a Senior Quant Software Developer to their core systematic trading group. This is a confidential mandate for a team renowned for world-class engineering standards, scientific rigour, and a culture built around high impact and low eg...

Senior ERM / Exposure Management Developer (Contract)Location: London - 2 days per week in the City of LondonDay rate: 750 Inside IR35Duration: 6 months (potential extension)A global (re)insurance organisation is seeking a Senior Full Stack Developer to support and enhance enterprise ERM / Exposure Management platforms. This contract role focuses o...

Role SummaryAubay UK is seeking a Senior C++ Software Engineer to join a high-performing team responsible for a global derivatives algorithmic trading platform. Working closely with technologists, quants, and traders, you will design and optimise proprietary trading systems with a strong focus on performance, reliability, and scalability.The role s...

Job Title: Core Java / Backend Developer – Solution Delivery (Microservices)Location: London (8 days onsite/month)Contract: Inside IR35Duration: 12 months + extStart Date: ASAPOverview:We are looking for a hands-on Core Java Developer to support the migration of a legacy application into a modern event-driven, service-oriented architecture within a...

Senior C# .NET Developer (Contract) Remote London (1 day per week in office)£475 per dayOutside IR35A well-established and highly specialised organisation operating within the infrastructure and environmental services sector is seeking an experienced Senior C# .NET Developer to join their team on a contract basis. This role will focus on enhancing ...