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45 Contract API jobs in Oxfordshire + 20 miles
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We're looking for a highly skilled Senior Full Stack Developer with strong experience in C# .NET and React to join our growing tech team. You'll play a key role in designing, building, and maintaining robust, scalable web applications, working across the full stack to deliver high-quality solutions that drive real value. This is a hybrid role with two days a week based in the office. * Design, develop, and maintain web applications using C# .NET (Core/Framework) and React. * Collaborate with cross-functional teams to define, design, and ship new features. * Write clean, scalable, and testable code. * Troubleshoot and debug applications. * Mentor junior developers and contribute to best practices. * 5+ years of experience as a Full Stack Developer. * Strong proficiency in C# .NET (Core) and React. * Solid understanding of REST APIs, SQL/NoSQL databases, and version con
We're looking for a highly skilled Senior Full Stack Developer with strong experience in C# .NET and React to join our growing tech team. You'll play a key role in designing, building, and maintaining robust, scalable web applications, working across the full stack to deliver high-quality solutions that drive real value. This is a hybrid role with two days a week based in the office. * Design, develop, and maintain web applications using C# .NET (Core/Framework) and React. * Collaborate with cross-functional teams to define, design, and ship new features. * Write clean, scalable, and testable code. * Troubleshoot and debug applications. * Mentor junior developers and contribute to best practices. * 5+ years of experience as a Full Stack Developer. * Strong proficiency in C# .NET (Core) and React. * Solid understanding of REST APIs, SQL/NoSQL databases, and version con
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.NET Software Engineer - Oxford (Hybrid) - Salary £50k (DOE) We are delighted to be partnering with a successful SaaS Company that is revolutionising the way businesses handle transactions with their cutting-edge EPOS platform. We're currently looking for an experienced .NET Software Engineer to help take their platform to the next level. About the role - As a .NET Software Engineer, you'll be part of a collaborative, agile development team resonsible for designing, building, and maintaining scalable applications. You'll work across the full Microsoft Technology stack, contributing to both new feature development and performance optimisation of existing systems. * Design, develop, and maintain robust software components for their EPOS platform using C#, .NET 6/7, and ASP.NET Core. * Build and integrate RESTful APIs, microservices, and backend services that ensure high
.NET Software Engineer - Oxford (Hybrid) - Salary £50k (DOE) We are delighted to be partnering with a successful SaaS Company that is revolutionising the way businesses handle transactions with their cutting-edge EPOS platform. We're currently looking for an experienced .NET Software Engineer to help take their platform to the next level. About the role - As a .NET Software Engineer, you'll be part of a collaborative, agile development team resonsible for designing, building, and maintaining scalable applications. You'll work across the full Microsoft Technology stack, contributing to both new feature development and performance optimisation of existing systems. * Design, develop, and maintain robust software components for their EPOS platform using C#, .NET 6/7, and ASP.NET Core. * Build and integrate RESTful APIs, microservices, and backend services that ensure high
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£45,000 to 60,000 GBP - Bonus - Hybrid WORKING - Location: Northampton, East Midlands - United Kingdom Type: Permanent - Location: Northampton (Hybrid - 2 days per week on-site) Salary: £50,000 - £60,000 + benefits - Sponsorship: Not available - About the Role - We are seeking an experienced Business Analyst (AVP level) to join a growing technology-focused change function within a forward-thinking organisation. This position is ideal for someone who enjoys analysing complex problems, engaging with stakeholders, and driving impactful technology solutions. You will play a key role in gathering requirements, shaping solutions, and supporting the delivery of business-critical initiatives. Key Responsibilities * Lead business analysis for small projects or workstreams within larger transformation programmes. * Gather and document clear, actionable business and functional r
£45,000 to 60,000 GBP - Bonus - Hybrid WORKING - Location: Northampton, East Midlands - United Kingdom Type: Permanent - Location: Northampton (Hybrid - 2 days per week on-site) Salary: £50,000 - £60,000 + benefits - Sponsorship: Not available - About the Role - We are seeking an experienced Business Analyst (AVP level) to join a growing technology-focused change function within a forward-thinking organisation. This position is ideal for someone who enjoys analysing complex problems, engaging with stakeholders, and driving impactful technology solutions. You will play a key role in gathering requirements, shaping solutions, and supporting the delivery of business-critical initiatives. Key Responsibilities * Lead business analysis for small projects or workstreams within larger transformation programmes. * Gather and document clear, actionable business and functional r
PREMIUM
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We're working with an innovative client on a cutting-edge delivery project focused on building a secure, cloud-based containerised API to interface with on-prem servers.
