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        26 API jobs in Bicester + 20 miles

        .NET Developer

        Halian Technology Limited
        Wallingford (OX10)
        From £450 to £550 per day
        ASP.NET Web API * API-driven backend development
        ASP.NET Web API * API-driven backend development

        AI Software Engineer, Firebase, GCP, COR7557

        Corriculo Ltd
        Oxford, Oxfordshire, OX4
        £75k - 100k per year + Stock Options
        Building on Firebase, using Claude API and leading LLMs, the AI Software Engineer will build the end-to-end architecture, security, performance and integration.
        Building on Firebase, using Claude API and leading LLMs, the AI Software Engineer will build the end-to-end architecture, security, performance and integration.
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        ServiceNow Developer- SC Security Clearance

        Morson Edge
        Fenny Lock, Milton Keynes (MK1), MK1 1AS
        £500 - 600 per day
        • Strong knowledge of JavaScript, ServiceNow scripting, and ServiceNow API usage.
        • Strong knowledge of JavaScript, ServiceNow scripting, and ServiceNow API usage.
        PREMIUM

        Senior Integration Engineer

        ifndautoparts
        Silverstone, Towcester (NN12), NN12 8GX
        Unspecified
        This role combines software engineering, systems architecture, API development, data mapping, automation, and technical problem-solving. The goal is to identify the most effective onboarding approach for each seller, whether that involves API connectivity, bulk uploads, existing integrations, middleware solutions, or building reusable integrations where there is long-term value. Seller API Supporting businesses and developers who wish to integrate directly with the ifndautoparts Seller API. This may include existing integrations, custom-built integrations, data feeds, middleware solutions, or direct API connectivity depending on the seller's requirements. * Utilise and extend the ifndautoparts Seller API to support business seller onboarding and inventory synchronisation. * Assist external developers and technical contacts in integrating with the ifndautoparts API.
        This role combines software engineering, systems architecture, API development, data mapping, automation, and technical problem-solving. The goal is to identify the most effective onboarding approach for each seller, whether that involves API connectivity, bulk uploads, existing integrations, middleware solutions, or building reusable integrations where there is long-term value. Seller API Supporting businesses and developers who wish to integrate directly with the ifndautoparts Seller API. This may include existing integrations, custom-built integrations, data feeds, middleware solutions, or direct API connectivity depending on the seller's requirements. * Utilise and extend the ifndautoparts Seller API to support business seller onboarding and inventory synchronisation. * Assist external developers and technical contacts in integrating with the ifndautoparts API.
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        Full Stack .NET Web Developer

        Association For Project Management
        Saunderton Lee, Princes Risborough (HP27), HP27 9LE
        From £50,000 to £55,000 per annum
        Salary: £50,000- £55,000 per annum (depending on experience) 12-month Fixed Term Contract (Full time - 35 hours per week) Hybrid Working Home Based/Princes Risborough - Were Association for Project Management (APM). Were a professional membership organisation that sets the standards for the project profession. As a registered charity, we reinvest our surplus for the benefit of our members and the profession. We deliver education and develop qualifications. We conduct research and provide knowledge and resources. We run events and share best practice. We give people the opportunity to connect and provide community for our individual members and corporate partners, wherever they are. Above all, when doing so makes a difference, we challenge the status quo - Job Role Overview - An exciting opportunity has arisen for a Full Stack .NET Web Developer to join our Digital team on a fixed term ...
        Salary: £50,000- £55,000 per annum (depending on experience) 12-month Fixed Term Contract (Full time - 35 hours per week) Hybrid Working Home Based/Princes Risborough - Were Association for Project Management (APM). Were a professional membership organisation that sets the standards for the project profession. As a registered charity, we reinvest our surplus for the benefit of our members and the profession. We deliver education and develop qualifications. We conduct research and provide knowledge and resources. We run events and share best practice. We give people the opportunity to connect and provide community for our individual members and corporate partners, wherever they are. Above all, when doing so makes a difference, we challenge the status quo - Job Role Overview - An exciting opportunity has arisen for a Full Stack .NET Web Developer to join our Digital team on a fixed term ...
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        Platform Product Owner

