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        Contract
        98

        5 Contract API jobs in Leeds + 20 miles

        93 exact matches jobs are outside your preferred location

        Data Engineer

        PORTWEST
        Manchester, Greater Manchester
        Competitive
        Working knowledge of Python for automation or data handling (e.g. pandas, basic API calls)
        Working knowledge of Python for automation or data handling (e.g. pandas, basic API calls)
        Work with developers to spec and implement tracking that requires backend/API work. * Attribution modelling, MMM, or incrementality testing experience JavaScript fundamentals, API integrations, CDPs, or marketing data warehouses.
        Work with developers to spec and implement tracking that requires backend/API work. * Attribution modelling, MMM, or incrementality testing experience JavaScript fundamentals, API integrations, CDPs, or marketing data warehouses.
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        As part of the newly formed Customer Experience team, the Customer Interactions Platform Manager will play a pivotal role in accelerating the digital customer and colleague experience at On the Beach. Were On the Beach! Since 2003, we've been rewriting the rules of how people discover, book, and experience their perfect getaway. What started as connecting people to short-haul beach holidays has evolved into something much bigger - premium beach destinations, long-haul adventures, and vibrant city breaks and thats just the beginning of our story. We send around two million holidaymakers on their dream breaks every year. And we're still growing. Powered by our deep-rooted entrepreneurial spirit, proprietary tech, curiosity and our incredible people, were accelerating - delivering best in class technology, the ultimate holiday app, and experiences that keep our customers
        As part of the newly formed Customer Experience team, the Customer Interactions Platform Manager will play a pivotal role in accelerating the digital customer and colleague experience at On the Beach. Were On the Beach! Since 2003, we've been rewriting the rules of how people discover, book, and experience their perfect getaway. What started as connecting people to short-haul beach holidays has evolved into something much bigger - premium beach destinations, long-haul adventures, and vibrant city breaks and thats just the beginning of our story. We send around two million holidaymakers on their dream breaks every year. And we're still growing. Powered by our deep-rooted entrepreneurial spirit, proprietary tech, curiosity and our incredible people, were accelerating - delivering best in class technology, the ultimate holiday app, and experiences that keep our customers
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        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,
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        Software Engineer

        Brand Addition Limited
        Manchester, Greater Manchester
        Competitive
        We are looking for a professional, enthusiastic, and flexible individual with experience of working in a busy office and remote environments. The candidate must have excellent communication skills, able to work well within a team, but also manage their own workload with good time management. We offer a competitive salary and benefits package. Brand Addition is an exciting business to work for and has a leading position in the market of providing creative, cost-effective branded products to some of the worlds most well-known brands. We operate a complex multi-site environment, hosting many different systems which enables us to provide class leading solutions to some the worlds largest companies. The successful candidate will have a desire to go above and beyond, be flexible with out of hours working when needed and be able to travel occasionally to both our UK and non-
        We are looking for a professional, enthusiastic, and flexible individual with experience of working in a busy office and remote environments. The candidate must have excellent communication skills, able to work well within a team, but also manage their own workload with good time management. We offer a competitive salary and benefits package. Brand Addition is an exciting business to work for and has a leading position in the market of providing creative, cost-effective branded products to some of the worlds most well-known brands. We operate a complex multi-site environment, hosting many different systems which enables us to provide class leading solutions to some the worlds largest companies. The successful candidate will have a desire to go above and beyond, be flexible with out of hours working when needed and be able to travel occasionally to both our UK and non-
        more