We're working with an innovative client on a cutting-edge delivery project focused on building a secure, cloud-based containerised API to interface with on-prem servers.
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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
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Cloud Engineer – Oracle Fusion & Cloud Infrastructure
Cloud Engineer – Oracle Fusion & Cloud Infrastructure
EFCI Group Ltd
Oxford (OX4)
From £60,000 to £70,000 per annum + £6500 travel allowance + 10% bonus
Familiarity with Oracle Integration Cloud (OIC) and API Gateway configurations.
Familiarity with Oracle Integration Cloud (OIC) and API Gateway configurations.
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API development experience
API development experience
FEATURED
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..
Principal Instrumentation and Control Engineer (PSC)
Principal Instrumentation and Control Engineer (PSC)
John Wood Group P.L.C.
Reading, Berkshire
Competitive
Very knowledgeable with a wide variety of national and international standards, especially related to ISA, ANSI, ASME, API, NFPA and IEC
Very knowledgeable with a wide variety of national and international standards, especially related to ISA, ANSI, ASME, API, NFPA and IEC
One day you could be helping a customer implement a source of truth, the next helping a customer manage their network as code, and the day after scoping a project to implement an API to expose all of the above.
One day you could be helping a customer implement a source of truth, the next helping a customer manage their network as code, and the day after scoping a project to implement an API to expose all of the above.
AWS API Gateway
AWS API Gateway
Define and manage the external access layer, creating a secure and governed API Gateway that empowers third-party developers to integrate independently. * Establish a consistent API publishing workflow for all internal squads, ensuring quality and governance as we scale our external offerings. You have a deep understanding of developer platforms and API ecosystems, with experience in both internal productivity and external integration. * Sector knowledge: You have technical fluency in areas like CI/CD, observability, API gateways, and infrastructure-as-code. Deliver a world-class external access layer, including a Developer Portal and governed API Gateway, to empower third-party developers to self-serve and integrate seamlessly.
Define and manage the external access layer, creating a secure and governed API Gateway that empowers third-party developers to integrate independently. * Establish a consistent API publishing workflow for all internal squads, ensuring quality and governance as we scale our external offerings. You have a deep understanding of developer platforms and API ecosystems, with experience in both internal productivity and external integration. * Sector knowledge: You have technical fluency in areas like CI/CD, observability, API gateways, and infrastructure-as-code. Deliver a world-class external access layer, including a Developer Portal and governed API Gateway, to empower third-party developers to self-serve and integrate seamlessly.
