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27 Contract API jobs in The City, City of London + 20 miles
187 exact matches jobs are outside your preferred location
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Role: Senior Full Stack Engineer - Location: Remote - Salary: Competitive (Outside IR35) Type 6 month Contract - Myn is an AI driven marketplace that connects the candidates, clients and recruiters. Myn collaborates with leading employers to offer exclusive, carefully matched contract and permanent positions. Our Recruitment Partners all have extensive industry experience, and work with a select group of niche clients, to deliver the best possible experience to the candidate. Our client is a global professional services company focussed on cost reduction and programme management. They are currently looking for a skilled Full Stack Engineer to join on a 6 month project working fully remote. * Architect and implement robust backend services (Node.js, Python, or equivalent) * Build responsive, accessible front-end interfaces (React, Vue, or similar)
Role: Senior Full Stack Engineer - Location: Remote - Salary: Competitive (Outside IR35) Type 6 month Contract - Myn is an AI driven marketplace that connects the candidates, clients and recruiters. Myn collaborates with leading employers to offer exclusive, carefully matched contract and permanent positions. Our Recruitment Partners all have extensive industry experience, and work with a select group of niche clients, to deliver the best possible experience to the candidate. Our client is a global professional services company focussed on cost reduction and programme management. They are currently looking for a skilled Full Stack Engineer to join on a 6 month project working fully remote. * Architect and implement robust backend services (Node.js, Python, or equivalent) * Build responsive, accessible front-end interfaces (React, Vue, or similar)
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Develop iOS applications (Swift or Objective-C) with RESTful API integrations.
Develop iOS applications (Swift or Objective-C) with RESTful API integrations.
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The Tyk API Management platform is helping to drive the connected world and power new products and services. Weve started by building an API Management platform. As a Mid-Level Full-Stack Engineer (React + Go) at Tyk, youll be responsible for designing and building compelling solutions for our Dashboard and API Gateway products. * Contribute to the direction of dashboard UI development and API functionality * Understanding of distributed systems design fundamentals and secure API design (REST and/or gRPC) * API management experience
The Tyk API Management platform is helping to drive the connected world and power new products and services. Weve started by building an API Management platform. As a Mid-Level Full-Stack Engineer (React + Go) at Tyk, youll be responsible for designing and building compelling solutions for our Dashboard and API Gateway products. * Contribute to the direction of dashboard UI development and API functionality * Understanding of distributed systems design fundamentals and secure API design (REST and/or gRPC) * API management experience
Work with back-end teams to align API integration and interface logic.
Work with back-end teams to align API integration and interface logic.
Experience with front-end JS frameworks (ideally Vue.js 3 + Composition API)
Experience with front-end JS frameworks (ideally Vue.js 3 + Composition API)
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Experience interacting with a variety of API technologies, such as REST, JSON and XML * Experience working with AWS, using services such as ECS, S3 and API Gateway (Optional)
Experience interacting with a variety of API technologies, such as REST, JSON and XML * Experience working with AWS, using services such as ECS, S3 and API Gateway (Optional)
Knowledge of API design principles, patterns (SOAP, REST), data formats (JSON, XML), and hands-on experience executing APIs through scripting.
Knowledge of API design principles, patterns (SOAP, REST), data formats (JSON, XML), and hands-on experience executing APIs through scripting.
Implement and optimize robust API integrations (REST and GraphQL) with backend systems. * Reliable delivery of API-driven features that meet product requirements. * Demonstrated experience building and maintaining API integrations (REST, GraphQL, or gRPC).
Implement and optimize robust API integrations (REST and GraphQL) with backend systems. * Reliable delivery of API-driven features that meet product requirements. * Demonstrated experience building and maintaining API integrations (REST, GraphQL, or gRPC).
Advanced understanding of good practice API development, integration, and testing (e.g. RESTful services, GraphQL). * Experience with both front-end (e.g. React, TypeScript) and back-end (.NET C#, ASP.NET) development, especially related to API consumption good practices such as schema validation, or event-driven architectures (e.g. webhooks).
Advanced understanding of good practice API development, integration, and testing (e.g. RESTful services, GraphQL). * Experience with both front-end (e.g. React, TypeScript) and back-end (.NET C#, ASP.NET) development, especially related to API consumption good practices such as schema validation, or event-driven architectures (e.g. webhooks).
