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52 Permanent API jobs in South Yorkshire + 20 miles
225 exact matches jobs are outside your preferred location
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Applications Support Engineer
Applications Support Engineer
Oscar Associates (UK) Limited
Loughborough (LE11)
£30000 - £40000 per annum
Application Support Analyst £30,000 - £40,000 + Bonus - Hybrid (2-3 Days Onsite) East Midlands - Are you someone who loves digging into complex systems, solving problems that others can't, and becoming the go-to expert for business-critical applications? If so - this is the next step you've been waiting for. We're working with a well-established, high-growth organisation that's investing heavily in their internal technology function. With new projects landing and a major upgrade roadmap ahead, the team is now looking for an Application Support Analyst who wants responsibility, progression, and the chance to truly own the platforms they support. What You'll Be Doing * Providing 2nd/3rd line support across key business applications * Investigating incidents, diagnosing root cause, and delivering permanent fixes * Working closely with vendors, product teams, and internal
Application Support Analyst £30,000 - £40,000 + Bonus - Hybrid (2-3 Days Onsite) East Midlands - Are you someone who loves digging into complex systems, solving problems that others can't, and becoming the go-to expert for business-critical applications? If so - this is the next step you've been waiting for. We're working with a well-established, high-growth organisation that's investing heavily in their internal technology function. With new projects landing and a major upgrade roadmap ahead, the team is now looking for an Application Support Analyst who wants responsibility, progression, and the chance to truly own the platforms they support. What You'll Be Doing * Providing 2nd/3rd line support across key business applications * Investigating incidents, diagnosing root cause, and delivering permanent fixes * Working closely with vendors, product teams, and internal
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Overview - We are hiring two Full-Stack Engineers to help build a new Windows-first (Linux-capable) software platform focused on imaging, visualization, AI integration, and data management. Key Responsibilities - Develop front-end features and tools using React, TypeScript, Node.js, and modern CSS. Contribute to back-end C++ microservices supporting imaging, visualization, AI pipelines, and database operations. Collaborate on architectural decisions, APIs, and system integration between front-end and C++ services. Ensure performance, stability, and usability across Windows and Linux environments. Required Skills & Experience - Strong experience with React, TypeScript, Node.js, and front-end engineering best practices. Solid C++ development capability, ideally with microservices or high-performance systems. Understanding of imaging, visualization, or compute-intensive
Overview - We are hiring two Full-Stack Engineers to help build a new Windows-first (Linux-capable) software platform focused on imaging, visualization, AI integration, and data management. Key Responsibilities - Develop front-end features and tools using React, TypeScript, Node.js, and modern CSS. Contribute to back-end C++ microservices supporting imaging, visualization, AI pipelines, and database operations. Collaborate on architectural decisions, APIs, and system integration between front-end and C++ services. Ensure performance, stability, and usability across Windows and Linux environments. Required Skills & Experience - Strong experience with React, TypeScript, Node.js, and front-end engineering best practices. Solid C++ development capability, ideally with microservices or high-performance systems. Understanding of imaging, visualization, or compute-intensive
Our client, a well-established brand in the hospitality and travel industry, is seeking a talented Software Developer to join their collaborative in-house development team. You'll play a key role in delivering and maintaining a high-traffic e-commerce platform while working with the latest technologies in a supportive, growth-focused environment. The Role - You'll be involved in the full development lifecycle - designing, developing, and maintaining web applications built on Umbraco Cloud and .NET Core. This role offers variety, from building new features and integrations to supporting existing systems and contributing to continuous improvement initiatives. Key Responsibilities * Develop and maintain web applications in line with project requirements * Work collaboratively with designers, developers, and business stakeholders
Our client, a well-established brand in the hospitality and travel industry, is seeking a talented Software Developer to join their collaborative in-house development team. You'll play a key role in delivering and maintaining a high-traffic e-commerce platform while working with the latest technologies in a supportive, growth-focused environment. The Role - You'll be involved in the full development lifecycle - designing, developing, and maintaining web applications built on Umbraco Cloud and .NET Core. This role offers variety, from building new features and integrations to supporting existing systems and contributing to continuous improvement initiatives. Key Responsibilities * Develop and maintain web applications in line with project requirements * Work collaboratively with designers, developers, and business stakeholders
Our client, a well-established brand in the hospitality and travel industry, is seeking a talented Software Developer to join their collaborative in-house development team. You'll play a key role in delivering and maintaining a high-traffic e-commerce platform while working with the latest technologies in a supportive, growth-focused environment. The Role - You'll be involved in the full development lifecycle - designing, developing, and maintaining web applications built on Umbraco Cloud and .NET Core. This role offers variety, from building new features and integrations to supporting existing systems and contributing to continuous improvement initiatives. Key Responsibilities * Develop and maintain web applications in line with project requirements * Work collaboratively with designers, developers, and business stakeholders
