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        20 Contract API jobs in Stewartby + 20 miles

        280 exact matches jobs are outside your preferred location

        Staff Application Engineer

        GlaxoSmithKline
        London
        Competitive
        The Onyx Research Data Tech organization represents a major investment by GSK R&D and Digital & Tech, designed to deliver a step-change in our ability to leverage data, knowledge, and prediction to find new medicines. * Building a next-generation data experience for GSKs scientists, engineers, and decision-makers, increasing productivity and reducing time spent on data mechanics * Providing best-in-class AI/ML and data analysis environments to accelerate our predictive capabilities and attract top-tier talent * Aggressively engineering our data at scale to unlock the value of our combined data assets * Implementing scientific technology products that leverage the data and capabilities provisioned by Onyx - As a Staff Application Engineer (Individual Contributor), you are a highly experienced technical leader who delivers high-impact engineering outcomes across multipl
        The Onyx Research Data Tech organization represents a major investment by GSK R&D and Digital & Tech, designed to deliver a step-change in our ability to leverage data, knowledge, and prediction to find new medicines. * Building a next-generation data experience for GSKs scientists, engineers, and decision-makers, increasing productivity and reducing time spent on data mechanics * Providing best-in-class AI/ML and data analysis environments to accelerate our predictive capabilities and attract top-tier talent * Aggressively engineering our data at scale to unlock the value of our combined data assets * Implementing scientific technology products that leverage the data and capabilities provisioned by Onyx - As a Staff Application Engineer (Individual Contributor), you are a highly experienced technical leader who delivers high-impact engineering outcomes across multipl
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        At Mace, our purpose is to redefine the boundaries of ambition. We believe in creating places that are responsible, bringing transformative impact to our people, communities and societies across the globe. To learn more about our purpose, culture and priorities, visit our strategy site. Within our consult business, we harness our unique combination of leading-edge practical expertise and project delivery consultancy to unlock the potential in every project. * Safety first - Going home safe and well. * Client focus - Deliver on our promise. * Integrity - Always do the right thing. * Create opportunity - for our people to excel. The role is for a developer specialising in the Microsoft Power platform technology stack (SharePoint Online, Power Apps, Power Automate and Power Pages). It is a client-facing role supporting fee-earning projects and programmes.
        At Mace, our purpose is to redefine the boundaries of ambition. We believe in creating places that are responsible, bringing transformative impact to our people, communities and societies across the globe. To learn more about our purpose, culture and priorities, visit our strategy site. Within our consult business, we harness our unique combination of leading-edge practical expertise and project delivery consultancy to unlock the potential in every project. * Safety first - Going home safe and well. * Client focus - Deliver on our promise. * Integrity - Always do the right thing. * Create opportunity - for our people to excel. The role is for a developer specialising in the Microsoft Power platform technology stack (SharePoint Online, Power Apps, Power Automate and Power Pages). It is a client-facing role supporting fee-earning projects and programmes.
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        At Mace, our purpose is to redefine the boundaries of ambition. We believe in creating places that are responsible, bringing transformative impact to our people, communities and societies across the globe. To learn more about our purpose, culture and priorities, visit our strategy site. Within our consult business, we harness our unique combination of leading-edge practical expertise and project delivery consultancy to unlock the potential in every project. * Safety first - Going home safe and well. * Client focus - Deliver on our promise. * Integrity - Always do the right thing. * Create opportunity - for our people to excel. The role is for a developer specialising in the Microsoft Power platform technology stack (SharePoint Online, Power Apps, Power Automate and Power Pages). It is a client-facing role supporting fee-earning projects and programmes.
        At Mace, our purpose is to redefine the boundaries of ambition. We believe in creating places that are responsible, bringing transformative impact to our people, communities and societies across the globe. To learn more about our purpose, culture and priorities, visit our strategy site. Within our consult business, we harness our unique combination of leading-edge practical expertise and project delivery consultancy to unlock the potential in every project. * Safety first - Going home safe and well. * Client focus - Deliver on our promise. * Integrity - Always do the right thing. * Create opportunity - for our people to excel. The role is for a developer specialising in the Microsoft Power platform technology stack (SharePoint Online, Power Apps, Power Automate and Power Pages). It is a client-facing role supporting fee-earning projects and programmes.
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        What if the work you did every day could impact the lives of people you know? Or all of humanity? At Illumina, we are expanding access to genomic technology to realize health equity for billions of people around the world. Our efforts enable life-changing discoveries that are transforming human health through the early detection and diagnosis of diseases and new treatment options for patients. Working at Illumina means being part of something bigger than yourself. Every person, in every role, has the opportunity to make a difference. Surrounded by extraordinary people, inspiring leaders, and world changing projects, you will do more and become more than you ever thought possible. Illumina Lab Services (ILS) has an exciting opportunity for an experienced software engineer to join the software and test team.
        What if the work you did every day could impact the lives of people you know? Or all of humanity? At Illumina, we are expanding access to genomic technology to realize health equity for billions of people around the world. Our efforts enable life-changing discoveries that are transforming human health through the early detection and diagnosis of diseases and new treatment options for patients. Working at Illumina means being part of something bigger than yourself. Every person, in every role, has the opportunity to make a difference. Surrounded by extraordinary people, inspiring leaders, and world changing projects, you will do more and become more than you ever thought possible. Illumina Lab Services (ILS) has an exciting opportunity for an experienced software engineer to join the software and test team.
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        Lead Software Engineer

