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38 Contract API jobs in Oxfordshire + 20 miles
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Lead PHP Developer
Lead PHP Developer
Rise Technical
Swindon, Wiltshire
£55000.00 - £65000.00 per annum + Bonus + Progression
Swindon (Hybrid - 3 days per-week) £55,000 - £65,000 + Bonus + Progression + Pension - An excellent opportunity awaits a Software Developer with strong PHP experience to join a growing technology-first business. The role offers technical variety, ownership and clear progression opportunities. This company is an established but expanding B2B business, with technology as its key differentiator they're looking to further grow and diversify their SaaS solutions offering. In this role, you'll take ownership of both new and existing systems, maintaining legacy code where needed while leading the design and development of new solutions. You'll work closely with the Head of Software to align on technical direction, while taking the hands-on lead in building and improving Laravel-based applications, managing APIs and third-party integrations.
Swindon (Hybrid - 3 days per-week) £55,000 - £65,000 + Bonus + Progression + Pension - An excellent opportunity awaits a Software Developer with strong PHP experience to join a growing technology-first business. The role offers technical variety, ownership and clear progression opportunities. This company is an established but expanding B2B business, with technology as its key differentiator they're looking to further grow and diversify their SaaS solutions offering. In this role, you'll take ownership of both new and existing systems, maintaining legacy code where needed while leading the design and development of new solutions. You'll work closely with the Head of Software to align on technical direction, while taking the hands-on lead in building and improving Laravel-based applications, managing APIs and third-party integrations.
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Do you want your coding skills to make a real difference? Join a mission-driven tech-for-good organisation and help build websites and digital tools that positively impact communities. Were looking for a talented WordPress Developerto take ownership of digital platforms. Youll work on everything from themes and custom plugins to integrations and cloud-based solutions, ensuring the sites are fast, secure, and scalable. * Fully remote within the UK * Salary up to £50,000 * 33 days annual leave * Pension & healthcare * A role with genuine social impact * A supportive, mission-driven workplace * Professional development and clear career progression * Building and enhancing WordPress websites with clean, maintainable code * Collaborating with designers, content creators, and stakeholders to bring digital ideas to life
Do you want your coding skills to make a real difference? Join a mission-driven tech-for-good organisation and help build websites and digital tools that positively impact communities. Were looking for a talented WordPress Developerto take ownership of digital platforms. Youll work on everything from themes and custom plugins to integrations and cloud-based solutions, ensuring the sites are fast, secure, and scalable. * Fully remote within the UK * Salary up to £50,000 * 33 days annual leave * Pension & healthcare * A role with genuine social impact * A supportive, mission-driven workplace * Professional development and clear career progression * Building and enhancing WordPress websites with clean, maintainable code * Collaborating with designers, content creators, and stakeholders to bring digital ideas to life
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Based at client locations, working remotely, or based in our Godalming or Milton Keynes offices. Salary: up to £65,000, plus company benefits. Due to the nature of this position, you must be willing and eligible to achieve a minimum of SC clearance. To be eligible, you must have been a resident in the UK for a minimum of 5 years and have the right to work in the UK. About Us - Triad Group Plc is an award-winning digital, data, and solutions consultancy with over 35 years' experience primarily serving the UK public sector and central government. We deliver high-quality solutions that make a real difference to users, citizens, and consumers. At Triad, collaboration thrives, knowledge is shared, and every voice matters. Our close-knit, supportive culture ensures you're valued from day one. Whether working with cutting-edge tech or shaping strategy for national-scale proj
Based at client locations, working remotely, or based in our Godalming or Milton Keynes offices. Salary: up to £65,000, plus company benefits. Due to the nature of this position, you must be willing and eligible to achieve a minimum of SC clearance. To be eligible, you must have been a resident in the UK for a minimum of 5 years and have the right to work in the UK. About Us - Triad Group Plc is an award-winning digital, data, and solutions consultancy with over 35 years' experience primarily serving the UK public sector and central government. We deliver high-quality solutions that make a real difference to users, citizens, and consumers. At Triad, collaboration thrives, knowledge is shared, and every voice matters. Our close-knit, supportive culture ensures you're valued from day one. Whether working with cutting-edge tech or shaping strategy for national-scale proj
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At Grundon, we are on the lookout for a dynamic, passionate, and driven individual to join our Data team based in Benson. Reporting into the Head of IT/ Finance Director you will play a key role in driving our mission forward managing and optimising the organisation’s data warehouse to ensure high performance, reliability, and accessibility. This role will progressively encompass the design and development of a new data warehouse, along with the structured oversight of its migration process. Working closely within a cross-functional team, you will help translate business requirements into effective data solutions that drive informed, data-driven decision-making across the organisation. Please note as part of this role you will be required to attend to the office a minimum of 3 days each week - What will you do
At Grundon, we are on the lookout for a dynamic, passionate, and driven individual to join our Data team based in Benson. Reporting into the Head of IT/ Finance Director you will play a key role in driving our mission forward managing and optimising the organisation’s data warehouse to ensure high performance, reliability, and accessibility. This role will progressively encompass the design and development of a new data warehouse, along with the structured oversight of its migration process. Working closely within a cross-functional team, you will help translate business requirements into effective data solutions that drive informed, data-driven decision-making across the organisation. Please note as part of this role you will be required to attend to the office a minimum of 3 days each week - What will you do
FEATURED
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At Neptune, we believe great technology starts with great people - and great decisions start with great data. From managing stock and inventory to understanding our customers, data drives everything we do. We're looking for a Data Engineer to help shape how we collect, structure, and use data across the business. You'll play a key role in delivering reliable, high-quality datasets that power smarter, faster decisions every day. This is a hands-on role where you'll design and maintain the data pipelines, integrations, and platforms that keep Neptune's data accurate, accessible, and secure. Your Key Responsibilities * Design, build, and maintain robust ETL pipelines to efficiently extract, transform, and load data from multiple sources. * Develop and optimise SQL queries, stored procedures, and database scripts to deliver high-performance data processing.
