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28 API jobs in West Yorkshire + 20 miles
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Strong experience with REST APIs, Streaming API, CDC, and Platform Events.
Strong experience with REST APIs, Streaming API, CDC, and Platform Events.
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Experience of building useful, robust automated test suite to support a continuous deployment environment, implementing API's for internal and external use.
Experience of building useful, robust automated test suite to support a continuous deployment environment, implementing API's for internal and external use.
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Security & Integration: Strong background in platform security, integration frameworks, and secure API provisioning.
Security & Integration: Strong background in platform security, integration frameworks, and secure API provisioning.
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Contract Backend Engineer
Contract Backend Engineer
BIOMETRIC TALENT
M3, Manchester
£400 per day £400 per day Outside IR35 - Fully Remote role
API Development: Develop and optimize APIs and tools to ensure seamless interaction between our platform and customer systems. * Proficiency in unit, integration, and API testing using Jest. * AWS Services: Lambda, SQS, S3, Cognito, EventBridge, CloudFormation, Fargate, SES, CodeBuild, CodePipeline, CloudFront, API Gateway, and more.
API Development: Develop and optimize APIs and tools to ensure seamless interaction between our platform and customer systems. * Proficiency in unit, integration, and API testing using Jest. * AWS Services: Lambda, SQS, S3, Cognito, EventBridge, CloudFormation, Fargate, SES, CodeBuild, CodePipeline, CloudFront, API Gateway, and more.
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Strong background in API development, cloud adoption frameworks, and modern architectures.
Strong background in API development, cloud adoption frameworks, and modern architectures.
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Microservice and API-led architecture and integration design tools, techniques and best practice. * API Management: Experience in designing and implementing APIs (REST/JSON, SOAP/XML, GraphQL), including API lifecycle management, API gateways, HTTP transport and security such as mTLS, OIDC.
Microservice and API-led architecture and integration design tools, techniques and best practice. * API Management: Experience in designing and implementing APIs (REST/JSON, SOAP/XML, GraphQL), including API lifecycle management, API gateways, HTTP transport and security such as mTLS, OIDC.
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Familiarity with API-first design and OpenAPI documentation
Familiarity with API-first design and OpenAPI documentation
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Experience in API and BDD testing
Experience in API and BDD testing
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Lead Python Software Developer - AI MarTech SaaS- c£90K 4 Day Week
Lead Python Software Developer - AI MarTech SaaS- c£90K 4 Day Week
Recruitment Revolution
LS1, Leeds
Up to £90,000 DOE + Benefits
Ready to build smarter, faster, AI-driven solutions that transform digital marketing? Want a better work-life balance with our groundbreaking 4 day week model? At Ask BOSCO®, we're on a mission to help brands spend smarter with our award-winning predictive analytics platform. As our Lead Software Developer, you won’t just write code - you’ll shape the future of a high-growth MarTech product, lead technical strategy, and work directly with founders, data scientists, and clients to deliver impactful, intelligent solutions. If you're excited by ownership, innovation, and the chance to make a real mark in a scaling business, this is your opportunity - If you’re looking for a role where your voice matters, your technical leadership is valued, and your work directly influences product growth and innovation, we’d love to hear from you. Lead Python Software Developer
Ready to build smarter, faster, AI-driven solutions that transform digital marketing? Want a better work-life balance with our groundbreaking 4 day week model? At Ask BOSCO®, we're on a mission to help brands spend smarter with our award-winning predictive analytics platform. As our Lead Software Developer, you won’t just write code - you’ll shape the future of a high-growth MarTech product, lead technical strategy, and work directly with founders, data scientists, and clients to deliver impactful, intelligent solutions. If you're excited by ownership, innovation, and the chance to make a real mark in a scaling business, this is your opportunity - If you’re looking for a role where your voice matters, your technical leadership is valued, and your work directly influences product growth and innovation, we’d love to hear from you. Lead Python Software Developer
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Lead Full Stack Engineer
Lead Full Stack Engineer
BIOMETRIC TALENT
M3, Manchester
Up to £90,000 per annum up to £90,000 - FULLY REMOTE UK ROLE
Deep expertise in TypeScript, ReactJS, Node.js, and RESTful API development. * Proficient in AWS cloud services especially Lambda, SQS, S3, Cognito, API Gateway, EventBridge, etc.
Deep expertise in TypeScript, ReactJS, Node.js, and RESTful API development. * Proficient in AWS cloud services especially Lambda, SQS, S3, Cognito, API Gateway, EventBridge, etc.
