51 to 75 of 138 API Development Jobs in the UK excluding London

to technology-driven innovation, in support of their efforts to strengthen their growing SaaS team. They are looking for a senior software engineer with strong experience in full-stack development using Go & JavaScript. This is a remote role, and it must be noted that all candidates are required to be based in the UK with full eligibility to work … remove bottlenecks, and ensure smooth operation in production environments. Maintain high engineering standards through structured, well-organised code and effective use of automation. Required experience: Senior-level full-stack development, with expertise in multiple languages & frameworks (namely Go, JavaScript, React, Angular, .NET). API development & integration, microservices, cloud services, and DevOps practices. Agile methodologies with experience in More ❯

to technology-driven innovation, in support of their efforts to strengthen their growing SaaS team. They are looking for a senior software engineer with strong experience in full-stack development using Go & JavaScript. This is a remote role, and it must be noted that all candidates are required to be based in the UK with full eligibility to work … remove bottlenecks, and ensure smooth operation in production environments. Maintain high engineering standards through structured, well-organised code and effective use of automation. Required experience: Senior-level full-stack development, with expertise in multiple languages & frameworks (namely Go, JavaScript, React, Angular, .NET). API development & integration, microservices, cloud services, and DevOps practices. Agile methodologies with experience in More ❯

to technology-driven innovation, in support of their efforts to strengthen their growing SaaS team. They are looking for a senior software engineer with strong experience in full-stack development using Go & JavaScript. This is a remote role, and it must be noted that all candidates are required to be based in the UK with full eligibility to work … remove bottlenecks, and ensure smooth operation in production environments. Maintain high engineering standards through structured, well-organised code and effective use of automation. Required experience: Senior-level full-stack development, with expertise in multiple languages & frameworks (namely Go, JavaScript, React, Angular, .NET). API development & integration, microservices, cloud services, and DevOps practices. Agile methodologies with experience in More ❯

to technology-driven innovation, in support of their efforts to strengthen their growing SaaS team. They are looking for a senior software engineer with strong experience in full-stack development using Go & JavaScript. This is a remote role, and it must be noted that all candidates are required to be based in the UK with full eligibility to work … remove bottlenecks, and ensure smooth operation in production environments. Maintain high engineering standards through structured, well-organised code and effective use of automation. Required experience: Senior-level full-stack development, with expertise in multiple languages & frameworks (namely Go, JavaScript, React, Angular, .NET). API development & integration, microservices, cloud services, and DevOps practices. Agile methodologies with experience in More ❯

At Neptune, we believe great technology starts with great people. We're looking for a Software Development Team Leader to guide and inspire a skilled team of developers, driving technical excellence and innovation across our software platforms. You'll lead the end-to-end software development lifecycle - from project planning through to deployment - ensuring our systems are robust … scalable, and built to the highest quality standards. Working in an Agile environment, you'll help shape the team's technical direction and development practices while fostering collaboration and continuous improvement. Whether you're an established Team Leader or a senior developer with proven leadership experience looking to take the next step, we'd love to hear from you. … setting, ensuring quality, timeliness, and alignment with business priorities. Provide technical leadership, guiding architectural decisions and promoting best practices in coding, design, and testing. Manage relationships with third-party development service providers, ensuring quality delivery, clear communication, and alignment with Neptune's standards. Conduct code reviews and champion continuous improvement across tools and processes. Collaborate closely with QA, UX More ❯

security, performance and CI/CD processes. Responsible for documenting all solutions, produced to agreed team standards. Demonstrate a willingness to learn and further technologies & techniques embraced by the development team. Cultivate strong working relationships within the squad across Product and Engineering. Participating in working groups and communities of practice designed to support the development team. Continually develop … tools and practices (e.g. Jest, Cypress, Backstop). Enjoys learning - you prioritise growing knowledge Experience with CI/CD and Trunk Based Development. Understanding of Microservices & principles of RESTful API development, including structuring, documenting, versioning, testing and stubbing/mocking. Experience performing code reviews. Experience operating within Agile framework. Aware of website performance implications, best practices and other … non-functional requirements. Able to assist in writing or reviewing technical documentation. Advocate of excellent development practices to optimise for rapid and continuous delivery of client value. React Native, GraphQL, DevOps and event driven architecture experience beneficial Skills/Attributes Excellent collaborator, naturally works well with others across different disciplines in a cross functional team. Excellent communicator (written and More ❯

