22 of 22 Backend Developer Jobs in Central London

Senior Backend Developer - Up to £700pd Inside IR35 - Full Remote One of the most recognisable financial services companies in the UK is on the hunt for Backend Engineers. They are revolutionizing the way people manage their money and would love YOU to help them on their journey! You will be responsible for building scalable, high-performance Back … or other cloud platforms Strong test driven development Strong scalability and performance mindset Location - Full remote (from the UK) Duration - 6 months Rate – Up to £700pd inside IR35 Senior Backend Developer - Up to £700pd Inside IR35 - Full Remote More ❯

Senior Backend Developer - Up to £700pd Inside IR35 - Full Remote One of the most recognisable financial services companies in the UK is on the hunt for Backend Engineers. They are revolutionizing the way people manage their money and would love YOU to help them on their journey! You will be responsible for building scalable, high-performance Back … or other cloud platforms Strong test driven development Strong scalability and performance mindset Location - Full remote (from the UK) Duration - 6 months Rate – Up to £700pd inside IR35 Senior Backend Developer - Up to £700pd Inside IR35 - Full Remote More ❯

Senior Backend Developer - Up to £700pd Inside IR35 - Full Remote One of the most recognisable financial services companies in the UK is on the hunt for Backend Engineers. They are revolutionizing the way people manage their money and would love YOU to help them on their journey! You will be responsible for building scalable, high-performance Back … or other cloud platforms Strong test driven development Strong scalability and performance mindset Location - Full remote (from the UK) Duration - 6 months Rate – Up to £700pd inside IR35 Senior Backend Developer - Up to £700pd Inside IR35 - Full Remote 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 ❯

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 ❯

Title: Node.js Backend Developer Salary: up to £80,000 + share options Location: Fully remote (UK) Sector: Cybersecurity SaaS We’re supporting a high-growth cyber SaaS scale-up on the hire of a Node.js Backend Developer to own production APIs and serverless microservices. You’ll work with senior engineers to design, build and operate secure 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 (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 ❯

Role: Senior Backend Engineer (Node, TypeScript, AI tooling) Location: Remote across the UK Salary: £80-110k We’re kicking off a project with a well-funded AI research and product company focused on building advanced tools for creative professionals. The team works on generative AI technologies that help people create images, video, and interactive content more efficiently. The … creative tools. What you’ll do ✨ Build interactive, browser-based experiences powered by generative AI ✨ Design and implement API-driven features using Node + TypeScript ✨ Collaborate with ML and backend teams on real-time media + collaboration tools ✨ Ship high-quality code and improve performance, reliability, and scalability What we’re looking for ✔️ 4 years’ + experience as a … software engineer (backend focus) ✔️ Strong TypeScript ✔️ Architecting production-ready cloud systems ✔️ Hands-on experience building and integrating APIs ✔️ Comfortable with cloud concepts (storage, CDNs, queues, serverless) This is a chance to join a high-ownership team, ship user-facing features at scale, and work at the frontier of AI + creativity. 📩 Interested? Apply now or drop me a message More ❯

products, reduce fraud and identify innovative ways for them to tackle business challenges through their in-app, online and face-to-face payments. We are seeking a passionate Senior Backend Scala Developer to join our API Team. Your primary objective is to support and expand our new "Shodan" payment platform. This is built almost entirely in Scala, based More ❯

products, reduce fraud and identify innovative ways for them to tackle business challenges through their in-app, online and face-to-face payments. We are seeking a passionate Senior Backend Scala Developer to join our API Team. Your primary objective is to support and expand our new "Shodan" payment platform. This is built almost entirely in Scala, based 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 ❯

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 ❯

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 ❯

Senior Back End Developer/Engineer (TypeScript Node.js) Remote UK to £80k Are you a senior, hands-on Back End Developer looking for an opportunity to take ownership and progress your career at a scaling tech company? You could be joining a growing games company that combines state of the art technology, gaming and luxury fashion. As a … Senior Back End Developer you'll join the team as they scale the product to support millions of users. You'll design and deliver high-quality, maintainable backend code and features using TypeScript and Node.js that is aligned with established codebase architectural standards and covered by tests as well as supporting backend system performance and reliability, helping … design, implement and extend robust APIs and microservices supporting gameplay, user management, platform and content management systems, collaborating with product and game teams to ensure alignment of features with backend architecture and with DevOps to ensure uptime, observability and deployment reliability. This is a senior role where you'll take ownership of complex systems and proactively address potential performance More ❯

Backend/Automation Engineer 💰 £80k + equity | 🏙️ 3–4 days a week in Waterloo Our client is an early fintech start-up on a mission to help people save effortlessly across all parts of life, from insurance to pet food. 🐶💸 You’ll be building V1 of our customer-facing platform , creating automation tools that connect to Gmail, open banking … APIs, and insurance forms. What you’ll be working with: 💻 Python (FastAPI) on the backend ⚛️ React on the frontend 🤖 Selenium/Playwright/Puppeteer for automation ☁️ AWS and database cross-referencing 🏦 Open banking and fintech integration experience a huge plus If this sounds like something that matches you and what you're looking for in your next challenge then More ❯

Senior Backend/Full Stack Ruby Developer – Profitable SaaS Scale-Up | Up to £85k + Excellent Benefits | Hybrid (London) I am working with a long term client of Opus, who is a profitable, investment-backed SaaS company with serious growth plans! We’re hiring Backend-focused Ruby Developers or Full Stack Ruby Developers with modern JavaScript experience More ❯

Backend Engineer (Kotlin) – Hybrid (London) – Up to £95k 💰 Join a fast-growing cleantech company as a Backend Kotlin Engineer that is driving the global shift to clean, affordable energy through an integrated hardware and software smart-grid platform focused on residential EV charging. By leveraging data, AI, and strong industry partnerships, they connect cars, chargers, people, and energy … providers to place consumers at the heart of the energy transition. 🚀 What You'll Do: 🧱 Contribute to scalable backend infrastructure built in Kotlin ✅ Write clean, maintainable, tested code in production 🧠 Shape tech strategy and architecture with new ideas and tools 🤝 Work closely with Product Owners and team members to deliver value 👨‍🏫 Mentor junior developers and support their growth 🧠 What More ❯

Backend Engineer (Kotlin) – Hybrid (London) – Up to £95k 💰 Join a fast-growing cleantech company as a Backend Kotlin Engineer that is driving the global shift to clean, affordable energy through an integrated hardware and software smart-grid platform focused on residential EV charging. By leveraging data, AI, and strong industry partnerships, they connect cars, chargers, people, and energy … providers to place consumers at the heart of the energy transition. 🚀 What You'll Do: 🧱 Contribute to scalable backend infrastructure built in Kotlin ✅ Write clean, maintainable, tested code in production 🧠 Shape tech strategy and architecture with new ideas and tools 🤝 Work closely with Product Owners and team members to deliver value 👨‍🏫 Mentor junior developers and support their growth 🧠 What More ❯