Develop Python scripts, AWS Lambda, and REST API integrations
Develop Python scripts, AWS Lambda, and REST API integrations
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Were looking for a Senior Java Developer for our public sector client based in Leeds on an initial 12-month contract paying up to £700 per day Inside IR35. This role allows hybrid working with an expectation to attend the office 3 days per week. You will need to either hold current BPSS clearance or have the ability to pass it, and be eligible for SC clearance. The successful Senior Java Developer will possess proven skills working with the following * Java 21 (or later) * Test Driven Development (TDD) and Behaviour Driven Development (BDD) * Large microservice architectures * Agile environments and pair programming * Implementing APIs for internal and external use * Building automated test suites in CI/CD environments * Unix/Linux operating systems * Communicating technical concepts to non-technical audiences * Jackson, JAX-RS, Mockito * ActiveMQ or Kafka
Were looking for a Senior Java Developer for our public sector client based in Leeds on an initial 12-month contract paying up to £700 per day Inside IR35. This role allows hybrid working with an expectation to attend the office 3 days per week. You will need to either hold current BPSS clearance or have the ability to pass it, and be eligible for SC clearance. The successful Senior Java Developer will possess proven skills working with the following * Java 21 (or later) * Test Driven Development (TDD) and Behaviour Driven Development (BDD) * Large microservice architectures * Agile environments and pair programming * Implementing APIs for internal and external use * Building automated test suites in CI/CD environments * Unix/Linux operating systems * Communicating technical concepts to non-technical audiences * Jackson, JAX-RS, Mockito * ActiveMQ or Kafka
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Location: Ancoats, M4 5DB - Salary: Up to £30,000 per annum DOE - Our client is a leading platform for connecting customers with reliable, efficient, and professional coach hire services across the UK. Whether it's for private events, corporate transport, school trips, or group travel, their goal is to simplify the booking process and enhance the customer experience through smart technology and dedicated service. They pride themselves on the supportive, inclusive environment of their office. Dog friendly, dressed down, and a little coffee mad, it truly is a unique and welcoming place to work. The Role - Theyre looking for a talented Junior or Mid Level Full-Stack Developer with a passion for solving problems through technology. In this role, youll contribute to building and maintaining digital tools that support everything from customer bookings to operator management
Location: Ancoats, M4 5DB - Salary: Up to £30,000 per annum DOE - Our client is a leading platform for connecting customers with reliable, efficient, and professional coach hire services across the UK. Whether it's for private events, corporate transport, school trips, or group travel, their goal is to simplify the booking process and enhance the customer experience through smart technology and dedicated service. They pride themselves on the supportive, inclusive environment of their office. Dog friendly, dressed down, and a little coffee mad, it truly is a unique and welcoming place to work. The Role - Theyre looking for a talented Junior or Mid Level Full-Stack Developer with a passion for solving problems through technology. In this role, youll contribute to building and maintaining digital tools that support everything from customer bookings to operator management
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Role Title: Software Tester - Duration: 6 month contract - Location: Telford, hybrid 2 days per week onsite - Rate: up to £380 p/d Umbrella inside IR35 - Clearance required: Ideally SC cleared or SC Eligible is required - Role purpose / summary - We are seeking a skilled Software Tester to join our dynamic team. The ideal candidate will have a strong background in software testing and quality assurance, with expertise in Java and related technologies. You will be responsible for designing, implementing, and executing test plans to ensure the quality and functionality of our software products. Key Skills/ requirements - Develop and execute test plans, test cases, and test scripts for Java applications. Perform functional, integration, and regression testing. Collaborate with developers and product managers to understand requirements and design test strategies.
Role Title: Software Tester - Duration: 6 month contract - Location: Telford, hybrid 2 days per week onsite - Rate: up to £380 p/d Umbrella inside IR35 - Clearance required: Ideally SC cleared or SC Eligible is required - Role purpose / summary - We are seeking a skilled Software Tester to join our dynamic team. The ideal candidate will have a strong background in software testing and quality assurance, with expertise in Java and related technologies. You will be responsible for designing, implementing, and executing test plans to ensure the quality and functionality of our software products. Key Skills/ requirements - Develop and execute test plans, test cases, and test scripts for Java applications. Perform functional, integration, and regression testing. Collaborate with developers and product managers to understand requirements and design test strategies.
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Competitive salary dependent on skills and experience and potential for equity participation - Remote ideally commutable to Leeds and London when required - MUST BE BASED IN THE UK - Full Time - We are streamlining business development for dealmakers. About Us - We are on a mission to transform how deals get done. Backed by significant scale-up funding (7-figure+ GBP) and already validated by leading industry organisations, were building the AI-powered platform for modern dealmakers. Were a fast-growing, venture-backed start-up where ideas move quickly from concept to product. Our technology spans backend, frontend, data, and AI, giving our team real scope to shape the future of the product and the company itself. If youre excited by solving complex problems end-to-end, working in a collaborative environment, and having a tangible impact, youll feel at home here. The
Competitive salary dependent on skills and experience and potential for equity participation - Remote ideally commutable to Leeds and London when required - MUST BE BASED IN THE UK - Full Time - We are streamlining business development for dealmakers. About Us - We are on a mission to transform how deals get done. Backed by significant scale-up funding (7-figure+ GBP) and already validated by leading industry organisations, were building the AI-powered platform for modern dealmakers. Were a fast-growing, venture-backed start-up where ideas move quickly from concept to product. Our technology spans backend, frontend, data, and AI, giving our team real scope to shape the future of the product and the company itself. If youre excited by solving complex problems end-to-end, working in a collaborative environment, and having a tangible impact, youll feel at home here. The
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Salesforce Administrator / Developer – Outside IR35 | On-site 5 days
Salesforce Administrator / Developer – Outside IR35 | On-site 5 days
Boost Talent Ltd
BD1, Bradford
From £300 to £350 per day
Contract Opportunity: Salesforce Administrator / Developer Outside IR35 | On-site 5 days per week - An established business is seeking an experienced Salesforce Administrator/Developer for the next phase of its Salesforce journey. The first part of the platform has been built the focus now is working directly with one of the business owners to integrate Salesforce across additional areas of the organisation and take the system to the next level, ensuring maximum value is delivered. * Enhance and expand existing Salesforce functionality. * Design, build, and optimise solutions using Apex, Visualforce, Lightning Components, and Flows. * Integrate Salesforce with third-party applications and internal systems (REST/SOAP APIs, middleware). * Maintain and improve workflows, processes, and data integrity. * Ensure security and compliance best practices are applied.