        Network IT
        Milton Keynes, Buckinghamshire
        £47000 - £56500 per annum
        Role: Senior Platform Product Manager - Location: Milton Keynes (Hybrid 2 Days a Month On-Site) Salary: £47,000 £56,500 - Network IT are working with a highly respected organisation to recruit a Senior Platform Product Manager to join their Digital Services function. This is a fantastic opportunity to lead the development and optimisation of internal platform products, shaping services that enable teams and stakeholders across the organisation. You will play a key role in delivering data-driven, internally focused platform capabilities, working across the full product lifecycle and operating within a modern, collaborative product environment. Role Overview - As a Senior Platform Product Manager, you will take ownership of complex internal platform products, ensuring they deliver value across multiple teams and stakeholders.
        Role: Senior Platform Product Manager - Location: Milton Keynes (Hybrid 2 Days a Month On-Site) Salary: £47,000 £56,500 - Network IT are working with a highly respected organisation to recruit a Senior Platform Product Manager to join their Digital Services function. This is a fantastic opportunity to lead the development and optimisation of internal platform products, shaping services that enable teams and stakeholders across the organisation. You will play a key role in delivering data-driven, internally focused platform capabilities, working across the full product lifecycle and operating within a modern, collaborative product environment. Role Overview - As a Senior Platform Product Manager, you will take ownership of complex internal platform products, ensuring they deliver value across multiple teams and stakeholders.
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        NEWFEATURED

        Lead Software Engineer Python Full Stack

        Client Server
        Lower Heyford, Bicester (OX25), OX25
        £65000 - £80000 per annum + equity + benefits
        Lead Software Engineer / Developer (Python Full Stack) Oxford / WFH to £80k - Opportunity to take ownership of the technology strategy, architecture and software platforms that power a growing motorsport and technology business. As the Lead Software Engineer you will shape the future of the engineering function, influence key business decisions and build a high performing team around you whilst remaining hands-on with technology and product delivery. Collaborating with senior leadership, you will define the technical roadmap, make key architectural decisions and drive the adoption of modern engineering practices across the organisation. You'll have significant autonomy to evolve the technology stack, introduce new tools and approaches and build scalable platforms that support real time operations, telemetry, analytics, reporting and AI-enabled workflows used by engineers, ...
        Lead Software Engineer / Developer (Python Full Stack) Oxford / WFH to £80k - Opportunity to take ownership of the technology strategy, architecture and software platforms that power a growing motorsport and technology business. As the Lead Software Engineer you will shape the future of the engineering function, influence key business decisions and build a high performing team around you whilst remaining hands-on with technology and product delivery. Collaborating with senior leadership, you will define the technical roadmap, make key architectural decisions and drive the adoption of modern engineering practices across the organisation. You'll have significant autonomy to evolve the technology stack, introduce new tools and approaches and build scalable platforms that support real time operations, telemetry, analytics, reporting and AI-enabled workflows used by engineers, ...
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        PREMIUM
        We are looking for the right people people who want to innovate, achieve, grow and lead. We attract and retain the best talent by investing in our employees and empowering them to develop themselves and their careers. Experience the challenges, rewards and opportunity of working for one of the world's largest providers of products and services to the global energy industry. Job Duties - We are seeking a skilled Java developer with 3+ years experience for our Neftex Technical Services Team. Reporting to the Team Lead, you will contribute to the design, development, and maintenance of subsurface evaluation solutions across the energy sector. Successful candidates will be evidently enthusiastic and motivated people who we can train up in our processes and ultimately play a key role in quality assurance initiatives across different stakeholder groups. Minimum Qualifications
        We are looking for the right people people who want to innovate, achieve, grow and lead. We attract and retain the best talent by investing in our employees and empowering them to develop themselves and their careers. Experience the challenges, rewards and opportunity of working for one of the world's largest providers of products and services to the global energy industry. Job Duties - We are seeking a skilled Java developer with 3+ years experience for our Neftex Technical Services Team. Reporting to the Team Lead, you will contribute to the design, development, and maintenance of subsurface evaluation solutions across the energy sector. Successful candidates will be evidently enthusiastic and motivated people who we can train up in our processes and ultimately play a key role in quality assurance initiatives across different stakeholder groups. Minimum Qualifications
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        We are looking for the right people people who want to innovate, achieve, grow and lead. We attract and retain the best talent by investing in our employees and empowering them to develop themselves and their careers. Experience the challenges, rewards and opportunity of working for one of the worlds largest providers of products and services to the global energy industry. Job Duties - We are seeking a skilled and proactive Data Integration Engineer to join the Neftex Technical Services team. Reporting to the Team Lead the Data Integration Engineer will be responsible for designing, building, and maintaining robust data pipelines and integration frameworks that connect diverse systems including LLMs and a proprietary Data Integration solution. Successful candidates will be evidently enthusiastic and motivated people who we can train up in our processes and ultimately play a ...
        We are looking for the right people people who want to innovate, achieve, grow and lead. We attract and retain the best talent by investing in our employees and empowering them to develop themselves and their careers. Experience the challenges, rewards and opportunity of working for one of the worlds largest providers of products and services to the global energy industry. Job Duties - We are seeking a skilled and proactive Data Integration Engineer to join the Neftex Technical Services team. Reporting to the Team Lead the Data Integration Engineer will be responsible for designing, building, and maintaining robust data pipelines and integration frameworks that connect diverse systems including LLMs and a proprietary Data Integration solution. Successful candidates will be evidently enthusiastic and motivated people who we can train up in our processes and ultimately play a ...
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        Head of IT (UK, Belgium & Netherlands)

