Date posted
Commute time
Locations
Type of Company
Job types
Salaries
Locations
Locations
Salaries
Date posted
Type of Company
Job types
12 Contract API jobs in Northampton + 20 miles
)
Understanding of data transfer / API's and Cloud based applications
Understanding of data transfer / API's and Cloud based applications
PREMIUM
)
Technical Knowledge: Familiarity with API integration, data mapping, and middleware solutions.
Technical Knowledge: Familiarity with API integration, data mapping, and middleware solutions.
)
Lead .Net Software Developer
Lead .Net Software Developer
Hireful
Milton Keynes, Buckinghamshire, MK9
£65k - £75k base salary + bonus and great benefits
Are you a hands-on Lead or Senior .Net Developer ready to shape architecture and guide talented developers? Want a hybrid role with 3 days WFH? This is your chance to stay close to the code while making key technical decisions that drive real business impact. You'll join a collaborative, forward-thinking team building cutting-edge products — with the support, tools, and flexibility to thrive. Role: Lead Software Developer, Senior .Net Developer, Software Engineering Manager, Senior Full Stack Developer, Lead .Net Developer, Lead Software Engineer, Senior C# Developer - Salary: £65k - £75k base + Bonus - Benefits: 5% pension, 25 days holiday, 2 wellbeing days, Christmas shutdown, private healthcare, life assurance, cinema tickets & more - Location: Milton Keynes – Hybrid (2 days a week in office) If you’ve got strong .Net (C#) experience and skills in GitHub, APIs, Pos
Are you a hands-on Lead or Senior .Net Developer ready to shape architecture and guide talented developers? Want a hybrid role with 3 days WFH? This is your chance to stay close to the code while making key technical decisions that drive real business impact. You'll join a collaborative, forward-thinking team building cutting-edge products — with the support, tools, and flexibility to thrive. Role: Lead Software Developer, Senior .Net Developer, Software Engineering Manager, Senior Full Stack Developer, Lead .Net Developer, Lead Software Engineer, Senior C# Developer - Salary: £65k - £75k base + Bonus - Benefits: 5% pension, 25 days holiday, 2 wellbeing days, Christmas shutdown, private healthcare, life assurance, cinema tickets & more - Location: Milton Keynes – Hybrid (2 days a week in office) If you’ve got strong .Net (C#) experience and skills in GitHub, APIs, Pos
FEATURED
)
Our client, a growing consultancy delivering cutting-edge AI and data-led services to government and public sector clients, is looking for a Senior Software Engineer to join their forward-thinking team in Milton Keynes. This is a fantastic opportunity to contribute to a nationally recognised AI innovation platform used to drive sensitive data discovery, redaction, and secure archiving for government departments. You'll work across a modern tech stack and play a key role in the development, deployment, and support of a secure full stack system used across the UK public sector. * Design, build, and test full stack software in a secure, client-focused environment * Work with modern front-end technologies (React, TypeScript, HTML/CSS) to deliver intuitive UI/UX * Develop robust back-end services using Java and Spring Boot
Our client, a growing consultancy delivering cutting-edge AI and data-led services to government and public sector clients, is looking for a Senior Software Engineer to join their forward-thinking team in Milton Keynes. This is a fantastic opportunity to contribute to a nationally recognised AI innovation platform used to drive sensitive data discovery, redaction, and secure archiving for government departments. You'll work across a modern tech stack and play a key role in the development, deployment, and support of a secure full stack system used across the UK public sector. * Design, build, and test full stack software in a secure, client-focused environment * Work with modern front-end technologies (React, TypeScript, HTML/CSS) to deliver intuitive UI/UX * Develop robust back-end services using Java and Spring Boot
Our client, a growing consultancy delivering cutting-edge AI and data-led services to government and public sector clients, is looking for a Full Stack Software Engineer to join their forward-thinking team in Milton Keynes. This is a fantastic opportunity to contribute to a nationally recognised AI innovation platform used to drive sensitive data discovery, redaction, and secure archiving for government departments. You'll work across a modern tech stack and play a key role in the development, deployment, and support of a secure full stack system used across the UK public sector. * Design, build, and test full stack software in a secure, client-focused environment * Work with modern front-end technologies (React, TypeScript, HTML/CSS) to deliver intuitive UI/UX * Develop robust back-end services using Java and Spring Boot