/BDD principles Create and maintain RESTful and GraphQL APIs Collaborate with POs, BAs, and stakeholders to define solutions Mentor junior developers and promote best practices Drive improvements in development processes and tools What You Bring 5+ years of backend development experience Expertise in C#, .NET (preferably .NET 6+), and SQL Server Deep understanding of SOLID and OOP … principles Skilled in Git, Unit Testing (NUnit), and API development Familiarity with CI/CD pipelines and agile methodologies Strong communication and problem-solving skills Desire to grow within a dynamic and evolving team Why Join? This is an incredible opportunity to make your mark in a company that prioritises purpose, innovation, and professional growth. You'll be … part of a team where your ideas are welcomed, your development is encouraged, and your work truly matters. Ready to build something that helps others-and builds your career in the process? Apply today. 48954MSR2 INDMANS More ❯

testing, and implementing modern microservices-based applications running in the public cloud. This is a hands-on position within a feature team that works collaboratively across the full software development lifecycle. What You'll Be Doing Designing, producing, testing, and implementing high-quality software across the system lifecycle Working within a permanent feature team focused on delivering business-critical … in a fast-paced Agile environment (two-week sprints) Collaborating with architects, principal engineers, and key stakeholders to align technical solutions with business objectives Applying Agile and Test-Driven Development (TDD) principles to build resilient, fast-running, and maintainable code Building and maintaining API-driven Java microservices hosted on public cloud infrastructure Contributing to intentional architecture while supporting … Proven ability to design and deliver well-tested, production-ready software with strong focus on functional and non-functional requirements Deep understanding of microservices architecture , cloud-native applications, and API development Experience with distributed systems - managing workloads at scale using modern practices for availability, performance, and observability Knowledge and experience with Test-Driven Development (TDD) and automated More ❯

a sophisticated core platform built with .NET (C#) and hosted on Microsoft Azure , applying modern microservices architecture at scale. You’ll also gain exposure to Node.js and TypeScript for API development and integration work, plus Angular for front-end experiences. The environment includes modern DevOps practices with Terraform (IaC) , GitHub Actions (CI/CD) , and Kubernetes for scalability More ❯

successful placement earlier this year. Due to strong growth and ongoing investment in their technology, they’re looking to add another talented Full-Stack .NET Developer to their agile development team. The Role You’ll play a key role in designing and building scalable, secure, and high-quality software solutions. Working closely with Product Owners and fellow engineers, you … ll contribute to all stages of development — from concept and design through to deployment and continuous improvement. Delivering high-quality, maintainable code that meets performance and security standards. Collaborating with designers, developers, and stakeholders in an agile team environment. Participating in sprint planning and design sessions, contributing to technical decisions. Troubleshooting and resolving complex technical challenges quickly and effectively. … Continuously improving code quality through testing, reviews, and best practices. Skills & Experience: .NET (C#, ASP.NET) Angular REST/API Development SQL Server TypeScript, JavaScript, HTML, CSS Strong understanding of Agile delivery (Scrum or Kanban) Experience with Azure services (e.g. Cosmos DB, Microservices, Docker, NServiceBus) Familiarity with cloud-native or distributed architectures Benefits: Salary up to £55,000 per More ❯

such as graduates and juniors Oversee software architecture, ensuring seamless integration with various platforms. Gather and analyse requirements, refining features and technical solutions. Lead the estimation process and ensure development work is accurately scoped. Debug existing code, maintain system performance, and drive best coding practices. Manage defects and oversee their resolution across the development team. Experience : 5+ years … experience in software engineering, with a strong focus on Java development. Experience leading and/or mentoring technical teams within fast-paced, agile environments. Expertise in microservices architecture, REST API development, and security. Experience with version control (GIT preferred) and cloud platforms like AWS. It would be a plus if you also possess previous experience in: TDD/ More ❯