        ByteHire
        Elstree, Borehamwood (WD6)
        Up to £110,000 per annum
        PHP Engineering Lead - Working Hours: Full time - Job Type: Permanent - Permanent Salary: £110,000 (negotiable dependent on experience) Location: Hybrid: minimum 2 days per week at our clients Elstree / Kings Cross offices - Our client is a forward-thinking technology organisation reshaping how creative products are produced and delivered. Their platform connects a global network of industry partners while empowering independent artists with scalable, accessible tools. As demand grows, the company is rapidly expanding its platform and infrastructure to support increasing global scale. Our client is seeking a PHP Engineering Lead to balance approximately 50% hands-on engineering with 50% leadership, architecture, and team development. This role requires someone who can bring structure, clarity, and technical direction to a growing engineering function.
        PHP Engineering Lead - Working Hours: Full time - Job Type: Permanent - Permanent Salary: £110,000 (negotiable dependent on experience) Location: Hybrid: minimum 2 days per week at our clients Elstree / Kings Cross offices - Our client is a forward-thinking technology organisation reshaping how creative products are produced and delivered. Their platform connects a global network of industry partners while empowering independent artists with scalable, accessible tools. As demand grows, the company is rapidly expanding its platform and infrastructure to support increasing global scale. Our client is seeking a PHP Engineering Lead to balance approximately 50% hands-on engineering with 50% leadership, architecture, and team development. This role requires someone who can bring structure, clarity, and technical direction to a growing engineering function.
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        TypeScript Developer Node AWS

        Client Server
        Shoreditch, East London (E1), EC2A
        £78000 - £85000 per annum + benefits
        TypeScript Developer / Backend Software Engineer (Node AWS Python) Remote to £85k - Are you a backend focussed TypeScript Developer looking for an opportunity to progress your career, whilst working remotely on a modern tech stack? You could be joining a scaling AI software solutions provider in a senior, hands-on role. As a TypeScript Developer you will build new features with a focus on backend services and APIs using TypeScript, Node and AWS, also with some Python work for LLM integration. You'll take ownership of projects, working across the full development lifecycle from requirements through to delivery and help to drive the adoption of AI within the development lifecycle. There's a remote first policy so you can work from home on a fulltime basis with the caveat that you'll meet up with the team in London once a month (expenses paid); there's also flexible work
        TypeScript Developer / Backend Software Engineer (Node AWS Python) Remote to £85k - Are you a backend focussed TypeScript Developer looking for an opportunity to progress your career, whilst working remotely on a modern tech stack? You could be joining a scaling AI software solutions provider in a senior, hands-on role. As a TypeScript Developer you will build new features with a focus on backend services and APIs using TypeScript, Node and AWS, also with some Python work for LLM integration. You'll take ownership of projects, working across the full development lifecycle from requirements through to delivery and help to drive the adoption of AI within the development lifecycle. There's a remote first policy so you can work from home on a fulltime basis with the caveat that you'll meet up with the team in London once a month (expenses paid); there's also flexible work
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        PREMIUM