Our client, a growing consultancy delivering cutting-edge AI and data-led services to government and public sector clients, is looking for a Full Stack Software Engineer to join their forward-thinking team in Milton Keynes. This is a fantastic opportunity to contribute to a nationally recognised AI innovation platform used to drive sensitive data discovery, redaction, and secure archiving for government departments. You'll work across a modern tech stack and play a key role in the development, deployment, and support of a secure full stack system used across the UK public sector. * Design, build, and test full stack software in a secure, client-focused environment * Work with modern front-end technologies (React, TypeScript, HTML/CSS) to deliver intuitive UI/UX * Develop robust back-end services using Java and Spring Boot
)
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
)
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
)
Upwork Job Brief Mobile App Developer (React Native or Flutter) Project Overview - We are looking for an experienced mobile app developer to build a new application from the ground up. The project involves end-to-end development, including frontend, backend, real-time features, and a clean, intuitive user experience. You should be comfortable taking a concept and turning it into a fully functional, production-ready app. Responsibilities * Build a cross-platform mobile app usingReact NativeorFlutter. * Develop backend services usingFirebase / Supabase / Node.js / AWS / GCP. * ImplementRESTful APIs, real-time messaging, and push notifications. * Integrate payment solutions such asStripe, Apple Pay, or Google Pay. * Collaborate on UI/UX flows to ensure a smooth, modern user experience. * Ensure robust data protection, authentication, andUK GDPRcompliance. Required Skills
Upwork Job Brief Mobile App Developer (React Native or Flutter) Project Overview - We are looking for an experienced mobile app developer to build a new application from the ground up. The project involves end-to-end development, including frontend, backend, real-time features, and a clean, intuitive user experience. You should be comfortable taking a concept and turning it into a fully functional, production-ready app. Responsibilities * Build a cross-platform mobile app usingReact NativeorFlutter. * Develop backend services usingFirebase / Supabase / Node.js / AWS / GCP. * ImplementRESTful APIs, real-time messaging, and push notifications. * Integrate payment solutions such asStripe, Apple Pay, or Google Pay. * Collaborate on UI/UX flows to ensure a smooth, modern user experience. * Ensure robust data protection, authentication, andUK GDPRcompliance. Required Skills
£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
)
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
Data Automation: Develop automated data feeds (API/EDI) and use BigQuery to enhance data accuracy and streamline reporting.
Data Automation: Develop automated data feeds (API/EDI) and use BigQuery to enhance data accuracy and streamline reporting.
As a Senior BizOps Infrastructure Engineer you'll be a key player in managing our global, multi-site IT infrastructure, ensuring its smooth operation, and driving continuous improvement. You'll collaborate with 2 mid-level infrastructure engineers, a global Service Desk and Support team of 17, and a 20-member Information Security team. Your work will span a diverse technology stack, from end-user devices to cloud environments, with a focus on automation, security, and scalability. This is an exciting opportunity for a dynamic individual who thrives on meticulously designing IT architectural controls and standards, loves solving complex problems in a fast-paced environment, is passionate about cutting-edge technologies, and enjoys mentoring junior colleagues. * lead and deliver large-scale technical projects across end-user device fleets (Windows/macOS), networks, and
As a Senior BizOps Infrastructure Engineer you'll be a key player in managing our global, multi-site IT infrastructure, ensuring its smooth operation, and driving continuous improvement. You'll collaborate with 2 mid-level infrastructure engineers, a global Service Desk and Support team of 17, and a 20-member Information Security team. Your work will span a diverse technology stack, from end-user devices to cloud environments, with a focus on automation, security, and scalability. This is an exciting opportunity for a dynamic individual who thrives on meticulously designing IT architectural controls and standards, loves solving complex problems in a fast-paced environment, is passionate about cutting-edge technologies, and enjoys mentoring junior colleagues. * lead and deliver large-scale technical projects across end-user device fleets (Windows/macOS), networks, and
409 exact matches jobs are outside your preferred location
)
Senior API Technical Consultant (GraphQL Specialist)
Senior API Technical Consultant (GraphQL Specialist)
Staffworx Limited
Slough (SL1)
market rates, outside IR35, 2 days on site
Lead the designand evolution of our API schemas, ensuring they meet the complex demands of a rapidly growing platform. * Expert levelGraphQL, including advanced API design, schema evolution, performance optimisation.
Lead the designand evolution of our API schemas, ensuring they meet the complex demands of a rapidly growing platform. * Expert levelGraphQL, including advanced API design, schema evolution, performance optimisation.
