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28 Contract API jobs in South Yorkshire + 20 miles
83 exact matches jobs are outside your preferred location
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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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Espire Infolabs is hiring forJDA Dispatcher Developer for UK with 100% remote working - Job Title:JDA Dispatcher Developer - Job Type: Permanent - Job Location: 100% Remote - Job Description, Develop & maintain custom enhancements, interfaces, and extensions within the JDA Dispatcher WMS environment. Design & implement system configurations, rules changes and new functionalities to meet evolving business needs. Participating in the implementation of new JDA Dispatcher systems, including configuring the system based on business requirements and conducting user training. Working on integrating the JDA Dispatcher WMS with other systems like ERP, TMS, and material handling equipment (MHE). Analysing and troubleshooting technical problems related to the JDA Dispatcher WMS, including performance issues, integration problems, and user-related operational issues.
Espire Infolabs is hiring forJDA Dispatcher Developer for UK with 100% remote working - Job Title:JDA Dispatcher Developer - Job Type: Permanent - Job Location: 100% Remote - Job Description, Develop & maintain custom enhancements, interfaces, and extensions within the JDA Dispatcher WMS environment. Design & implement system configurations, rules changes and new functionalities to meet evolving business needs. Participating in the implementation of new JDA Dispatcher systems, including configuring the system based on business requirements and conducting user training. Working on integrating the JDA Dispatcher WMS with other systems like ERP, TMS, and material handling equipment (MHE). Analysing and troubleshooting technical problems related to the JDA Dispatcher WMS, including performance issues, integration problems, and user-related operational issues.
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Job Title: Full Stack Developer - Location: London, UK (Hybrid Work Mode) Job Type: Permanent - We are seeking a Full Stack Developer with strong experience in web application development, particularly focusing on the integration of Generative AI and Agentic Application models. You will play a key role in building and enhancing innovative solutions that leverage both advanced front-end and back-end technologies in a cloud environment. * Develop robust web applications integrating Generative AI and Agentic Application models. * Design and build scalable, responsive front-end interfaces. * Create and maintain efficient back-end systems and APIs. * Integrate AI frameworks into applications and support deployment in cloud environments. * Collaborate with DevOps teams to implement CI/CD pipelines and manage infrastructure.
Job Title: Full Stack Developer - Location: London, UK (Hybrid Work Mode) Job Type: Permanent - We are seeking a Full Stack Developer with strong experience in web application development, particularly focusing on the integration of Generative AI and Agentic Application models. You will play a key role in building and enhancing innovative solutions that leverage both advanced front-end and back-end technologies in a cloud environment. * Develop robust web applications integrating Generative AI and Agentic Application models. * Design and build scalable, responsive front-end interfaces. * Create and maintain efficient back-end systems and APIs. * Integrate AI frameworks into applications and support deployment in cloud environments. * Collaborate with DevOps teams to implement CI/CD pipelines and manage infrastructure.
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Looking for a Technical Business Analyst to support squads across a high-profile digital environment. You'll work closely with technical and business teams, shaping requirements and supporting delivery from discovery through to live service. The role requires someone confident engaging directly with technical and business stakeholders, translating business needs into technical requirements, and supporting squads through the full lifecycle. * Gather and refine requirements with stakeholders * Translate discovery outputs into clear epics and user stories * Work with architects and developers to validate technical feasibility * Understand RESTful APIs, data flows, and integration patterns * Contribute to agile ceremonies and support iterative delivery * Work across legacy and modern service environments * Proven experience as a Technical BA within digital or engineering
Looking for a Technical Business Analyst to support squads across a high-profile digital environment. You'll work closely with technical and business teams, shaping requirements and supporting delivery from discovery through to live service. The role requires someone confident engaging directly with technical and business stakeholders, translating business needs into technical requirements, and supporting squads through the full lifecycle. * Gather and refine requirements with stakeholders * Translate discovery outputs into clear epics and user stories * Work with architects and developers to validate technical feasibility * Understand RESTful APIs, data flows, and integration patterns * Contribute to agile ceremonies and support iterative delivery * Work across legacy and modern service environments * Proven experience as a Technical BA within digital or engineering
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Job Title: Product Security Architect (Contract) Location: UK-based / Remote - Contract: 3 months initially, Outside IR35 - Why Apply? This is an opportunity to play a key role in shaping Product Security for an international technology organisation. The role offers exposure to a federated environment across multiple business units, providing strategic influence and hands on technical impact. * Define, lead, and evolve a group-wide Product Security and Secure SSDLC strategy across all business units. * Assess current AppSec capabilities, identify gaps, and implement practical, scalable improvements. * Collaborate with Product Architects, engineering, and security teams to integrate security into GitHub, CI/CD pipelines, and development workflows. * Provide architecture guidance and implement secure coding practices, threat modelling, and security tooling.