        Software Engineer

        Spectrum It Recruitment Limited
        Aylesbury (HP17)
        £50000 - £55000 per annum + plus benefits
        GoLang, JavaScript, Linux, hardware - In office location of Aylesbury, Buckinghamshire. Some flex on hybird working. - Salary circa £50,000 - £55,000 plus benefits - Technology provider of secure identity, access, and authentication solutions. My client build high-performance software and hardware systems that support mission-critical identity operations. The engineering team works across embedded systems, backend services, and security infrastructure to deliver reliable, scalable products. Role Overview - You will be a versatile Software Engineer with strong experience in Go (Golang), JavaScript, Linux environments, and hardware configuration. The ideal candidate is comfortable working across the full stack-from backend services to device-level integration-and enjoys solving complex problems in a fast-paced, product-focused environment. Key Responsibilities
        GoLang, JavaScript, Linux, hardware - In office location of Aylesbury, Buckinghamshire. Some flex on hybird working. - Salary circa £50,000 - £55,000 plus benefits - Technology provider of secure identity, access, and authentication solutions. My client build high-performance software and hardware systems that support mission-critical identity operations. The engineering team works across embedded systems, backend services, and security infrastructure to deliver reliable, scalable products. Role Overview - You will be a versatile Software Engineer with strong experience in Go (Golang), JavaScript, Linux environments, and hardware configuration. The ideal candidate is comfortable working across the full stack-from backend services to device-level integration-and enjoys solving complex problems in a fast-paced, product-focused environment. Key Responsibilities
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        About Revolut - People deserve more from their money. More visibility, more control, and more freedom. Since 2015, Revolut has been on a mission to deliver just that. Our powerhouse of products including spending, saving, investing, exchanging, travelling, and more help our 65+ million customers get more from their money every day. As we continue our lightning-fast growth,? 2 things are essential to our success: our people and our culture. In recognition of our outstanding employee experience, we've been certified as a Great Place to Work. So far, we have 10,000+ people working around the world, from our offices and remotely, to help us achieve our mission. And we're looking for more brilliant people. People who love building great products, redefining success, and turning the complexity of a chaotic world into the simplicity of a beautiful solution. About the role
        About Revolut - People deserve more from their money. More visibility, more control, and more freedom. Since 2015, Revolut has been on a mission to deliver just that. Our powerhouse of products including spending, saving, investing, exchanging, travelling, and more help our 65+ million customers get more from their money every day. As we continue our lightning-fast growth,? 2 things are essential to our success: our people and our culture. In recognition of our outstanding employee experience, we've been certified as a Great Place to Work. So far, we have 10,000+ people working around the world, from our offices and remotely, to help us achieve our mission. And we're looking for more brilliant people. People who love building great products, redefining success, and turning the complexity of a chaotic world into the simplicity of a beautiful solution. About the role
        more
        At Goldman Sachs, our Engineers dont just make things we make things possible. Change the world by connecting people and capital with ideas. Solve the most challenging and pressing engineering problems for our clients. Join our engineering teams that build massively scalable software and systems, architect low latency infrastructure solutions, proactively guard against cyber threats, and leverage machine learning alongside financial engineering to continuously turn data into action. Create new businesses, transform finance, and explore a world of opportunity at the speed of markets. Goldman Sachs Engineers are innovators and problem-solvers, building solutions in risk management, big data, mobile and more. We look for creative collaborators who evolve, adapt to change and thrive in a fast-paced global environment. Want to push the limit of digital possibilities? Start
        At Goldman Sachs, our Engineers dont just make things we make things possible. Change the world by connecting people and capital with ideas. Solve the most challenging and pressing engineering problems for our clients. Join our engineering teams that build massively scalable software and systems, architect low latency infrastructure solutions, proactively guard against cyber threats, and leverage machine learning alongside financial engineering to continuously turn data into action. Create new businesses, transform finance, and explore a world of opportunity at the speed of markets. Goldman Sachs Engineers are innovators and problem-solvers, building solutions in risk management, big data, mobile and more. We look for creative collaborators who evolve, adapt to change and thrive in a fast-paced global environment. Want to push the limit of digital possibilities? Start
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        Senior Technical Specialist

