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17 Contract API jobs in South Yorkshire + 20 miles
Minimum of 8 years' applied experience as an API engineer * Strong experience in API designing and creating architectural artefacts such as gap analysis, low level designs, data models etc.
Minimum of 8 years' applied experience as an API engineer * Strong experience in API designing and creating architectural artefacts such as gap analysis, low level designs, data models etc.
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As the Lead Developer, you will be working across the full stack, with a primary focus on React-based front-end applications, while also contributing to back-end architecture and API integration.
As the Lead Developer, you will be working across the full stack, with a primary focus on React-based front-end applications, while also contributing to back-end architecture and API integration.
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Lead Automation Test Engineer
Lead Automation Test Engineer
Vallum Associates Limited
Sheffield (S1)
From £450 to £500 per day Inside IR35
Experience of using automation tools such as Selenium web driver IO (WDIO) / Cucumber etc, Selenium for UI testing and RestAssured for API testing
Experience of using automation tools such as Selenium web driver IO (WDIO) / Cucumber etc, Selenium for UI testing and RestAssured for API testing
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Provide architectural guidance on MDM platform selection, cloud vs. on-prem deployment, and integration patterns (API, ETL, messaging).
Provide architectural guidance on MDM platform selection, cloud vs. on-prem deployment, and integration patterns (API, ETL, messaging).
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Use automation tools such as Selenium WebDriver IO (WDIO), Cucumber, Selenium (UI), and RestAssured (API). * Exposure to SailPoint IdentityIQ, identity warehousing, and ingestion formats: SCIM, REST API, LDAP, OIDC, CSV. * API testing, API Gateway testing, and Batch/ETL testing.
Use automation tools such as Selenium WebDriver IO (WDIO), Cucumber, Selenium (UI), and RestAssured (API). * Exposure to SailPoint IdentityIQ, identity warehousing, and ingestion formats: SCIM, REST API, LDAP, OIDC, CSV. * API testing, API Gateway testing, and Batch/ETL testing.
Develop, execute, and maintain automated test frameworks and scripts for web, API, database, and cloud-based applications. * Hands-on experience with automation tools such as Selenium WebDriver IO (WDIO), Cucumber, Selenium UI, and RestAssured for API testing. * API Testing, API Gateway testing, Batch/ETL testing. * Experience with SailPoint IdentityIQ, identity warehousing, SCIM, REST API, LDAP, OIDC, CSV ingestion.
Develop, execute, and maintain automated test frameworks and scripts for web, API, database, and cloud-based applications. * Hands-on experience with automation tools such as Selenium WebDriver IO (WDIO), Cucumber, Selenium UI, and RestAssured for API testing. * API Testing, API Gateway testing, Batch/ETL testing. * Experience with SailPoint IdentityIQ, identity warehousing, SCIM, REST API, LDAP, OIDC, CSV ingestion.
Strong theoretical and practical knowledge of API and database testing. * Exposure to AD/ADLDS, API Gateway testing, Batch/ETL testing. * Experience with SailPoint IdentityIQ, Identity Warehousing, SCIM, REST API, LDAP, OIDC, CSV ingestion.
Strong theoretical and practical knowledge of API and database testing. * Exposure to AD/ADLDS, API Gateway testing, Batch/ETL testing. * Experience with SailPoint IdentityIQ, Identity Warehousing, SCIM, REST API, LDAP, OIDC, CSV ingestion.
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Experience of using automation tools such as Selenium web driver IO (WDIO) / Cucumber etc, Selenium for UI testing and RestAssured for API testing * Any exposure to SailPoint IdentityIQ, Identity warehousing, and working with protocols and formats for data ingestion such as SCIM, REST API, LDAP, OIDC and CSV * API Testing, API Gateway testing, Batch ETL testing * API
Experience of using automation tools such as Selenium web driver IO (WDIO) / Cucumber etc, Selenium for UI testing and RestAssured for API testing * Any exposure to SailPoint IdentityIQ, Identity warehousing, and working with protocols and formats for data ingestion such as SCIM, REST API, LDAP, OIDC and CSV * API Testing, API Gateway testing, Batch ETL testing * API
FEATURED
Strong, theoretical, and practical knowledge of API and Database testing
Strong, theoretical, and practical knowledge of API and Database testing
FEATURED
Experience of using automation tools such as Selenium web driver IO (WDIO) / Cucumber etc, Selenium for UI testing and RestAssured for API testing * Any exposure to SailPoint IdentityIQ, Identity warehousing, and working with protocols and formats for data ingestion such as SCIM, REST API, LDAP, OIDC and CSV * API Testing, API Gateway testing, Batch ETL testing * API
Experience of using automation tools such as Selenium web driver IO (WDIO) / Cucumber etc, Selenium for UI testing and RestAssured for API testing * Any exposure to SailPoint IdentityIQ, Identity warehousing, and working with protocols and formats for data ingestion such as SCIM, REST API, LDAP, OIDC and CSV * API Testing, API Gateway testing, Batch ETL testing * API
FEATURED
Minimum of 15 years applied experience as an API engineer * Strong experience in API designing and creating architectural artefacts such as gap analysis, low level designs, data models etc.
