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41 Contract API jobs in West Yorkshire + 20 miles
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Hands-on experience with REST API design, TDD, and microservices
Hands-on experience with REST API design, TDD, and microservices
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Oversee and coordinate API integrations with HubSpot, finance systems, banking platforms, tenant portals, and BI tools. * Define test scripts for integrations (HubSpot sync, API data flows, reporting pipelines). * Hands-on experience managing API integrations and working with developers on system connectivity.
Oversee and coordinate API integrations with HubSpot, finance systems, banking platforms, tenant portals, and BI tools. * Define test scripts for integrations (HubSpot sync, API data flows, reporting pipelines). * Hands-on experience managing API integrations and working with developers on system connectivity.
NEWFEATURED
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Job Title: Penetration Tester - Location: Leeds (Hybrid; 4 days in office) Job Type: Contract (Inside IR35) Duration: 6 Months Job Summary: Join Tata Consultancy Services (TCS) as a Pen Tester and play a critical role in safeguarding some of the largest and most innovative clients in the UK and worldwide. You'll be part of a purpose-led transformation company, making a meaningful impact through challenging projects that demand ambitious innovation and thought leadership. * Lead client engagements from kickoff through to scoping, penetration testing, and reporting, ensuring delivery within agreed scope and deadlines. * Perform comprehensive penetration testing across networks, web applications, APIs, cloud security, thick client applications, wireless, social engineering, and physical environments.
Job Title: Penetration Tester - Location: Leeds (Hybrid; 4 days in office) Job Type: Contract (Inside IR35) Duration: 6 Months Job Summary: Join Tata Consultancy Services (TCS) as a Pen Tester and play a critical role in safeguarding some of the largest and most innovative clients in the UK and worldwide. You'll be part of a purpose-led transformation company, making a meaningful impact through challenging projects that demand ambitious innovation and thought leadership. * Lead client engagements from kickoff through to scoping, penetration testing, and reporting, ensuring delivery within agreed scope and deadlines. * Perform comprehensive penetration testing across networks, web applications, APIs, cloud security, thick client applications, wireless, social engineering, and physical environments.
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DevOps Software Engineer - Outside IR35 | £550–£650 per day - Elevation Recruitment Group are partnering with a forward-thinking FinTech business who are changing how the financial services industry uses technology. They’re looking for an experienced DevOps Software Engineer to join their high-performing engineering team and play a key role in scaling cloud infrastructure and driving automation across the platform. This is an opportunity to work with cutting-edge tools and modern CI/CD practices in a fast-moving, collaborative environment where innovation is encouraged and ideas are heard. * Design, implement and maintain CI/CD pipelines for microservices and APIs * Support and optimise cloud infrastructure (AWS / Azure / GCP) * Build and manage containerised environments using Docker and Kubernetes * Collaborate closely with developers to streamline code deployment a
DevOps Software Engineer - Outside IR35 | £550–£650 per day - Elevation Recruitment Group are partnering with a forward-thinking FinTech business who are changing how the financial services industry uses technology. They’re looking for an experienced DevOps Software Engineer to join their high-performing engineering team and play a key role in scaling cloud infrastructure and driving automation across the platform. This is an opportunity to work with cutting-edge tools and modern CI/CD practices in a fast-moving, collaborative environment where innovation is encouraged and ideas are heard. * Design, implement and maintain CI/CD pipelines for microservices and APIs * Support and optimise cloud infrastructure (AWS / Azure / GCP) * Build and manage containerised environments using Docker and Kubernetes * Collaborate closely with developers to streamline code deployment a
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Role: Contract Senior Software Engineer - Vue.js - Rate: Negotiable Outside IR35 per day - Location: Leeds - Hybrid (c. 2 days on site) Length: Initial 3 Months, likely to extend - We're partnering with a growing, forward-thinking technology consultancy dedicated to building scalable, reliable, and high-performing digital products that deliver exceptional user experiences. As a Senior Front-End Engineer, you'll play a key role in designing and developing high-quality user interfaces using Vue.js. You'll collaborate closely with designers, product managers, and backend engineers to create performant, maintainable, and visually engaging applications that drive the best possible outcomes for our customers. * Develop and maintain front-end applications using Vue.js (Vue 3 preferred) * Work closely with backend and design teams to deliver features end-to-end
