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Locations
Locations
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Date posted
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16 Permanent API jobs in East Midlands + 20 miles
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QA Test Engineer / Technical Lead C# Postman API
QA Test Engineer / Technical Lead C# Postman API
Client Server
NG1, Nottingham, NG1 7AB
£55000 - £65000 per annum
You have strong API testing experience, ideally with Postman - Apply now to find out more about this QA Test Engineer / Technical Lead (C# Postman API SaaS) opportunity.
You have strong API testing experience, ideally with Postman - Apply now to find out more about this QA Test Engineer / Technical Lead (C# Postman API SaaS) opportunity.
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Senior Software Developer API
Senior Software Developer API
Frontier Agriculture Limited
Witham St. Hughs, LN6 9TN
Competitive + Benefits + 33 Days Holiday + Employee Assistance Program
Expert skills in JavaScript, TypeScript, React, Node.js, Express, RESTful API, GraphQL, Git, HTML, CSS, SQL
Expert skills in JavaScript, TypeScript, React, Node.js, Express, RESTful API, GraphQL, Git, HTML, CSS, SQL
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Software Developer API
Software Developer API
Frontier Agriculture Limited
Witham St. Hughs, LN6 9TN
Competitive + Benefits + 33 Days Holiday + Employee Assistance Program
Strong skills in JavaScript, TypeScript, React, Node.js, Express, RESTful API, GraphQL, HTML, CSS, SQL
Strong skills in JavaScript, TypeScript, React, Node.js, Express, RESTful API, GraphQL, HTML, CSS, SQL
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Major IT & Digital are delighted to be working with one of UKs leading IT and telecom business operating across a well-established UK client base. The company has seen rapid growth over the last 4 years, coupled with 25 years specialist industry knowledge within the telecoms and managed services arena. Are you a forward-thinking Solutions Architect with a strong background in designing and building resilient solutions? A key requirement of the this role is the ability to design high quality end-to-end solutions that align with my clients business goals, ensuring scalable and secure system architecture with practical hands on delivery. The ideal person will have a solid understanding of network security principles and enterprise architecture design including strong cloud deployment knowledge (AWS or Azure) and DevOps principles experience.
Major IT & Digital are delighted to be working with one of UKs leading IT and telecom business operating across a well-established UK client base. The company has seen rapid growth over the last 4 years, coupled with 25 years specialist industry knowledge within the telecoms and managed services arena. Are you a forward-thinking Solutions Architect with a strong background in designing and building resilient solutions? A key requirement of the this role is the ability to design high quality end-to-end solutions that align with my clients business goals, ensuring scalable and secure system architecture with practical hands on delivery. The ideal person will have a solid understanding of network security principles and enterprise architecture design including strong cloud deployment knowledge (AWS or Azure) and DevOps principles experience.
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Understanding of Dell Boomi AtomSphere, including Atoms, Molecules, and API management
Understanding of Dell Boomi AtomSphere, including Atoms, Molecules, and API management
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Experience with MACH architecture, CDN optimization, and service mesh/API gateways.
Experience with MACH architecture, CDN optimization, and service mesh/API gateways.
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Full Stack Developer - React.js | Node.js | SQL Server - Location: Nottinghamshire, 2 days a week in office - Employment Type: Permanent - Salary: Based on experience - Due to continued success, I am looking for a skilled Mid-Level Full Stack Developer to join my clients growing team working on a modern, web-based platform. This is a hands-on role where you'll be building new applications and enhancing existing ones using React.js, Node.js, and SQL Server. The role is offered on a hybrid basis, minimum 2 days a week in their Nottinghamshire office * Develop and maintain full-stack web applications with a focus on performance and scalability. * Build responsive, data-driven UIs using React.js, consuming JSON APIs. * Create and enhance backend services using Node.js. * Work with complex business logic implemented in SQL Server stored procedures.