Be our senior technical expert and role model within our engineering team. Lead on architectural input, help shape the direction but be close enough to provide hands-on development, raising standards through mentoring, innovation and leading on technical excellence. You will support the growth and development of the team, guiding them in applying modern engineering practices including TDD, CI/CD and code quality gates. Lead in complex technical design, contribute to technical roadmaps, POCs and solution proposals, whilst developing and maintaining high quality, secure and scalable software. Promote collaboration and accountability, working with Product, QA and Devops in an Agile environment. You will likely be a Salesforce Certified Administrator (ADM201) and Salesforce Platform I Developer (Platform Developer II desirable) with 23+ years of hands-on experience with A
Be our senior technical expert and role model within our engineering team. Lead on architectural input, help shape the direction but be close enough to provide hands-on development, raising standards through mentoring, innovation and leading on technical excellence. You will support the growth and development of the team, guiding them in applying modern engineering practices including TDD, CI/CD and code quality gates. Lead in complex technical design, contribute to technical roadmaps, POCs and solution proposals, whilst developing and maintaining high quality, secure and scalable software. Promote collaboration and accountability, working with Product, QA and Devops in an Agile environment. You will likely be a Salesforce Certified Administrator (ADM201) and Salesforce Platform I Developer (Platform Developer II desirable) with 23+ years of hands-on experience with A
Make a difference and set the Salesforce Software Engineering bar through coaching, code quality and continuous improvement initiatives. Get the satisfaction of seeing your approach being embedded and showing others in the team the way, watch them benefit and thrive from your mentoring. We are transforming our Salesforce product, and you will likely be a Salesforce Certified Administrator (ADM201) and Salesforce Platform I Developer with 23+ years of hands-on experience with Apex, SOQL/SOSL, Lightning Web Components (LWC), and Aura Components, with experience building and maintaining custom objects, triggers, batch jobs, asynchronous processing, and declarative automation. * Salesforce Platform App Builder * Salesforce Platform Developer II * Salesforce CPQ Specialist / CPQ Developer * OmniStudio Developer (formerly Vlocity Developer)
Make a difference and set the Salesforce Software Engineering bar through coaching, code quality and continuous improvement initiatives. Get the satisfaction of seeing your approach being embedded and showing others in the team the way, watch them benefit and thrive from your mentoring. We are transforming our Salesforce product, and you will likely be a Salesforce Certified Administrator (ADM201) and Salesforce Platform I Developer with 23+ years of hands-on experience with Apex, SOQL/SOSL, Lightning Web Components (LWC), and Aura Components, with experience building and maintaining custom objects, triggers, batch jobs, asynchronous processing, and declarative automation. * Salesforce Platform App Builder * Salesforce Platform Developer II * Salesforce CPQ Specialist / CPQ Developer * OmniStudio Developer (formerly Vlocity Developer)
A role that provides a foundation for growth into more senior technical leadership roles. The Software Engineer is a hands-on contributor responsible for delivering secure, maintainable, and performant software as part of a cross-functional Agile team. Working closely with Product, QA, DevOps, and fellow engineers, this role helps shape technical solutions, contributes to quality practices, and continuously builds their own technical capabilities. We are transforming our Salesforce product, and you will likely be a Salesforce Certified Administrator (ADM201) and Salesforce Platform I Developer with 23+ years of hands-on experience with Apex, SOQL/SOSL, Lightning Web Components (LWC), and Aura Components, with experience building and maintaining custom objects, triggers, batch jobs, asynchronous processing, and declarative automation. * Salesforce Platform App Builder
A role that provides a foundation for growth into more senior technical leadership roles. The Software Engineer is a hands-on contributor responsible for delivering secure, maintainable, and performant software as part of a cross-functional Agile team. Working closely with Product, QA, DevOps, and fellow engineers, this role helps shape technical solutions, contributes to quality practices, and continuously builds their own technical capabilities. We are transforming our Salesforce product, and you will likely be a Salesforce Certified Administrator (ADM201) and Salesforce Platform I Developer with 23+ years of hands-on experience with Apex, SOQL/SOSL, Lightning Web Components (LWC), and Aura Components, with experience building and maintaining custom objects, triggers, batch jobs, asynchronous processing, and declarative automation. * Salesforce Platform App Builder