Minimum of 15 years applied experience as an API engineer * Strong experience in API designing and creating architectural artefacts such as gap analysis, low level designs, data models etc.
The ideal candidate should not only have technical proficiency in data structures, automation technologies, API interactions, and cloud services, but also exhibit a strong drive to research, investigate, and collaborate effectively within the organization. Experience with API development and integrations with platforms such as Kong API Gateway (ideal), Apigee, AWS API GW, Azure API GW, etc API Integration and Management: Expertise in querying, integrating, and managing APIs. Capable of constructing and executing API calls for data retrieval, updates, and inter-service communication.
The ideal candidate should not only have technical proficiency in data structures, automation technologies, API interactions, and cloud services, but also exhibit a strong drive to research, investigate, and collaborate effectively within the organization. Experience with API development and integrations with platforms such as Kong API Gateway (ideal), Apigee, AWS API GW, Azure API GW, etc API Integration and Management: Expertise in querying, integrating, and managing APIs. Capable of constructing and executing API calls for data retrieval, updates, and inter-service communication.
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Role: Senior Software Engineer - Backend Contract - Rate: C.£550 Outside IR35 Per day - Location: Leeds - Hybrid (2x days on site) Length: 3-6 months - We are working with a growing, forward-thinking technology company dedicated to building scalable, reliable, and high-performing solutions for our customers. As a Senior Software Engineer, you will be responsible for designing, developing, and maintaining server-side applications and services. You'll work closely with cross-functional teams to ensure our systems are performant, secure, and deliver a great user experience. * Design, implement, and maintain backend services, APIs, and databases. * Collaborate with product managers, frontend engineers, and other stakeholders to deliver features end-to-end. * Ensure systems are scalable, reliable, and maintainable. * Write clean, testable, and efficient code following best
Role: Senior Software Engineer - Backend Contract - Rate: C.£550 Outside IR35 Per day - Location: Leeds - Hybrid (2x days on site) Length: 3-6 months - We are working with a growing, forward-thinking technology company dedicated to building scalable, reliable, and high-performing solutions for our customers. As a Senior Software Engineer, you will be responsible for designing, developing, and maintaining server-side applications and services. You'll work closely with cross-functional teams to ensure our systems are performant, secure, and deliver a great user experience. * Design, implement, and maintain backend services, APIs, and databases. * Collaborate with product managers, frontend engineers, and other stakeholders to deliver features end-to-end. * Ensure systems are scalable, reliable, and maintainable. * Write clean, testable, and efficient code following best
Greetings, We are hiring for a Technical Business Analyst Position in Sheffield - 3 days onsite - Hybrid - 6-month contract - Key Responsibilities * Gather, document, and analyze business requirements from stakeholders. * Translate business needs into technical specifications for development and DevOps teams. * Collaborate with cross-functional teams to design and implement scalable solutions. * Support the creation and maintenance of CI/CD pipelines using tools like Jenkins, GitHub Actions, and Azure DevOps. * Manage and optimize artifact repositories using Nexus or JFrog Artifactory. * Facilitate sprint planning, backlog grooming, and retrospectives in Agile/Scrum environments. * Monitor KPIs and provide data-driven recommendations for process improvements. * Ensure traceability of requirements through testing and deployment phases.
Greetings, We are hiring for a Technical Business Analyst Position in Sheffield - 3 days onsite - Hybrid - 6-month contract - Key Responsibilities * Gather, document, and analyze business requirements from stakeholders. * Translate business needs into technical specifications for development and DevOps teams. * Collaborate with cross-functional teams to design and implement scalable solutions. * Support the creation and maintenance of CI/CD pipelines using tools like Jenkins, GitHub Actions, and Azure DevOps. * Manage and optimize artifact repositories using Nexus or JFrog Artifactory. * Facilitate sprint planning, backlog grooming, and retrospectives in Agile/Scrum environments. * Monitor KPIs and provide data-driven recommendations for process improvements. * Ensure traceability of requirements through testing and deployment phases.