Full Stack Developer - React.js | Node.js | SQL Server - Location: Nottinghamshire, 2 days a week in office - Employment Type: Permanent - Salary: Based on experience - Due to continued success, I am looking for a skilled Mid-Level Full Stack Developer to join my clients growing team working on a modern, web-based platform. This is a hands-on role where you'll be building new applications and enhancing existing ones using React.js, Node.js, and SQL Server. The role is offered on a hybrid basis, minimum 2 days a week in their Nottinghamshire office * Develop and maintain full-stack web applications with a focus on performance and scalability. * Build responsive, data-driven UIs using React.js, consuming JSON APIs. * Create and enhance backend services using Node.js. * Work with complex business logic implemented in SQL Server stored procedures.
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Job Title: QA Automation Engineer - Full Time 37.5 hours Monday to Friday, Hybrid (3/4 days in the office) Location: Market Harborough, Leicestershire - Salary: £35,000 to £45,000 dependent on experience - We are seeking a QA Automation Engineer with a strong background in writing and maintaining automated tests. This role will focus primarily on writing unit tests and implementing automated UI testing using Playwright. The successful candidate will work within a Behaviour-Driven Development (BDD) framework using Spec Flow, ensuring test automation aligns with business requirements. You will collaborate with developers, product managers, and other stakeholders to uphold software quality and reliability through structured automated testing. CDS Global are the brand behind world-class brands. We deliver unparalleled technology, payment and data solutions, making us the
Job Title: QA Automation Engineer - Full Time 37.5 hours Monday to Friday, Hybrid (3/4 days in the office) Location: Market Harborough, Leicestershire - Salary: £35,000 to £45,000 dependent on experience - We are seeking a QA Automation Engineer with a strong background in writing and maintaining automated tests. This role will focus primarily on writing unit tests and implementing automated UI testing using Playwright. The successful candidate will work within a Behaviour-Driven Development (BDD) framework using Spec Flow, ensuring test automation aligns with business requirements. You will collaborate with developers, product managers, and other stakeholders to uphold software quality and reliability through structured automated testing. CDS Global are the brand behind world-class brands. We deliver unparalleled technology, payment and data solutions, making us the
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Senior Case Management Developer (P4W / Partner for Windows)
Senior Case Management Developer (P4W / Partner for Windows)
Exalto Consulting ltd
Moorway, DE1 2ND
£50,000-£60,000
Senior Case Management Systems Developer - Location: (hybrid working considered in Leeds / Derby / Birmingham) A leading professional services organisation is seeking an experienced Senior Case Management Systems Developer to join its growing Systems Development team. This is a key technical role focused on enhancing and maintaining legal case management systems, with an emphasis on Partner for Windows (P4W), alongside other platforms such as DPS and Liberate. You will lead the development of workflows, automation, and system integrations to improve business processes across legal operations. This role involves close collaboration with legal, IT, and compliance stakeholders to ensure technology supports efficient, secure, and scalable service delivery. * Design, develop, and enhance case management workflows and integrations, primarily within Partner for Windows / P4W
Senior Case Management Systems Developer - Location: (hybrid working considered in Leeds / Derby / Birmingham) A leading professional services organisation is seeking an experienced Senior Case Management Systems Developer to join its growing Systems Development team. This is a key technical role focused on enhancing and maintaining legal case management systems, with an emphasis on Partner for Windows (P4W), alongside other platforms such as DPS and Liberate. You will lead the development of workflows, automation, and system integrations to improve business processes across legal operations. This role involves close collaboration with legal, IT, and compliance stakeholders to ensure technology supports efficient, secure, and scalable service delivery. * Design, develop, and enhance case management workflows and integrations, primarily within Partner for Windows / P4W
We're looking for a skilledFull-Stack Developerwho thrives at the intersection of geospatial data, modern web technologies, and backend API development. Backend:Node.js, Python, .NET (or equivalent) API development * Proven experience infront-end mapping librariesandbackend API development
We're looking for a skilledFull-Stack Developerwho thrives at the intersection of geospatial data, modern web technologies, and backend API development. Backend:Node.js, Python, .NET (or equivalent) API development * Proven experience infront-end mapping librariesandbackend API development
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Execute Load, stress and capacity tests across SAP, Web and API based applications
Execute Load, stress and capacity tests across SAP, Web and API based applications
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Senior Software Development Engineer - Site Reliability
Senior Software Development Engineer - Site Reliability
Capital One (Europe) plc
Nottingham, Nottinghamshire
Competitive
Passionate about API testing utilising tools similar to Wiremock, Pact, Postman and Cucumber. * Good understanding of API authentication and authorisation mechanisms like OAuth.