Role: Contract Senior Software Engineer - Vue.js - Rate: Negotiable Outside IR35 per day - Location: Leeds - Hybrid (c. 2 days on site) Length: Initial 3 Months, likely to extend - We're partnering with a growing, forward-thinking technology consultancy dedicated to building scalable, reliable, and high-performing digital products that deliver exceptional user experiences. As a Senior Front-End Engineer, you'll play a key role in designing and developing high-quality user interfaces using Vue.js. You'll collaborate closely with designers, product managers, and backend engineers to create performant, maintainable, and visually engaging applications that drive the best possible outcomes for our customers. * Develop and maintain front-end applications using Vue.js (Vue 3 preferred) * Work closely with backend and design teams to deliver features end-to-end
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£350-£400 per day (inside IR35) - 9 months+ All applicants must hold an active SC clearance. My client is a global leading IT consultancy. They are on the hunt for an SC Cleared Security Tester to join the current test team. Key Duties and Responsibilities * Strong capability to identify security gaps across systems and processes. * Experience creating and applying risk models. * Ability to develop and execute a comprehensive cyber security test strategy. * Strong understanding of Azure security risks, especially related to Azure Storage. * Knowledge of immutable backups and secure data retention strategies. * Experience with disaster recovery planning, including full restore testing. * Expertise in multi-factor authentication (MFA) setup and testing. * Vulnerability management - scanning, prioritisation, remediation validation.
£350-£400 per day (inside IR35) - 9 months+ All applicants must hold an active SC clearance. My client is a global leading IT consultancy. They are on the hunt for an SC Cleared Security Tester to join the current test team. Key Duties and Responsibilities * Strong capability to identify security gaps across systems and processes. * Experience creating and applying risk models. * Ability to develop and execute a comprehensive cyber security test strategy. * Strong understanding of Azure security risks, especially related to Azure Storage. * Knowledge of immutable backups and secure data retention strategies. * Experience with disaster recovery planning, including full restore testing. * Expertise in multi-factor authentication (MFA) setup and testing. * Vulnerability management - scanning, prioritisation, remediation validation.
Role: Contract Senior Backend Software Engineer - Node.js * 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 Backend Software Engineer (Node.js), 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.
Role: Contract Senior Backend Software Engineer - Node.js * 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 Backend Software Engineer (Node.js), 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.
Familiarity with modern architectural patterns (e.g. microservices, event-driven, API-first).
Familiarity with modern architectural patterns (e.g. microservices, event-driven, API-first).
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Solution Architect - Financial Services
Solution Architect - Financial Services
Sanderson Recruitment
West Yorkshire
£550 - £750 per day + Outside IR35 / Fully remote
Familiarity with modern architectural patterns (e.g. microservices, event-driven, API-first).
Familiarity with modern architectural patterns (e.g. microservices, event-driven, API-first).
FEATURED
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oStrong knowledge and working experience with Retrofit for API integration.
oStrong knowledge and working experience with Retrofit for API integration.
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Vice President, Full-Stack Engineer
Vice President, Full-Stack Engineer
The Bank of New York Mellon
Manchester, Greater Manchester
Competitive
In-depth knowledge of REST API principles, HTTP protocol
In-depth knowledge of REST API principles, HTTP protocol
Role Senior Technology Architect Technology Liferay, Java, Spring, REST API Location Leeds Job Description At Infosys, we assure that your career will never stand still, we will inspire you to build whats next and we will navigate further together. * Experience in using API gateway for backend data / services integration to Liferay portal.
Role Senior Technology Architect Technology Liferay, Java, Spring, REST API Location Leeds Job Description At Infosys, we assure that your career will never stand still, we will inspire you to build whats next and we will navigate further together. * Experience in using API gateway for backend data / services integration to Liferay portal.