Manchester (3 days per week in office, Tuesday–Thursday), the successful candidate will be responsible for designing, developing, and maintaining modern cloud-based systems. You will work across backend development, DevOps, and infrastructure as code, collaborating closely with global teams in Australia, the U.S., and locally in Manchester. Key Responsibilities: Backend Development (50%) Design, develop, and enhance backend … requirements into technical solutions in collaboration with Product Owners. DevOps/Cloud Operations (40%) Work with AWS to manage, optimise, and secure cloud infrastructure. Deploy and maintain services across development, testing, and production environments. Detect and prevent security threats, including account takeover attempts. Drive continuous improvement in technical standards, tools, and processes. Infrastructure as Code (10%) Deploy and manage … architects and global teams to implement reusable and maintainable infrastructure components. Required Qualifications: Strong expertise in cloud computing and services (AWS experience preferred). Proficiency in TypeScript and REST API development ; experience with NestJS preferred. Deep understanding of cloud security principles , including IAM, networking, and encryption. Experience with web services and microservices-based architectures . Excellent communication skills More ❯

implement software requirements, manage developments from inception to delivery, mentor and support junior developers whilst ensuring adherence to coding standards, best practices, and agile principles. You'll document all development changes and produce clear development guides, review, re-factor, and optimise existing codebases for performance, reliability, and maintainability, maintain and update business documents and templates, and collaborate with … teams to support Management Information (MI) and automation needs. We require the following: Advanced proficiency in Laravel – PHP and C#/.NET frameworks Strong experience with Visual Studio and API development Expert-level SQL Server skills, including database design, maintenance, complex queries, views, stored procedures, and SSRS reporting Solid understanding of REST and SOAP services Skilled in XML More ❯

successful placement earlier this year. Due to strong growth and ongoing investment in their technology, they're looking to add another talented Full-Stack .NET Developer to their agile development team.The RoleYou'll play a key role in designing and building scalable, secure, and high-quality software solutions. Working closely with Product Owners and fellow engineers, you'll contribute … to all stages of development - from concept and design through to deployment and continuous improvement.* Delivering high-quality, maintainable code that meets performance and security standards.* Collaborating with designers, developers, and stakeholders in an agile team environment.* Participating in sprint planning and design sessions, contributing to technical decisions.* Troubleshooting and resolving complex technical challenges quickly and effectively.* Continuously improving … code quality through testing, reviews, and best practices.Skills & Experience:* .NET (C#, ASP.NET)* Angular* REST/API Development* SQL Server* TypeScript, JavaScript, HTML, CSS* Experience with Azure services (e.g. Cosmos DB, Microservices, Docker, NServiceBus)* Familiarity with cloud-native or distributed architecturesBenefits:* Salary up to £55,000 per annum* Hybrid working (1-2 visits per month to the Bristol office More ❯

successful placement earlier this year. Due to strong growth and ongoing investment in their technology, they're looking to add another talented Full-Stack .NET Developer to their agile development team. The Role You'll play a key role in designing and building scalable, secure, and high-quality software solutions. Working closely with Product Owners and fellow engineers, you … ll contribute to all stages of development - from concept and design through to deployment and continuous improvement. * Delivering high-quality, maintainable code that meets performance and security standards. * Collaborating with designers, developers, and stakeholders in an agile team environment. * Participating in sprint planning and design sessions, contributing to technical decisions. * Troubleshooting and resolving complex technical challenges quickly and effectively. … Continuously improving code quality through testing, reviews, and best practices. Skills & Experience: * .NET (C#, ASP.NET) * Angular * REST/API Development * SQL Server * TypeScript, JavaScript, HTML, CSS * Experience with Azure services (e.g. Cosmos DB, Microservices, Docker, NServiceBus) * Familiarity with cloud-native or distributed architectures Benefits: * Salary up to £55,000 per annum * Hybrid working (1-2 visits per month More ❯