Understanding of RESTful APIs, API management platforms, and web server architectures.
Understanding of RESTful APIs, API management platforms, and web server architectures.
Software Engineer (AI & Machine Learning Focus)
Software Engineer (AI & Machine Learning Focus)
Bluetree Group
Rotherham, South Yorkshire
£40,000 - £60,000 a year
Drive E-commerce Innovation: Use AI to Simplify Print for Hundreds of Thousands of Customers. Location: Manvers, Rotherham - Type: Full-time Monday to Friday 9am - 5.30pm with flexible working options. Salary: £40,000-£60,000 depending on experience - We're a leading e-commerce print company operating two distinct online brands, route1print and instantprint. Our core mission is simple: to make print buying as easy as possible for small businesses. We are looking for a talented Software Engineer to leverage cutting-edge technology to drive this mission forward. From automating complex artwork manipulation and streamlining responses to customer queries to identifying proactive opportunities to improve the end-to-end user experience, you will play a crucial role in using AI to enhance the online customer journey,
Drive E-commerce Innovation: Use AI to Simplify Print for Hundreds of Thousands of Customers. Location: Manvers, Rotherham - Type: Full-time Monday to Friday 9am - 5.30pm with flexible working options. Salary: £40,000-£60,000 depending on experience - We're a leading e-commerce print company operating two distinct online brands, route1print and instantprint. Our core mission is simple: to make print buying as easy as possible for small businesses. We are looking for a talented Software Engineer to leverage cutting-edge technology to drive this mission forward. From automating complex artwork manipulation and streamlining responses to customer queries to identifying proactive opportunities to improve the end-to-end user experience, you will play a crucial role in using AI to enhance the online customer journey,
Technical Consultant - (Local Government - Data Migration Focus)
Technical Consultant - (Local Government - Data Migration Focus)
Civica
Leeds, West Yorkshire
Competitive
Were Civica, and we create software that helps deliver critical services for citizens all around the world. From local government, to education, health, and care, over 5,000 public bodies across the globe use our software to provide essential services to over 100 million citizens. Our aspiration is to be a GovTech champion everywhere we work, supporting the needs of citizens and those who serve them every day. Building on 21 years of continuous growth and success, we're at a pivotal point in our journey to realise that aspiration. Why you will love this opportunity as Technical Consultant at Civica - Its an essential role in the Civica LG Division Services Team, working across a range of products and customers in the portfolio to deliver professional services consultancy on several concurrent projects.
Were Civica, and we create software that helps deliver critical services for citizens all around the world. From local government, to education, health, and care, over 5,000 public bodies across the globe use our software to provide essential services to over 100 million citizens. Our aspiration is to be a GovTech champion everywhere we work, supporting the needs of citizens and those who serve them every day. Building on 21 years of continuous growth and success, we're at a pivotal point in our journey to realise that aspiration. Why you will love this opportunity as Technical Consultant at Civica - Its an essential role in the Civica LG Division Services Team, working across a range of products and customers in the portfolio to deliver professional services consultancy on several concurrent projects.
90 exact matches jobs are outside your preferred location
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Strong integration and API expertise (including REST)
Strong integration and API expertise (including REST)
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Familiarity with databases, API design, and cross-platform development.
Familiarity with databases, API design, and cross-platform development.