API Testing: Proficiency in testing RESTful APIs, including authentication, payload validation, and error handling.
API Testing: Proficiency in testing RESTful APIs, including authentication, payload validation, and error handling.
Assist with the creation of, and input into, API documentation used to persist data from the applications
Assist with the creation of, and input into, API documentation used to persist data from the applications
Perform API testing using tools like Postman or REST clients, validating custom connectors and third-party integrations. * Knowledge of API and integration testing using tools such as Postman .
Perform API testing using tools like Postman or REST clients, validating custom connectors and third-party integrations. * Knowledge of API and integration testing using tools such as Postman .
Define and document functional and non-functional requirements, clear acceptance criteria, API integration points and data mapping. * Analyse dependencies, risks and impacts across systems including Salesforce, AWS API and Figaro. * Strong technical understanding of Salesforce, AWS API and core systems (e.g. Figaro), including data structures and integration principles.
Define and document functional and non-functional requirements, clear acceptance criteria, API integration points and data mapping. * Analyse dependencies, risks and impacts across systems including Salesforce, AWS API and Figaro. * Strong technical understanding of Salesforce, AWS API and core systems (e.g. Figaro), including data structures and integration principles.
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API Integration: Implement well-documented, testable APIs that enable seamless platform integration.
API Integration: Implement well-documented, testable APIs that enable seamless platform integration.
Technology Liferay, Java, Spring, REST API * Experience in using API gateway for backend data / services integration to Liferay portal.
Technology Liferay, Java, Spring, REST API * Experience in using API gateway for backend data / services integration to Liferay portal.
Experience with API management and microservices architecture * Microsoft Graph API development
Experience with API management and microservices architecture * Microsoft Graph API development
Own the analysis process for your product or project workstream including, the authoring of good quality user stories, which will contain, business requirements, API integration points, data and data mapping, acceptance criteria, and non-functional requirements * A technical understanding of React, React Native and API integration
Own the analysis process for your product or project workstream including, the authoring of good quality user stories, which will contain, business requirements, API integration points, data and data mapping, acceptance criteria, and non-functional requirements * A technical understanding of React, React Native and API integration
Own the analysis process for your product or project workstream including, the authoring of good quality user stories, which will contain, business requirements, API integration points, data and data mapping, acceptance criteria, and non-functional requirements * A technical understanding of React, React Native and API integration
Own the analysis process for your product or project workstream including, the authoring of good quality user stories, which will contain, business requirements, API integration points, data and data mapping, acceptance criteria, and non-functional requirements * A technical understanding of React, React Native and API integration
Hours - Full-time - Location - Leeds (Hybrid) Department - Research and Development - Salary £30,000 - £40,000 per year - Jaywing, an award-winning marketing agency, is now a proud part of Stubben Edge Group, a cutting-edge fintech innovator. This combination has created a unique powerhouse, blending deep expertise in marketing technology with the dynamic, high-growth world of finance and applied AI. This is an incredibly exciting time to join us. We are at the start of a journey to integrate these two worlds, creating solutions that will redefine both industries. The Opportunity: Work at the Intersection of FinTech, MarTech, and AI - We are looking for two ambitious System Developers to join our Research and Development team. This team forms the critical core of our award-winning Accelerator Lab, placing you at the very heart of our innovation.
Hours - Full-time - Location - Leeds (Hybrid) Department - Research and Development - Salary £30,000 - £40,000 per year - Jaywing, an award-winning marketing agency, is now a proud part of Stubben Edge Group, a cutting-edge fintech innovator. This combination has created a unique powerhouse, blending deep expertise in marketing technology with the dynamic, high-growth world of finance and applied AI. This is an incredibly exciting time to join us. We are at the start of a journey to integrate these two worlds, creating solutions that will redefine both industries. The Opportunity: Work at the Intersection of FinTech, MarTech, and AI - We are looking for two ambitious System Developers to join our Research and Development team. This team forms the critical core of our award-winning Accelerator Lab, placing you at the very heart of our innovation.
