Backend jobs in London
Senior Data Engineer
While primarily a <em>backend</em> engineering role, you will also support reporting via SSRS/Microsoft Power BI, with an increasing focus on AI-driven capabilities over time. As the Senior Data Engin...
Senior Software Engineer
Build reliable <em>backend</em> services and customer-facing functionality. Work closely with Product Managers and Designers to refine requirements and deliver solutions. Contribute to system design, ...
Senior Software Engineer in Test
Working closely with frontend and <em>backend</em> engineers to ensure critical paths are well understood, well tested, and production-ready. Participating in code and design discussions with a qualit...
Lead GenAI Full Stack Engineer / Managing Consultant
<em>Backend</em> Development: Experience in building microservices using either Python with FastAPI, or TypeScript with Express or equivalent. Frontend Development: Experience in building React applic...
Senior Agentic AI Consultant – Python / Full-Stack (London, Hybrid)
Full-stack development experience (frontend + <em>backend</em>). Proven track record of delivering AI projects from concept to deployment. Senior-level problem-solving skills and ability to work indep...
Senior Full-stack Python Typescript AI Engineer
This position is for a Senior <em>Backend</em> Developer working in python and typescript to support the development on a SaaS product with a focus on Ai. This role involves designing, building, and o...
React UI Developer
GraphQL or REST API co-design with <em>backend</em> teams; schema-first development and automated type generation. Track record of measurably improving engineering standards - patterns or tooling adop...
Software Developer
API Development: Build and maintain RESTful APIs in VB.NET and C#, integrating with SQL Server and SAP Business One <em>backend</em> tables. Database Management: Write optimized SQL queries, stored pr...
Chief Technology Officer
AI / Machine Learning / <em>Backend</em> Engineering. £90,000–£100,000 + Equity. London – Hybrid OR Remote Working within UK. I'm currently working with an early-stage, well-funded tech startup who ar...
Senior Founding Engineer
Building full-stack product features across web, <em>backend</em> services and data systems. Designing APIs and integrating with hardware and energy data platforms. Developing AI-enabled capabilities,...
Senior Engineer
You will bring a strong <em>backend</em> engineering foundation alongside hands‑on delivery capability, operating across multiple services and components. This role requires someone who takes ownershi...
Python Data Engineer
As a Data Engineer, you'll be part of a collaborative technical team, working across the data lifecycle: from designing ETL pipelines and integrating real-time data streams, to developing APIs and <em...
Full stack Software Engineer
Develop and maintain frontend and <em>backend</em> components using modern frameworks. Translate product requirements into clear technical decisions and implementation plans. Optimise performance, rel...
Blue Prism Consultant
Understanding of low‑code building tools and <em>backend</em> logic for advanced operations. 3. Analytical & Problem-Solving Skills. Process analysis, mapping and documentation. Ability to identify au...
React UI Developer
GraphQL or REST API co-design with <em>backend</em> teams; schema-first development and automated type generation. Track record of measurably improving engineering standards - patterns or tooling adop...
Senior Product Analyst (12 Month FTC)
Collaborate with <em>Backend</em> and Data Engineering teams to define necessary tracking and logging for new features.. Strategic Insight.. Partner closely with Product Managers, Engineers, Data Scie...
Android Engineer
Partnering with product owners, web and mobile engineers, and <em>backend</em> teams, you'll design and deliver new features, refine existing ones, improve performance, and streamline our platforms. Y...
Senior Software Engineer
Senior Software Engineer (<em>Backend</em>. Series A | eCommerce x Fintech | Meaningful equity. Buying clothes online still isn't a great experience. Sizing is inconsistent, returns are costly, and cu...
Senior Software Developer
You'll work across the full stack, building polished frontend experiences while also designing and developing Node.js APIs and <em>backend</em> services that power them. Key areas of work include. Bui...
Lead Software Development Engineer - Services
Capital One is looking for a Senior Software Development Engineer to join a <em>backend</em> team, based in our London office on a hybrid basis.. Our Engineers are people who lead by example, build st...
Software Engineering Manager - Services
Previous experience in our <em>backend</em> tech stack - Java, Spring, AWS and who is a strong advocate of tight feedback loops through mechanisms including, but not limited to automated tests, CI/CD ...
Senior Software Engineer
The work spans <em>backend</em> systems, platform engineering and security-focused product development; ideal for someone who enjoys combining technical depth with product and systems thinking. You'll...
Python Developer
Design, build, and maintain scalable <em>backend</em> services in Python. Contribute across the stack, including frontend components (Svelte / jQuery. Own features end-to-end, from design and developm...
Senior Data Engineer (Fintech & Payments)
Required Qualifications. 5+ years' experience in data engineering, analytics engineering, or <em>backend</em> engineering with strong ownership of data pipelines. Proven experience in stakeholder-heav...
Mobile Engineer (Kotlin Multiplatform)
You'll work cross-functionally with Engineering Leads, Product, Design, QA, and <em>Backend</em> teams to build outstanding mobile experiences for millions of users across Android and iOS. Experience....