Join our Cloud Native Engineering Lab as a Senior Cloud Platform Engineer (GCP) and help us design, build, and operate secure, automated cloud platforms that empower product teams to deliver API-first services at pace and with confidence. * API-First Enablement: Enable API-first delivery with reusable patterns and golden paths for API producers and consumers. * Strong API design and security skills (REST/OpenAPI, authN/Z, mTLS, certificate lifecycle). o Apigee for API Management * Desirable: Harness, HashiCorp Vault, Dynatrace, Docker/buildah, NodeJS for API tooling, relevant GCP certifications. * Harness, HashiCorp Vault, Dynatrace, Docker/buildah, NodeJS for API tooling, Google Professional Cloud Architect or GCP DevOps certificatio
Join our Cloud Native Engineering Lab as a Senior Cloud Platform Engineer (GCP) and help us design, build, and operate secure, automated cloud platforms that empower product teams to deliver API-first services at pace and with confidence. * API-First Enablement: Enable API-first delivery with reusable patterns and golden paths for API producers and consumers. * Strong API design and security skills (REST/OpenAPI, authN/Z, mTLS, certificate lifecycle). o Apigee for API Management * Desirable: Harness, HashiCorp Vault, Dynatrace, Docker/buildah, NodeJS for API tooling, relevant GCP certifications. * Harness, HashiCorp Vault, Dynatrace, Docker/buildah, NodeJS for API tooling, Google Professional Cloud Architect or GCP DevOps certificatio
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Fullstack Java Software Engineer – 6 Month Contract - Hybrid 2-3 days a week in office in Manchester or Gloucester | DV Cleared - I'm working with a technology and engineering business who are after a Full Stack Software Engineer to join their team working on high-impact projects within the national security space. They’re trusted partners to government and defence clients, building mission-critical software that helps keep the UK safe. Expect a mix of work across AI, Cyber, Cloud, and Platform Engineering — proper engineering challenges with real-world impact. You’ll be hands-on across the stack, developing APIs, data layers, and slick UIs, while collaborating with customers and researchers to turn ideas into working solutions. What They’re After * Strong Java / Spring Boot * Ideally React/Typescript experience * Solid grasp of testing and agile ways of working
Fullstack Java Software Engineer – 6 Month Contract - Hybrid 2-3 days a week in office in Manchester or Gloucester | DV Cleared - I'm working with a technology and engineering business who are after a Full Stack Software Engineer to join their team working on high-impact projects within the national security space. They’re trusted partners to government and defence clients, building mission-critical software that helps keep the UK safe. Expect a mix of work across AI, Cyber, Cloud, and Platform Engineering — proper engineering challenges with real-world impact. You’ll be hands-on across the stack, developing APIs, data layers, and slick UIs, while collaborating with customers and researchers to turn ideas into working solutions. What They’re After * Strong Java / Spring Boot * Ideally React/Typescript experience * Solid grasp of testing and agile ways of working
FEATURED
Role/Job Title: Solution Consultant - Work Location: Nottingham UK ( 2 to 3 days) Role type Permanent/Fixed Term/Contracting: Contracting - The Role - The Solution Consultant InPhase Implementation leads end-to-end deployment of Ideagen's InPhase platform, translating business requirements into tailored solutions and driving user adoption through training and change management. The role combines business consulting, technical configuration, and stakeholder engagement to ensure successful implementation and maximum value delivery. * Solution Design & Implementation: Lead workshops to capture business requirements, design tailored InPhase solutions, configure modules (governance, risk, compliance, audit, performance), and manage data migration. * Client Engagement & Advisory: Act as the primary contact for customers, advise on best practices, demonstrate product capabil
Role/Job Title: Solution Consultant - Work Location: Nottingham UK ( 2 to 3 days) Role type Permanent/Fixed Term/Contracting: Contracting - The Role - The Solution Consultant InPhase Implementation leads end-to-end deployment of Ideagen's InPhase platform, translating business requirements into tailored solutions and driving user adoption through training and change management. The role combines business consulting, technical configuration, and stakeholder engagement to ensure successful implementation and maximum value delivery. * Solution Design & Implementation: Lead workshops to capture business requirements, design tailored InPhase solutions, configure modules (governance, risk, compliance, audit, performance), and manage data migration. * Client Engagement & Advisory: Act as the primary contact for customers, advise on best practices, demonstrate product capabil
Role/Job Title: Full Stack Developer - Work Location: Manchester - Role Type: Contracting - Mode of Working: Hybrid - If Hybrid, In-Office Days: Tuesday / Wednesday / Thursday - The Role - Looking for a Full Stack Engineer to join the Product Team embracing new ways of working (NWoW) in the UK Personal Investor (UKPI) division. We are rapidly expanding our European technological presence, making this an exciting opportunity to join the team, influence direction, and learn about the Investment Management apparatus. * Work with leading technologies using Angular and AWS. * Use agile methodologies and a continuous delivery pipeline. * Build applications related to client journeys for Transfers & Onboarding across all products (ISA, SIPP, JISA, GA). * Demonstrate self-starter qualities, problem-solving aptitude, and attention to testing and documentation.
Role/Job Title: Full Stack Developer - Work Location: Manchester - Role Type: Contracting - Mode of Working: Hybrid - If Hybrid, In-Office Days: Tuesday / Wednesday / Thursday - The Role - Looking for a Full Stack Engineer to join the Product Team embracing new ways of working (NWoW) in the UK Personal Investor (UKPI) division. We are rapidly expanding our European technological presence, making this an exciting opportunity to join the team, influence direction, and learn about the Investment Management apparatus. * Work with leading technologies using Angular and AWS. * Use agile methodologies and a continuous delivery pipeline. * Build applications related to client journeys for Transfers & Onboarding across all products (ISA, SIPP, JISA, GA). * Demonstrate self-starter qualities, problem-solving aptitude, and attention to testing and documentation.
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
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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