Applications are now open for our 2026 Graduate Cohort (Software Engineering)! Ashton Fire is a dynamic and rapidly growing Fire Safety and Engineering Consultancy. Operating from an ethical platform, our social and environmental values are at the core of our organisation and service delivery. We strive to provide the highest quality, morally and ethically balanced service to our clients whilst maintaining a team-focused working environment. * Applications are open until Friday, 5th December 2025 . * All applicants will be contacted with the outcome of their application by Friday, 12th December 2025. * Shortlisted candidates will then be invited to interview in Manchester in January 2026. * Offers will be made to successful candidates by Monday, 26th January 2026 . Our 2026 Graduate Cohort will officially begin on Tuesday, 1st September 2026.
Applications are now open for our 2026 Graduate Cohort (Software Engineering)! Ashton Fire is a dynamic and rapidly growing Fire Safety and Engineering Consultancy. Operating from an ethical platform, our social and environmental values are at the core of our organisation and service delivery. We strive to provide the highest quality, morally and ethically balanced service to our clients whilst maintaining a team-focused working environment. * Applications are open until Friday, 5th December 2025 . * All applicants will be contacted with the outcome of their application by Friday, 12th December 2025. * Shortlisted candidates will then be invited to interview in Manchester in January 2026. * Offers will be made to successful candidates by Monday, 26th January 2026 . Our 2026 Graduate Cohort will officially begin on Tuesday, 1st September 2026.
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Salary: Salary up to £80,000 Location: Manchester - Salary up to £80,000 - Location - Manchester (office-first working policy; office-first to foster collaboration, alignment, and community) Reports to - Development Lead * Technical Leadership and Direction (40%): Set the technical direction for the front-end discipline, ensuring alignment with business objectives and industry best practices. Drive the adoption of new technologies, tools, and methodologies to keep our back-end development at the cutting edge. Collaborate with other principal developers and architects to define and implement scalable, maintainable, and performant front-end architectures. * Software Development (30%): Dive deep into the creation of our SaaS products, working alongside a dynamic, cross-functional team, getting involved in every stage from brainstorming sessions to deployment, ensuring th
Salary: Salary up to £80,000 Location: Manchester - Salary up to £80,000 - Location - Manchester (office-first working policy; office-first to foster collaboration, alignment, and community) Reports to - Development Lead * Technical Leadership and Direction (40%): Set the technical direction for the front-end discipline, ensuring alignment with business objectives and industry best practices. Drive the adoption of new technologies, tools, and methodologies to keep our back-end development at the cutting edge. Collaborate with other principal developers and architects to define and implement scalable, maintainable, and performant front-end architectures. * Software Development (30%): Dive deep into the creation of our SaaS products, working alongside a dynamic, cross-functional team, getting involved in every stage from brainstorming sessions to deployment, ensuring th
BeyondTrust is a place where you can bring your purpose to life through the work that you do, creating a safer world through our cybersecurity SaaS portfolio. Our culture of flexibility, trust, and continual learning means you will be recognized for your growth, and for the impact you make on our success. You will be surrounded by people who challenge, support, and inspire you to be the best version of yourself. The Role - As a Software Development Engineer, you will play a pivotal role in developing our Endpoint Privilege Management Solution for Windows. You will be part of a dynamic team responsible for designing, developing, delivering, and maintaining the solution using cutting-edge technologies. This is an exceptional opportunity for you to be involved in a rapidly evolving and leading-edge domain. What You'll Do
BeyondTrust is a place where you can bring your purpose to life through the work that you do, creating a safer world through our cybersecurity SaaS portfolio. Our culture of flexibility, trust, and continual learning means you will be recognized for your growth, and for the impact you make on our success. You will be surrounded by people who challenge, support, and inspire you to be the best version of yourself. The Role - As a Software Development Engineer, you will play a pivotal role in developing our Endpoint Privilege Management Solution for Windows. You will be part of a dynamic team responsible for designing, developing, delivering, and maintaining the solution using cutting-edge technologies. This is an exceptional opportunity for you to be involved in a rapidly evolving and leading-edge domain. What You'll Do