develop Jobs in Mayfair

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...

C# Developer – Fixed Income OptionsLondon | Hybrid | Leading Options Market MakerA leading global options market maker is expanding its Fixed Income Trading team in London and is seeking a junior to mid-level C# Developer to join a high-impact, front-office engineering environment.You’ll work directly with traders, quants, and strategy developers t...

HCLTech is a global technology company, home to 219,000+ people across 54 countries, delivering industry-leading capabilities centered on digital, engineering and cloud, powered by a broad portfolio of technology services and products. We work with clients across all major verticals, providing industry solutions for Financial Services, Manufacturin...

HCLTech is a global technology company, home to 219,000+ people across 54 countries, delivering industry-leading capabilities centered on digital, engineering and cloud, powered by a broad portfolio of technology services and products. We work with clients across all major verticals, providing industry solutions for Financial Services, Manufacturin...

Job Specification – Senior Full-Stack DeveloperJob TitleSenior Full-Stack Developer (React & TypeScript/Node or C#/.NET)LocationHybrid / Remote (UK)Contract TypePermanentOverviewWe are seeking an experienced and hands-on Senior Full-Stack Developer to join a greenfield digital transformation programme. The successful candidate will play a key role ...

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 ...

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...

Title: Python DeveloperClient: Elite Multi-Strat FundLocation: London (hybrid)£££: Up to £160,000 Starting Base + Bonus + BenefitsThe Opportunity:We're looking to add a high-impact engineer to a small, specialised team responsible for the real-time risk and trading data platform that powers systematic strategies across the firm.You’ll operate at th...

Role: Python Software EngineerLocation: LondonCompensation: £150,000 per annum + Bonus & BenefitsSector: Leading FintechOverviewWe’re partnering with a prominent technology-driven finance firm seeking a skilled Python Developer to join their London engineering team. This is a chance to work alongside top-tier technologists from leading tech and tra...

iOS DeveloperHybrid Working - LondonMobile BankingLorien's leading banking client is looking for a number of experienced iOS Developers with strong experience of working in Mobile Development in Swift UI, alongside testing teams.This role is based in London.This role will be Inside IR35 Via UmbrellaWorking in a Hybrid Model of 2 days a week on site...