        Zensar Technologies
        London
        From £61,750 to £65,000 per annum
        Qualification:Must be educated to at least degree level or equivalent. Zensar is a leading digital solutions and technology services company that specialises in partnering with global organisations across industries in their Digital Transformation journey. Zensars Return on Digital strategy has enabled customers to look beyond current investments towards realising visible business benefits in their digital transformation journey. If youre looking for a workplace where associates realise and contribute to their full potential, are recognised for the impact they make, and enjoy the company of the people they work with, then youve come to the right place! As the Senior Technical Specialist you would be accountable for the successful delivery and ongoing optimisation of Salesforce solutions across the organisation.
        Qualification:Must be educated to at least degree level or equivalent. Zensar is a leading digital solutions and technology services company that specialises in partnering with global organisations across industries in their Digital Transformation journey. Zensars Return on Digital strategy has enabled customers to look beyond current investments towards realising visible business benefits in their digital transformation journey. If youre looking for a workplace where associates realise and contribute to their full potential, are recognised for the impact they make, and enjoy the company of the people they work with, then youve come to the right place! As the Senior Technical Specialist you would be accountable for the successful delivery and ongoing optimisation of Salesforce solutions across the organisation.
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        Senior Software Engineer - Unified Client Experience (UCX)

        Hargreaves Lansdown
        London
        £75000 - £95000 per annum + Generous bonus, pension, PMI & more
        About HL and the opportunity. We're building the next generation platform for one of the UK's largest financial services companies, trusted by over 2 million clients and managing c.£150 billion in assets. This is your opportunity to shape technology that will redefine how people invest and achieve financial freedom. You will build our next generation Unified Client Experience (UCX) frontend that will streamline client journeys across a range of products and services, in both web and mobile domains. It's an opportunity to design, architect and build a modern frontend using latest technologies and best practices to transform our savings and investment platform. The UCX team consolidates the efforts of the whole organisation, transforming client journeys and delivering on HL's vision to give people financial freedom.
        About HL and the opportunity. We're building the next generation platform for one of the UK's largest financial services companies, trusted by over 2 million clients and managing c.£150 billion in assets. This is your opportunity to shape technology that will redefine how people invest and achieve financial freedom. You will build our next generation Unified Client Experience (UCX) frontend that will streamline client journeys across a range of products and services, in both web and mobile domains. It's an opportunity to design, architect and build a modern frontend using latest technologies and best practices to transform our savings and investment platform. The UCX team consolidates the efforts of the whole organisation, transforming client journeys and delivering on HL's vision to give people financial freedom.
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        FEATURED
        We are looking for the right people people who want to innovate, achieve, grow and lead. We attract and retain the best talent by investing in our employees and empowering them to develop themselves and their careers. Experience the challenges, rewards and opportunity of working for one of the worlds largest providers of products and services to the global energy industry. Job Duties - We are seeking a skilled and proactive Data Integration Engineer to join the Neftex Technical Services team. Reporting to the Team Lead the Data Integration Engineer will be responsible for designing, building, and maintaining robust data pipelines and integration frameworks that connect diverse systems including LLMs and a proprietary Data Integration solution. Successful candidates will be evidently enthusiastic and motivated people who we can train up in our processes and ultimately
        We are looking for the right people people who want to innovate, achieve, grow and lead. We attract and retain the best talent by investing in our employees and empowering them to develop themselves and their careers. Experience the challenges, rewards and opportunity of working for one of the worlds largest providers of products and services to the global energy industry. Job Duties - We are seeking a skilled and proactive Data Integration Engineer to join the Neftex Technical Services team. Reporting to the Team Lead the Data Integration Engineer will be responsible for designing, building, and maintaining robust data pipelines and integration frameworks that connect diverse systems including LLMs and a proprietary Data Integration solution. Successful candidates will be evidently enthusiastic and motivated people who we can train up in our processes and ultimately
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        About Revolut - People deserve more from their money. More visibility, more control, and more freedom. Since 2015, Revolut has been on a mission to deliver just that. Our powerhouse of products including spending, saving, investing, exchanging, travelling, and more help our 65+ million customers get more from their money every day. As we continue our lightning-fast growth,? 2 things are essential to our success: our people and our culture. In recognition of our outstanding employee experience, we've been certified as a Great Place to Work. So far, we have 10,000+ people working around the world, from our offices and remotely, to help us achieve our mission. And we're looking for more brilliant people. People who love building great products, redefining success, and turning the complexity of a chaotic world into the simplicity of a beautiful solution.