Contract Opportunity: Salesforce Administrator / Developer Outside IR35 | On-site 5 days per week - An established business is seeking an experienced Salesforce Administrator/Developer for the next phase of its Salesforce journey. The first part of the platform has been built the focus now is working directly with one of the business owners to integrate Salesforce across additional areas of the organisation and take the system to the next level, ensuring maximum value is delivered. * Enhance and expand existing Salesforce functionality. * Design, build, and optimise solutions using Apex, Visualforce, Lightning Components, and Flows. * Integrate Salesforce with third-party applications and internal systems (REST/SOAP APIs, middleware). * Maintain and improve workflows, processes, and data integrity. * Ensure security and compliance best practices are applied.
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Lead Technical Architect
Lead Technical Architect
Department for Work and Pensions (DWP)
Upperthorpe, S3 7UF
From £72,664 to £99,836 per annum plus 28.97% pension contributions
Microservice and API-led architecture and integration design tools, techniques and best practice.
Microservice and API-led architecture and integration design tools, techniques and best practice.
NEWPREMIUM
Lead Technical Architect
Lead Technical Architect
Department for Work and Pensions (DWP)
LS9, Leeds, LS2 7UA
From £72,664 to £99,836 per annum plus 28.97% pension contributions
Microservice and API-led architecture and integration design tools, techniques and best practice.
Microservice and API-led architecture and integration design tools, techniques and best practice.
NEWPREMIUM
Lead Technical Architect
Lead Technical Architect
Department for Work and Pensions (DWP)
M2, Manchester, M2 3AA
From £72,664 to £99,836 per annum plus 28.97% pension contributions
Microservice and API-led architecture and integration design tools, techniques and best practice.
Microservice and API-led architecture and integration design tools, techniques and best practice.
NEWPREMIUM
Microservice and API-led architecture and integration design tools, techniques and best practice.
Microservice and API-led architecture and integration design tools, techniques and best practice.
NEWPREMIUM
Microservice and API-led architecture and integration design tools, techniques and best practice.
Microservice and API-led architecture and integration design tools, techniques and best practice.
NEWPREMIUM
Microservice and API-led architecture and integration design tools, techniques and best practice.
Microservice and API-led architecture and integration design tools, techniques and best practice.
NEWPREMIUM
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Python and/or JavaScript/TypeScript experience, strong AWS skills, Kubernetes, CI/CD, and experience with data platforms, high-volume processing, API development, and Terraform.
Python and/or JavaScript/TypeScript experience, strong AWS skills, Kubernetes, CI/CD, and experience with data platforms, high-volume processing, API development, and Terraform.
Senior Python Developer - AI Analytics SaaS. 4 Day Week. £70-90K
Senior Python Developer - AI Analytics SaaS. 4 Day Week. £70-90K
Recruitment Revolution
LS1, Leeds
£70,000 - £90,000 DOE Plus Benefits
This role is ideal for someone experienced in backend API development and working with modern data infrastructure. Your Expertise: Highly experienced Developer with experience of backend API development and working with modern data infrastructure. • API development with Falcon framework
This role is ideal for someone experienced in backend API development and working with modern data infrastructure. Your Expertise: Highly experienced Developer with experience of backend API development and working with modern data infrastructure. • API development with Falcon framework
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Senior Python Developer - AI Analytics SaaS. 4 Day Week. £70-90K
Senior Python Developer - AI Analytics SaaS. 4 Day Week. £70-90K
Recruitment Revolution
YO1, York
£70,000 - £90,000 DOE + Benefits
This role is ideal for someone experienced in backend API development and working with modern data infrastructure. Your Expertise: Highly experienced Developer with experience of backend API development and working with modern data infrastructure. API development with Falcon framework
This role is ideal for someone experienced in backend API development and working with modern data infrastructure. Your Expertise: Highly experienced Developer with experience of backend API development and working with modern data infrastructure. API development with Falcon framework
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