1 to 25 of 26 Backend Developer Jobs in London

Senior Backend Developer (C#/.Net) | Brand New Trading Payments Desk | £130,000 + Bonus + Benefits | London Hybrid I am looking for a Senior Backend Engineer with a .Net (C#) focus for a Trading House that build cross asset trading systems. The FinTech are building from … ground up and currently expanding their team to work on a completely greenfield build, payments platform. As a Senior Backend, your role will be to come in and build out a new Payments platform working very closely with another engineer to redesign parts of the system and lead from ...

Back End Developer (C#, .NET, SQL) We're supporting a well-backed SaaS scale-up in the learning-tech space who are hiring a Backend Developer to join their growing engineering team. If you enjoy building real features end-to-end, not just patching bugs, this … great fit. What you’ll be doing Building and maintaining backend services in C#, ASP.NET, .NET Working heavily with MS SQL and API development Contributing to new feature design, architecture discussions, and code reviews Helping shape a platform used by thousands of users Collaborating with a small, supportive team ...

Backend Developer - Fully Remote - £60K + Benefits My client is a small but fast-moving tech start-up on a mission to build something genuinely game-changing. The company is still early in their journey, small team, big ideas and they're looking for someone who wants … your work directly impacts the roadmap, and where you'll grow alongside the company, get in touch. The Role My client is hiring a Backend Developer who's passionate about building scalable, reliable backend systems in a modern stack. You'll be one of the first engineering ...

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 … 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 ...

Senior Backend Developer £70,000 - £80,000 GBP Performance bonus, 28 days leave + bank holidays, Private Medical Insurance Hybrid WORKING Location: Central London, Greater London - United Kingdom Type: Permanent Role: Senior Backend Engineer Salary: Up to £80k + performance bonus and benefits Location: London (Hybrid … data processing, and user experience . The environment is supportive, valuing creativity, continuous learning, and flexibility through hybrid working. They are seeking a Senior Backend Engineer to build highly scalable and maintainable services using modern technologies.. What You'll Do: Develop backend services in Python (FastAPI/Django ...

Senior Backend Developer 40 hours per week Inside IR35 Hybrid 1 office day London Farringdon office address: 47-53 Charterhouse St, London, EC1M 6PB Start date: January 2026 Join a dynamic energy provider dedicated to sustainable solutions in the UK. We seek enthusiastic and resourceful Backend Python … full-time role, 40 hours per week. If this role feels right, send us your CV. Accountabilities: Playing a pivotal role in the backend engineering team, you will help to build full-stack cloud apps. You'll be using Python and AWS Cloud services on the backend. Adopt ...

Senior Backend Developer 40 hours per week Inside IR35 Hybrid 1 office day London Farringdon office address: 47-53 Charterhouse St, London, EC1M 6PB Start date: January 2026 Join a dynamic energy provider dedicated to sustainable solutions in the UK. We seek enthusiastic and resourceful Backend Python … full-time role, 40 hours per week. If this role feels right, send us your CV. Accountabilities: Playing a pivotal role in the backend engineering team, you will help to build full-stack cloud apps. You'll be using Python and AWS Cloud services on the backend. Adopt ...

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 … 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 ...

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 ...

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 ...

please get in touch with at UKI.recruitment@tcs.com or call TCS London Office number 02031552100 with the subject line: "Application Support Request". Role: Backend Developer Job Type: Permanent Location: London, UK/Hybrid Number of hours: 40 hours per week – full time Ready to utilize your experience … expertise in Dot Net Development? We have an exciting role for you – Dot Net Backend Developer. Careers at TCS: It means more TCS is a purpose-led transformation company, built on belief. We do not just help businesses to transform through technology. We support them in making a meaningful ...

Senior Backend Engineer | High-Growth Cybersecurity Scale-Up | Fully Remote (UK) 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 that’s trusted … funding, and scaling aggressively worldwide, they’re on a mission to reshape how organisations stay ahead of real-world cyber threats. As a Senior Backend Engineer , you’ll play a key role in building scalable, high-performance backend systems that ingest, process, and serve data on millions ...

Python Developer Reliability Join a leading global investment management firm at the forefront of technology innovation. Were searching for a talented Python Engineer to join our Risk & Market Access division. At our firm, we harness a diverse portfolio of systematic and quantitative strategies, striving to deliver high-quality, uncorrelated ...