successful placement earlier this year. Due to strong growth and ongoing investment in their technology, they're looking to add another talented Full-Stack .NET Developer to their agile development team. The Role You'll play a key role in designing and building scalable, secure, and high-quality software solutions. Working closely with Product Owners and fellow engineers, you … ll contribute to all stages of development - from concept and design through to deployment and continuous improvement. Delivering high-quality, maintainable code that meets performance and security standards. Collaborating with designers, developers, and stakeholders in an agile team environment. Participating in sprint planning and design sessions, contributing to technical decisions. Troubleshooting and resolving complex technical challenges quickly and effectively. … Continuously improving code quality through testing, reviews, and best practices. Skills & Experience: .NET (C#, ASP.NET) Angular REST/API Development SQL Server TypeScript, JavaScript, HTML, CSS Experience with Azure services (e.g. Cosmos DB, Microservices, Docker, NServiceBus) Familiarity with cloud-native or distributed architectures Benefits: Salary up to 55,000 per annum Hybrid working (1-2 visits per month More ❯

Software Engineer (API Development/Backend Node.js, C#) Birmingham, West Midlands (Hybrid 1 day onsite a week) £50-55k + Benefits Were partnering with a leading enterprise software house in Birmingham that is expanding its engineering team. Theyre looking for a Software Engineer with strong API and backend development experience to work on complex, high More ❯

your team and the wider business Proactive and inquisitive, willing to challenge the norm to help improve the way they work Passionate about collaborating with and contributing to the development of others An ability to communicate effectively, slowly introducing designs to better the engineering methodology and practice. The Role Experience of successfully producing architecture projects which transform technology and … by adapting your style to fit the audience. Experience and stories to tell on leading on technology change. Proficient in a range of technologies - such as cloud, platform engineering, API development, message bus, workflow engines etc; and development languages such as C/C C#.Net/Python/PHP. Advocate for Agile and the ability to drive More ❯

functional teams to deliver high-quality software solutions. Core Skills Strong C# Skills: Demonstrated proficiency in C# programming, with a focus on building scalable applications using .NET Core. Web API Development: Expertise in designing, developing, and maintaining well-structured RESTful APIs to facilitate data exchange between systems. Database Management: Solid understanding of SQL databases and experience working with … NoSQL databases, particularly MongoDB. Cloud Architecture: Proven ability to architect and implement scalable cloud solutions using AWS, adhering to best practices for event-driven systems. Front-End Development: Proficiency in TypeScript and Angular for building modern, responsive web interfaces. Messaging Systems: Experience working with message queues and streams, such as RabbitMQ and AWS Kinesis/SQS, to handle asynchronous More ❯

days in the office) c£60,000 per year Plus excellent company benefits (including Pension, Bonus, Life Insurance, Healthcare, etc.) Skills and Experience: Extensive experience with web application and API development at a senior level Must be able to mentor more junior members of the team in the absence of the Technical Lead Expert understanding of microservice architecture … scalable and performant solutions Design and develop front end code with a focus on security, accessibility and delivering a great user experience Provide input on key technology, architectural and development decisions The Opportunity: My client based in the sustainability sector are currently on the lookout for a Senior Full Stack PHP Developer on a permanent basis. In this role … systems to a high standard of security, scalability and performance. The successful candidate will have demonstrable experience working at a senior level across the full stack within a web development team, with keen attention to detail and strong problem-solving skills. Please note this role will not be fully remote and there is no flexibility on the two days More ❯