)
Lead Technical Architect
Lead Technical Architect
DWP Digital
Lee Bank, Birmingham (B1), B1 1HH
£75026 - £99836 per annum + plus 28.97% employer pension contributions
API Management - Experience designing and implementing APIs (REST / JSON, SOAP / XML, GraphQL), including API lifecycle management, API gateways, HTTP transport and security such as mTLS, OIDC (integration specialism)
API Management - Experience designing and implementing APIs (REST / JSON, SOAP / XML, GraphQL), including API lifecycle management, API gateways, HTTP transport and security such as mTLS, OIDC (integration specialism)
PREMIUM
)
Solid understanding of REST API development, integrations, and modern application architecture.
Solid understanding of REST API development, integrations, and modern application architecture.
)
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
)
Senior .Net Integration Developer
Senior .Net Integration Developer
Rise Technical
Maidenhead, Berkshire
£50000.00 - £70000.00 per annum + + Training + Holiday
You will use your expertise in C#/.NET and modern APIs (REST, WebAPI, JSON, OAuth2) to build fault-tolerant, event-driven integrations, support customers and partners with API usage, and deliver clear, high-quality documentation while maintaining security, GDPR compliance, and operational reliability. Taking integration leadership, you will design and maintain well-documented financial and third-party integrations built on modern API standards. * Support customers and partners with integration setup and API usage
You will use your expertise in C#/.NET and modern APIs (REST, WebAPI, JSON, OAuth2) to build fault-tolerant, event-driven integrations, support customers and partners with API usage, and deliver clear, high-quality documentation while maintaining security, GDPR compliance, and operational reliability. Taking integration leadership, you will design and maintain well-documented financial and third-party integrations built on modern API standards. * Support customers and partners with integration setup and API usage
)
Technical Delivery Lead – Oracle Fusion & Enterprise Solutions
Technical Delivery Lead – Oracle Fusion & Enterprise Solutions
EFCI Group Ltd
Oxford (OX4)
From £80,000 to £90,000 per annum + £6500 travel allowance + 10% bonus
Oversee integration design and implementation, enforcing best practices across platforms like Oracle Integration Cloud (OIC) and API Gateways. * Expertise in integration technologies such as OIC, API Gateway, MuleSoft, or comparable integration services.
Oversee integration design and implementation, enforcing best practices across platforms like Oracle Integration Cloud (OIC) and API Gateways. * Expertise in integration technologies such as OIC, API Gateway, MuleSoft, or comparable integration services.
Analyse technical capabilities, integrations, and API readiness.
Analyse technical capabilities, integrations, and API readiness.
)
Significant expertise in API integration, containerisation, microservices and cloud platforms (AWS, O365, GCP)
Significant expertise in API integration, containerisation, microservices and cloud platforms (AWS, O365, GCP)
)
Expertise on Oracle Simphony, API knowledge, Knowledge of Product Limitations
Expertise on Oracle Simphony, API knowledge, Knowledge of Product Limitations
)
Translate complex business requirements into detailed technical specifications, architectural designs, and API contracts. o Create and maintain comprehensive technical documentation, including code documentation, system designs, and API specifications. o 5+ years of experience in software development, with significant experience in cloud-based application development and API design. o Familiarity with cloud services relevant to application development (e.g., Azure Webapps, Azure Functions, Azure API Management, Azure Cosmos DB, Azure Databricks, Azure ML services for model consumption).
Translate complex business requirements into detailed technical specifications, architectural designs, and API contracts. o Create and maintain comprehensive technical documentation, including code documentation, system designs, and API specifications. o 5+ years of experience in software development, with significant experience in cloud-based application development and API design. o Familiarity with cloud services relevant to application development (e.g., Azure Webapps, Azure Functions, Azure API Management, Azure Cosmos DB, Azure Databricks, Azure ML services for model consumption).
)
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
)
Operating in a rapidly evolving logistics sector, they will leverage cutting-edge Azure PaaS technologies (App Services, Functions, API Management, etc.) to drive efficiency, reliability, and innovation across high-impact national projects. * Experience with microservices architecture and API Management.
Operating in a rapidly evolving logistics sector, they will leverage cutting-edge Azure PaaS technologies (App Services, Functions, API Management, etc.) to drive efficiency, reliability, and innovation across high-impact national projects. * Experience with microservices architecture and API Management.
)
Strong Python & C# skills; API and cloud architecture experience (Azure a plus).
Strong Python & C# skills; API and cloud architecture experience (Azure a plus).
FEATURED