Passionate about API testing utilising tools similar to Wiremock, Pact, Postman and Cucumber. * Good understanding of API authentication and authorisation mechanisms like OAuth.
Lead on API development and management (experience with Flask and Azure API Management tools beneficial).
Lead on API development and management (experience with Flask and Azure API Management tools beneficial).
Vacancy: 1 - Location: Leicester - TESTQ Technologies is an IT services and solutions company whose offerings spans over variety of industry sectors with strong technical, domain and process expertise helping clients grow their businesses and decrease operational costs on continuous basis in an ever-changing business environment. This opportunity is in the solution design and development arena for IT Business Analyst who will play a major role in the technical design and development of the companys technical offerings. The position is based at our Leicester office with occasional assignments at client locations. * Gather, analyze, and document business requirements from stakeholders. * Translate business needs into functional specifications for IT solutions. * Conduct gap analysis, process mapping, and workflow modeling.
Vacancy: 1 - Location: Leicester - TESTQ Technologies is an IT services and solutions company whose offerings spans over variety of industry sectors with strong technical, domain and process expertise helping clients grow their businesses and decrease operational costs on continuous basis in an ever-changing business environment. This opportunity is in the solution design and development arena for IT Business Analyst who will play a major role in the technical design and development of the companys technical offerings. The position is based at our Leicester office with occasional assignments at client locations. * Gather, analyze, and document business requirements from stakeholders. * Translate business needs into functional specifications for IT solutions. * Conduct gap analysis, process mapping, and workflow modeling.
Understanding of Microservices, API call, even streaming technologies.
Understanding of Microservices, API call, even streaming technologies.
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Experience with api-based testing.
Experience with api-based testing.
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20 exact matches jobs are outside your preferred location
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Due to continued success, they are looking to grow one of their key software engineering teams working on some of their most successful SaaS products. The Senior C# Software Engineer will join an established team developing business logic for Windows based products. Key experience * Extensive commercial experience in C# Windows programming * Multithreading / TPL * XML * SQL * Version control * Unit testing Experience in any of the following areas would be advantageous but is not a prerequisite * WIX installers * Windows services eg Active Directory, Exchange etc * Client-server architecture development * M365 APIs If you are seeking a role of this nature please get in touch for more information. Spectrum IT Recruitment (South) Limited is acting as an Employment Agency in relation to this vacancy.
Due to continued success, they are looking to grow one of their key software engineering teams working on some of their most successful SaaS products. The Senior C# Software Engineer will join an established team developing business logic for Windows based products. Key experience * Extensive commercial experience in C# Windows programming * Multithreading / TPL * XML * SQL * Version control * Unit testing Experience in any of the following areas would be advantageous but is not a prerequisite * WIX installers * Windows services eg Active Directory, Exchange etc * Client-server architecture development * M365 APIs If you are seeking a role of this nature please get in touch for more information. Spectrum IT Recruitment (South) Limited is acting as an Employment Agency in relation to this vacancy.