Familiarity with application programming interfaces (API)
Familiarity with application programming interfaces (API)
Institutional User Experience (UX/API) This includes driving excellence across both the Web UI and API architecture, ensuring resilience, scalability, and ease of integration for institutional clients. * Proven ability to translate complex financial and security requirements into intuitive, compliance-aware user journeys for web platforms and B2B API integrations.
Institutional User Experience (UX/API) This includes driving excellence across both the Web UI and API architecture, ensuring resilience, scalability, and ease of integration for institutional clients. * Proven ability to translate complex financial and security requirements into intuitive, compliance-aware user journeys for web platforms and B2B API integrations.
Role: Java Engineer - Native Apps - Location: London office / Hybrid (2 days per week in the office) Reporting to: Engineering Manager - Rightmoves Native Apps are central to how millions of people find their next home. We are investing in creating faster, smarter, and more personalised mobile experiences, built on modern technology, powered by data, and driven by teams who care deeply about quality and collaboration. As part of this transformation, the Native Apps engineering group is becoming a space for experimentation and innovation, where backend systems and mobile experiences come together more seamlessly than ever before. Joining now means helping to shape how we design, build, and scale the technology that powers the UKs most trusted property platform, while contributing to an inclusive engineering culture that values learning, creativity, and impact. The Role
Role: Java Engineer - Native Apps - Location: London office / Hybrid (2 days per week in the office) Reporting to: Engineering Manager - Rightmoves Native Apps are central to how millions of people find their next home. We are investing in creating faster, smarter, and more personalised mobile experiences, built on modern technology, powered by data, and driven by teams who care deeply about quality and collaboration. As part of this transformation, the Native Apps engineering group is becoming a space for experimentation and innovation, where backend systems and mobile experiences come together more seamlessly than ever before. Joining now means helping to shape how we design, build, and scale the technology that powers the UKs most trusted property platform, while contributing to an inclusive engineering culture that values learning, creativity, and impact. The Role
About Kinaxis: About Kinaxis - Elevate your career journey by embracing a new challenge with Kinaxis. We are experts in tech, but its really our people who give us passion to always seek ways to do things better. As such, were serious about your career growth and professional development, because People matter at Kinaxis. In 1984, we started out as a team of three engineers based in Ottawa, Canada. Today, we have grown to become a global organization with over 2000 employees around the world, and support 40,000+ users in over 100 countries. As a global leader in end-to-end supply chain management, we enable supply chain excellence for all industries. We are expanding our team in Europe and around the world as we continue to innovate and revolutionize how we support our customers. Our regional offices serve as centralized hubs where employees and customers from across
About Kinaxis: About Kinaxis - Elevate your career journey by embracing a new challenge with Kinaxis. We are experts in tech, but its really our people who give us passion to always seek ways to do things better. As such, were serious about your career growth and professional development, because People matter at Kinaxis. In 1984, we started out as a team of three engineers based in Ottawa, Canada. Today, we have grown to become a global organization with over 2000 employees around the world, and support 40,000+ users in over 100 countries. As a global leader in end-to-end supply chain management, we enable supply chain excellence for all industries. We are expanding our team in Europe and around the world as we continue to innovate and revolutionize how we support our customers. Our regional offices serve as centralized hubs where employees and customers from across
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Location: London Office / Hybrid (3 days a week working from home) Reporting to: Engineering Manager Customer domain - The Role - As a Senior Full Stack Engineer, you will play a key role in delivering high-quality, customer-facing software and services that power the customer experience at Rightmove. While the focus of the role is front-end engineering ( 70% React, Typescript), you will also contribute to the design and development of our backend services (30% Java, Spring Boot, Kafka), ensuring seamless end-to-end delivery. Youll work in an autonomous cross-functional team of engineers, designers, and product managers, building features that scale to millions of users and thousands of agents. Youll take ownership of technical decisions, mentor others, and help evolve our engineering practices with a modern mindset. Key Responsibilities
Location: London Office / Hybrid (3 days a week working from home) Reporting to: Engineering Manager Customer domain - The Role - As a Senior Full Stack Engineer, you will play a key role in delivering high-quality, customer-facing software and services that power the customer experience at Rightmove. While the focus of the role is front-end engineering ( 70% React, Typescript), you will also contribute to the design and development of our backend services (30% Java, Spring Boot, Kafka), ensuring seamless end-to-end delivery. Youll work in an autonomous cross-functional team of engineers, designers, and product managers, building features that scale to millions of users and thousands of agents. Youll take ownership of technical decisions, mentor others, and help evolve our engineering practices with a modern mindset. Key Responsibilities