        Hays
        Milton Keynes (MK1)
        Up to £100000.0 per annum + £100k (DoE) + Package
        The Company - Our client is a leading organisation in the commercial vehicle industry with a global presence, who are seeking a Head of IT (UK, Belgium & Netherlands) to be based form their site in Milton Keynes. The Role - The Head of IT is a senior leadership role accountable for shaping and delivering the IT strategy, services, and transformation agenda across the UK, Belgium, and the Netherlands. The position ensures the delivery of high-quality, customer-centric IT solutions that directly support business objectives. Leading a team of 10 and managing a substantial budget, the role oversees key areas including business relationship management, project and change delivery, application management, IT operations, vendor partnerships, and risk and compliance. A critical focus of the role is driving standardisation and harmonisation across the regional IT landscape.
        The Company - Our client is a leading organisation in the commercial vehicle industry with a global presence, who are seeking a Head of IT (UK, Belgium & Netherlands) to be based form their site in Milton Keynes. The Role - The Head of IT is a senior leadership role accountable for shaping and delivering the IT strategy, services, and transformation agenda across the UK, Belgium, and the Netherlands. The position ensures the delivery of high-quality, customer-centric IT solutions that directly support business objectives. Leading a team of 10 and managing a substantial budget, the role oversees key areas including business relationship management, project and change delivery, application management, IT operations, vendor partnerships, and risk and compliance. A critical focus of the role is driving standardisation and harmonisation across the regional IT landscape.
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        Full Stack Developer

        Hays
        Milton Keynes (MK1)
        £350.0 - £400.0 per day + £350 - £400 per day
        Your new role - We are looking for an experienced Full Stack C# Web Developer with strong React expertise to support the development and enhancement of a web-based compliance portal for a key programme. Responsibilities * Design, develop, and maintain a secure, scalable compliance web portal * Build and enhance back-end services using C# and .NET / .NET Core * Develop modern, responsive front-end applications using React * Integrate front-end components with RESTful APIs * Work closely with product owners, business analysts, and QA engineers * Ensure high standards of security, performance, and maintainability * Contribute to code reviews, documentation, and technical standards - What you'll need to succeed * Proven experience as a Full Stack Developer * Strong C# and .NET / .NET Core development background * Commercial experience building applications with React
        Your new role - We are looking for an experienced Full Stack C# Web Developer with strong React expertise to support the development and enhancement of a web-based compliance portal for a key programme. Responsibilities * Design, develop, and maintain a secure, scalable compliance web portal * Build and enhance back-end services using C# and .NET / .NET Core * Develop modern, responsive front-end applications using React * Integrate front-end components with RESTful APIs * Work closely with product owners, business analysts, and QA engineers * Ensure high standards of security, performance, and maintainability * Contribute to code reviews, documentation, and technical standards - What you'll need to succeed * Proven experience as a Full Stack Developer * Strong C# and .NET / .NET Core development background * Commercial experience building applications with React
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        Technical Product Lead

