26 to 50 of 81 Backend Developer Jobs in London

k + Benefits 2 days on site in North London 3 days remote I am recruting for a talented and driven Backend Engineer to join a dynamic team, focused on the creation and deployment of innovative software solutions. As a Backend Engineer, you will work closely with cross-functional teams, including engineering, product management, design, and quality assurance … features by working alongside engineering, product management, design, and QA teams. Promote best practices : Advocate and enforce coding standards, architectural patterns, and best practices. Your in-depth knowledge of backend technologies will help guide and support your peers, ensuring high-quality code. Automation and process improvement : Increase development efficiency, reliability, and scalability by creating automated processes that streamline workflows. … with Flask, FastAPI, or similar frameworks). Expertise in designing architectures that meet scalability, reliability, and security goals. Strong problem-solving skills, particularly in product development. Solid understanding of backend best practices, coding standards, and architectural patterns. Experience in automating builds (CI/CD), feature flags, and automated testing. Bonus Skills: Experience with message-driven systems (e.g., Google Pub 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 companys 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 were 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 a problem 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 companys 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 were 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 a problem 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 ❯

Role: Senior Backend Engineer (Node, TypeScript, AI tooling) Location: Remote across the UK Salary: 80-110k Were 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 role … in creative tools. What youll 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 were 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 to 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 ❯

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 ❯

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 ❯

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 ❯

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 ❯

Senior Backend Engineer | High-Growth Cybersecurity Scale-Up | Fully Remote (Global) Are you ready to build the core systems that power one of the fastest-growing cybersecurity platforms on the planet? ?? This is your chance to join a research-driven, venture-backed security scale-up thats trusted by some of the worlds biggest enterprises and critical infrastructure providers. Recognised … by Gartner, armed with $29M+ in funding, and scaling aggressively worldwide, theyre on a mission to reshape how organisations stay ahead of real-world cyber threats. As a Senior Backend Engineer , youll play a key role in building scalable, high-performance backend systems that ingest, process, and serve data on millions of assetshelping global security teams uncover exposures … before attackers do. What youll be doing: Designing and building backend services and data pipelines powering a cutting-edge cybersecurity platform Architecting scalable microservices and APIs to process massive volumes of security data Working closely with product and frontend teams to integrate backend services into the platform experience Continuously improving systems performance, deployment, and monitoring as the company 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 ❯

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 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 ❯

Senior Backend Software Engineer London (Hybrid) | Equity + Competitive Salary Join a fast-growing AI startup transforming a trillion-pound industry through intelligent automation. Were 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 Were looking for a Senior Backend Engineer to take ownership of key backend services that power our AI-driven platform. Youll work closely with product, frontend, and AI teams to design, build, and scale backend systems that … interactions. Youll join a small, high-calibre team where your ideas genuinely shape the direction of the product and the company. What Youll 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 ❯