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About Moneybox - Moneybox is the award-winning app that helps you turn your money into something greater. Weve brought saving, investing, home-buying, and retirement services all together into one simple app, so its easier than ever to achieve your goals and build wealth, whatever your starting point. Moneybox is growing rapidly, and our technical teams are no exception. We have more users, more accounts, more client money under management, more features, more code, more data, and more team-members than ever before. Were looking for a Senior Software Engineer to help us handle all of that growth without compromising on our service or product quality. This role is in our back end engineering team that builds and operates our cloud hosted services. You will be working with people throughout Moneybox to develop new features, provide technical solutions, support the live
About Moneybox - Moneybox is the award-winning app that helps you turn your money into something greater. Weve brought saving, investing, home-buying, and retirement services all together into one simple app, so its easier than ever to achieve your goals and build wealth, whatever your starting point. Moneybox is growing rapidly, and our technical teams are no exception. We have more users, more accounts, more client money under management, more features, more code, more data, and more team-members than ever before. Were looking for a Senior Software Engineer to help us handle all of that growth without compromising on our service or product quality. This role is in our back end engineering team that builds and operates our cloud hosted services. You will be working with people throughout Moneybox to develop new features, provide technical solutions, support the live
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At Bluecrest, were more than a health assessment provider - were the health intelligence company. Since our founding in 2012, weve been on a mission to make high-quality, affordable health monitoring accessible to everyone across the UK and Ireland. Serving both individual customers and businesses, we empower people to take control of their wellbeing through early detection and long-term health insights. Our purpose is simple yet powerful: to give everyone confidence in their health. By 2028, our vision is to be the UKs leading health intelligence company, delivering vital health insights to over a million people every single day. Were proud to help people live healthier for longer, and we do it by making personal health monitoring easy, affordable, and impactful. Join us in shaping the future of health intelligence, where your work makes a real difference, every day.
At Bluecrest, were more than a health assessment provider - were the health intelligence company. Since our founding in 2012, weve been on a mission to make high-quality, affordable health monitoring accessible to everyone across the UK and Ireland. Serving both individual customers and businesses, we empower people to take control of their wellbeing through early detection and long-term health insights. Our purpose is simple yet powerful: to give everyone confidence in their health. By 2028, our vision is to be the UKs leading health intelligence company, delivering vital health insights to over a million people every single day. Were proud to help people live healthier for longer, and we do it by making personal health monitoring easy, affordable, and impactful. Join us in shaping the future of health intelligence, where your work makes a real difference, every day.
Any company can tell you about how they are a multi award winning, market leading business and yes, we are both of those things in the world of IoT connectivity! But we're more than that. Our mission? To make IoT management a breeze for any device, anywhere. With over 10 million IoT subscriptions active in 165 countries and direct partnerships with 50 mobile networks , we connect you to more than 750 networks worldwide, delivering unmatched value across the IoT connectivity chain. Innovation is in our DNA , and we have an insatiable hunger to 'wow'! While we may not always get it right, our drive to collaborate, innovate, and achieve top-notch customer satisfaction never wavers. We offer industry expertise, stellar service support, and the most flexible, resilient, and secure connectivity solutions on the market.
Any company can tell you about how they are a multi award winning, market leading business and yes, we are both of those things in the world of IoT connectivity! But we're more than that. Our mission? To make IoT management a breeze for any device, anywhere. With over 10 million IoT subscriptions active in 165 countries and direct partnerships with 50 mobile networks , we connect you to more than 750 networks worldwide, delivering unmatched value across the IoT connectivity chain. Innovation is in our DNA , and we have an insatiable hunger to 'wow'! While we may not always get it right, our drive to collaborate, innovate, and achieve top-notch customer satisfaction never wavers. We offer industry expertise, stellar service support, and the most flexible, resilient, and secure connectivity solutions on the market.