We are looking for a talented and adaptable DevOps Software Engineer with strong expertise in Python and Amazon Web Services (AWS). This role is ideal for candidates who are passionate about both application development and cloud infrastructure, and who enjoys building scalable, secure, and high-performance systems. You will play a key role in designing, developing, deploying, and maintaining cloud-native applications and infrastructure. Additionally, you will collaborate with the Network Operations Team to support and enhance network automation initiatives. This includes developing tools and scripts to automate network provisioning, configuration, and monitoring, helping to drive efficiency, consistency, and reliability across our hybrid cloud environment. Software Engineering (Python) * Design and develop backend services, APIs, and automation tools using Python (Fl
We are looking for a talented and adaptable DevOps Software Engineer with strong expertise in Python and Amazon Web Services (AWS). This role is ideal for candidates who are passionate about both application development and cloud infrastructure, and who enjoys building scalable, secure, and high-performance systems. You will play a key role in designing, developing, deploying, and maintaining cloud-native applications and infrastructure. Additionally, you will collaborate with the Network Operations Team to support and enhance network automation initiatives. This includes developing tools and scripts to automate network provisioning, configuration, and monitoring, helping to drive efficiency, consistency, and reliability across our hybrid cloud environment. Software Engineering (Python) * Design and develop backend services, APIs, and automation tools using Python (Fl
Any company can tell you about how they are a multi award winning, market leading business and yes, we are both of those things in the world of IoT connectivity! But were more than that. Our mission? To make IoT management a breeze for any device, anywhere. With over 10 million IoT subscriptions active in 165 countries and direct partnerships with 50 mobile networks, we connect you to more than 750 networks worldwide, delivering unmatched value across the IoT connectivity chain. Innovation is in our DNA, and we have an insatiable hunger to wow! While we may not always get it right, our drive to collaborate, innovate, and achieve top-notch customer satisfaction never wavers. We offer industry expertise, stellar service support, and the most flexible, resilient, and secure connectivity solutions on the market.
Any company can tell you about how they are a multi award winning, market leading business and yes, we are both of those things in the world of IoT connectivity! But were more than that. Our mission? To make IoT management a breeze for any device, anywhere. With over 10 million IoT subscriptions active in 165 countries and direct partnerships with 50 mobile networks, we connect you to more than 750 networks worldwide, delivering unmatched value across the IoT connectivity chain. Innovation is in our DNA, and we have an insatiable hunger to wow! While we may not always get it right, our drive to collaborate, innovate, and achieve top-notch customer satisfaction never wavers. We offer industry expertise, stellar service support, and the most flexible, resilient, and secure connectivity solutions on the market.
Any company can tell you about how they are a multi award winning, market leading business and yes, we are both of those things in the world of IoT connectivity! But we're more than that. Our mission? To make IoT management a breeze for any device, anywhere. With over 14 million IoT subscriptions active in 165 countries and direct partnerships with 50 mobile networks , we connect you to more than 750 networks worldwide, delivering unmatched value across the IoT connectivity chain. Innovation is in our DNA , and we have an insatiable hunger to 'wow'! While we may not always get it right, our drive to collaborate, innovate, and achieve top-notch customer satisfaction never wavers. We offer industry expertise, stellar service support, and the most flexible, resilient, and secure connectivity solutions on the market.
Any company can tell you about how they are a multi award winning, market leading business and yes, we are both of those things in the world of IoT connectivity! But we're more than that. Our mission? To make IoT management a breeze for any device, anywhere. With over 14 million IoT subscriptions active in 165 countries and direct partnerships with 50 mobile networks , we connect you to more than 750 networks worldwide, delivering unmatched value across the IoT connectivity chain. Innovation is in our DNA , and we have an insatiable hunger to 'wow'! While we may not always get it right, our drive to collaborate, innovate, and achieve top-notch customer satisfaction never wavers. We offer industry expertise, stellar service support, and the most flexible, resilient, and secure connectivity solutions on the market.
Azure API Management (APIM)
Azure API Management (APIM)
Strong API development and database experience (Postgres/Oracle + SQL).
Strong API development and database experience (Postgres/Oracle + SQL).
367 exact matches jobs are outside your preferred location
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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.
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
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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
Analyse technical capabilities, integrations, and API readiness.
Analyse technical capabilities, integrations, and API readiness.
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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