1 to 25 of 40 Backend Developer Jobs in London

Senior Python Backend Developer - Python, AWS, Django Central London/Hybrid -one day in the office £75-85k + benefits Were seeking a topflight Senior Python Backend Developer with a strong software engineering background including 8-9+ years majoring in writing Backend applications using Python and Django (Rest Framework). This is a … seriously weighty, complex, technically challenging role; the successful Backend Developer will be 'red hot' on the core backend skill requirements. Demonstrably the 'go to' person in your role. The Python Backend Developer will be joining a team of 45 at a world-class healthcare scaleup. With each integration of a new hospital group there is … Proactively respond to analytics to ensure our products are robust and meet users needs Take technical ownership of areas of product Required: 8-9+ years of experience writing Backend applications using Python and Django (Rest Framework) or related frameworks, e.g. Flask, FastAPI or similar Good understanding of ORM (either Django or SQLAlchemy) Good understanding of Python Unit Testing More ❯

Backend Developer Location: Hybrid - London Package: Negotiable + Benefits We are seeking a skilled and motivated Server-Side Developer to work on our Platform. It is a custom-built online quote, bind and formal documentation issuance platform, that also offers a range of analytics to assist with underwriting, portfolio analysis and product performance. You will be working … performance, and scalability. Troubleshoot and debug server issues, providing timely solutions. Implement security and data protection measures. Keep up to date with emerging trends, technologies, and best practices in backend development. About you: Experience as a Backend Developer or similar role. Proven high proficiency in ASP.NET and .NET (C#) and SQL. Experience with backend frameworks and More ❯

Backend Developer Location: Hybrid - London Package: Negotiable + Benefits We are seeking a skilled and motivated Server-Side Developer to work on our Platform. It is a custom-built online quote, bind and formal documentation issuance platform, that also offers a range of analytics to assist with underwriting, portfolio analysis and product performance. You will be working … performance, and scalability. Troubleshoot and debug server issues, providing timely solutions. Implement security and data protection measures. Keep up to date with emerging trends, technologies, and best practices in backend development. About you: Experience as a Backend Developer or similar role. Proven high proficiency in ASP.NET and .NET (C#) and SQL. Experience with backend frameworks and More ❯

Contract Backend Developer – Node.js Avanti Recruitment is working with a fast-growing London-based technology business developing smart systems for the property and compliance sector. Their platform integrates hardware and software to provide real-time insights and automated reporting across multiple environments. They’re seeking a Backend Developer with strong Node.js and GraphQL experience to help More ❯

Backend Developer This role is Hybrid, 3-4 days p/w in London, Camden. La Fosse are partnering with an exciting Ai Scale-Up , who are looking to extend their software development team. The successful candidate will be joining one of the core product development teams to help enhance their products and services. As a Backend Developer, you will be helping deliver ground-breaking Ai products to market, playing a pivotal role in designing, developing, and maintaining current and new capability. Key Requirements: Python Django GraphQL Kubernetes Git Excellent educational background Compensation: This role is offering up to £85,000 + benefits. How to apply: Please apply through the link on this page. More ❯

Backend Developer This role is Hybrid, 3-4 days p/w in London, Camden. La Fosse are partnering with an exciting Ai Scale-Up , who are looking to extend their software development team. The successful candidate will be joining one of the core product development teams to help enhance their products and services. As a Backend Developer, you will be helping deliver ground-breaking Ai products to market, playing a pivotal role in designing, developing, and maintaining current and new capability. Key Requirements: Python Django GraphQL Kubernetes Git Excellent educational background Compensation: This role is offering up to £85,000 + benefits. How to apply: Please apply through the link on this page. More ❯

Lead Backend Developer Location: London - 1x a month Salary: Up to £120,000 (D.O.E) + benefits Fruition Group are partnering with a high-growth Insurtech unicorn that's scaling its engineering function. This is a unique chance to work across both proven, revenue-generating products and greenfield initiatives that are reshaping the future of insurance. It's an … ideal role for a driven Lead Engineer who thrives in ambitious environments and wants to make a tangible impact. As a Lead Backend Engineer, you'll take ownership of designing and scaling cloud-native backend systems. You'll work primarily with Python (FastAPI) and play a key role in shaping the architecture of microservices that support millions of … decisions. This is a high-impact role where your work directly drives product growth, system resilience, and platform evolution. What will I be doing: Design, develop, and optimise scalable backend services in Python, leveraging FastAPI. Lead architectural discussions with a focus on performance, scalability, and reliability. Deliver complex features end-to-end - from design through deployment and monitoring. Provide More ❯

Senior Backend Developer Location: London - 1x a month Salary: Up to £95,000 (D.O.E) + benefits Fruition Group working with a leading Insurtech unicorn on a mission to transform the insurance industry. Their products have already generated millions in revenue, and now they're investing heavily in new innovations that will shape the sector for years to come. … This is an exciting opportunity for a motivated Senior Engineer who wants to grow in a high-performing, forward-thinking business. As a Senior Backend Engineer, you'll play a central role in building and scaling the systems that power their insurance platform. You'll focus on developing Python-based cloud microservices (FastAPI preferred), contributing to the architecture of More ❯