your team and the wider business Proactive and inquisitive, willing to challenge the norm to help improve the way they work Passionate about collaborating with and contributing to the development of others An ability to communicate effectively, slowly introducing designs to better the engineering methodology and practice. The Role Experience of successfully producing architecture projects which transform technology and … by adapting your style to fit the audience. Experience and stories to tell on leading on technology change. Proficient in a range of technologies - such as cloud, platform engineering, API development, message bus, workflow engines etc; and development languages such as C/C C#.Net/Python/PHP. Advocate for Agile and the ability to drive More ❯

reused. You'll be part of a small, agile, multi-disciplinary team working on open data platforms and services that make a real difference. This is a hands-on development role with strategic influence, where you'll help shape architecture, engineering practices, and delivery standards across a growing programme team of 60+ people. Key Responsibilities Design, build, and maintain … Ensure code quality, documentation, and maintainability Align delivery with recognised standards including the Technology Code of Practice and Service Standard Essential Skills & Experience 4+ years of experience in software development Strong proficiency in Ruby (Python is a bonus) Experience with microservices or service-oriented architecture Skilled in writing clean, well-documented code and taking ownership of the development process Comfortable working in agile , cross-functional teams Familiarity with: Docker & Kubernetes Git & version control API development (REST, GraphQL) Cloud deployment Open data platforms or search technologies Desirable Experience working with or within government or public sector teams Background in open data , civic tech, or mission-driven organisations Working Arrangements Base location: London or Manchester (2 days More ❯

be willing to undergo the clearance process. Day-to-day of the role: Develop and optimise user interfaces using React and Next.js for front-end development. Handle back-end API development using .NET (C#), ensuring secure coding and integration logic. Manage Azure hosting and infrastructure, including services like Azure SQL, Azure Key Vault, and Azure DevOps. Implement and … and integration with systems such as Dynamics 365, SharePoint Online, and Gov.UK Pay (or other payment providers, secure payment gateway integration). Required Skills & Qualifications: Strong experience in UI development, performance optimisation, and accessibility. Proficient in React and Next.js for front-end development. Experienced in .NET (C#) for back-end development. Familiarity with Azure hosting and infrastructure management. Experience More ❯

government in their search for a Cloud Java Developer to work out of either Manchester or Gloucestershire. This client, aside from offering a very strong package, offer an excellent development programme, with a real willingness to support both financially and otherwise. Tech wise, we have requirement for both Java and Python backend languages, and cloud experience would also be … or Java, React, Go Familiarity with deploying applications to cloud architecture and technologies in AWS environments. Experience with web application services Experience of Test Driven or Behaviour Driven development. API development and integration Experience with monitoring systems Working knowledge of digital delivery processes and methodologies. Working knowledge of Atlassian Toolset. Knowledge of JavaScript frontend frameworks. Understanding of front More ❯

Manchester (3 days per week in office, Tuesday–Thursday), the successful candidate will be responsible for designing, developing, and maintaining modern cloud-based systems. You will work across backend development, DevOps, and infrastructure as code, collaborating closely with global teams in Australia, the U.S., and locally in Manchester. Key Responsibilities: Backend Development (50%) Design, develop, and enhance backend … requirements into technical solutions in collaboration with Product Owners. DevOps/Cloud Operations (40%) Work with AWS to manage, optimise, and secure cloud infrastructure. Deploy and maintain services across development, testing, and production environments. Detect and prevent security threats, including account takeover attempts. Drive continuous improvement in technical standards, tools, and processes. Infrastructure as Code (10%) Deploy and manage … architects and global teams to implement reusable and maintainable infrastructure components. Required Qualifications: Strong expertise in cloud computing and services (AWS experience preferred). Proficiency in TypeScript and REST API development ; experience with NestJS preferred. Deep understanding of cloud security principles , including IAM, networking, and encryption. Experience with web services and microservices-based architectures . Excellent communication skills More ❯