        About Revolut - People deserve more from their money. More visibility, more control, and more freedom. Since 2015, Revolut has been on a mission to deliver just that. Our powerhouse of products including spending, saving, investing, exchanging, travelling, and more help our 65+ million customers get more from their money every day. As we continue our lightning-fast growth,? 2 things are essential to our success: our people and our culture. In recognition of our outstanding employee experience, we've been certified as a Great Place to Work. So far, we have 10,000+ people working around the world, from our offices and remotely, to help us achieve our mission. And we're looking for more brilliant people. People who love building great products, redefining success, and turning the complexity of a chaotic world into the simplicity of a beautiful solution.
        more
        Description and requirements - Skanska, one of the worlds leading project development and construction groups, is an inclusive and responsible business that is helping to build a better society. We are looking for a Head of Data & Analytics to join our Technology & Sustainability team in Leavesden (Watford). The Head of Data Analytics will be responsible for setting the strategic direction, governance, and delivery of data capabilities across the organisation. * Be accountable for defining and executing the organisations data and analytics strategy, aligning it with business priorities and regulatory requirements. * Lead the Data Analytics and Engineering function, ensuring seamless collaboration across Analysts, Engineers, Architects, and Governance specialists, and preparing for the future integration of Data Science.
        Description and requirements - Skanska, one of the worlds leading project development and construction groups, is an inclusive and responsible business that is helping to build a better society. We are looking for a Head of Data & Analytics to join our Technology & Sustainability team in Leavesden (Watford). The Head of Data Analytics will be responsible for setting the strategic direction, governance, and delivery of data capabilities across the organisation. * Be accountable for defining and executing the organisations data and analytics strategy, aligning it with business priorities and regulatory requirements. * Lead the Data Analytics and Engineering function, ensuring seamless collaboration across Analysts, Engineers, Architects, and Governance specialists, and preparing for the future integration of Data Science.
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        Date Posted: 11/12/2025 - Location: London - Job Type: Full time - Marketing Automation Executive (FTC) London / Reigate - We have an exciting opportunity to join our Marketing Automation team, as a Marketing Automation Executive on a 15 month FTC. We are looking for someone with experience in Microsoft Dynamics 365 ecosystem, to be hands on in our development and execution and optimisation of automated marketing campaigns that drive engagement, generate leads, and support the overall customer lifecycle - Please note: The is role will be initially Reigate based but will then move to our London office in Q2 2026 - About Just - We help people achieve a better later life. Thats our purpose and its the reason we exist. We are a fast-growing company helping customers enjoy the retirement they deserve. We do this through a variety of market leading, award-winning products a
        Date Posted: 11/12/2025 - Location: London - Job Type: Full time - Marketing Automation Executive (FTC) London / Reigate - We have an exciting opportunity to join our Marketing Automation team, as a Marketing Automation Executive on a 15 month FTC. We are looking for someone with experience in Microsoft Dynamics 365 ecosystem, to be hands on in our development and execution and optimisation of automated marketing campaigns that drive engagement, generate leads, and support the overall customer lifecycle - Please note: The is role will be initially Reigate based but will then move to our London office in Q2 2026 - About Just - We help people achieve a better later life. Thats our purpose and its the reason we exist. We are a fast-growing company helping customers enjoy the retirement they deserve. We do this through a variety of market leading, award-winning products a
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        Spalding, Lincolnshire - 2 days on-site £Competitive + Hybrid Working + Development Opportunities - This is an excellent opportunity for an experienced React Native Developer to join a business at an exciting time of growth. This role offers a varied and interesting position where you will have the freedom to work on bespoke mobile applications. This company is a digital transformation company specialising in bespoke software development, legacy system support, and enterprise applications for a diverse range of clients. In this varied role you will design, develop, and maintain cross-platform mobile applications using React Native, implement clean and scalable code using TypeScript and JavaScript, integrate REST APIs and native modules, while contributing to planning and code reviews, and ensure adherence to security standards using Git-based workflows and CI/CD.
        Spalding, Lincolnshire - 2 days on-site £Competitive + Hybrid Working + Development Opportunities - This is an excellent opportunity for an experienced React Native Developer to join a business at an exciting time of growth. This role offers a varied and interesting position where you will have the freedom to work on bespoke mobile applications. This company is a digital transformation company specialising in bespoke software development, legacy system support, and enterprise applications for a diverse range of clients. In this varied role you will design, develop, and maintain cross-platform mobile applications using React Native, implement clean and scalable code using TypeScript and JavaScript, integrate REST APIs and native modules, while contributing to planning and code reviews, and ensure adherence to security standards using Git-based workflows and CI/CD.
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        Pen Tester