Senior Backend Developer Location: London - 1x a month Salary: Up to £95,000 (D.O.E) + benefits Fruition Group working with a leading Insurtech unicorn on a mission to transform the insurance industry. Their products have already generated millions in revenue, and now they're investing heavily in new innovations that will shape the sector for years to come. More ❯

Lead Backend Developer Location: London - 1x a month Salary: Up to £120,000 (D.O.E) + benefits Fruition Group are partnering with a high-growth Insurtech unicorn that's scaling its engineering function. This is a unique chance to work across both proven, revenue-generating products and greenfield initiatives that are reshaping the future of insurance click apply for More ❯

Senior Backend Developer (Python) Kings Cross, London- Onsite 2/3 days a week 6 month contract Inside of IR35 £750 - £800 per day My client is seeking a highly skilled software engineer to join its AI/ML team, contributing to the development of cutting-edge applications that accelerate drug discovery and enable personalised therapies. The ideal … candidate will have strong Python backend development experience, preferably with FastAPI, and be proficient in cloud-native infrastructure (Google Cloud preferred), DevOps practices, and automated testing. While a background in life sciences is a plus, a passion for improving healthcare through technology is essential. The role involves integrating AI/ML components into scalable web applications, collaborating across technical … teams, and continuously improving software quality and performance. Key responsibilities Back end development for a Python web application Integration of AI/ML components with frontend, backend, data and compute infrastructure Responsible for high quality software implementations according to best practices, including automated test suites and documentation Develop, measure, and monitor key metrics for all tools and services and More ❯

Senior Backend Developer (PHP/Laravel ) - Orpington Hyb rid | Orpington Full-Time | Salary £60,000 - £75,000 Join a fast-growing tech company disrupting the entertainment space. Our client is building a platform that delivers subscription-based services to consumers, and they need a backend wizard to help them scale. Your Role Build fast, scalable systems with More ❯

Infastructure/Backend Developer Contract Type: 6-month initial engagementStart Date: 1st December 2025Location: Remote (UK-based)Rate: £350 per day (Inside IR35)Clearance Required: BPSS prior to start MUST HAVE NHS OR GOVERNMENT EXPERIENCE Role OverviewThe client is seeking a mid-to-senior level contractor with strong backend and infrastructure development experience. The successful candidate will … 3rd line support and develop tools to streamline support operations* Apply test-driven development and CI/CD methodologies in an Agile environment The ideal candidate will:* Have strong backend development experience, ideally with SQL and RDS* Demonstrate excellent problem-solving skills and a passion for working with data* Be comfortable working with legacy Oracle PL/SQL code More ❯

Infastructure/Backend Developer Contract Type: 6-month initial engagement Start Date: 1st December 2025 Location: Remote (UK-based) Rate: £350 per day (Inside IR35) Clearance Required: BPSS prior to start MUST HAVE NHS OR GOVERNMENT EXPERIENCE Role Overview The client is seeking a mid-to-senior level contractor with strong backend and infrastructure development experience. The … 3rd line support and develop tools to streamline support operations * Apply test-driven development and CI/CD methodologies in an Agile environment The ideal candidate will: * Have strong backend development experience, ideally with SQL and RDS * Demonstrate excellent problem-solving skills and a passion for working with data * Be comfortable working with legacy Oracle PL/SQL code More ❯

Job Title: BackEnd Technical Support Developer Location: London, UK Work Pattern: Hybrid – 3 days onsite, 2 working from home Salary: up to £50,000 per annum + on call bonus Job Position: Permanent Additional Info: This position does require you to be on call every 5th week (extra pay on top of your salary) We are looking for … a dedicated BackEnd Technical Support Developer to help handle production issues. This includes working with the company’s clients and customer success team to identify the source of a technical problem and then fixing those problems. This role covers a lot of technologies, from UI, React, system configuration, Node.js backend code, databases and AWS hosting. So this … is a great opportunity to learn and expand all those skills. What we’re looking for from a Back End Developer: The right candidate needs to be hungry to learn, a good problem solver and can prioritise what is important and get it done. It is very much a role that is a combination of a digital detection and More ❯

Job Title: BackEnd Technical Support Developer Location: London, UK Work Pattern: Hybrid – 3 days onsite, 2 working from home Salary: up to £50,000 per annum + on call bonus Job Position: Permanent Additional Info: This position does require you to be on call every 5th week (extra pay on top of your salary) We are looking for … a dedicated BackEnd Technical Support Developer to help handle production issues. This includes working with the company’s clients and customer success team to identify the source of a technical problem and then fixing those problems. This role covers a lot of technologies, from UI, React, system configuration, Node.js backend code, databases and AWS hosting. So this … is a great opportunity to learn and expand all those skills. What we’re looking for from a Back End Developer: The right candidate needs to be hungry to learn, a good problem solver and can prioritise what is important and get it done. It is very much a role that is a combination of a digital detection and More ❯

Node Developer Remote Working Lynx are currently working with a large IT consultancy to help them source a Node Developer. Our client is large global Consultancy who work with enterprise clients, solving their business and technology problems using cutting edge Solutions. Responsibilities : Design, implement, and manage backend applications and APIs using Node.js Work with RESTful APIs and external More ❯