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ClearCourse - Location: Remote - Salary: Competitive + Bonus + Benefits - Role Type: Full-Time, Permanent - Shape the Future of SaaS in a Hands-On, High-Impact Engineering Role - Are you a highly skilled C#/.NET and Angular developer with a passion for building clean, scalable software in a modern tech environment? Are you looking for the freedom to make meaningful technical decisions, mentor others, and contribute to a long-standing SaaS product used by thousands? Were seeking a Senior Software Engineer to join our small, agile development team at ClearCourse. Youll play a key role in designing, building, and maintaining a feature-rich, high-availability application hosted on Azurewhile influencing decisions across architecture, testing, performance, and quality. * C# 7+ / .NET * Angular 13+ * SQL Server * Redis * APIs and Integrations * Message Queues * CI/CD Pipeli
ClearCourse - Location: Remote - Salary: Competitive + Bonus + Benefits - Role Type: Full-Time, Permanent - Shape the Future of SaaS in a Hands-On, High-Impact Engineering Role - Are you a highly skilled C#/.NET and Angular developer with a passion for building clean, scalable software in a modern tech environment? Are you looking for the freedom to make meaningful technical decisions, mentor others, and contribute to a long-standing SaaS product used by thousands? Were seeking a Senior Software Engineer to join our small, agile development team at ClearCourse. Youll play a key role in designing, building, and maintaining a feature-rich, high-availability application hosted on Azurewhile influencing decisions across architecture, testing, performance, and quality. * C# 7+ / .NET * Angular 13+ * SQL Server * Redis * APIs and Integrations * Message Queues * CI/CD Pipeli
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Full Stack Developer - DV Cleared - Hybrid - Various Locations
Full Stack Developer - DV Cleared - Hybrid - Various Locations
Experis
UK
£60000 - £120000 per annum + Excellent Benefits
Full Stack Developer - Must have an Active DV Clearance - Hybrid - Location: Bristol, London, Manchester or Cambridge - Salary: £70,000 - £120,000 (depending on experience and clearance) We are looking for a Full Stack Developer to join a growing public sector team delivering secure, high-impact digital services across Defence & Security. This is a unique opportunity to use your development expertise to help solve real-world challenges for government and national security clients. You'll work on meaningful projects in an agile environment, applying your skills across the full software development lifecycle - from design through to deployment. You'll be part of a collaborative and supportive engineering team, working alongside technical leads, project managers, and stakeholders to deliver robust and scalable solutions.
Full Stack Developer - Must have an Active DV Clearance - Hybrid - Location: Bristol, London, Manchester or Cambridge - Salary: £70,000 - £120,000 (depending on experience and clearance) We are looking for a Full Stack Developer to join a growing public sector team delivering secure, high-impact digital services across Defence & Security. This is a unique opportunity to use your development expertise to help solve real-world challenges for government and national security clients. You'll work on meaningful projects in an agile environment, applying your skills across the full software development lifecycle - from design through to deployment. You'll be part of a collaborative and supportive engineering team, working alongside technical leads, project managers, and stakeholders to deliver robust and scalable solutions.
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Proficiency in REST API development
Proficiency in REST API development
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API-centric architectures.
API-centric architectures.