Job Title: Product Security Architect (Contract) Location: UK-based / Remote - Contract: 3 months initially, Outside IR35 - Why Apply? This is an opportunity to play a key role in shaping Product Security for an international technology organisation. The role offers exposure to a federated environment across multiple business units, providing strategic influence and hands on technical impact. * Define, lead, and evolve a group-wide Product Security and Secure SSDLC strategy across all business units. * Assess current AppSec capabilities, identify gaps, and implement practical, scalable improvements. * Collaborate with Product Architects, engineering, and security teams to integrate security into GitHub, CI/CD pipelines, and development workflows. * Provide architecture guidance and implement secure coding practices, threat modelling, and security tooling.
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Location -We are flexible: onsite, hybrid or fully remote, depending on what works for you and the client, UK or Netherlands based. What you will actually be doing - This is not a role where you build clever models that never get used. Your focus is on creating measurable value for clients using data science, machine learning and GenAI, in a consulting and advisory context. You will own work from the very beginning, asking questions like "What value are we trying to create here?" and "Is this the right problem to solve?" through to "It is live, stakeholders are using it and we can see the impact in the numbers." You will work fairly independently and you will also be someone that more junior team members look to for help and direction. A big part of the job is taking messy, ambiguous business and technical problems and turning them into clear, valuable solutions that
Location -We are flexible: onsite, hybrid or fully remote, depending on what works for you and the client, UK or Netherlands based. What you will actually be doing - This is not a role where you build clever models that never get used. Your focus is on creating measurable value for clients using data science, machine learning and GenAI, in a consulting and advisory context. You will own work from the very beginning, asking questions like "What value are we trying to create here?" and "Is this the right problem to solve?" through to "It is live, stakeholders are using it and we can see the impact in the numbers." You will work fairly independently and you will also be someone that more junior team members look to for help and direction. A big part of the job is taking messy, ambiguous business and technical problems and turning them into clear, valuable solutions that
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The ideal candidate will have strong experience in API development, microservices architecture, CI/CD pipelines, and containerization. Additional Skills: API development, microservices, CI/CD pipelines, containerization (Docker/Kubernetes), Leadership, Greenfield development experience
The ideal candidate will have strong experience in API development, microservices architecture, CI/CD pipelines, and containerization. Additional Skills: API development, microservices, CI/CD pipelines, containerization (Docker/Kubernetes), Leadership, Greenfield development experience
Understanding of API testing tools and frameworks (e.g., RestAssured, Postman).
Understanding of API testing tools and frameworks (e.g., RestAssured, Postman).
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Familiarity with API testing, SQL queries, and data migration testing.
Familiarity with API testing, SQL queries, and data migration testing.