        Full Stack Developer

        STEM Learning Ltd
        York, North Yorkshire
        £42,000 - £50,000 a year
        Salary: £42,000 to £50,000 per annum Are you a talented Full Stack Developer looking for a role where your work truly matters? STEM Learning is building a modern, in-house engineering team to shape the future of digital education. Join us and help deliver products that make a real difference - like Explorify ( our award-winning Primary Science activity hub. The Role - You'll be joining an ambitious IT team in a well-established business, working directly with the Technical Lead to drive our digital architecture forward. You'll take ownership of front and backend, improving performance and developing features that will drive real growth for STEM Learning. You will work closely with our internal Technical Delivery/Product Team, as well as our Data and Support teams. This is an exciting opportunity to work with a talented team to make real impact to the Education sector.
        Salary: £42,000 to £50,000 per annum Are you a talented Full Stack Developer looking for a role where your work truly matters? STEM Learning is building a modern, in-house engineering team to shape the future of digital education. Join us and help deliver products that make a real difference - like Explorify ( our award-winning Primary Science activity hub. The Role - You'll be joining an ambitious IT team in a well-established business, working directly with the Technical Lead to drive our digital architecture forward. You'll take ownership of front and backend, improving performance and developing features that will drive real growth for STEM Learning. You will work closely with our internal Technical Delivery/Product Team, as well as our Data and Support teams. This is an exciting opportunity to work with a talented team to make real impact to the Education sector.
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        Data Engineer

        PA Consulting Group Holdings Limited
        Manchester, Greater Manchester
        Competitive
        We believe in the power of ingenuity to build a positive human future. As strategies, technologies, and innovation collide, we create opportunity from complexity. Our teams of interdisciplinary experts combine innovative thinking and breakthrough technologies to progress further, faster. Our clients adapt and transform, and together we achieve enduring results. We are over 4,000 strategists, innovators, designers, consultants, digital experts, scientists, engineers, and technologists. And we have deep expertise in consumer and manufacturing, defence and security, energy and utilities, financial services, government and public services, health and life sciences, and transport. Our teams operate globally from offices across the UK, Ireland, US, Nordics, and Netherlands. Bringing Ingenuity to Life. Job description - We challenge where it matters and own the outcome.
        We believe in the power of ingenuity to build a positive human future. As strategies, technologies, and innovation collide, we create opportunity from complexity. Our teams of interdisciplinary experts combine innovative thinking and breakthrough technologies to progress further, faster. Our clients adapt and transform, and together we achieve enduring results. We are over 4,000 strategists, innovators, designers, consultants, digital experts, scientists, engineers, and technologists. And we have deep expertise in consumer and manufacturing, defence and security, energy and utilities, financial services, government and public services, health and life sciences, and transport. Our teams operate globally from offices across the UK, Ireland, US, Nordics, and Netherlands. Bringing Ingenuity to Life. Job description - We challenge where it matters and own the outcome.
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        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.
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        Design, develop, and maintain high-quality Web and API features using languages and frameworks such as C#, .NET, ReactJS, JavaScript, and TypeScript
        Design, develop, and maintain high-quality Web and API features using languages and frameworks such as C#, .NET, ReactJS, JavaScript, and TypeScript
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        • Strong backend engineering background delivering high-scale systems with AI components (Python/Java, RAG frameworks, vector databases, API engineering).
        • Strong backend engineering background delivering high-scale systems with AI components (Python/Java, RAG frameworks, vector databases, API engineering).
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        My client are seeking a JavaDeveloper with strong expertise in Apache Kafka, Node.js, and AWS cloud services. The role involves designing and implementing scalable, event-driven architectures, building microservices, and deploying solutions in a cloud-native environment. Essential Skills & Experience * Strong commercial experience with Java (core + modern frameworks) * Hands-on experience with Node.js * Proven background delivering solutions in AWS environments * Understanding of microservices, APIs and distributed systems * Experience working in Agile / DevOps environments * Familiarity with CI/CD pipelines and cloud-native tooling * Experience with Kafka Desirable * Previous experience working in public-sector or secure environments
        My client are seeking a JavaDeveloper with strong expertise in Apache Kafka, Node.js, and AWS cloud services. The role involves designing and implementing scalable, event-driven architectures, building microservices, and deploying solutions in a cloud-native environment. Essential Skills & Experience * Strong commercial experience with Java (core + modern frameworks) * Hands-on experience with Node.js * Proven background delivering solutions in AWS environments * Understanding of microservices, APIs and distributed systems * Experience working in Agile / DevOps environments * Familiarity with CI/CD pipelines and cloud-native tooling * Experience with Kafka Desirable * Previous experience working in public-sector or secure environments
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        Java Developer 12 month Contract - 1 Stage Interview