Closing date: 12/08/2025 - 37 hours / Permanent - 37,938 - 39,513 * Canolfan Rheidol, Aberystwyth *All salary values are pro-rata. Apply Online - About the role - Please note that the advertised salary for this position is subject to a pending pay award. The final salary will be adjusted in line with the nationally agreed pay award. Join Our Team as a ICT Senior Data Engineer - We are seeking a highly skilled Data Engineer to join our team. This role focuses on managing and transitioning data from traditional on-premises SQL environments to Azure cloud solutions, with a special emphasis on master data management using MS Azure SQL. The successful candidate will be key in integrating various Management Information System (MIS) databases with Azure master data repositories. Ceredigion County Council is a leading, innovative organisation that are supporting the citizens
Closing date: 12/08/2025 - 37 hours / Permanent - 37,938 - 39,513 * Canolfan Rheidol, Aberystwyth *All salary values are pro-rata. Apply Online - About the role - Please note that the advertised salary for this position is subject to a pending pay award. The final salary will be adjusted in line with the nationally agreed pay award. Join Our Team as a ICT Senior Data Engineer - We are seeking a highly skilled Data Engineer to join our team. This role focuses on managing and transitioning data from traditional on-premises SQL environments to Azure cloud solutions, with a special emphasis on master data management using MS Azure SQL. The successful candidate will be key in integrating various Management Information System (MIS) databases with Azure master data repositories. Ceredigion County Council is a leading, innovative organisation that are supporting the citizens
Full Stack Developer .NET / Angular - Hybrid 2 -3 days based in Coleshill, Warwickshire (UK-based) | Permanent | Full-Time? Work on a global SaaS platform transforming recruitment tech - Microsoft Partner | Cutting-Edge Greenfield Projects | Agile Delivery - About Mercury - Mercury is a fast-growing SaaS business operating in close partnership with Microsoft. We specialise in delivering market-leading recruitment technology to professional staffing sectors worldwide. Our flagship product is a custom-built Applicant Tracking System (ATS) built on Microsoft Dynamics 365, tailored specifically for recruitment agencies and talent-focused businesses. With a modern tech stack and a culture of innovation, were on a mission to transform how recruitment businesses operate empowering them with scalable, intuitive software solutions. The Role
Full Stack Developer .NET / Angular - Hybrid 2 -3 days based in Coleshill, Warwickshire (UK-based) | Permanent | Full-Time? Work on a global SaaS platform transforming recruitment tech - Microsoft Partner | Cutting-Edge Greenfield Projects | Agile Delivery - About Mercury - Mercury is a fast-growing SaaS business operating in close partnership with Microsoft. We specialise in delivering market-leading recruitment technology to professional staffing sectors worldwide. Our flagship product is a custom-built Applicant Tracking System (ATS) built on Microsoft Dynamics 365, tailored specifically for recruitment agencies and talent-focused businesses. With a modern tech stack and a culture of innovation, were on a mission to transform how recruitment businesses operate empowering them with scalable, intuitive software solutions. The Role
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Software Consulting Engineer – T&D Configuration Systems & Software Solutions
Software Consulting Engineer – T&D Configuration Systems & Software Solutions
GE Vernova
UK
Competitive
Drive the integration IEC 61850 engineering workflows (SCL-based ICD, SCD, SSD) into intuitive, automated tooling ecosystems aligned with modern UI/UX, API design, and utility integration requirements. * Knowledge of data modeling, API integration, network communications, and cybersecurity practices.
Drive the integration IEC 61850 engineering workflows (SCL-based ICD, SCD, SSD) into intuitive, automated tooling ecosystems aligned with modern UI/UX, API design, and utility integration requirements. * Knowledge of data modeling, API integration, network communications, and cybersecurity practices.
Job Introduction - Job Title: Technical Business Analyst - Salary: £51,000 - 56,000 - Contract: Permanent - Location: Hybrid based in Warrington - Weekly Hours: 35 hours per week - So. What is this role exactly? This is an exciting opportunity for a Technical Business Analyst to join our Data & Business Intelligence team. We're continuing to evolve our data capabilities and governance frameworks-so it's a great time to be part of the journey. We're looking for someone who's passionate about data, thrives on technical analysis, and takes pride in delivering high-quality solutions that support business strategy and decision-making. What will my working week look like? You will be homebased, living within the North West, within a reasonable travelling distance of our Head Office in Warrington, to attend meetings and training courses when needed.
Job Introduction - Job Title: Technical Business Analyst - Salary: £51,000 - 56,000 - Contract: Permanent - Location: Hybrid based in Warrington - Weekly Hours: 35 hours per week - So. What is this role exactly? This is an exciting opportunity for a Technical Business Analyst to join our Data & Business Intelligence team. We're continuing to evolve our data capabilities and governance frameworks-so it's a great time to be part of the journey. We're looking for someone who's passionate about data, thrives on technical analysis, and takes pride in delivering high-quality solutions that support business strategy and decision-making. What will my working week look like? You will be homebased, living within the North West, within a reasonable travelling distance of our Head Office in Warrington, to attend meetings and training courses when needed.
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