Backend Developer Jobs

We are recruiting for Software Engineers to work on a Fixed Term Contract ending 30/9/2028. Sitting within Handl Health & Wellbeing area, the successful candidate will actually be employed by IPRS Group Ltd, with divisional responsibilities across both the Health and Complex Rehabilitation divisions of Handl Group. Full time 40 hours per week Mon-Fri Fixed Term Contract ending 30/9/2028 Remote working within the UK M...

About the Job you are considering: We are seeking a highly skilled Angular Developer; this role involves working on both new product development and the maintenance of existing systems. You will participate in all stages of the software development lifecycle, including design, implementation, testing, and deployment. Hybrid working: The places that you work from day to day will vary according to your role, your needs...

UK CITIZENSHIP REQUIRED FOR THIS POSITION: Yes RELOCATION ASSISTANCE: Relocation assistance may be available TRAVEL: Yes, 10% of the Time Salary: £63,300 - £94,900 Define Possible at Northrop Grumman UK What's your possible? At Northrop Grumman UK, you are part of a team driving innovation where it matters most - solving tomorrow's challenges and shaping the technology solutions of the future. It's what we call Defin...

We are looking for an experienced Senior Software Developer with strong Node.js expertise to join a growing engineering team. You will play a key role in designing, developing, and maintaining scalable backend services and cloud-native applications. Key Responsibilities Design, develop, and maintain backend applications using Node.js and TypeScript. Develop and consume RESTful APIs and microservices. Build scalable, ...

Python Software Engineer / Backend Developer Cambridge to £80k Do you have strong backend software development experience using Python? You could be joining the world's most advanced cybersecurity technology business that uses AI technology to protect clients across the globe from advanced cyber threats, working alongside a team of friendly and supportive people and enjoying a host of perks and benefits. As a Python ...

Founding Software Engineer (Python) to £115k Are you an ambitious full stack Software Engineer who thrives in early-stage environments where you can shape both the technology and the product? You could be joining a fast-growing AI start-up as one of its founding engineers, helping to build technology that is transforming compliance and operational efficiency across the NHS and wider regulated industries. With strong ...

Full Stack Engineer / Developer (C# .Net Core JavaScript) St Albans / WFH to £100k Are you an ambitious Full Stack Engineer looking to apply your technical skills in a fast paced environment where technology, data and sport intersect? You could be progressing your career at a highly successful technology business that develops sophisticated platforms used to analyse and trade on global sports markets. You'll join a c...

Role : Java Developer (Blockchain) Type : Contract Location : London, UK (Hybrid) Roles and Responsibilities Backend Engineering * Design and develop enterprise-grade backend services using Java. * Build APIs and microservices supporting digital asset products. * Develop scalable and resilient systems aligned with banking standards. * Ensure high availability, security, performance, and maintainability. Blockchain De...

Senior .NET Developer C# | .NET | AWS | APIs & Integrations UK Remote, monthly office visit Up to £75,000 plus bonus Want more say in how software gets built? This role offers the chance to work on a SaaS fintech platform, building new applications, improving existing systems and working alongside a team of experienced, commercially minded senior developers. You'll focus on backend development using C# and .NET, buil...

Salary: £60,000 - 75,000 per year Requirements: Strong commercial experience with Java and Spring Boot. Experience developing microservices and RESTful APIs. Commercial frontend development experience with Angular, React, or Vue.js; Angular is preferred, and candidates with React or Vue.js experience should be willing to learn Angular. Good understanding of relational databases and the ability to write and troublesho...

Salary: £60,000 - 85,000 per year Requirements: Strong commercial backend development experience with Node.js. Experience designing and developing distributed systems, ideally involving APIs, event-driven architecture and asynchronous processing. TypeScript experience is highly desirable but not essential. Experience with technologies such as NestJS, Google Cloud, Pub/Sub, MongoDB, Redis, Terraform, GitHub Actions or...

Salary: £40,000 - 50,000 per year Requirements: Experience with a modern frontend framework such as React, Vue, Svelte, or similar Backend development experience in at least one language, such as Node.js/TypeScript, Python, Go, C#, or similar Experience working with APIs, relational databases, and cloud environments Familiarity with CI/CD, containers, and modern deployment practices Ability to think about systems hol...