        Oxford Nanopore Technologies
        Oxford, Oxfordshire
        Competitive
        Oxford Nanopore has developed a new generation of nanopore-based sensing technology for faster, information-rich, accessible and affordable molecular analysis. The technology is used to understand and characterise the biology of humans, animals, plants, bacteria, viruses, and diseases such as cancer. By enabling biological insights, we strive to improve life on Earth and beyond. The Role - We are seeking a Technical Product Lead to take ownership of our Manufacturing Execution System (MES), supporting the manufacture of our sequencing products. This role will be responsible for the technical integration, operational effectiveness, compliance, and technical coherence of our newly commissioned MES SaaS platform, NoMuda VisualFactory. Reporting to the Manufacturing Platform Owner, you will work closely with our in house development teams responsible for bespoke systems ...
        Oxford Nanopore has developed a new generation of nanopore-based sensing technology for faster, information-rich, accessible and affordable molecular analysis. The technology is used to understand and characterise the biology of humans, animals, plants, bacteria, viruses, and diseases such as cancer. By enabling biological insights, we strive to improve life on Earth and beyond. The Role - We are seeking a Technical Product Lead to take ownership of our Manufacturing Execution System (MES), supporting the manufacture of our sequencing products. This role will be responsible for the technical integration, operational effectiveness, compliance, and technical coherence of our newly commissioned MES SaaS platform, NoMuda VisualFactory. Reporting to the Manufacturing Platform Owner, you will work closely with our in house development teams responsible for bespoke systems ...
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        .NET Developer (C#, .NET Core)

        360 Resourcing
        Moreton, Thame (OX9), OX9 2AH
        £45000.00 to £48000.00 per year Only 1/2 days a month in the office
        We’re building out our in-house development capability — and we’re looking for a .NET Developer (C#, .NET Core) to join the team. You’ll play a key role in delivering business-critical applications, working on a new analytics-enabled web platform before contributing across a growing portfolio of internal systems used by our field and head office teams. * Build, enhance, and support .NET-based applications and services * Develop APIs, integrations, and operational applications using C# / ASP.NET Core * Work with SQL data stores to deliver reliable, performant solutions * Collaborate with product, data, and infrastructure teams to deliver new features * Contribute to clean, maintainable code and support production-ready releases - What we’re looking for with our new .NET Developer (C#, .NET Core) * Commercial experience with C# / .NET development
        We’re building out our in-house development capability — and we’re looking for a .NET Developer (C#, .NET Core) to join the team. You’ll play a key role in delivering business-critical applications, working on a new analytics-enabled web platform before contributing across a growing portfolio of internal systems used by our field and head office teams. * Build, enhance, and support .NET-based applications and services * Develop APIs, integrations, and operational applications using C# / ASP.NET Core * Work with SQL data stores to deliver reliable, performant solutions * Collaborate with product, data, and infrastructure teams to deliver new features * Contribute to clean, maintainable code and support production-ready releases - What we’re looking for with our new .NET Developer (C#, .NET Core) * Commercial experience with C# / .NET development
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        FEATURED

        Principal Support Engineer

        INGRAM MICRO UK LTD
        Milton Keynes, Buckinghamshire
        Competitive
        This role blends deep technical troubleshooting, advanced log and API analysis, Datadog monitoring expertise, and leadership of high-severity escalations. * Perform hands-on technical troubleshooting using Datadog (logs, traces, dashboards), API tools (Postman/cURL), and distributed log tracing. * Strong REST API troubleshooting using Postman, cURL, authentication flows, and JSON payload analysis.
        This role blends deep technical troubleshooting, advanced log and API analysis, Datadog monitoring expertise, and leadership of high-severity escalations. * Perform hands-on technical troubleshooting using Datadog (logs, traces, dashboards), API tools (Postman/cURL), and distributed log tracing. * Strong REST API troubleshooting using Postman, cURL, authentication flows, and JSON payload analysis.
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        Working closely with the engineering and integration support teams along with communicating externally with Dexory's customers, you will develop custom parsers, API integrations, and data transformation logic to enable our robots to understand each customer's unique warehouse management system. * Building custom API integrations to retrieve real-time data from customer warehouse management systems;
        Working closely with the engineering and integration support teams along with communicating externally with Dexory's customers, you will develop custom parsers, API integrations, and data transformation logic to enable our robots to understand each customer's unique warehouse management system. * Building custom API integrations to retrieve real-time data from customer warehouse management systems;
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        Developer

