python backend engineer jobs in London

Senior Backend Engineer – High-Scale Systems | Python & FastAPI | Security SaaS - Salary: £75k - £85k plus bonus - Location: Fully remote, (UK-based) - Sponsorship is not available for this role Prism Digital have partnered with a super interesting and niche VC-backed client specialising in attack surface management and automated red teaming. Their platform provides organisations with real-time...

Job Description Role: Backend Software Developer Salary: £100,000 P/A + Comps Location: London (Hybrid/Flexible working) Client: Start up/Scale Up Are you a Python expert ready to build cutting-edge systems powering real-world AI innovation? Join one of London's most exciting AI startups, where we're scaling fast and solving complex problems at the intersection of technology, data, and...

Java Back-End Developer (Azure / AWS) – Contract | London (Hybrid) Contract: 12+ months Location: London (Hybrid – 3 days onsite) We are supporting a consultancy delivering enterprise-scale technology programmes for a major client. They are seeking an experienced Java Back-End Developer with strong cloud (Azure/AWS) expertise to join a long-term engagement working on modern, microservices-based...

Senior Software Engineer Location: London (x3 days a week onsite) Salary: Up to £80k DOE Type: Perm Job Description We are looking for a passionate Senior Java Engineer in London to lead the design and development of core product features and services that power an app used by thousands of travellers on a daily basis. As a Senior Java Engineer for an loyalty program team, you will have the...

Lead Backend Engineer - Python London (Occasional travel) Salary: £95,000 - £120,000 + RSU's + Benefits An established, global technology business within the hospitality-tech industry is seeking an accomplished Principal Software Engineer to lead the design and delivery of next-generation digital solutions. This is an opportunity to shape greenfield projects from the ground up - architecting...

This role is with one of Dex’s trusted Partner companies. We work closely with their teams to truly understand their culture, goals, and what they’re looking for, so we can match you with the right opportunity for your goals! If you’re interested, apply here, or head over to Dex to find other opportunities with top tech companies, where you can truly find work that matters! We are partnering...

Senior Backend Engineer Location: London Work: On-Site Company Description Qoves is on track to become the next consumer tech unicorn. With over 2.5 million followers across our platforms, we have built one of the largest global communities around beauty, aesthetics and AI. In only a short time, we have become one of the fastest growing consumer tech companies in the world, pioneering...

Backend Engineer (AI Platform) - London £80k–£100k + EMI equity About the Role We’re hiring a Backend Engineer to build the core infrastructure behind Revax’s AI-native platform for professional services. You’ll design, optimise, and scale the systems that power multi-agent drafting, knowledge graphs, and auditable AI workflows used by accountants, tax advisors, and consultants at leading...

Senior Backend Engineer / Developer (TypeScript Node API) London / WFH to £100k Are you a senior technologist looking for an opportunity to progress your career in a hands-on role where you can make an impact? You could be joining a scaling tech company that has developed a digital distribution platform transforming electronic trading in the institutional FX options market via a central...

Affinity Labs: Founding Engineer (Backend) Location: London Area, United Kingdom · On-site Company Description At Affinity Labs, we’re building the future of company creation, a full-stack AI venture studio that partners with content creators to co-found authentic, scalable software businesses. By combining AI-native development with creator-led distribution, we're pioneering a new model of...

Backend Staff Engineer / Developer (Java AWS PostgreSQL) London / WFH to £120k Are you a backend focussed technologist with leadership skills? You could be progressing your career, in a senior, hands-on technical leadership role at a technology driven market research company that is scaling rapidly, having raised Series B funding of $60m, whilst enjoying hybrid working and a huge range of perks...

Senior Backend Engineer (Platform & Cloud) Location: London (Hybrid) Contract: 612 months Rate:Negotiable (DOE) Were working with a global enterprise organisation that is expanding a centralised engineering function supporting multiple product teams across an international portfolio. Theyre looking for a Senior Backend Engineer to join a core platform team responsible for building shared...

Job Description Backend Engineer (AI Platform) - London £80k–£100k + EMI equity About the Role We’re hiring a Backend Engineer to build the core infrastructure behind Revax’s AI-native platform for professional services. You’ll design, optimise, and scale the systems that power multi-agent drafting, knowledge graphs, and auditable AI workflows used by accountants, tax advisors, and...

Job Description 🚀 Senior Full-Stack Engineer (Backend-Leaning) – SaaS + AI Join a seed-stage SaaS startup backed by leading VCs, adopting AI to redefine their product. They’re pre-PMF, mid-pivot, and need a hands-on engineer (~80% coding) to help build, define, and scale. 💰 Comp: Up to £100k + strong early stack equity package 🧑 💻 What you’ll do - Full-stack engineering, backend-leaning...

Job Description Our Mission Ferry is pioneering a new wave of Manufacturing Operations Platforms for the AI age. Our software powers some of the largest manufacturers globally, providing the tools, insights & capabilities for them to revolutionize what & how they produce. We are backed by leading VC funds across both the US and Europe, and partner with some of the largest companies on Earth....

Python Developer | Python & FastAPI | Founding Engineer in High-Growth AI Venture Studio Contract | £400/day | Outside IR35 You’ll step in as a Founding Engineer within an early-stage AI venture studio that builds and launches creator-led B2C software businesses at speed. This is a backend-leaning role (circa 80% backend) where you will own core systems end to end, shaping APIs, designing data...

Senior Backend Engineer London (Occasional Travel required) Salary: £75,000 - £95,000 An established, global technology business within the hospitality-tech industry is seeking a talented Backend Software Engineer to help build and scale cutting-edge digital solutions. This is a chance to work on greenfield projects - building new, scalable products that help venues create seamless,...

Job Description 🚀 Senior Full-Stack Engineer (Backend-Leaning) – SaaS + AI Join a seed-stage SaaS startup backed by leading VCs, adopting AI to redefine their product. They’re pre-PMF, mid-pivot, and need a hands-on engineer (~80% coding) to help build, define, and scale. 💰 Comp: Up to £100k + strong early stack equity package 🧑 💻 What you’ll do - Full-stack engineering, backend-leaning...

Java Back-End Developer (Azure / AWS) – Contract | London (Hybrid) Contract: 12+ months Location: London (Hybrid – 3 days onsite) We are supporting a consultancy delivering enterprise-scale technology programmes for a major client. They are seeking an experienced Java Back-End Developer with strong cloud (Azure/AWS) expertise to join a long-term engagement working on modern, microservices-based...

Python Developer | Python & FastAPI | Founding Engineer in High-Growth AI Venture Studio Contract | £400/day | Outside IR35 You’ll step in as a Founding Engineer within an early-stage AI venture studio that builds and launches creator-led B2C software businesses at speed. This is a backend-leaning role (circa 80% backend) where you will own core systems end to end, shaping APIs, designing data...