Please note you must be able to pass security clearance for this role (NPPV 3) due to our clients requirements, to gain this level of clearance you must have been a resident living in the UK for the past 3 years - About This Role - Youve built up solid experience working with Oracle technologies, and youre ready for something that feels a bit more meaningful. Maybe its the chance to work more closely with clients. Maybe its the variety, the challenge, or just being part of a team where your knowledge actually matters. In this role, youll be part of the Managed Services team at Namos, supporting a mix of clients across different sectors, each with their own priorities and quirks. Youll step in when issues need fixing, but you wont stop there. Our aim is to improve how clients use their systems, not just keep things ticking along.
Please note you must be able to pass security clearance for this role (NPPV 3) due to our clients requirements, to gain this level of clearance you must have been a resident living in the UK for the past 3 years - About This Role - Youve built up solid experience working with Oracle technologies, and youre ready for something that feels a bit more meaningful. Maybe its the chance to work more closely with clients. Maybe its the variety, the challenge, or just being part of a team where your knowledge actually matters. In this role, youll be part of the Managed Services team at Namos, supporting a mix of clients across different sectors, each with their own priorities and quirks. Youll step in when issues need fixing, but you wont stop there. Our aim is to improve how clients use their systems, not just keep things ticking along.
At Bluecrest, were more than a health assessment provider - were the health intelligence company. Since our founding in 2012, weve been on a mission to make high-quality, affordable health monitoring accessible to everyone across the UK and Ireland. Serving both individual customers and businesses, we empower people to take control of their wellbeing through early detection and long-term health insights. Our purpose is simple yet powerful: to give everyone confidence in their health. By 2028, our vision is to be the UKs leading health intelligence company, delivering vital health insights to over a million people every single day. Were proud to help people live healthier for longer, and we do it by making personal health monitoring easy, affordable, and impactful. Join us in shaping the future of health intelligence, where your work makes a real difference, every day.
At Bluecrest, were more than a health assessment provider - were the health intelligence company. Since our founding in 2012, weve been on a mission to make high-quality, affordable health monitoring accessible to everyone across the UK and Ireland. Serving both individual customers and businesses, we empower people to take control of their wellbeing through early detection and long-term health insights. Our purpose is simple yet powerful: to give everyone confidence in their health. By 2028, our vision is to be the UKs leading health intelligence company, delivering vital health insights to over a million people every single day. Were proud to help people live healthier for longer, and we do it by making personal health monitoring easy, affordable, and impactful. Join us in shaping the future of health intelligence, where your work makes a real difference, every day.
The Infor Technical Consultant at is responsible for supporting the implementation, configuration, integration, and testing of Infor solutions. This role involves leveraging foundational technical skills to solve problems, optimize processes, and contribute to project success while progressively developing expertise in moderately complex tasks. The consultant will work independently managing tasks and influencing outcomes. Key Responsibilities - Technical Specialist Advice * Demonstrate strong listening skills to understand user needs and resolve standard conflicts. * Solve routine problems to improve operational efficiency using technology. * Follow established procedures for technical implementations under routine guidance. * Administer and test computer databases, coordinating minor changes, and resolving moderately complex issues.
The Infor Technical Consultant at is responsible for supporting the implementation, configuration, integration, and testing of Infor solutions. This role involves leveraging foundational technical skills to solve problems, optimize processes, and contribute to project success while progressively developing expertise in moderately complex tasks. The consultant will work independently managing tasks and influencing outcomes. Key Responsibilities - Technical Specialist Advice * Demonstrate strong listening skills to understand user needs and resolve standard conflicts. * Solve routine problems to improve operational efficiency using technology. * Follow established procedures for technical implementations under routine guidance. * Administer and test computer databases, coordinating minor changes, and resolving moderately complex issues.