        Pluxee UK
        Milton Keynes, Buckinghamshire
        Competitive
        Essential technical skills: C#, .NET 4.8, MVC, MS SQL Server, Entity Framework, T-SQL Jobs, Stored Procedures, HTML, JavaScript, Bootstrap, Web API, REST, SOAP, WCF API, Postman, Azure, DevOps, Agile - Desirable technical skills: .NET 10, Microservices, Blazor, MAUI, Cosmos DBs, Containers, App Services, ServiceBus/Queues, Azure API Management, CI/CD Pipelines
        Essential technical skills: C#, .NET 4.8, MVC, MS SQL Server, Entity Framework, T-SQL Jobs, Stored Procedures, HTML, JavaScript, Bootstrap, Web API, REST, SOAP, WCF API, Postman, Azure, DevOps, Agile - Desirable technical skills: .NET 10, Microservices, Blazor, MAUI, Cosmos DBs, Containers, App Services, ServiceBus/Queues, Azure API Management, CI/CD Pipelines
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        Delivering back-end development including API design and working with multiple database paradigms. * Solid knowledge of web and cloud technologies, security, communications, and API based architectures, ideally within IoT or scientific systems.
        Delivering back-end development including API design and working with multiple database paradigms. * Solid knowledge of web and cloud technologies, security, communications, and API based architectures, ideally within IoT or scientific systems.
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        Jira Platform Engineer

        Strongbyte Solutions Ltd t/a VoCoVo
        Shipton-Under-Wychwood, Chipping Norton (OX7)
        £72,000 a year
        VoCoVo specialises in innovative communication solutions tailored for businesses, particularly within the retail sector. Our flagship products are designed to create a connected store experience, facilitating seamless communication among retail staff to enhance efficiency and elevate customer service. We empower teams to collaborate effortlessly and achieve their retail goals. Youve probably already seen us in action, were trusted by Tesco, Asda, Dunelm and Iceland, just to name a few. With over 250,000 users across more than 10,000 locations in 21+ countries, and recognition as one of the top 100 best small-to-medium size businesses to work for, join us on our journey! Role Overview - As Jira Platform Engineer you will build, implement and take ownership of our enterprise-wide Jira platform. This role is largely hands-on, you will work with an agreed architectural design in ...
        VoCoVo specialises in innovative communication solutions tailored for businesses, particularly within the retail sector. Our flagship products are designed to create a connected store experience, facilitating seamless communication among retail staff to enhance efficiency and elevate customer service. We empower teams to collaborate effortlessly and achieve their retail goals. Youve probably already seen us in action, were trusted by Tesco, Asda, Dunelm and Iceland, just to name a few. With over 250,000 users across more than 10,000 locations in 21+ countries, and recognition as one of the top 100 best small-to-medium size businesses to work for, join us on our journey! Role Overview - As Jira Platform Engineer you will build, implement and take ownership of our enterprise-wide Jira platform. This role is largely hands-on, you will work with an agreed architectural design in ...
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        Permanent Regular - Pluxee is a global player in employee benefits and engagement that operates in 29 countries. Pluxee helps companies attract, engage, and retain talent thanks to a broad range of solutions across Meal & Food, Wellbeing, Lifestyle, Reward & Recognition, and Public Benefits. Powered by leading technology and more than 5,000 engaged team members, Pluxee acts as a trusted partner within a highly interconnected B2B2C ecosystem made up of more than 500,000 clients, 36 million consumers and 1.7 million merchants. Conducting its business as a trusted partner for more than 45 years, Pluxee is committed to creating a positive impact on all its stakeholders, from driving business to local communities, to supporting wellbeing at work for employees while protecting the planet. The role * Design, develop, and maintain software * Write clean, scalable, and efficient code
        Permanent Regular - Pluxee is a global player in employee benefits and engagement that operates in 29 countries. Pluxee helps companies attract, engage, and retain talent thanks to a broad range of solutions across Meal & Food, Wellbeing, Lifestyle, Reward & Recognition, and Public Benefits. Powered by leading technology and more than 5,000 engaged team members, Pluxee acts as a trusted partner within a highly interconnected B2B2C ecosystem made up of more than 500,000 clients, 36 million consumers and 1.7 million merchants. Conducting its business as a trusted partner for more than 45 years, Pluxee is committed to creating a positive impact on all its stakeholders, from driving business to local communities, to supporting wellbeing at work for employees while protecting the planet. The role * Design, develop, and maintain software * Write clean, scalable, and efficient code
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        Frequently Asked Questions

        How many API jobs are there in Bicester?
        There are 26 API jobs within 20 miles of Bicester available on CWJobs right now.

        What other similar jobs are there to API jobs in Bicester?
        As well as API jobs in Bicester, you can find IT, Software Development, Architecture, amongst many others.