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1 API job in Cheltenham + 20 miles
150 exact matches jobs are outside your preferred location
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We're currently working with a growing SaaS company based in Banbury that are looking for a Senior Software Engineer skilled with C# ASP.NET, Angular, and SQL. This role will naturally grow in to a Lead Engineer position as the team grows. You will be working to develop and build their new payroll project, which will be rolling out nationally, and then internationally. This role is based in Banbury, and it will require you to be onsite a minimum of two days per week. * Professional software engineering experience (typically 5+ years) using C# / ASP.NET (Core & Framework) and modern JavaScript/TypeScript frameworks, particularly Angular (v8+). * Significant understanding and practical experience with relational databases (MySQL /PostgreSQL preferred). * Expertise in version control systems (Git) and branching strategies (Gitflow).
We're currently working with a growing SaaS company based in Banbury that are looking for a Senior Software Engineer skilled with C# ASP.NET, Angular, and SQL. This role will naturally grow in to a Lead Engineer position as the team grows. You will be working to develop and build their new payroll project, which will be rolling out nationally, and then internationally. This role is based in Banbury, and it will require you to be onsite a minimum of two days per week. * Professional software engineering experience (typically 5+ years) using C# / ASP.NET (Core & Framework) and modern JavaScript/TypeScript frameworks, particularly Angular (v8+). * Significant understanding and practical experience with relational databases (MySQL /PostgreSQL preferred). * Expertise in version control systems (Git) and branching strategies (Gitflow).
FEATURED
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We’re working with a hi-tech veteran owned simulation/ data-analytics company which services the defence and security market. They are looking to expand their in-house software engineering capability with the addition of a Full Stack Software Developer. This is a Full Stack role, but the client is open to Front End Developers, looking to develop back end skills, or back end devs interested in learning some front end. This is a great opportunity to work on secure & high-impact defence systems. This is a junior to mid-level role that would suite developers with ideally 2-5 years’ experience, please still apply if your experience levels fall’s outside this. * Developing full-stack solutions for secure defence applications * Working closely with software engineers, PMs, and security stakeholders * Building reusable, testable and scalable code with high quality and perform
We’re working with a hi-tech veteran owned simulation/ data-analytics company which services the defence and security market. They are looking to expand their in-house software engineering capability with the addition of a Full Stack Software Developer. This is a Full Stack role, but the client is open to Front End Developers, looking to develop back end skills, or back end devs interested in learning some front end. This is a great opportunity to work on secure & high-impact defence systems. This is a junior to mid-level role that would suite developers with ideally 2-5 years’ experience, please still apply if your experience levels fall’s outside this. * Developing full-stack solutions for secure defence applications * Working closely with software engineers, PMs, and security stakeholders * Building reusable, testable and scalable code with high quality and perform
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Lead Technical Architect
Lead Technical Architect
Department for Work and Pensions (DWP)
Lee Bank, B1 1HH
From £72,664 to £99,836 per annum plus 28.97% pension contributions
Microservice and API-led architecture and integration design tools, techniques and best practice.
Microservice and API-led architecture and integration design tools, techniques and best practice.
NEWPREMIUM
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Microservice and API-led architecture and integration design tools, techniques and best practice.
Microservice and API-led architecture and integration design tools, techniques and best practice.
NEWPREMIUM
Lead Technical Architect
Lead Technical Architect
Intellectual Property Office
Rhiwderyn, NP10 8QQ
From £64,079 to £75,701 per annum
Your experience of developing API based solutions will be essential to improve our integration with both internal and external interfaces. * Experience of API-driven architecture, extensible, loosely coupled systems * API Design using Swagger or Postman
Your experience of developing API based solutions will be essential to improve our integration with both internal and external interfaces. * Experience of API-driven architecture, extensible, loosely coupled systems * API Design using Swagger or Postman
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Microservice and API-led architecture and integration design tools, techniques and best practice.
Microservice and API-led architecture and integration design tools, techniques and best practice.