At Neptune, we believe great technology starts with great people - and great decisions start with great data. From managing stock and inventory to understanding our customers, data drives everything we do. We're looking for a Data Engineer to help shape how we collect, structure, and use data across the business. You'll play a key role in delivering reliable, high-quality datasets that power smarter, faster decisions every day. This is a hands-on role where you'll design and maintain the data pipelines, integrations, and platforms that keep Neptune's data accurate, accessible, and secure. Your Key Responsibilities * Design, build, and maintain robust ETL pipelines to efficiently extract, transform, and load data from multiple sources. * Develop and optimise SQL queries, stored procedures, and database scripts to deliver high-performance data processing.
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Lead PHP Developer
Lead PHP Developer
Rise Technical Recruitment Limited
Swindon (SN1)
£55000.00 - £65000.00 per annum + Bonus + Progression
Swindon (Hybrid - 3 days per-week) £55,000 - £65,000 + Bonus + Progression + Pension - An excellent opportunity awaits a Software Developer with strong PHP experience to join a growing technology-first business. The role offers technical variety, ownership and clear progression opportunities. This company is an established but expanding B2B business, with technology as its key differentiator they're looking to further grow and diversify their SaaS solutions offering. In this role, you'll take ownership of both new and existing systems, maintaining legacy code where needed while leading the design and development of new solutions. You'll work closely with the Head of Software to align on technical direction, while taking the hands-on lead in building and improving Laravel-based applications, managing APIs and third-party integrations.
Swindon (Hybrid - 3 days per-week) £55,000 - £65,000 + Bonus + Progression + Pension - An excellent opportunity awaits a Software Developer with strong PHP experience to join a growing technology-first business. The role offers technical variety, ownership and clear progression opportunities. This company is an established but expanding B2B business, with technology as its key differentiator they're looking to further grow and diversify their SaaS solutions offering. In this role, you'll take ownership of both new and existing systems, maintaining legacy code where needed while leading the design and development of new solutions. You'll work closely with the Head of Software to align on technical direction, while taking the hands-on lead in building and improving Laravel-based applications, managing APIs and third-party integrations.
PREMIUM
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We're seeking an experienced Senior Full Stack Developer to join our clients expanding technology team. In this role, you'll be instrumental in designing, developing, and maintaining high-quality, scalable web applications. You'll work across the full stack, collaborating closely with colleagues to deliver impactful, user-focused solutions. Key Responsibilities * Develop and maintain modern web applications using C# .NET (Core/Framework) and React. * Work with cross-functional teams to define requirements and deliver new features. * Write clean, scalable, and well-tested code. * Diagnose and resolve application issues to ensure optimal performance. You will have - * 3+ years' experience as a Full Stack Developer. * Strong hands-on expertise with C# .NET (Core) and React. * Good understanding of REST APIs, SQL/NoSQL databases, and Git version control.
We're seeking an experienced Senior Full Stack Developer to join our clients expanding technology team. In this role, you'll be instrumental in designing, developing, and maintaining high-quality, scalable web applications. You'll work across the full stack, collaborating closely with colleagues to deliver impactful, user-focused solutions. Key Responsibilities * Develop and maintain modern web applications using C# .NET (Core/Framework) and React. * Work with cross-functional teams to define requirements and deliver new features. * Write clean, scalable, and well-tested code. * Diagnose and resolve application issues to ensure optimal performance. You will have - * 3+ years' experience as a Full Stack Developer. * Strong hands-on expertise with C# .NET (Core) and React. * Good understanding of REST APIs, SQL/NoSQL databases, and Git version control.