Python Developer Reliability Join a leading global investment management firm at the forefront of technology innovation. Were searching for a talented Python Engineer to join our Risk & Market Access division. At our firm, we harness a diverse portfolio of systematic and quantitative strategies, striving to deliver high-quality, uncorrelated ...

recognition, which verifies not just the device but also the individual user for unparalleled security. About the Role: We are seeking a highly skilled Backend Developer with 8-10+ years of experience to join our dynamic team. The ideal candidate will be responsible for designing, developing … maintaining robust, scalable, and secure backend systems. You will work closely with cross-functional teams to build high-performance APIs, manage databases, and implement cloud-based solutions. Key Responsibilities: ● Develop and maintain backend services using Node.js and TypeScript. ● Build scalable APIs using Nest.js and Express.js. ● Design, implement ...

Senior/Lead Backend Web Developer – Digital Experience Projects £60,000 – £65,000 Hybrid – London I'm currently partnered with a leading digital experience agency who are looking to bring in a Senior or Lead Backend Web Developer to join their engineering team. This role … engineering culture where you can take real ownership, work on modern digital platforms, and influence how solutions are delivered. If you enjoy combining deep backend engineering with occasional frontend work and client-facing responsibility, this is a fantastic next step. Interested? I'm shortlisting immediately - if you'd like ...

Key Responsibilities AEM Development: Design, develop, and maintain AEM components, templates, workflows, and OSGi services using Java and the Sling framework. Front-End Integration: Collaborate with UX/UI teams to integrate front-end code ...

Senior Backend Software Engineer A rapidly scaling, AI-driven health-tech organisation (Series A funded) is hiring an experienced Senior Backend Engineer to help build and scale the backend infrastructure powering cutting-edge clinical knowledge tools used by hundreds of thousands of clinicians globally. This … small, highly capable team of clinician-engineers at the forefront of AI in healthcare. The Opportunity You will design, build, and optimise cloud-first backend systems, with a strong emphasis on AWS Serverless , LLM-powered workflows, and highly reliable production infrastructure. This is the chance to help define ...

Backend Engineer – London (Hybrid, 2 days/week in office) Harvey Nash have partnered with true Tech For Good, a fast-growing health-tech scale-up. They've recently secured significant funding and are expanding their engineering team in London. The Role You'll help build and scale … backend systems behind their core platform. Expect to design secure, high-performing APIs, work across a fully serverless AWS environment, support an event-driven architecture, and collaborate closely with product and engineering teams. You'll own features end-to-end and contribute to systems connecting thousands of members. What ...

Key Responsibilities AEM Development: Design, develop, and maintain AEM components, templates, workflows, and OSGi services using Java and the Sling framework. Front-End Integration: Collaborate with UX/UI teams to integrate front-end code ...

Back-End Developer Home-based within the UK About Us At Family Action, we transform lives by providing practical, emotional, and financial support to those experiencing poverty, disadvantage, and social isolation.Since 1869, we’ve been building stronger families, and today, we work with over 60,000 families across more … thousands more through national programmes and grants, helping everyone find the tools to overcome challenges and thrive.We’re now looking for a Back-End Developer to join us on a full-time, permanent basis, working 37 hours per week. The Benefits - Salary of £43,042 per annum (inclusive ...

Back-End Developer Home-based within the UK About Us At Family Action, we transform lives by providing practical, emotional, and financial support to those experiencing poverty, disadvantage, and social isolation. Since 1869, weve been building stronger families, and today, we work with over 60,000 families across more … thousands more through national programmes and grants, helping everyone find the tools to overcome challenges and thrive. Were now looking for a Back-End Developer to join us on a full-time, permanent basis, working 37 hours per week. The Benefits - Salary of £43,042 per annum (inclusive ...

Title: Back-end developer Location: Central London/Hybrid Terms: Permanent Full-Time Salary: Upto £70,000 per annum Are you a .NET developer looking for more ownership in your role? Are you an engineer with the ability to design complex modern applications? Are you interested in building … business that generates £100 million + in revenue? The Company One of the UK's largest ticket providers is seeking a Senior back end developer to complete the move to an internal engineering function. Over the last 20 years, they have acquired several entertainment-related businesses including smaller ticketing ...

Back End Developer - New cutting edge AI product Start-up Scale up - growth Leading Technology AI Brand SaaS - Platform based Technology Services London/City Attractive salary + equity package Our client an industry AI technology leader is currently looking for a Back End Developer to work with ...

Back End Developer Duration - until 12/10/2026 Rate - £(Apply online only) per day - umbrella only Location - London, 1-2 days every 2 weeks. As a Context Engineer in our Development team, you'll collaborate closely with the Dev Lead to pioneer and apply "Context Engineering ...