Salary: £60,000 - 75,000 per year Requirements: Strong commercial experience with Java and Spring Boot. Experience developing microservices and RESTful APIs. Commercial frontend development experience with Angular, React, or Vue.js; Angular is preferred, and candidates with React or Vue.js experience who are willing to learn Angular will also be considered. Good understanding of relational databases and ability to wr...

Salary: £75,000 - 95,000 per year Requirements: Strong commercial experience with TypeScript and Node.js. Proven track record building and maintaining production backend systems. Experience leading a small engineering team or working as a technical lead. Hands-on approach and willingness to spend a significant proportion of time coding. Strong understanding of REST APIs, integrations, and backend system design. Exper...

Salary: £35,000 - 55,000 per year Requirements: Demonstrable experience working as a Senior Backend Developer. Strong commercial experience with Python as a primary development language. Hands-on experience developing RESTful APIs and/or GraphQL. Experience with AWS Cloud services. Experience with serverless architecture and technologies. Strong knowledge of Git and version control. Good understanding of software dev...

Salary: £70,000 - 85,000 per year Requirements: Proven experience leading software delivery within a microservice-based environment Strong technical background in .NET and Azure Comfortable working across the stack, with deeper expertise in backend systems Experience mentoring and guiding developers in a collaborative, agile setup Product-focused mindset with an understanding of trade-offs between speed, scalability ...

Salary: £50,000 - 85,000 per year Requirements: 5 years of backend development experience Strong .NET and C# skills for API development and business logic implementation Expertise in SQL Server, including query optimization, indexing, and stored procedures Proficiency in RESTful API development, with a strong understanding of error handling, logging, and monitoring Good understanding of Windows Forms Experience with ...

Salary: £70,000 - 70,000 per year Requirements: Proven experience as a Senior or Lead Full Stack Engineer Strong commercial experience with Golang (Go) — essential and a primary focus Experience with spec-driven or agentic development approaches Advanced frontend expertise with Vue.js and Nuxt.js Strong JavaScript (ES6), HTML, and CSS skills Experience designing and building RESTful APIs and microservices Familiarity...

Salary: £40,000 - 50,000 per year Requirements: Commercial experience working with .NET and C# Strong knowledge of SQL Experience with or willingness to work with .NET Framework and legacy systems Ability to pick up existing code quickly and work across multiple systems and codebases Comfortable working independently and approaching technical problems practically Interest in being involved across the full development...

Salary: £80,000 - 120,000 per year Requirements: 5 years of professional software development experience. 2 years of professional experience in Python. 2 years in a senior software engineer position. Strong communication and team-work skills. Experience working in an agile software development environment. Responsibilities: Collaborate with the product team and in-house hardware engineers to understand the problems o...

Salary: £40,000 - 50,000 per year Requirements: Around 2 years of experience in software development Experience across frontend and backend development (.NET / React), Angular / Vue experience is acceptable Good understanding of software engineering fundamentals Interest in working in a startup or prior startup experience Exposure to AWS or a similar cloud platform Interest in AI Responsibilities: Building and mainta...

Job Description Why Altium Platform? Altium technology helps to improve the lives of millions by empowering anyone to turn concepts into reality. Altium’s unique position in the EDA industry, through supply, design and manufacturing, gives a unique opportunity for customers to connect with the EDA space. The Altium Platform is the foundational rock on top of which is built products and solutions which transform the e...

About Neo4j: Neo4j is the graph intelligence platform that transforms data into knowledge to power the next generation of intelligent applications and AI systems. It includes enterprise-ready knowledge graphs for accurate, explainable, and governed AI; the most comprehensive, trusted, and easy-to-deploy graph capabilities across any environment and data source; and an unmatched ecosystem trusted by 84 of the Fortune ...

About the Role: As a Senior Software Engineer at Radiant, you’ll be a hands-on technical leader, driving the design and development of our most critical systems, including our GPU orchestration layer, inference-serving infrastructure, and core platform APIs. You’ll set the standard for engineering excellence across the team, working closely with other principal engineers to align on strategy and drive technical leade...

About the Business Quilter plc is a leading wealth management business, helping to enable brighter financial futures for every generation. Quilter oversees £157.4 billion in customer investments (as of June 2026). It has an adviser and customer offering spanning financial advice, investment platforms, multi-asset investment solutions, and discretionary fund management. The business is comprised of two segments: Afflu...