We're seeking an experienced Senior Full Stack Developer to join our clients expanding technology team. In this role, you'll be instrumental in designing, developing, and maintaining high-quality, scalable web applications. You'll work across the full stack, collaborating closely with colleagues to deliver impactful, user-focused solutions. Key Responsibilities * Develop and maintain modern web applications using C# .NET (Core/Framework) and React. * Work with cross-functional teams to define requirements and deliver new features. * Write clean, scalable, and well-tested code. * Diagnose and resolve application issues to ensure optimal performance. You will have - * 3+ years' experience as a Full Stack Developer. * Strong hands-on expertise with C# .NET (Core) and React. * Good understanding of REST APIs, SQL/NoSQL databases, and Git version control.
We're seeking an experienced Senior Full Stack Developer to join our clients expanding technology team. In this role, you'll be instrumental in designing, developing, and maintaining high-quality, scalable web applications. You'll work across the full stack, collaborating closely with colleagues to deliver impactful, user-focused solutions. Key Responsibilities * Develop and maintain modern web applications using C# .NET (Core/Framework) and React. * Work with cross-functional teams to define requirements and deliver new features. * Write clean, scalable, and well-tested code. * Diagnose and resolve application issues to ensure optimal performance. You will have - * 3+ years' experience as a Full Stack Developer. * Strong hands-on expertise with C# .NET (Core) and React. * Good understanding of REST APIs, SQL/NoSQL databases, and Git version control.
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Software Developer (.Net)
Software Developer (.Net)
Spectrum It Recruitment Limited
Reading (RG1)
£50000 - £60000 per annum + Benefits & Progression
API Development
API Development
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Senior Frontend Developer
Senior Frontend Developer
Pathfinder Business Solutions Ltd
Milton Keynes (MK9), MK9 3QA
From £50,000 to £60,000 per annum Full Benefits Pack
REST-based API development
REST-based API development
OrganOx is an innovative, fast-paced, global medical device company with a mission to save lives by making every donated organ count. We are a commercial stage organ technology company, spun out of the University of Oxford in 2008, committed to improving transplantation outcomes throughout the world. The companys first product, the OrganOx metra normothermic machine perfusion (NMP) system for liver transplantation, has been used to support more than 5,000 liver transplant operations globally. Position Summary - The Digital Architect is responsible for providing expertise in the strategy, design, and governance of digital projects, with a focus on scalable and secure solutions. This role supports the ongoing evolution of OrganOxs digital products, ensuring alignment with business objectives and regulatory requirements..
OrganOx is an innovative, fast-paced, global medical device company with a mission to save lives by making every donated organ count. We are a commercial stage organ technology company, spun out of the University of Oxford in 2008, committed to improving transplantation outcomes throughout the world. The companys first product, the OrganOx metra normothermic machine perfusion (NMP) system for liver transplantation, has been used to support more than 5,000 liver transplant operations globally. Position Summary - The Digital Architect is responsible for providing expertise in the strategy, design, and governance of digital projects, with a focus on scalable and secure solutions. This role supports the ongoing evolution of OrganOxs digital products, ensuring alignment with business objectives and regulatory requirements..
Good understanding of OpenAPI / API documentation.
Good understanding of OpenAPI / API documentation.