        Stealth IT Consulting Limited
        UK
        Up to £400 per day £400 (Inside IR35) Per Day
        Role Overview - We are seeking a skilled Java Developer with strong experience across Java, Node.js, and AWS to support large-scale digital transformation projects within a secure public-sector environment. You will join a collaborative engineering team focused on delivering secure, scalable and high-quality services. Key Responsibilities * Develop, maintain and optimise backend services using Java and Node.js * Build and deploy applications on AWS following best practices * Work within an Agile delivery team, contributing to sprints, ceremonies and code reviews * Collaborate with architects, product owners and other engineers to deliver high-impact features * Ensure code quality, security and performance are upheld * Support CI/CD processes, testing and automation - Essential Skills & Experience * Strong commercial experience with Java (core + modern frameworks)
        Role Overview - We are seeking a skilled Java Developer with strong experience across Java, Node.js, and AWS to support large-scale digital transformation projects within a secure public-sector environment. You will join a collaborative engineering team focused on delivering secure, scalable and high-quality services. Key Responsibilities * Develop, maintain and optimise backend services using Java and Node.js * Build and deploy applications on AWS following best practices * Work within an Agile delivery team, contributing to sprints, ceremonies and code reviews * Collaborate with architects, product owners and other engineers to deliver high-impact features * Ensure code quality, security and performance are upheld * Support CI/CD processes, testing and automation - Essential Skills & Experience * Strong commercial experience with Java (core + modern frameworks)
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        Your new company - One of the largest Public Sector Organisations in the UK managing trade - Your new role - What you'll need to succeed - We are supporting a client in seeking an experienced Quality Assurance (QA) contractor to help design, build, and operationalise robust testing capabilities across our web application stack. You will play a key role in ensuring the reliability, performance, and security of our systems, which include a Django/Wagtail CMS backend, microservices architecture, and a modern JavaScript/CSS frontend. You will develop and execute comprehensive test strategies, covering both manual and automated testing. This is a strategic and technical role, with a strong emphasis on quality uplift, process definition, and knowledge transfer across the team. You will be instrumental in validating deployments across multiple environments, supporting Agile
        Your new company - One of the largest Public Sector Organisations in the UK managing trade - Your new role - What you'll need to succeed - We are supporting a client in seeking an experienced Quality Assurance (QA) contractor to help design, build, and operationalise robust testing capabilities across our web application stack. You will play a key role in ensuring the reliability, performance, and security of our systems, which include a Django/Wagtail CMS backend, microservices architecture, and a modern JavaScript/CSS frontend. You will develop and execute comprehensive test strategies, covering both manual and automated testing. This is a strategic and technical role, with a strong emphasis on quality uplift, process definition, and knowledge transfer across the team. You will be instrumental in validating deployments across multiple environments, supporting Agile
        more
        Job Title: Product Security Architect (Contract) Location: UK-based / Remote - Contract: 3 months initially, Outside IR35 - Why Apply? This is an opportunity to play a key role in shaping Product Security for an international technology organisation. The role offers exposure to a federated environment across multiple business units, providing strategic influence and hands on technical impact. * Define, lead, and evolve a group-wide Product Security and Secure SSDLC strategy across all business units. * Assess current AppSec capabilities, identify gaps, and implement practical, scalable improvements. * Collaborate with Product Architects, engineering, and security teams to integrate security into GitHub, CI/CD pipelines, and development workflows. * Provide architecture guidance and implement secure coding practices, threat modelling, and security tooling.
        Job Title: Product Security Architect (Contract) Location: UK-based / Remote - Contract: 3 months initially, Outside IR35 - Why Apply? This is an opportunity to play a key role in shaping Product Security for an international technology organisation. The role offers exposure to a federated environment across multiple business units, providing strategic influence and hands on technical impact. * Define, lead, and evolve a group-wide Product Security and Secure SSDLC strategy across all business units. * Assess current AppSec capabilities, identify gaps, and implement practical, scalable improvements. * Collaborate with Product Architects, engineering, and security teams to integrate security into GitHub, CI/CD pipelines, and development workflows. * Provide architecture guidance and implement secure coding practices, threat modelling, and security tooling.
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        Software Engineer