NEWPREMIUM
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Strong integration, E2E and API testing experience
Strong integration, E2E and API testing experience
PREMIUM
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Enterprise Systems Architect
Enterprise Systems Architect
Convergence Group Ltd
Shirley, B90 4RZ
£75000.00 to £95000.00 per year plus additional benefits
Skilled in modern architectural patterns like microservices, API-driven design and event-driven architecture.
Skilled in modern architectural patterns like microservices, API-driven design and event-driven architecture.
NEWPREMIUM
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Conduct functional, integration, end-to-end, and API testing. * Strong experience in integration, E2E, functional, and API testing.
Conduct functional, integration, end-to-end, and API testing. * Strong experience in integration, E2E, functional, and API testing.
NEWFEATURED
Lead integration, functional, end-to-end, and API testing activities. * Strong experience in integration, E2E, functional, and API testing.
Lead integration, functional, end-to-end, and API testing activities. * Strong experience in integration, E2E, functional, and API testing.
NEWFEATURED
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Lead QA Automation Engineer, C#, Home Based
Lead QA Automation Engineer, C#, Home Based
Fdo Consulting Limited
Lee Bank, B1
£55000 - £68000 per annum + home based + benefits
Strong Automation, API, C#, Selenium and mentoring skills required. * API Testing * Very strong API testing. This is a great role for a candidate who has very strong C#, API testing and automation.
Strong Automation, API, C#, Selenium and mentoring skills required. * API Testing * Very strong API testing. This is a great role for a candidate who has very strong C#, API testing and automation.
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They are seeking an experienced Test Engineer to join their team, responsible for integration, functional, end-to-end, and API testing of critical IT systems. * Plan, execute, and assure integration, functional, end-to-end, and API testing activities * Strong knowledge of integration, functional, E2E, and API testing
They are seeking an experienced Test Engineer to join their team, responsible for integration, functional, end-to-end, and API testing of critical IT systems. * Plan, execute, and assure integration, functional, end-to-end, and API testing activities * Strong knowledge of integration, functional, E2E, and API testing
NEW
Responsible for backend architecture, API design, and integration strategy.
Responsible for backend architecture, API design, and integration strategy.
FEATURED
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Knowledge of AI, machine learning integrations, or API development.
Knowledge of AI, machine learning integrations, or API development.
NEWFEATURED
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Passion for clean code, API design, and maintainable architecture - Senior Software Engineer, Robotics, C++, Python, ROS 2, DDS, CUDA, PyTorch, TensorRT, Real-Time Systems, Embedded Systems, Low Latency, CI/CD, API Design, Linux Kernel, Multithreading, GPU Optimisation, Robotics Engineer, Autonomous Systems, London Engineering Jobs, Robotics Startups, High Performance Computing
Passion for clean code, API design, and maintainable architecture - Senior Software Engineer, Robotics, C++, Python, ROS 2, DDS, CUDA, PyTorch, TensorRT, Real-Time Systems, Embedded Systems, Low Latency, CI/CD, API Design, Linux Kernel, Multithreading, GPU Optimisation, Robotics Engineer, Autonomous Systems, London Engineering Jobs, Robotics Startups, High Performance Computing
NEWFEATURED
Contribute to backend/API testing and support security testing initiatives. * Strong knowledge of API testing and backend validation.
Contribute to backend/API testing and support security testing initiatives. * Strong knowledge of API testing and backend validation.
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Software Engineer - Unified Client Experience
Software Engineer - Unified Client Experience
Hargreaves Lansdown
BS1, Bristol
£6000 - £45000 per annum + Pension, Bonus etc
Understanding of Microservices & principles of RESTful API development, including structuring, documenting, versioning, testing and stubbing/mocking.
Understanding of Microservices & principles of RESTful API development, including structuring, documenting, versioning, testing and stubbing/mocking.