Expert knowledge of HTML, CSS, JavaScript Experience developing Frontend Application using Modern Javascript frameworks like React/Vue/Svelte/Angular Writing unit tests with modern front end testing frameworks like Jest Experience of consuming and modifying CI/CD pipelines Experience working with API of varying types and integrating with backend data Experience of working with cloud technologies (Azure/AWS) Capable of teaching/mentoring/pair-programming with other members of the team - Experience of Docker Experience of working in a Continuous Delivery or Deployment environment Experience of developing any backend API frameworks * Experience working with API of varying types and integrating with backend data * Experience of developing any backend API frameworks
Expert knowledge of HTML, CSS, JavaScript Experience developing Frontend Application using Modern Javascript frameworks like React/Vue/Svelte/Angular Writing unit tests with modern front end testing frameworks like Jest Experience of consuming and modifying CI/CD pipelines Experience working with API of varying types and integrating with backend data Experience of working with cloud technologies (Azure/AWS) Capable of teaching/mentoring/pair-programming with other members of the team - Experience of Docker Experience of working in a Continuous Delivery or Deployment environment Experience of developing any backend API frameworks * Experience working with API of varying types and integrating with backend data * Experience of developing any backend API frameworks
Location: Remote with the UK or Europe - Salary range: £60,000 - £70,000 - compensation outside the UK will be adjusted based on location. Please note: We are unable to sponsor international visas at this time. Were looking for 2 experienced Senior Backend Engineers to join our backend engineering team behind Nexus Mods core services. In this role, you will design, build, and scale the APIs and systems that power Nexus Mods ecosystem. This is a chance to work on problems most companies never see: massive scale, complex compatibility, and passionate user communities. * Helping millions of gamers discover, download, and manage mods effortlessly. * Empowering creators to publish, distribute, and manage their work with confidence. * Building high-traffic APIs that serve millions of requests per hour. * Designing backend systems that support both web and desktop applicatio
Location: Remote with the UK or Europe - Salary range: £60,000 - £70,000 - compensation outside the UK will be adjusted based on location. Please note: We are unable to sponsor international visas at this time. Were looking for 2 experienced Senior Backend Engineers to join our backend engineering team behind Nexus Mods core services. In this role, you will design, build, and scale the APIs and systems that power Nexus Mods ecosystem. This is a chance to work on problems most companies never see: massive scale, complex compatibility, and passionate user communities. * Helping millions of gamers discover, download, and manage mods effortlessly. * Empowering creators to publish, distribute, and manage their work with confidence. * Building high-traffic APIs that serve millions of requests per hour. * Designing backend systems that support both web and desktop applicatio
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Build your future with Sovos. If you're seeking a career where innovation meets impact, you've come to the right place. As a global leader, Sovos is transforming tax compliance from a business requirement to a force for growth while revolutionising how businesses navigate the ever-changing regulatory landscape. At Sovos, we're dedicated to more than just solving compliance challenges we're committed to making a positive and lasting difference in everything we do. Our teams operate on the modern edge of digital technology, working not only to solve complex business challenges but also to enrich our personal, professional, and local communities. Our purpose-built systems provide the tools you need to thrive in a world where governments demand increased visibility, faster reporting and greater control over business processes. Excited about the possibilities? So are we!
Build your future with Sovos. If you're seeking a career where innovation meets impact, you've come to the right place. As a global leader, Sovos is transforming tax compliance from a business requirement to a force for growth while revolutionising how businesses navigate the ever-changing regulatory landscape. At Sovos, we're dedicated to more than just solving compliance challenges we're committed to making a positive and lasting difference in everything we do. Our teams operate on the modern edge of digital technology, working not only to solve complex business challenges but also to enrich our personal, professional, and local communities. Our purpose-built systems provide the tools you need to thrive in a world where governments demand increased visibility, faster reporting and greater control over business processes. Excited about the possibilities? So are we!
Proven experience with API development and integration
Proven experience with API development and integration
Understanding of DevOps practices , cloud infrastructure automation (Terraform, Ansible), and scalable API architectures.
Understanding of DevOps practices , cloud infrastructure automation (Terraform, Ansible), and scalable API architectures.
Work closely with engineering leads across architecture, API, integrations and backend systems to ensure scalable, resilient solutions.
Work closely with engineering leads across architecture, API, integrations and backend systems to ensure scalable, resilient solutions.
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The development of C# .NET Core, Web API, Angular 9+, HTML, Responsive CSS, web applications, Microservices, web portals and service APIs, windows, and web services. * Hands-on experience designing and consuming RESTful APIs , working with Web API technologies, and integrating with legacy SOAP-based services.
The development of C# .NET Core, Web API, Angular 9+, HTML, Responsive CSS, web applications, Microservices, web portals and service APIs, windows, and web services. * Hands-on experience designing and consuming RESTful APIs , working with Web API technologies, and integrating with legacy SOAP-based services.
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Implement best-in-class API security (OAuth2, JWT). * Proven experience in API development with .NET Core or similar frameworks. * Proficiency in API security protocols and documentation tools (Swagger/OpenAPI).
Implement best-in-class API security (OAuth2, JWT). * Proven experience in API development with .NET Core or similar frameworks. * Proficiency in API security protocols and documentation tools (Swagger/OpenAPI).
