101 to 125 of 140 API Development Jobs in the UK excluding London

with clients and internal teams to take ideas from concept to production. This includes agentic systems, bespoke applications, and early-stage (0–1) product development , primarily using OpenAI technologies. We’re particularly interested in engineers who combine technical depth with real-world impact , and who are keen to grow … Deliver GenAI solutions including RAG pipelines, tool use, and evaluation frameworks Contribute across the full solution lifecycle: design, build, testing, deployment, and iteration Support development of agentic systems (multi-agent workflows, orchestration, human-in-the-loop) Optimise performance, cost, and maintainability in cloud environments (AWS/Azure) Work closely ...

technology company in Oxford is seeking a Senior Software Engineer to lead the development of IoT device and cloud platform software. The role involves developing and maintaining C# codebases, API development, and collaboration with technical teams. Ideal candidates will have 8 years of C# experience, familiarity with ...

leading online travel company in Northern Ireland seeks a Development Manager to lead the team in developing its in-house reservation system, Hermes. This role involves ensuring high-quality engineering and adherence to Agile practices while overseeing enhancements and integrations. The ideal candidate will have strong experience in .NET … API development, and team leadership, and will be focused on continuous improvement and effective collaboration across departments. Full-time position with attractive benefits. #J-18808-Ljbffr ...

supporting modern digital services. This is a hands-on engineering role where you will work across the full technology stack, contributing to the design, development, testing and ongoing support of web applications and digital services. You will work within a multidisciplinary product team and collaborate with product managers, business … planning, backlog refinement, stand-ups, reviews and retrospectives. Identify and communicate delivery risks and technical issues at an early stage. Use modern AI-assisted development tools to improve coding, testing, debugging and documentation workflows. Work collaboratively with technical and non-technical colleagues to understand requirements and develop practical solutions. ...

fintech products used across the insurance market. You'll work across the stack using Python, Django, SQL, and React , contributing to both new product development and ongoing application support. This is a hands-on role with real influence over how our products evolve. What you'll do Design, build … occasionally with clients Contribute to CI/CD pipelines using Azure DevOps What you'll need to succeed: Essential Experience Python 3+ years' API Integrations Strong SQL skills (MySQL or PostgreSQL) Solid front-end fundamentals (HTML, CSS, JavaScript, React, Angular) Good understanding of software design principles and best practices ...

hands-on Java engineer to work with a modern technology stack including Java, Spring Boot, AWS, Kafka and MongoDB, while contributing to the development of highly scalable, secure and resilient digital services. You’ll work as part of a multidisciplinary Agile team, collaborating with engineers, architects and delivery professionals … integration tests. Troubleshoot defects and complex technical issues. Contribute to the performance, resilience and operational stability of live services. Participate throughout the full software development lifecycle. Contribute to Agile ceremonies, code reviews and technical discussions. Collaborate with Software Engineers, Technical Architects and other delivery professionals. Contribute to engineering standards ...

Provide technical leadership across SAP integration projects and initiatives. Design, prototype, and implement automation solutions that improve integration delivery. Identify opportunities to streamline SAP development, integration, testing, and deployment processes. Work closely with SAP delivery teams to ensure solutions are practical, scalable, and deliver measurable value. Lead technical proof … concepts and rapid innovation initiatives to evaluate new tools, technologies, and ways of working. Drive adoption of AI-assisted development, automation, and modern engineering practices. Define and measure key performance metrics to demonstrate improvements in delivery speed, quality, and efficiency. Produce technical recommendations, demonstrations, and business cases to support ...

week in the office. Key technical requirements; Proven hands-on Angular or Bigcommerce (or similar) website, mobile app support experience Proven hands-on API development or support experience Proven hands-on Azure ADF, logic app, function app, storage accounts development or support experience Proven hands-on Mobile … middleware, IIS solution development, or support experience Proven hands-on experience in SSIS packages support, DB clustering set up, DB, SSIS upgrades, DB performance tuning. Experience in setting up monitoring and alerting using any monitoring tools e.g. spotlight, solarwinds etc. Power BI and MS fabric experience optional Key responsibilities ...

Experis - ManpowerGroup is seeking an experienced Application Developer in Sheffield, with 3 days onsite per week. The role centers on identity API development, data ingestion and transformation, and event-driven architectures using Google Cloud Platform. You will design secure IAM workflows, integrate with identity services, and build scalable ...

prem, hybrid and restricted environments. You will design production architectures for agentic AI, LLM and vision‐language apps. The role requires strong Python, API development, Docker, cloud deployments, and secure, observable production systems. You will build connectors, CI/CD, monitoring, and ensure reliability, performance and cost efficiency ...

FinTech business, the role is hybrid - 1 day per week in the office. Key technical requirements; Proven hands-on website, mobile app support and development experience (ideally Angular or Big Commerce) Proven hands-on API development or support experience ETL tools experience Hands-on Azure ADF, logic ...

