126 to 135 of 135 API Development Jobs in the UK excluding London

Lead C# Developer/Software Engineer (C# .Net API AWS) Nottingham/WFH to £80k Opportunity to progress your career in a senior, hands-on leadership role at a SaaS tech company. As a Senior C# Developer you'll join an Agile team with a focus on designing and developing payment and billing applications. You'll be working with … a modern tech stack, with a focus on backend C# .Net and API development. There's a supportive team environment where you'll help to mentor others to reach their full potential, taking ownership of technical projects and contributing to high level architecture discussions. Location/WFH: There's a remote interview and onboarding process and you'll be … most of the time, meeting up with the team for constructive meetings once a month/quarter in the Nottingham office. About you: You have strong backend C# .Net development skills You have experience of building REST APIs You have experience with AWS You have a good understanding of databases with SQL skills You're collaborative and have great More ❯

Location: Leeds or London Job Description This role presents an exciting opportunity for a technically proficient API Developer to take a senior role. Reporting to a RTGS Technology Manager, you will be part of the RTGS Technology team that provides day-to-day support and development of new capabilities for the Bank of England Real Time Gross Settlement … RTGS system and then standby cover. For other weeks, you will not be on a rota so can dedicate time to change activities. Role Requirements You are a dedicated API engineer within an Agile environment and meet the minimum criteria. You have a clear collaborative approach to working with others, and keen to share knowledge with colleagues. You also … critical to the UK Payments Systems which requires a methodical approach and flexible to work outside core hours as required. You use best practice in Continuous Improvement/Continuous Development and to manage environments - safely promoting code from pre-production to live including day to day procedures and recovery procedures when required. Work closely with cross-functional teams ensuring More ❯

an Agile environment. Driving best practices around testing, clean code and CI/CD pipelines. Mentoring junior developers and contributing to knowledge sharing. Requirements Strong commercial experience in Java development, ideally in product or platform teams. Strong knowledge of Spring Framework/Spring Boot. Hands-on experience with AWS for deployment, configuration and monitoring. Comfortable with RESTful API More ❯

Axway API Developer (SC Cleared) 6 months contract Inside IR35 £500 to £650 a day Remote Working (UK based) *Active SC Clearance is needed* A top-tier defense organization is looking for an experienced Axway API Developer/Administrator to join their team on a 6-month contract. You will contribute to a large government gateway project, and … liaising with stakeholders to define requirements and design comprehensive solutions. To be successful in this role, you should have a solid foundation in: Axway's core products: Policy Studio, API Gateway, and API Manager. Key communication protocols: SFTP, HTTPS, SSL/TLS, and oAuth. Data and messaging formats: JSON, XML, SOAP, and REST. Linux scripting and environments. Using … and deployments. 6 months contract Inside IR35 - Remote Working - £500 to £650 a day *Active SC Clearance is needed* If you are an experienced professional with a background in API, MFT, or secure file transfers, this could be the perfect opportunity for you. If the above sounds of interest to you then please apply directly to the AD or More ❯

remote, occasional visits to our Leeds office may be required for team collaboration and project updates. Key Responsibilities: Design, develop, and maintain applications using Java , Spring Boot , and modern development practices. Build and optimize APIs and microservices to ensure high performance and scalability. Collaborate with cross-functional teams to gather requirements and deliver robust solutions. Write clean, maintainable, and … best practices. Debug, troubleshoot, and resolve technical issues. Stay up-to-date with emerging trends and technologies in software development. About You: Strong experience in Java development. Proficient in API design and development . Hands-on experience with microservices architecture . Expertise in Spring Boot framework. Familiarity with Agile methodologies and tools like Jira or Confluence. Excellent problem … to Leeds for occasional in-person meetings. What We Offer: Hybrid in Leeds Competitive salary of up to £85,000. Opportunities to work on challenging and innovative projects. Professional development and training support. A collaborative and supportive team environment. More ❯

Software API Developer - Hybrid - Salary £50k (DOE) We are currently working with a growing SaaS company based in Oxfordshire, who have an exciting opportunity for a Software developer experienced with C#, .NET Core, and ASP.NET to join their growing Agile Development team. You will be designing, developing, and optimising backend services and RESTful APIs. Also, you will be … ensure code quality. Ensure projects are completed on time and meet technical specifications. Essential Experience: Strong proficiency in C# and .NET Core Experienced with ASP.NET Core MVC and Web API Experienced with Entity Framework Core and LINQ Proven experience designing and implementing RESTful APIs Understanding of API versioning documentation (e.g. Swagger) Proficient in SQL Solid understanding od Data More ❯

Skills in prompt engineering and RAG (retrieval-augmented generation). Solid background in Python, Java, and database technologies (SQL/NoSQL). Experience in crawling/web scraping and API development. Experience with on-premise AI development (local LLMs, model deployment, open-source frameworks). Desirable: Strong knowledge of data structures, algorithms, and solution architecture. Broad understanding of More ❯

the Apps developed by external developers Purpose of Job: To design, develop and manage Mobile Apps Key activities: Acting as the hands on Manager responsible for iOS and Android development, working closely with external developers/agencies Optimise the App for performance and ensure code reusability across multiple platform Develop Native and Hybrid Apps using Xamarin, HTML5, CSS, WebAPIs … build, deploy, test, crowd test, release to app stores and support Keep up to date on the latest industry trends in the mobile technologies and IoT Co-ordinate with API developers to deliver secure and performant Apps Define and adhere to agreed Apps standards Required experience: A proven track record in delivering complex cross platform mobile Apps Published examples More ❯

you will be joining a strong team who love to build systems that scale in a collaborative environment between engineering, product, and design. Role Responsibilities Lead the design and development of AI agent features (using Gemini/GCP infrastructure). Take technical ownership of epics and cross-functional initiatives, setting the direction for others to follow. Write clean, maintainable … years of experience building and scaling web applications. Proficient with at least one modern backend language (e.g. Go, Python, Rust). Strong grasp of software architecture, design principles, and API development. Basic understanding of machine learning and deep learning fundamentals. Effective mentor and communicator who supports the growth of others. Comfortable providing technical guidance and helping resolve ambiguity on More ❯

you will be joining a strong team who love to build systems that scale in a collaborative environment between engineering, product, and design. Role Responsibilities Lead the design and development of AI agent features (using Gemini/GCP infrastructure). Take technical ownership of epics and cross-functional initiatives, setting the direction for others to follow. Write clean, maintainable … years of experience building and scaling web applications. Proficient with at least one modern backend language (e.g. Go, Python, Rust). Strong grasp of software architecture, design principles, and API development. Basic understanding of machine learning and deep learning fundamentals. Effective mentor and communicator who supports the growth of others. Comfortable providing technical guidance and helping resolve ambiguity on More ❯