1 to 25 of 44 Backend Developer Jobs in the UK

Backend .NET Developer (C#/Web API) Norwich, Norfolk | £38,000 | Full-Time We're recruiting a Backend .NET Developer to join a Norwich-based software business, working on the development and ongoing improvement of a data analytics platform used by businesses to access and understand … information. Working as part of a small development team and reporting to the Chief Technology Officer, you'll be responsible for building and maintaining backend services, developing APIs and integrating data from multiple sources. This is a hands-on development role with involvement in new features, system performance ...

Backend Developer (Go) Salary: Up to £61,000 per annum Contract: 12-month FTC, with potential for extension Location: London - hybrid, 2 days a week on site Our prestigious client is looking for a Backend Developer to join a growing AI and automation team, building services … native Azure platform. Your work will connect enterprise systems, automate processes and deliver practical improvements across the organisation. The role Design, build and maintain backend services, primarily in Go, with Python where appropriate. Develop REST APIs, webhooks and event-driven integrations connecting internal systems and third-party platforms. Contribute ...

Senior Backend Developer (Java/AWS) Rate: £500-£600 per day (Outside IR35) Location: London (3 days per month onsite) Duration: Initial 6-month contract Overview We're supporting a financial services client looking for a Senior Backend Developer to help deliver and optimise a suite … hands-on engineering role with significant involvement in solution design, technical direction, and code quality. What You'll Be Doing Developing scalable backend services using Java and Spring Boot Designing and building RESTful APIs and event-driven solutions Deploying and maintaining applications within AWS environments Contributing to architecture, engineering ...

Senior Backend Developer (Java/Spring Boot/AWS) Rate: £500 - £600 Outside IR35 Location: London - 3 times on site a month Duration: 6 months initial The role: I'm working with a financial services organisation that needs a Senior Backend Developer to build and maintain ...

Senior Backend Developer (Java/Spring Boot/AWS) Rate: £500 - £600 Outside IR35 Location: London - 3 times on site a month Duration: 6 months initial The role: I'm working with a financial services organisation that needs a Senior Backend Developer to build and maintain ...

Senior Backend Developer (Java/Spring Boot/AWS) Rate: £500 - £600 Outside IR35 Location: London - 3 times on site a month Duration: 6 months initial The role: I'm working with a financial services organisation that needs a Senior Backend Developer to build and maintain ...

Software Engineer, Developer, Backend – Java – Identity - IAM, Security Check out the role overview below If you are confident you have got the right skills and experience, apply today. Contract – Until End of December 2026 (Renewable) Rate: £600 per day – Inside IR35 Location:Essex based offices (between Brentwood … week The banking and finance arm of one of the world's leading manufacturing companies and a household name is seeking asoftware engineer, software developer with Backend, Back End and Identity Access Management (IAM) expertise. The Backend Software Engineer will join the Identity Management Services team ...

Software Engineer, Developer, Backend Java Identity - IAM, Security Contract Until End of December 2026 (Renewable) Rate: £600 per day Inside IR35 Location:Essex based offices (between Brentwood and Basildon) 4 days a week The banking and finance arm of one of the worlds leading manufacturing companies … household name is seeking asoftware engineer, software developer with Backend, Back End and Identity Access Management (IAM) expertise. The Backend Software Engineer will join the Identity Management Services team, (IAM) focusing on the core platform work that powers identity infrastructure. Main Tasks & Responsibilities: > Design and build high ...

Software Engineer, Developer, Backend – Java – Identity - IAM, Security Contract – Until End of December 2026 (Renewable) Rate: £600 per day – Inside IR35 Location:Essex based offices (between Brentwood and Basildon) 4 days a week The banking and finance arm of one of the world’s leading manufacturing companies … household name is seeking a software engineer, software developer with Backend, Back End and Identity Access Management (IAM) expertise. The Backend Software Engineer will join the Identity Management Services team, (IAM) focusing on the core platform work that powers identity infrastructure. Main Tasks & Responsibilities: > Design and build ...

Software Engineer, Developer, Backend Java Identity - IAM, Security Contract Until End of December 2026 (Renewable) Rate: £600 per day Inside IR35 Location: Essex based offices (between Brentwood and Basildon) 4 days a week The banking and finance arm of one of the world s leading manufacturing companies … household name is seeking a software engineer, software developer with Backend, Back End and Identity Access Management (IAM) expertise. The Backend Software Engineer will join the Identity Management Services team, (IAM) focusing on the core platform work that powers identity infrastructure. Main Tasks & Responsibilities: Ensure the platform ...

Senior Backend Developer Full-time Inside IR35 Hybrid 1 office day London Farringdon office address: 47-53 Charterhouse St, London, EC1M 6PB Join a dynamic energy provider dedicated to sustainable solutions in the UK. We seek enthusiastic and resourceful Backend Python Engineers at senior levels … full-time role, 37 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 for Video on Demand and Live Streaming (GoLang) Contract 12 months OUTSIDE IR35 Remote (UK) A leading video platform is seeking experienced Senior Backend Developers with expertise in GoLang to contribute to the VoD2Live project. This person must have experience working on Streaming … Video on Demand. The role requires developing robust, high-performance backend services that integrate seamlessly with third-party services such as CDNs, DRM providers, and cloud platforms. This position is ideal for candidates with strong problem-solving skills and a deep understanding of video streaming protocols and microservices architecture. ...