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Can you transform complex API requirements into scalable & maintainable PL/SQL procedures? This includes: Oracle, PL/SQL, ETL, Toad, Git, Jira, BitBucket, Agile, UT PL/SQL (Unit testing framework), Azure DevOps, API first, MongoDB, PostGres, Python
Can you transform complex API requirements into scalable & maintainable PL/SQL procedures? This includes: Oracle, PL/SQL, ETL, Toad, Git, Jira, BitBucket, Agile, UT PL/SQL (Unit testing framework), Azure DevOps, API first, MongoDB, PostGres, Python
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You would be working on a variety of projects from Cloud Payment Gateways, API's, JSON and REST, New cloud microservices developments - there's a lot here to keep you busy. This includes: C#, .NET Core, ASP.NET (core), API's RESTful Services, JSON, Docker, GIT (Bitbucket), OOP, SOLID, Cloud deployment and microservices, SQL server, Oracle (SQL PL/SQL), AWS & Azure.
You would be working on a variety of projects from Cloud Payment Gateways, API's, JSON and REST, New cloud microservices developments - there's a lot here to keep you busy. This includes: C#, .NET Core, ASP.NET (core), API's RESTful Services, JSON, Docker, GIT (Bitbucket), OOP, SOLID, Cloud deployment and microservices, SQL server, Oracle (SQL PL/SQL), AWS & Azure.
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Working knowledge of APIs, API architecture, and webhooks, with the ability to understand and troubleshoot integrations.
Working knowledge of APIs, API architecture, and webhooks, with the ability to understand and troubleshoot integrations.
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As part of the strategy around GoCompare's acquisition by Future, we're putting in a technology roadmap for re-platforming our domain around an API-first, cloud-based serverless architecture to become the leading PCW service. * Integration Expertise: Experience with integrating SFMC (Marketing cloud connect) with other Salesforce clouds (like Sales Cloud and Service Cloud) and external systems via API and SFTP protocols.
As part of the strategy around GoCompare's acquisition by Future, we're putting in a technology roadmap for re-platforming our domain around an API-first, cloud-based serverless architecture to become the leading PCW service. * Integration Expertise: Experience with integrating SFMC (Marketing cloud connect) with other Salesforce clouds (like Sales Cloud and Service Cloud) and external systems via API and SFTP protocols.
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Demonstrable skills in supporting and deploying API technologies (REST), 3rd Party Integrations and connectors.
Demonstrable skills in supporting and deploying API technologies (REST), 3rd Party Integrations and connectors.
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Define Architectural Strategy: Use strong system and API design skills to make decisive architectural choices, ensuring our solutions are robust, scalable, and efficient
Define Architectural Strategy: Use strong system and API design skills to make decisive architectural choices, ensuring our solutions are robust, scalable, and efficient
General Knowledge of cloud security, API (Application Programming Interface) security, and associated best practices.
General Knowledge of cloud security, API (Application Programming Interface) security, and associated best practices.
Location: Remote with the UK or Europe - Salary range: £50,000 - £60,000 - compensation outside the UK will be adjusted based on location. Please note: We are unable to sponsor international visas at this time. Were looking for a Backend Engineer to join our backend engineering team. Youll be working closely with our Frontend, Product Management, Design and Digital Marketing teams, directly contributing to the backend systems that drive growth, user retention and premium conversions across Nexus Mods. Youll help build and improve the services that underpin our commercial and growth initiatives, such as, premium features, subscription flows, creator monetisation, account value, and engagement systems, all at a massive scale. This is a highly collaborative role where youll work cross-functionally to experiment, iterate, and deliver features that meaningfully impact the
Location: Remote with the UK or Europe - Salary range: £50,000 - £60,000 - compensation outside the UK will be adjusted based on location. Please note: We are unable to sponsor international visas at this time. Were looking for a Backend Engineer to join our backend engineering team. Youll be working closely with our Frontend, Product Management, Design and Digital Marketing teams, directly contributing to the backend systems that drive growth, user retention and premium conversions across Nexus Mods. Youll help build and improve the services that underpin our commercial and growth initiatives, such as, premium features, subscription flows, creator monetisation, account value, and engagement systems, all at a massive scale. This is a highly collaborative role where youll work cross-functionally to experiment, iterate, and deliver features that meaningfully impact the
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