Senior Backend Developer Python jobs in London

Company Description Mohkam Media Ltd specializes in AI-powered systems that help businesses capture every customer inquiry, ensuring no opportunity is missed. Our innovative solutions, including AI voice reception systems, inquiry capture automation, AI chat assistants, and lead follow-up workflows,

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 downl

C#/ Azure Backend Developer. Cyber Security firm . £80,000-£90,000 + Benefits. Hybrid London 3 days a week in the office. My client is a leading provider of innovative solutions in the cybersecurity sector and dedicated to enhancing efficiency, improving security and driving success for their client

Python Developer | £50 - £60 per hour We're working with a leading global financial technology partner at the forefront of Equities Derivatives innovation on this exciting opportunity. This is a high-impact role within the fastest-growing area of Equities Derivatives Technology, focusing on the soph

About Marex Marex Group plc (NASDAQ: MRX) is a diversified global financial services platform providing essential liquidity, market access and infrastructure services to clients across energy, commodities and financial markets. The group provides comprehensive breadth and depth of coverage across fo

Backend Software Engineer – Python / FastAPI / Event-Driven Architecture (AI Agents / FinTech) Role: Backend Software Engineer - Python Location: London, UK (Hybrid) Type: Full-time Level: Mid to Senior Salary: £70,000 – £100,000 About the Role We’re building an AI-native financial platform designed

Are you a backend developer who enjoys solving complex data problems and building robust, scalable systems? Do you want your work to power digital experiences for leading arts, culture, and heritage institutions worldwide? Keepthinking is looking for a Backend Developer to join our growing team and

Who We Are Galaxy is a global leader in digital assets and data center infrastructure, delivering solutions that accelerate progress in finance and artificial intelligence. We believe that blockchain and digital asset innovation will transform how value moves through the world – and we’re building t

IDAM Back-end Java Developer - SC Cleared | £500 - £535 We're working with a global tech powerhouse delivering mission-critical digital transformation for the UK public sector on this exciting opportunity. We are seeking a high-caliber Senior Java Developer with deep IDAM expertise to spearhead a ma

Backend Python Engineer, AI & Data London / Remote (South East based, occasional travel to London) £45,000 - £55,000 DOE We are working with an exciting AI-first engineering firm in the enterprise retail and e-commerce space who are building some really interesting products across generative AI,

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 downl

Mid Level C#/ Azure Backend Developer. Cyber Security firm . £50,000-60,000 + Benefits. Hybrid London 3 days a week in the office. My client is a leading provider of innovative solutions in the cybersecurity sector and dedicated to enhancing efficiency, improving security and driving success for the

Join Nordcloud and be part of the European cloud revolution. We supercharge our customers to innovate in hyperscaler cloud, enabling seamless migration, advanced security, and data-driven success. Senior Python Developer (AI‑Augmented) Level: Senior (5–7 years) Location: [London / Hybrid policy] Emp

We are recruiting a Python Developer for a major energy trader (£200bn T/O). The role is focused on the Digital / Automation space and sits within the Quant Engineering Group. The brief is to develop new and innovative solutions using the latest technologies (LLM, IDP) for the Finance, Risk, Treasur

Quant Developer (Library Quant – Rates) | C++ / Python Leading Hedge Fund | London Compensation: Highly competitive We are hiring a Quant Developer (Library-focused) to build and enhance core pricing and risk libraries within a leading hedge fund platform. This role sits close to the trading desk ,

KodeLab

Power the Core of Fintech Innovation: Senior Back-End Developer at Kodelab At Kodelab, we are shaping the future of fintech, blockchain, and AI-powered solutions. Our back-end infrastructure is the backbone of our success, powering everything from secure financial transactions to AI-driven platforms

Lead Python Developer / Software Engineer London / WFH to £120k Are you a skilled Python Developer with team leadership experience? You could be progressing your career at a well-funded and profitable FinTech start-up. As a Lead Python Developer you'll head up a small, talented tech team to deliver

Backend Software Engineer / Developer (Python) London / WFH to £100k Opportunity for a skilled Software Engineer with strong backend Python skills to join a well-funded and profitable FinTech start-up. As a Backend Software Engineer you'll join a small, talented tech team to deliver new features and

Mindrift

Please submit your CV in English and indicate your level of English proficiency. Mindrift connects specialists with project-based AI opportunities for leading tech companies, focused on testing, evaluating, and improving AI systems. Participation is project-based, not permanent employment. About the

Back End Developer Placement Programme We're working with a leading UK tech talent accelerator and CompTIA Gold Partner on this exciting opportunity. This programme is specifically designed to bridge the UK skills gap by transforming ambitious beginners into industry-ready developers through intensi