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. ...

C# Backend Developer – Hedge Fund Up to 95,000 + BonusQuant Capital is urgently looking for a C# Developer to join our high profile client. A $1billion strong Hedge fund with performance figures of 13%. They trade a number of products across but mainly … working on is porting existing systems to C# and modernising adjacent systems and applications. This would be a great opportunity for a senior developer looking for a role with a large amount of responsibility and the ability to have an input on design and architecture decisions. ...

Fully remote (UK) | £80,000-£85,000 + healthcare, pension, holiday etc We're hiring a hands-on Senior Java Backend Developer to join our health tech clients Integrations team, building secure, reliable payment capabilities for their platform, a cloud-based SaaS platform used across the UK. ...

Role: Backend Systems Developer Salary: £40,000 £60,000 Location: Liverpool Working Pattern: Hybrid Were working with an ambitious, technology-led organisation that is continuing to invest significantly in its engineering function. Theyre looking for an experienced Backend Systems Developer to join the team and play … platform. This is a great opportunity to work on business-critical systems where performance, scalability and reliability are essential. Youll be responsible for developing backend services that connect customer-facing applications with warehouse, ERP, finance and wider operational platforms, supporting the accurate and efficient movement of millions of data ...

Senior Backend Developer for Video on Demand and Live Streaming (GoLang) - Contract - 12 months - OUTSIDE IR35 - Remote (UK) A leading video platform is seeking experienced Senior Backend Developers with expertise in GoLang to contribute to the VoD2Live project. This person must have experience working on Streaming ...

Fully remote (UK) £80,000-£85,000 + healthcare, pension, holiday etc We're hiring a hands-on Senior Java Backend Developer to join our health tech clients Integrations team, building secure, reliable payment capabilities for their platform, a cloud-based SaaS platform used across the UK. ...

Trading Software Firm, City of London, 40 man flat Dev TeamPay: 85k, 20% Bonus- 750 training budget, Pension, Life/Health, Some Flex WorkingC# Backend Developer FintechQuant is urgently looking for a junior and senior C# Software Engineer to join our high profile client. Current challenges greenfield trading ...

handle over 6 million HTTP requests daily and process more than 1.5 million bets per hour at peak. Job Description As a Backend Developer,youllbuild the engine behind ourFollowScoresapp, turning complex data intoreal-time updates formillions of football fans. TheFollowScoresteam builds the technology behind our popular football scores … scaling the platform to reach more users and launching fresh, innovative features to keep fans at the heart of the action. The backend team manages the systems delivering data to iOS and Android apps via web sockets and REST APIs. This involves working with Golang, Redis ...

handle over 6 million HTTP requests daily and process more than 1.5 million bets per hour at peak. Job Description As a Backend Developer,youllbuild the engine behind ourFollowScoresapp, turning complex data intoreal-time updates formillions of football fans. TheFollowScoresteam builds the technology behind our popular football scores … scaling the platform to reach more users and launching fresh, innovative features to keep fans at the heart of the action. The backend team manages the systems delivering data to iOS and Android apps via web sockets and REST APIs. This involves working with Golang, Redis ...

handle over 6 million HTTP requests daily and process more than 1.5 million bets per hour at peak. Job Description As a Backend Developer, you'll build the engine behind our FollowScores app, turning complex data into real-time updates for millions of football fans. The FollowScores team … scaling the platform to reach more users and launching fresh, innovative features to keep fans at the heart of the action. The backend team manages the systems delivering data to iOS and Android apps via web sockets and REST APIs. This involves working with Golang, Redis ...

handle over 6 million HTTP requests daily and process more than 1.5 million bets per hour at peak. Job Description As a Backend Developer, you'll build the engine behind our FollowScores app, turning complex data into real-time updates for millions of football fans. The FollowScores team … scaling the platform to reach more users and launching fresh, innovative features to keep fans at the heart of the action. The backend team manages the systems delivering data to iOS and Android apps via web sockets and REST APIs. This involves working with Golang, Redis ...

Role: Backend Systems Developer Salary: £40,000 - £60,000 Location: Liverpool Working Pattern: Hybrid We're working with an ambitious, technology-led organisation that is continuing to invest significantly in its engineering function. They're looking for an experienced Backend Systems Developer to join the team ...

Backend C# Developer- Quant Fund200,000 Plus Bonus4 days in the office – some room for negotiationQuant Capital is urgently looking for a Senior Backend C# Developer to join our high profile client. Our client is a $5 billion strong systematic quant commodity trading fund with excellent … have a deep understanding of code not just the ability to read the language, expectations are high so if you are not a serious developer, don't waste your time. My client is based in LondonC# Winforms, Quant Fund, Developer, .NET, SQL VBA VS 2010 Visual studio ...