NEW
Azure API Management (APIM)
Azure API Management (APIM)
332 exact matches jobs are outside your preferred location
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Mastercard Developers ( is the primary API platform for Mastercard partners to access a diverse range of payment, data, loyalty, and security APIs. The team is responsible for delivering an experience that ensures developers can quickly find the right API, assess its technical capabilities and integrate it into new and innovative solutions. Act as subject matter expert for Mastercard Developers API Platform and services to support customer integrations on occasion - Proven track record in API based products
Mastercard Developers ( is the primary API platform for Mastercard partners to access a diverse range of payment, data, loyalty, and security APIs. The team is responsible for delivering an experience that ensures developers can quickly find the right API, assess its technical capabilities and integrate it into new and innovative solutions. Act as subject matter expert for Mastercard Developers API Platform and services to support customer integrations on occasion - Proven track record in API based products
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Product management, within digital services or public sector environments experienced with Apigee (preferred) or similar API management platforms, including API publishing, monitoring, and access control. * Lead the end-to-end product lifecycle for the onboarding service, from discovery through delivery and iteration for Clients API providers. * Define the long-term vision and strategy for API products, focusing on the needs of developers, clinicians, and patients. * Proven experience in product management, ideally within digital services or public sector environments experienced with Apigee (preferred) or similar API management platforms, including API publishing, monitoring, and access control. * Lead the end-to-end product lifecycle for the onboarding service, from
Product management, within digital services or public sector environments experienced with Apigee (preferred) or similar API management platforms, including API publishing, monitoring, and access control. * Lead the end-to-end product lifecycle for the onboarding service, from discovery through delivery and iteration for Clients API providers. * Define the long-term vision and strategy for API products, focusing on the needs of developers, clinicians, and patients. * Proven experience in product management, ideally within digital services or public sector environments experienced with Apigee (preferred) or similar API management platforms, including API publishing, monitoring, and access control. * Lead the end-to-end product lifecycle for the onboarding service, from
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Senior Service Management & Integration Solution Architect
Senior Service Management & Integration Solution Architect
DXC Technology
London
Unspecified Competitive Salary & Benefits
Extensive knowledge and experience with modern ITSM tools, ITIL and API technologies, solutions, and architectures. * Service Integrations using API based policies
Extensive knowledge and experience with modern ITSM tools, ITIL and API technologies, solutions, and architectures. * Service Integrations using API based policies
PREMIUM
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Solid understanding of REST API development, integrations, and modern application architecture.
Solid understanding of REST API development, integrations, and modern application architecture.
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Champion best practices across testing disciplines including unit, integration, UI, API, and performance * Knowledge of web, mobile, API/microservices testing and contract testing (e.g. PACT)
Champion best practices across testing disciplines including unit, integration, UI, API, and performance * Knowledge of web, mobile, API/microservices testing and contract testing (e.g. PACT)
PREMIUM
The successful candidate will demonstrate significant expertise in Microsoft Azure services, Web API, Azure App Service, .NET Core, and Visual Studio. * Design and implement scalable technology solutions using Web API, Azure App Service, and .NET Core to satisfy business requirements and enhance operational efficiency. * Define architectural patterns for microservices and API management. Azure API Development * Develop and maintain APIs using Azure API Management, Web API, and .NET Core to enable secure and efficient integrations. * Ensure API performance, security, and compliance with best practices. * Monitor and optimize application and API performance using Azure Monitor, Application Insights, and Log Analytics. * Expertise in Mic
The successful candidate will demonstrate significant expertise in Microsoft Azure services, Web API, Azure App Service, .NET Core, and Visual Studio. * Design and implement scalable technology solutions using Web API, Azure App Service, and .NET Core to satisfy business requirements and enhance operational efficiency. * Define architectural patterns for microservices and API management. Azure API Development * Develop and maintain APIs using Azure API Management, Web API, and .NET Core to enable secure and efficient integrations. * Ensure API performance, security, and compliance with best practices. * Monitor and optimize application and API performance using Azure Monitor, Application Insights, and Log Analytics. * Expertise in Mic
Extensive experience in API development both REST and SOAP. Experience with IntelliJ, Eclipse editor api.
Extensive experience in API development both REST and SOAP. Experience with IntelliJ, Eclipse editor api.
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Founding Full Stack Engineer (Python/TypeScript) – London - £180K
Founding Full Stack Engineer (Python/TypeScript) – London - £180K
Halian Technology Limited
London
Up to £185,000 per annum High founding member equity and Shares
API integrations, ETL, schema validation
API integrations, ETL, schema validation
Founding Full Stack Engineer (Python/TypeScript) – London - £180K
Founding Full Stack Engineer (Python/TypeScript) – London - £180K
Halian Technology Limited
London
Up to £185,000 per annum High founding member equity
API integrations, ETL, schema validation
API integrations, ETL, schema validation
Analyse technical capabilities, integrations, and API readiness.
Analyse technical capabilities, integrations, and API readiness.
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Software Engineer (C#, .Net & Visual Studio)
Software Engineer (C#, .Net & Visual Studio)
TECHNOLOGY RESOURCING LIMITED
Bellfields, Guildford (GU1), GU1
From £40,000 to £51,000 per annum Annual bonus (currently £4.5–6K)
A Breadth of Exciting Projects: From AI-powered analytics and Bluetooth tracking to route optimization and custom API development, youll be solving real-world problems with modern tech.
A Breadth of Exciting Projects: From AI-powered analytics and Bluetooth tracking to route optimization and custom API development, youll be solving real-world problems with modern tech.
NEW
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MUST HAVES: Proficient in Flutter / React Native / MAUI, Mobile App Payment Services, strong API consumption, and App security best practices.
MUST HAVES: Proficient in Flutter / React Native / MAUI, Mobile App Payment Services, strong API consumption, and App security best practices.
FEATURED