Our client, a well-established brand in the hospitality and travel industry, is seeking a talented Software Developer to join their collaborative in-house development team. You'll play a key role in delivering and maintaining a high-traffic e-commerce platform while working with the latest technologies in a supportive, growth-focused environment. The Role - You'll be involved in the full development lifecycle - designing, developing, and maintaining web applications built on Umbraco Cloud and .NET Core. This role offers variety, from building new features and integrations to supporting existing systems and contributing to continuous improvement initiatives. Key Responsibilities * Develop and maintain web applications in line with project requirements * Work collaboratively with designers, developers, and business stakeholders
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Principal Back-End Developer - Manchester City Centre
Principal Back-End Developer - Manchester City Centre
Searchability (UK) Ltd
Manchester (M1), M1
£70000 - £80000 per annum + Pension, 25 days holiday, Profit Share
Join a developer-led culture where innovation meets impact. Our client is looking for a visionary Principal Back-End Developer to help shape the future of their SaaS platform. You'll set the technical direction, drive cutting-edge development, and mentor a talented team-all while delivering high-quality, resilient services that make a real difference. * Lead back-end architecture and strategy, aligning tech with business goals. * Build and deliver scalable, high-performing SaaS products. * Mentor and grow a passionate development team. * Refine processes and explore tools that boost efficiency. * Mastery of C# (.NET 6+), SQL Server, and TDD (NUnit). * Expertise in RESTful and GraphQL APIs, Git, and SOLID principles. * Strategic thinking, strong communication, and a love for collaboration. * Bonus: Experience with Azure, DevOps, Entity Framework, and observability prac
Join a developer-led culture where innovation meets impact. Our client is looking for a visionary Principal Back-End Developer to help shape the future of their SaaS platform. You'll set the technical direction, drive cutting-edge development, and mentor a talented team-all while delivering high-quality, resilient services that make a real difference. * Lead back-end architecture and strategy, aligning tech with business goals. * Build and deliver scalable, high-performing SaaS products. * Mentor and grow a passionate development team. * Refine processes and explore tools that boost efficiency. * Mastery of C# (.NET 6+), SQL Server, and TDD (NUnit). * Expertise in RESTful and GraphQL APIs, Git, and SOLID principles. * Strategic thinking, strong communication, and a love for collaboration. * Bonus: Experience with Azure, DevOps, Entity Framework, and observability prac
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Application Software Engineer - Mid-Level
Application Software Engineer - Mid-Level
Nextech Group Limited
Manchester (M1)
£45000 - £55000 per annum
Manchester (Hybrid - 3 days a week) £45,000 - £55,000 per year - We are looking for a mid-level Application Software Engineer to join our Manchester team. You will develop web and enterprise applications using Java, TypeScript, and React. This is a fantastic opportunity for developers with 2-5 years of experience to work on innovative projects in a collaborative, hybrid environment. * Develop and maintain web applications using Java, TypeScript, and React. * Work with product owners, designers, and QA to deliver high-quality solutions. * Write clean, reusable, and well-documented code following best practices. * Participate in code reviews, testing, and Agile ceremonies. * Troubleshoot and resolve software defects efficiently. * Collaborate with cross-functional teams to implement new features and improve existing ones.
Manchester (Hybrid - 3 days a week) £45,000 - £55,000 per year - We are looking for a mid-level Application Software Engineer to join our Manchester team. You will develop web and enterprise applications using Java, TypeScript, and React. This is a fantastic opportunity for developers with 2-5 years of experience to work on innovative projects in a collaborative, hybrid environment. * Develop and maintain web applications using Java, TypeScript, and React. * Work with product owners, designers, and QA to deliver high-quality solutions. * Write clean, reusable, and well-documented code following best practices. * Participate in code reviews, testing, and Agile ceremonies. * Troubleshoot and resolve software defects efficiently. * Collaborate with cross-functional teams to implement new features and improve existing ones.
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Manchester (Hybrid - 3 days in office) £35,000 - £42,000 per year - We're looking for a motivated Junior Application Software Engineer to join a collaborative software team in Manchester. This role is perfect for someone with a solid foundation in Java, TypeScript, and React, looking to grow their career and gain exposure to full-stack development, cloud technologies, and agile delivery. * Develop and maintain web applications using Java, TypeScript, and React * Assist in the design and implementation of software solutions in a collaborative team environment * Write clean, efficient, and well-tested code * Participate in code reviews, testing, and troubleshooting * Collaborate with senior engineers to learn and adopt best practices * Contribute to continuous improvement of development processes * Basic experience with Java * Experience with TypeScript * Experience wit
Manchester (Hybrid - 3 days in office) £35,000 - £42,000 per year - We're looking for a motivated Junior Application Software Engineer to join a collaborative software team in Manchester. This role is perfect for someone with a solid foundation in Java, TypeScript, and React, looking to grow their career and gain exposure to full-stack development, cloud technologies, and agile delivery. * Develop and maintain web applications using Java, TypeScript, and React * Assist in the design and implementation of software solutions in a collaborative team environment * Write clean, efficient, and well-tested code * Participate in code reviews, testing, and troubleshooting * Collaborate with senior engineers to learn and adopt best practices * Contribute to continuous improvement of development processes * Basic experience with Java * Experience with TypeScript * Experience wit
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Mobile Backend Developer (JAVA/Kotlin)
Mobile Backend Developer (JAVA/Kotlin)
Stackstudio Digital Ltd.