Node Developer Remote Working Lynx are currently working with a large IT consultancy to help them source a Node Developer. Our client is large global Consultancy who work with enterprise clients, solving their business and technology problems using cutting edge Solutions. Responsibilities : Design, implement, and manage backend applications and APIs using Node click apply for full job details More ❯

roles where your newly learned skills can be applied meaning a vast array of opportunities are now available to you. Examples of some of these are listed below: - Junior Developer Website Support Developer Junior Web Developer Content Editor Wordpress Developer Junior Software Developer Junior Front or Back End Development Development Support We have been helping More ❯

Join a top-tier London consultancy partnering with a major insurance client to develop innovative analytics and actuarial solutions. Were looking for an experienced backend software engineer to take a leading role in the evolution of a cutting-edge internal platform used by actuaries and data scientists across the business. KeyResponsibilities Leadfeaturedevelopmentonahigh-impactanalyticsplatform,withafocusonperformance,scalability,andlong-termmaintainability. Bridgeandoptimisetheintegrationbetween C# More ❯

Backend Software Engineer Term: 6 Months Pay: £888 per day Inside IR35 Location: Kings Cross London Hybrid Our client see a world in which advanced applications of Machine Learning and AI will allow us to develop novel therapies to existing diseases and to quickly respond to emerging or changing diseases with personalized drugs, driving better outcomes at reduced cost … will be committed to your career and development from day one. Key responsibilities Back end development for a Python web application Integration of AI/ML components with frontend, backend, data and compute infrastructure Responsible for high quality software implementations according to best practices, including automated test suites and documentation Develop, measure, and monitor key metrics for all tools … technical staff and data engineers in the team and across allied teams, to build an end-to-end pipeline consuming other data products Basic qualifications: Demonstrated experience of Python backend development (e.g. using FastAPI) Bachelors degree in a relevant field (including computational, numerate or life sciences), or equivalent experience Cloud experience (e.g. Google Cloud and cloud run preferred) including More ❯

further and allow the company to help even more job seekers save time by automating job applications and building tools they love using. Job description We’re hiring a backend developer to join our Auto-Apply team. This team is building a system that automatically finds the best jobs for users, fills out applications on their behalf, and … dashboard. Build and maintain automation for job application flows across multiple ATS systems Add new integrations so we can support more users and more job platforms Work on the backend services that power job search, matching, and application submission Collaborate closely with the frontend and product teams to deliver fast, reliable user experiences Write clean, maintainable code and contribute … to system design discussions Help improve the performance and scalability of our job search and application engine Our Stack Auto-Apply: Playwright, Python, FastAPI, Meilisearch Main web backend: Laravel (PHP), Vue.js Requirements Strong backend development skills (Python or PHP experience preferred) Comfortable working with APIs, integrations, and external systems Familiarity with Playwright or browser automation is a big More ❯

Senior Backend Software Engineer – London (Hybrid) | Equity + Competitive Salary Join a fast-growing AI startup transforming a trillion-pound industry through intelligent automation. We’re building the next generation of workflow technology - streamlining complex, manual processes and empowering professionals to focus on the work that truly matters. If you love solving deep technical problems, shaping architecture, and seeing … your code have a real-world impact, this is a chance to build something meaningful from the ground up. 💡 The Role We’re looking for a Senior Backend Engineer to take ownership of key backend services that power our AI-driven platform. You’ll work closely with product, frontend, and AI teams to design, build, and scale backend … ll join a small, high-calibre team where your ideas genuinely shape the direction of the product and the company. 🔧 What You’ll Be Doing Architect, design, and build backend applications using Node.js (TypeScript) and NestJS . Develop microservices and event-driven systems with asynchronous communication patterns. Write clean, maintainable, and well-tested code (unit + integration). Design More ❯

Senior Backend Software Engineer – London (Hybrid) | Equity + Competitive Salary Join a fast-growing AI startup transforming a trillion-pound industry through intelligent automation. We’re building the next generation of workflow technology - streamlining complex, manual processes and empowering professionals to focus on the work that truly matters. If you love solving deep technical problems, shaping architecture, and seeing … your code have a real-world impact, this is a chance to build something meaningful from the ground up. 💡 The Role We’re looking for a Senior Backend Engineer to take ownership of key backend services that power our AI-driven platform. You’ll work closely with product, frontend, and AI teams to design, build, and scale backend … ll join a small, high-calibre team where your ideas genuinely shape the direction of the product and the company. 🔧 What You’ll Be Doing Architect, design, and build backend applications using Node.js (TypeScript) and NestJS . Develop microservices and event-driven systems with asynchronous communication patterns. Write clean, maintainable, and well-tested code (unit + integration). Design More ❯

Join a top-tier London consultancy partnering with a major insurance client to develop innovative analytics and actuarial solutions. Were looking for an experienced backend software engineer to take a leading role in the evolution of a cutting-edge internal platform used by actuaries and data scientists across the business. KeyResponsibilities Leadfeaturedevelopmentonahigh-impactanalyticsplatform,wi click apply for full job More ❯