        Stackstudio Digital Ltd.
        Reading (RG1)
        From £400 to £410 per day
        Role/Job Title:Pen Tester - Work Location: Reading (3days) The Role - We're looking for a Security Consultant / Senior Security Consultant with expertise in penetration testing. As part of our Cyber Security team, you shall perform penetration testing which includes internet, intranet, wireless, web application, social engineering and physical penetration testing. You shall also perform in-depth analysis of penetration testing results and create a report that describes findings, exploitation procedures, risks and recommendations. Please include a brief outline of the impact this role will have, including overview of customer industry and projects, access to cutting-edge technology etc. Do NOT include customer name. Your Responsibilities (Up to 10, avoiding repetition) * Lead engagements from kickoff with clients through scoping engagements, penetration testing and rep
        Role/Job Title:Pen Tester - Work Location: Reading (3days) The Role - We're looking for a Security Consultant / Senior Security Consultant with expertise in penetration testing. As part of our Cyber Security team, you shall perform penetration testing which includes internet, intranet, wireless, web application, social engineering and physical penetration testing. You shall also perform in-depth analysis of penetration testing results and create a report that describes findings, exploitation procedures, risks and recommendations. Please include a brief outline of the impact this role will have, including overview of customer industry and projects, access to cutting-edge technology etc. Do NOT include customer name. Your Responsibilities (Up to 10, avoiding repetition) * Lead engagements from kickoff with clients through scoping engagements, penetration testing and rep
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        Location/s: London - Recruiter contact: Nikki George - Mott MacDonald is a global engineering, management, and development consultancy with over 20,000 employees across more than 50 countries and 140+ offices. We work across incredible global industries, delivering exciting work that is defining our future and making an important societal impact in the communities we serve. Our people power our performance we succeed when they do. With countless opportunities to collaborate, learn, and grow, the possibilities for excellence are as varied as every individual. Whether you want to grow as a subject matter expert or broaden your experience with roles across our international community, youre surrounded by global specialists who want to combine their expertise and champion you to be your best. As a proudly employee-owned business, we benefit our clients, our communities, a
        Location/s: London - Recruiter contact: Nikki George - Mott MacDonald is a global engineering, management, and development consultancy with over 20,000 employees across more than 50 countries and 140+ offices. We work across incredible global industries, delivering exciting work that is defining our future and making an important societal impact in the communities we serve. Our people power our performance we succeed when they do. With countless opportunities to collaborate, learn, and grow, the possibilities for excellence are as varied as every individual. Whether you want to grow as a subject matter expert or broaden your experience with roles across our international community, youre surrounded by global specialists who want to combine their expertise and champion you to be your best. As a proudly employee-owned business, we benefit our clients, our communities, a
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        Pantheon has been at the forefront of private markets investing for more than 40 years, earning a reputation for providing innovative solutions covering the full lifecycle of investments, from primary fund commitments to co-investments and secondary purchases, across private equity, real assets and private credit. We have partnered with more than 650 clients, including institutional investors of all sizes as well as a growing number of private wealth advisers and investors, with approximately $65bn in discretionary assets under management (as of December 31, 2023). Leveraging our specialized experience and global team of professionals across Europe, the Americas and Asia, we invest with purpose and lead with expertise to build secure financial futures. For further details please visit - Purpose of Position
        Pantheon has been at the forefront of private markets investing for more than 40 years, earning a reputation for providing innovative solutions covering the full lifecycle of investments, from primary fund commitments to co-investments and secondary purchases, across private equity, real assets and private credit. We have partnered with more than 650 clients, including institutional investors of all sizes as well as a growing number of private wealth advisers and investors, with approximately $65bn in discretionary assets under management (as of December 31, 2023). Leveraging our specialized experience and global team of professionals across Europe, the Americas and Asia, we invest with purpose and lead with expertise to build secure financial futures. For further details please visit - Purpose of Position
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        SwiftUI Mobile App Lead Developer - Leicestershire