        Harvey Nash
        UK
        £375.00 - £400.00 per day + Outside IR35
        Role: Developer - Tech Stack: .NET, C#, AWS, MongoDB - IR35 Status: Outside IR35 - Day Rate: £400.00 - Location: Remote - Contract Length: 3 Months (highly likely to extend to 6 Months+) Start Date: Immediate - We are seeking a Developer to join the agile delivery team supporting the development of a major government digital platform. You will be responsible for developing secure, performant, and maintainable features, working across both front-end and back-end elements of the system. This role is suitable for developers with a strong foundation in .NET and cloud-native engineering, and offers scope to grow technical ownership within a supportive, delivery-focused team. You'll be working in an environment that values collaboration, learning, and continuous improvement. Key Responsibilities * Design, build, test, and deploy robust software components using modern devel
        Role: Developer - Tech Stack: .NET, C#, AWS, MongoDB - IR35 Status: Outside IR35 - Day Rate: £400.00 - Location: Remote - Contract Length: 3 Months (highly likely to extend to 6 Months+) Start Date: Immediate - We are seeking a Developer to join the agile delivery team supporting the development of a major government digital platform. You will be responsible for developing secure, performant, and maintainable features, working across both front-end and back-end elements of the system. This role is suitable for developers with a strong foundation in .NET and cloud-native engineering, and offers scope to grow technical ownership within a supportive, delivery-focused team. You'll be working in an environment that values collaboration, learning, and continuous improvement. Key Responsibilities * Design, build, test, and deploy robust software components using modern devel
        more
        Role Overview - We are seeking an experienced Scala Developer to join a dynamic team working on high-impact projects. The ideal candidate will have strong expertise in Scala and Play Framework, with a passion for building robust, scalable backend services and APIs. This is a fully remote contract role with an immediate start. Key Responsibilities * Design, develop, and maintain backend services and APIs using Scala and Play Framework. * Implement RESTful endpoints, manage request/response lifecycle, and handle authentication/authorization flows. * Write clean, idiomatic Scala code and apply functional programming principles where appropriate. * Develop and maintain automated tests (unit and integration) and support test automation initiatives. * Collaborate with product owners, UX designers, QA, and other engineers in an Agile environment (Scrum/Kanban).
        Role Overview - We are seeking an experienced Scala Developer to join a dynamic team working on high-impact projects. The ideal candidate will have strong expertise in Scala and Play Framework, with a passion for building robust, scalable backend services and APIs. This is a fully remote contract role with an immediate start. Key Responsibilities * Design, develop, and maintain backend services and APIs using Scala and Play Framework. * Implement RESTful endpoints, manage request/response lifecycle, and handle authentication/authorization flows. * Write clean, idiomatic Scala code and apply functional programming principles where appropriate. * Develop and maintain automated tests (unit and integration) and support test automation initiatives. * Collaborate with product owners, UX designers, QA, and other engineers in an Agile environment (Scrum/Kanban).
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        What is the average salary for API in Leeds?

        Average salary per year
        £47,499

        The average salary for a API in Leeds is £47,499. API in Leeds salaries range from £37,499 to £57,499.

        Frequently Asked Questions

        How many contract API jobs are there in Leeds?
        There are 5 contract API jobs within 20 miles of Leeds available on CWJobs right now.

        What other similar jobs are there to contract API jobs in Leeds?
        As well as contract API jobs in Leeds, you can find contract Qa Automation, Quality Assurance, QA Analyst, amongst many others.