NEWFEATURED
Technology domains within payments: DevOps, API, Analytics, Cloud adoption and Process Automation;
Technology domains within payments: DevOps, API, Analytics, Cloud adoption and Process Automation;
NEW
Develop efficient data access patterns within our Python API to support application performance and scalability * Experience with event-driven design patterns and frontend state management (Redux, Context API)
Develop efficient data access patterns within our Python API to support application performance and scalability * Experience with event-driven design patterns and frontend state management (Redux, Context API)
NEW
We want you to #JOINTHEREBELLION! For 30 years weve been independently developing and publishing incredible video games at our multiple studios founded by Jason & Chris Kingsley, but Rebellion is more than just games. We have our own film studio, we create board games, publish books, and through 2000AD, publish comics and graphic novels such as the amazing Judge Dredd. We are seeking an experienced Experienced JavaScript Developer (Full Stack) to join our Code team, to help build and support internal and external web applications and APIs to support our game engine team. The successful candidate will join a small team and user their specialist JavaScript knowledge to be involved in the entire software development lifecycle, from requirements gathering and system design to implementation, testing, deployment, and maintenance.
We want you to #JOINTHEREBELLION! For 30 years weve been independently developing and publishing incredible video games at our multiple studios founded by Jason & Chris Kingsley, but Rebellion is more than just games. We have our own film studio, we create board games, publish books, and through 2000AD, publish comics and graphic novels such as the amazing Judge Dredd. We are seeking an experienced Experienced JavaScript Developer (Full Stack) to join our Code team, to help build and support internal and external web applications and APIs to support our game engine team. The successful candidate will join a small team and user their specialist JavaScript knowledge to be involved in the entire software development lifecycle, from requirements gathering and system design to implementation, testing, deployment, and maintenance.
Platinum Pro - Tuesday, 16 September 2025 - Full time - Permanent - Birmingham - 109 - 109 Delta - Bravuras Commitment and Mission - At Bravura Solutions, collaboration, diversity and excellence matter. We value your ideas, giving you room to be curious and innovate in an exciting, fast-paced, and flexible environment. We look for many different skills and abilities, as well as how you can add value to Bravura and our culture. As a Global FinTech market leader and ASX listed company, Bravura is a trusted partner to over 350 leading financial services clients, delivering wealth management technology and products. We invest significantly in our technology hubs and innovation labs, which inspire and drive our creative, future-focused mindset. We take pride in developing cutting-edge, digital first technology solutions that support our clients to achieve financial securit
Platinum Pro - Tuesday, 16 September 2025 - Full time - Permanent - Birmingham - 109 - 109 Delta - Bravuras Commitment and Mission - At Bravura Solutions, collaboration, diversity and excellence matter. We value your ideas, giving you room to be curious and innovate in an exciting, fast-paced, and flexible environment. We look for many different skills and abilities, as well as how you can add value to Bravura and our culture. As a Global FinTech market leader and ASX listed company, Bravura is a trusted partner to over 350 leading financial services clients, delivering wealth management technology and products. We invest significantly in our technology hubs and innovation labs, which inspire and drive our creative, future-focused mindset. We take pride in developing cutting-edge, digital first technology solutions that support our clients to achieve financial securit
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Company Description - Founded by experienced entrepreneurs and engineers in 2016, Pismo is a technology company that provides a comprehensive processing platform for banking, card issuing and financial market infrastructure and helps customers innovate and build the next generation of banking and payment solutions. Pismo joined Visa in 2024. Leveraging Visas solutions, our core platform, and an expanding suite of capabilities, Pismo addresses the technological challenges that large banks, marketplaces, and fintech companies face in migrating from legacy systems to more advanced technology in the market. Pismos cloud-based platform empowers firms to build and launch financial products rapidly, scaling as they grow to have a broader audience while keeping high security and availability standards. Pismos 500+ employees are located in more than 10 countries around the wor
Company Description - Founded by experienced entrepreneurs and engineers in 2016, Pismo is a technology company that provides a comprehensive processing platform for banking, card issuing and financial market infrastructure and helps customers innovate and build the next generation of banking and payment solutions. Pismo joined Visa in 2024. Leveraging Visas solutions, our core platform, and an expanding suite of capabilities, Pismo addresses the technological challenges that large banks, marketplaces, and fintech companies face in migrating from legacy systems to more advanced technology in the market. Pismos cloud-based platform empowers firms to build and launch financial products rapidly, scaling as they grow to have a broader audience while keeping high security and availability standards. Pismos 500+ employees are located in more than 10 countries around the wor