        Mapp UK Ltd
        Leicester (LE3)
        From £62,000 to £70,000 per annum basic + bonus, pension,. share optio
        Salary - £62K - £70K basic + Annual Bonus + Share Option + Pension + other great benefits - A new and exciting role for a Mobile App Lead Developer with a strong technical background in developing Apple ecosystem customer facing iOS apps in Swift to join one of the UK's leading FTSE100 companies. Our client has re-written their mobile app using Swift 6 in iOS 26 Liquid Glass using brand new code. You will lead and mentor a team of up to 10 experienced developers and work alongside the architects in improving the App, delivery metrics and KPI's. * Technical Proficiency: Demonstrable experience in building robust iOS applications using Swift 5 or Swift 6 and SwiftUI ((experience with Swift 6 language. iOS 18 and above) with familiarity with the Apple ecosystem. * Analytical & Problem Solving Skills: Ability to troubleshoot, optimise application performance, and resolve
        Salary - £62K - £70K basic + Annual Bonus + Share Option + Pension + other great benefits - A new and exciting role for a Mobile App Lead Developer with a strong technical background in developing Apple ecosystem customer facing iOS apps in Swift to join one of the UK's leading FTSE100 companies. Our client has re-written their mobile app using Swift 6 in iOS 26 Liquid Glass using brand new code. You will lead and mentor a team of up to 10 experienced developers and work alongside the architects in improving the App, delivery metrics and KPI's. * Technical Proficiency: Demonstrable experience in building robust iOS applications using Swift 5 or Swift 6 and SwiftUI ((experience with Swift 6 language. iOS 18 and above) with familiarity with the Apple ecosystem. * Analytical & Problem Solving Skills: Ability to troubleshoot, optimise application performance, and resolve
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        Full Stack Developer

        Unipart
        Nuneaton, Warwickshire
        £35000 - £40000 per annum
        Location: Hybrid - Nuneaton and Remote - Contract Type: Permanent - Hours: Full time, 40 hours per week, Monday to Friday - Salary: £35,000-£40,000 per annum DOE, plus car / car allowance - Benefits:33 days holiday, pension, life assurance, employee assistance programme, wellbeing support, and flexible benefits scheme - About the Job - Youll have an important part to play delivering high quality features and seamless integrations across our enterprise web platforms. Here at Unipart we dont just have a way of working, we have The Unipart Way. It allows everyone in our team to pursue their own personal and professional goals to a world class level, through Unipart's From Gate to Great training and development program. As a Full Stack Developer, you will own the day-to-day maintenance, uphold strict security, performance, and reliability standards, and actively develop p
        Location: Hybrid - Nuneaton and Remote - Contract Type: Permanent - Hours: Full time, 40 hours per week, Monday to Friday - Salary: £35,000-£40,000 per annum DOE, plus car / car allowance - Benefits:33 days holiday, pension, life assurance, employee assistance programme, wellbeing support, and flexible benefits scheme - About the Job - Youll have an important part to play delivering high quality features and seamless integrations across our enterprise web platforms. Here at Unipart we dont just have a way of working, we have The Unipart Way. It allows everyone in our team to pursue their own personal and professional goals to a world class level, through Unipart's From Gate to Great training and development program. As a Full Stack Developer, you will own the day-to-day maintenance, uphold strict security, performance, and reliability standards, and actively develop p
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        FEATURED

