Programmer Jobs in Belsize Park

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'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 ...

Overview Insight Global is looking for a Senior Developer to join the Integration team within an global financial services organisation, enabling faster and more consistent onboarding of new applications and data feeds into business-as-usual platforms. The team builds reusable services, APIs and supporting infrastructure (leveraging AWS native serv...

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 Back End Developer, Golang | Social Media, Scale-Up, 18 Million Users | Salary Up to £85,000 + Benefits & Bonus (EU/UK Remote)We’re seeking a talented Back-End Developer with strong experience in Golang to join a fast-growing social media mobile application, withover 18 million downloads.The Company:The company is profitable and therefor...

Senior Quantitative Developer – Research Team – Systematic Fund – London – Hybrid – Up to £500k TCMy client is a systematic quantitative fund operating at the highest level of global markets. The kind of firm that benchmarks itself against Jane Street, Two Sigma, and the best technology companies in the world. Research and engineering are inseparab...

Project Developer – London, UK - Full-Time - Renewable EnergyAre you ready to shape the future of clean energy across Europe?We’re partnering with a fast‑growing, privately backed renewable energy developer headquartered in London. Known for their entrepreneurial culture and strong pipeline across multiple European markets, they specialize in origi...

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...

🚀 Hiring: Sr. Python DeveloperWe have urgent openings with Our Reputed Client (a leading consulting company)📍 Location: London (Hybrid – 3 days office)🕘 Timings: 9:00 AM – 5:30 PM📄 Type: Permanent & 6-month Contract (direct)Salary/rates- open to discuss💼 Role Focus:Core Python Backend DevelopmentData Analytics & Application DevelopmentTrading ...

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...