Manchester (M1)
From £450 to £500 per day
Preferred - Experience of building distributed scalable microservices using Java/Kotlin, Spring Boot, OAuth 2.0, Secure API design - Understanding of API design for mobile application with event driven architecture - Other technologies/areas: AWS, API Design, Automation testing
Preferred - Experience of building distributed scalable microservices using Java/Kotlin, Spring Boot, OAuth 2.0, Secure API design - Understanding of API design for mobile application with event driven architecture - Other technologies/areas: AWS, API Design, Automation testing
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API Design: Familiarity with best practices for REST and GraphQL API design.
API Design: Familiarity with best practices for REST and GraphQL API design.
FEATURED
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Lead QA Automation Engineer, C#, Home Based
Lead QA Automation Engineer, C#, Home Based
Fdo Consulting Limited
Manchester, Greater Manchester, M1
£55000 - £68000 per annum + home based + benefits
Strong Automation, API, C#, and mentoring / management skills required. * API Testing * Very strong API testing. This is a great role for a candidate who has very strong C#, API testing and automation.
Strong Automation, API, C#, and mentoring / management skills required. * API Testing * Very strong API testing. This is a great role for a candidate who has very strong C#, API testing and automation.
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Cloud Application Developer
Cloud Application Developer
Sanderson Government and Defence
Manchester (M1), M1
£60000 - £70000 per annum + Great benefits + 15k Bonus.
API development and integration (preferably using Go but not essential).
API development and integration (preferably using Go but not essential).
FEATURED
API Testing experience using Postman
API Testing experience using Postman
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Understanding of API development (FastAPI) and scalable, high-performance system design.
Understanding of API development (FastAPI) and scalable, high-performance system design.
PREMIUM
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Product Owner
Product Owner
Daniel James Resourcing Ltd
Manchester, Greater Manchester, M1 3BN
£50000 - £55000 per annum
Working on data, analytics, or API-driven products.
Working on data, analytics, or API-driven products.
Familiarity with AWS services such as API Gateway, Lambda, and CloudWatch
Familiarity with AWS services such as API Gateway, Lambda, and CloudWatch
Senior Test Engineer (Automation)
Senior Test Engineer (Automation)
Daniel James Resourcing Ltd
Manchester, Greater Manchester, M60 7RA
£65000 - £70000 per annum
Developing automated test suites using C#, Playwright/Cypress, and RestSharp for web and API testing. * Strong experience in automation testing within modern web and API environments.
Developing automated test suites using C#, Playwright/Cypress, and RestSharp for web and API testing. * Strong experience in automation testing within modern web and API environments.
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Data exchange and processing skills (e.g. ETL, ESB, API...)
Data exchange and processing skills (e.g. ETL, ESB, API...)
FEATURED
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API development experience
API development experience
FEATURED
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Experience with Azure API Management, including policy configuration and integration with Front Door and/or Application Gateway.
Experience with Azure API Management, including policy configuration and integration with Front Door and/or Application Gateway.
Design, develop, and deliver custom solutions within Planon's API framework.
Design, develop, and deliver custom solutions within Planon's API framework.
FEATURED
Design, develop, and deliver custom solutions within Planon's API framework.
Design, develop, and deliver custom solutions within Planon's API framework.
FEATURED
Design, develop, and deliver custom solutions within Planon's API framework.
Design, develop, and deliver custom solutions within Planon's API framework.
FEATURED
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API Development
API Development
Hands-on experience with Google Ads scripts, API integrations, and automation tools. * Manage advanced tracking setups using Google Tag Manager, server-side tagging, and conversion API, including orchestration of identifiers and campaign metadata all the way through to marketing and sales systems.
Hands-on experience with Google Ads scripts, API integrations, and automation tools. * Manage advanced tracking setups using Google Tag Manager, server-side tagging, and conversion API, including orchestration of identifiers and campaign metadata all the way through to marketing and sales systems.
Build and maintain API integrations with upstream systems and data sources using established integration patterns. * Experience or clear interest in API design, development, and integration (REST, GraphQL, OAuth2, webhooks). * Exposure to Microsoft 365 Co-Pilot, Power Automate, or Graph API integrations.
Build and maintain API integrations with upstream systems and data sources using established integration patterns. * Experience or clear interest in API design, development, and integration (REST, GraphQL, OAuth2, webhooks). * Exposure to Microsoft 365 Co-Pilot, Power Automate, or Graph API integrations.