        Senior DeFi Backend Engineer

        Plexus Resource Solutions Ltd
        City of London (EC1)
        Up to £175,000 per annum
        DeFi - Remote - Upto€200k+ Tokens - Plexus is partnering with a long-standing DeFi protocol building a next-generation trading platform. Theyre pioneering a new model for automated strategies and and are now looking for a Senior DeFi Backend Engineer to help build the core systems powering it. Youll join a highly technical team working across general backend systems engineering along with apis, optimising the application for performance, arbitrage bots and more. 3+ years experience with backend Python : Including async systems, data pipelines, or protocol-level integrations. 1+ year of recent Rust experience : With the ability to read, modify, and contribute to Rust-based components. DevOps: Ideally with docker experience - Background in DeFi : Having worked at a DeFi company or shipped meaningful DeFi projects (AMMs, bots, indexers, trading systems, or protocol integ
        DeFi - Remote - Upto€200k+ Tokens - Plexus is partnering with a long-standing DeFi protocol building a next-generation trading platform. Theyre pioneering a new model for automated strategies and and are now looking for a Senior DeFi Backend Engineer to help build the core systems powering it. Youll join a highly technical team working across general backend systems engineering along with apis, optimising the application for performance, arbitrage bots and more. 3+ years experience with backend Python : Including async systems, data pipelines, or protocol-level integrations. 1+ year of recent Rust experience : With the ability to read, modify, and contribute to Rust-based components. DevOps: Ideally with docker experience - Background in DeFi : Having worked at a DeFi company or shipped meaningful DeFi projects (AMMs, bots, indexers, trading systems, or protocol integ
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        Date Posted: 05/12/2025 - Location: London - Job Type: Full time - London Hybrid (minimum 50% office based) Who are Just? We help people achieve a better later life. Thats our purpose and its the reason we exist. We are a fast-growing FTSE 250 company helping customers enjoy the retirement they deserve. We do this through a variety of market leading, award-winning products and services, delivered by a diverse team of over 1,400 purpose-led colleagues who genuinely put the customer at the heart of everything we do. This is a brilliant time to join our business. We are on an exciting growth journey to become the UKs most loved retirement expert. About the Role - We are leading a bold and transformative journey - and were looking for a Product Owner to join our flagship technology system transformation programme within our Retail B2B2C business.
        Date Posted: 05/12/2025 - Location: London - Job Type: Full time - London Hybrid (minimum 50% office based) Who are Just? We help people achieve a better later life. Thats our purpose and its the reason we exist. We are a fast-growing FTSE 250 company helping customers enjoy the retirement they deserve. We do this through a variety of market leading, award-winning products and services, delivered by a diverse team of over 1,400 purpose-led colleagues who genuinely put the customer at the heart of everything we do. This is a brilliant time to join our business. We are on an exciting growth journey to become the UKs most loved retirement expert. About the Role - We are leading a bold and transformative journey - and were looking for a Product Owner to join our flagship technology system transformation programme within our Retail B2B2C business.
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        Staff Software Engineer Robotics & Life Sciences Automation - Location: London, UK - Hybrid (3 days/week on site) Contract: 4 months with possibility of extension - Start: ASAP (Dec 2025 / Jan 2026) Automata: accelerating breakthroughs that save lives - Automata builds automation that accelerates life sciences: enabling faster drug discovery, next-generation personalised medicines, and high-precision diagnostics where turnaround time can mean the difference between life and death. We believe the future of biology depends on automation that is reliable, scalable and accessible and were building the platform that makes that possible. Our modular lab bench and digital automation platform already run mission-critical workflows in leading research organisations. The next evolution of our product will scale globally, unify robotics with reproducible software interfaces, and
        Staff Software Engineer Robotics & Life Sciences Automation - Location: London, UK - Hybrid (3 days/week on site) Contract: 4 months with possibility of extension - Start: ASAP (Dec 2025 / Jan 2026) Automata: accelerating breakthroughs that save lives - Automata builds automation that accelerates life sciences: enabling faster drug discovery, next-generation personalised medicines, and high-precision diagnostics where turnaround time can mean the difference between life and death. We believe the future of biology depends on automation that is reliable, scalable and accessible and were building the platform that makes that possible. Our modular lab bench and digital automation platform already run mission-critical workflows in leading research organisations. The next evolution of our product will scale globally, unify robotics with reproducible software interfaces, and
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        Software Engineer in Test

        Halian Technology Limited
        Warwick (CV34)
        From £50,000 to £65,000 per annum Plus bonus and benefits
        My client is anaward-winning software development company that is now looking for a skilled Software engineer in testspecialising in innovative cloud-based solutions designed foraccountants. Their mission is to simplify financial management through scalable software products that help professionals to focus on what they do best. You will be responsible for designing, developing, and executing automated tests to ensure the quality and functionality of our software products. Key Responsibilities * Develop and maintain automated test suites and frameworks for web apps and APIs, ensuring complete test coverage. * Execute automated tests, analyse results, and identify defects to ensure the highest quality of our software. * Contribute to manual testing efforts when needed. * Collaborate with product and development teams to define testing requirements and strategies.
        My client is anaward-winning software development company that is now looking for a skilled Software engineer in testspecialising in innovative cloud-based solutions designed foraccountants. Their mission is to simplify financial management through scalable software products that help professionals to focus on what they do best. You will be responsible for designing, developing, and executing automated tests to ensure the quality and functionality of our software products. Key Responsibilities * Develop and maintain automated test suites and frameworks for web apps and APIs, ensuring complete test coverage. * Execute automated tests, analyse results, and identify defects to ensure the highest quality of our software. * Contribute to manual testing efforts when needed. * Collaborate with product and development teams to define testing requirements and strategies.
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        Frequently Asked Questions

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

        Where in Stewartby are these contract jobs?
        You can find contract jobs in The City, City (EC4), Hinxton, Southwark.

        What other similar jobs are there to contract API jobs in Stewartby?
        As well as contract API jobs in Stewartby, you can find contract IT, Software Development, Architecture, amongst many others.