Job summary - THIS POST IS FIXED TERM FOR 33 MONTHS DUE TO FUNDING. We are seeking a highly skilled and motivated Lead Developer to join our dynamic Digital and Data team at Public Health Wales. You'll focus on solving complex challenges by leading the technical design, development, and delivery of high-quality digital solutions that support national health services. By taking impactful decisions, and driving the success of your team, you'll help shape the future of digital health services in Wales. It's a great time to join us as we're adopting new technologies and growing our technical professions. The role sits within the Research, Data and Digital Directorate and contributes directly to the organisation's strategic goals. You'll work closely with cross-functional teams, senior leaders, and external partners to help shape effective, future-ready services across the
Job summary - THIS POST IS FIXED TERM FOR 33 MONTHS DUE TO FUNDING. We are seeking a highly skilled and motivated Lead Developer to join our dynamic Digital and Data team at Public Health Wales. You'll focus on solving complex challenges by leading the technical design, development, and delivery of high-quality digital solutions that support national health services. By taking impactful decisions, and driving the success of your team, you'll help shape the future of digital health services in Wales. It's a great time to join us as we're adopting new technologies and growing our technical professions. The role sits within the Research, Data and Digital Directorate and contributes directly to the organisation's strategic goals. You'll work closely with cross-functional teams, senior leaders, and external partners to help shape effective, future-ready services across the
We want you to #JOINTHEREBELLION! For 30 years weve been independently developing and publishing incredible video games at our multiple studios founded by Jason & Chris Kingsley, but Rebellion is more than just games. We have our own film studio, we create board games, publish books, and through 2000AD, publish comics and graphic novels such as the amazing Judge Dredd. We are seeking an experienced and highly skilled back-end Senior Online Developer to join our tech team, to help build and support internal and external web APIs to support our game engine team. The successful candidate will join a small team and user their specialist JavaScript knowledge to be involved in the entire software development lifecycle, from requirements gathering and system design to implementation, testing, deployment, and maintenance.
We want you to #JOINTHEREBELLION! For 30 years weve been independently developing and publishing incredible video games at our multiple studios founded by Jason & Chris Kingsley, but Rebellion is more than just games. We have our own film studio, we create board games, publish books, and through 2000AD, publish comics and graphic novels such as the amazing Judge Dredd. We are seeking an experienced and highly skilled back-end Senior Online Developer to join our tech team, to help build and support internal and external web APIs to support our game engine team. The successful candidate will join a small team and user their specialist JavaScript knowledge to be involved in the entire software development lifecycle, from requirements gathering and system design to implementation, testing, deployment, and maintenance.
Oxford, GB, OX4 4DQ - Company: Nominet - Were Nominet a world-leading domain name registry operating at the heart of the UK internet. While we're best known for running .UK domains, our DNS expertise also underpins critical internet infrastructure that government services, including the NHS, rely on. As a public benefit company, our work has a positive impact on society. Weve donated millions to projects that use technology to improve peoples lives and have committed to delivering £60m worth of support over the next three years. As the Head of Software Engineering (Registry) at Nominet, you will lead a core technology engineering team to deliver industry leading Registry Systems for the internet.? This is a critical role with responsibility for engineering Nominets main line of business. You will manage a highly skilled team who are experts in Registry Systems and ful
Oxford, GB, OX4 4DQ - Company: Nominet - Were Nominet a world-leading domain name registry operating at the heart of the UK internet. While we're best known for running .UK domains, our DNS expertise also underpins critical internet infrastructure that government services, including the NHS, rely on. As a public benefit company, our work has a positive impact on society. Weve donated millions to projects that use technology to improve peoples lives and have committed to delivering £60m worth of support over the next three years. As the Head of Software Engineering (Registry) at Nominet, you will lead a core technology engineering team to deliver industry leading Registry Systems for the internet.? This is a critical role with responsibility for engineering Nominets main line of business. You will manage a highly skilled team who are experts in Registry Systems and ful