Administration experience. Windchill Customization and configuration expertise, including workflows and lifecycle. Knowledge of Windchill data utilities, soft typing, loaders, and ACLs. Experience with JDBC, API development, and MS SQL or Oracle databases. Familiarity with DevOps tools such as GIT and JIRA. Nice to Have: Data migration experience, including … driven company where consulting, engineering, and talent meet to build meaningful digital solutions. Well back you up every step of the way, accelerate your development, and ensure your skills make a difference. ...

Square One Resources is seeking an Application Developer for a long-term contract with a tier one banking client. The role emphasises identity API development, data ingestion and transformation, and event-driven (Pub/Sub) architectures at scale. You will collaborate with tech leads, Cloud Security, DevOps ...

Lockheed Martin in Gloucester is seeking a Lead SDR Engineer (Software Defined Radio) to join a multi-discipline EW capability development team. You will lead on SDR firmware, platform/API development and testing, while mentoring engineers and collaborating with system engineers and cyber specialists. A clearance ...

successful candidate will bridge research and commercial deployment, focusing on performance, reliability, and maintainability. Key qualifications include expertise in TensorFlow and Python, experience in API development, and familiarity with MLOps practices. Joining means working on cutting-edge ML solutions and collaborating with experts across various fields. #J ...

This isn't your standard, repetitive coding job. You will be working on a unique mix of backend data systems, cutting-edge AI integrations, API development, and frontend web optimization. This position heavily leans toward backend data engineering, system integration, and automation , with a smaller portion dedicated ...

focused on building a new platform that sits above its existing search technology stack. The project will involve creating a lightweight abstraction layer and API architecture that simplifies the user experience, whilst providing a foundation for future search platform evolution. This is an opportunity to work on a greenfield … quality solutions. Key responsibilities include: Designing and developing .NET Core services and APIs Building abstraction layers between front-end applications and search technologies Developing API services Working with Azure cloud services Designing and maintaining SQL databases Collaborating with senior stakeholders and engineers to refine requirements Contributing to architecture ...

Experis is seeking an Application Developer in Sheffield with a strong focus on identity API development, data ingestion, and event-driven architectures. You will work on secure, scalable identity and access workflows across Google Cloud Platform, integrating identity services with APIs and Pub/Sub pipelines. The role ...

week in the office. Key technical requirements; Proven hands-on Angular or Bigcommerce (or similar) website, mobile app support experience Proven hands-on API development or support experience Proven hands-on Azure ADF, logic app, function app, storage accounts development or support exp click apply for full ...

Architect to take a leading role in designing robust, scalable, and innovative technology solutions for our clients. You will work closely with stakeholders and development teams to ensure the alignment of technology with business goals, while championing best practices in architectural design and delivery. Key Responsibilities Collaborate with development … lead and influence technical discussions. Proven experience as a Technical Architect or similar role. In‐depth knowledge of system design, software architecture, and development methodologies. Experience with cloud platforms (e.g., AWS, Azure, Google Cloud). Expertise in architectural design, data pipelines, cloud platforms, and API development. Knowledge ...

latest technologies. As a Senior Software Engineer, you'll be a key player in shaping the future of banking. You'll lead the design, development, and maintenance of quality practices while collaborating with other engineers, architects, and stakeholders to understand the objectives, goals, and requirements of the projects … working on. Key Responsibilities: Lead the design and development of software that delivers a positive customer experienceCreate and maintain high-quality software using Python as your primary languageOptimize our software engineering capability and new technologiesFollow best engineering practices such as TDD, BDD, Pair-programmingMentor and collaborate with other engineers ...

MUST BE ELIGIBLE FOR BPSS MUST BE PAYE THROUGH UMBRELLA We are looking for a highly skilled Application Developer with strong expertise in identity API development, data ingestion and transformation, and event-driven (Pub/Sub) architectures click apply for full job details ...

Sanderson is seeking a Software Developer to join a healthcare technology team in Cambridge. The role focuses on backend services, API development and data access layers, with opportunities to contribute to frontend work where needed. You will design, build and test software for laboratory operations, cloud platforms ...

joining a high profile and linchpin team whose work is at the heart of many modern engineering tools. Along with career development and the chance to grow your cloud software skills, the company offers highly competitive remuneration, an excellent benefits package and work-life balance including hybrid work. … core requirements: A senior software engineer’s design and coding ability and track record, judgement, mentoring and review skills. Strong commercial-grade C# software development with awareness of modern .NET, how to get the most from the language, and establish good patterns and factoring. Microservice development experience – with ...

joining a high profile and linchpin team whose work is at the heart of many modern engineering tools. Along with career development and the chance to grow your cloud software skills, the company offers highly competitive remuneration, an excellent benefits package and work-life balance including hybrid work. … core requirements: • A senior software engineer’s design and coding ability and track record, judgement, mentoring and review skills. • Strong commercial-grade C# software development with awareness of modern .NET, how to get the most from the language, and establish good patterns and factoring. • Microservice development experience – with ...