We are seeking a highly driven and technically proficient Infrastructure Team Leader to join our growing team. This is a key leadership role responsible for ensuring the stability, performance, scalability, and cost-efficiency of our infrastructure environment, with a strong emphasis on cloud technologiesprimarily AWS. As the Infrastructure Team Lead, you will manage a small, skilled team and oversee the day-to-day operations of our systems. You will work closely with software engineering, DevOps, security, and business stakeholders to support strategic goals, ensure high availability of services, and optimise system costs and performance. Benefits * Holidays: 25-30 days of annual leave (plus bank holidays), with increased entitlement based on service. * Competitive Salary: Up £52,000 - £58,000 based on experience * Nest Pension scheme * Discretionary company bonus
We are seeking a highly driven and technically proficient Infrastructure Team Leader to join our growing team. This is a key leadership role responsible for ensuring the stability, performance, scalability, and cost-efficiency of our infrastructure environment, with a strong emphasis on cloud technologiesprimarily AWS. As the Infrastructure Team Lead, you will manage a small, skilled team and oversee the day-to-day operations of our systems. You will work closely with software engineering, DevOps, security, and business stakeholders to support strategic goals, ensure high availability of services, and optimise system costs and performance. Benefits * Holidays: 25-30 days of annual leave (plus bank holidays), with increased entitlement based on service. * Competitive Salary: Up £52,000 - £58,000 based on experience * Nest Pension scheme * Discretionary company bonus
Summary: VIAVI has a 90+ year history of technical innovations that have evolved to keep pace and address our customers most pressing business issues. We make equipment, software, and systems that help to plan, deploy, certify, monitor, and optimize all kinds of networks - like those for mobile phones, service providers, large businesses, and data centers. And we are also at the forefront of optical security we bend light to develop and deliver optical solutions that provide security to the worlds currencies and safety and performance applications for consumer electronics and spectrometry. We are the people behind the products that help keep the world connected at home, school, work, at play, and everywhere in between. VIAVI employees are fierce about supporting customer success and we welcome people who bring their best every day to the company - to question, to ...
Summary: VIAVI has a 90+ year history of technical innovations that have evolved to keep pace and address our customers most pressing business issues. We make equipment, software, and systems that help to plan, deploy, certify, monitor, and optimize all kinds of networks - like those for mobile phones, service providers, large businesses, and data centers. And we are also at the forefront of optical security we bend light to develop and deliver optical solutions that provide security to the worlds currencies and safety and performance applications for consumer electronics and spectrometry. We are the people behind the products that help keep the world connected at home, school, work, at play, and everywhere in between. VIAVI employees are fierce about supporting customer success and we welcome people who bring their best every day to the company - to question, to ...
Every day, somewhere in the world, important decisions are made. Whether it is a private equity company deciding to invest millions into a business or a large corporation implementing a new strategic direction, these decisions impact employees, customers, and other stakeholders. Consulting and private equity firms come to proSapient when they need to discover knowledge to help them make great decisions and succeed in their goals. It is our mission to support them in their discovery of knowledge. We help our clients find industry experts who can provide their knowledge via interview or survey: we curate this knowledge in a market-leading software platform; and we help clients surface knowledge they already have through expansive knowledge management. We are seeking an AI/ML Engineer to contribute to our AI/ML initiatives with a strong emphasis on practical software ...
Every day, somewhere in the world, important decisions are made. Whether it is a private equity company deciding to invest millions into a business or a large corporation implementing a new strategic direction, these decisions impact employees, customers, and other stakeholders. Consulting and private equity firms come to proSapient when they need to discover knowledge to help them make great decisions and succeed in their goals. It is our mission to support them in their discovery of knowledge. We help our clients find industry experts who can provide their knowledge via interview or survey: we curate this knowledge in a market-leading software platform; and we help clients surface knowledge they already have through expansive knowledge management. We are seeking an AI/ML Engineer to contribute to our AI/ML initiatives with a strong emphasis on practical software ...
As a global leader in cybersecurity, CrowdStrike protects the people, processes and technologies that drive modern organizations. Since 2011, our mission hasnt changed were here to stop breaches, and weve redefined modern security with the worlds most advanced AI-native platform. Our customers span all industries, and they count on CrowdStrike to keep their businesses running, their communities safe and their lives moving forward. Were also a mission-driven company. We cultivate a culture that gives every CrowdStriker both the flexibility and autonomy to own their careers. Were always looking to add talented CrowdStrikers to the team who have limitless passion, a relentless focus on innovation and a fanatical commitment to our customers, our community and each other. Ready to join a mission that matters? The future of cybersecurity starts with you.
As a global leader in cybersecurity, CrowdStrike protects the people, processes and technologies that drive modern organizations. Since 2011, our mission hasnt changed were here to stop breaches, and weve redefined modern security with the worlds most advanced AI-native platform. Our customers span all industries, and they count on CrowdStrike to keep their businesses running, their communities safe and their lives moving forward. Were also a mission-driven company. We cultivate a culture that gives every CrowdStriker both the flexibility and autonomy to own their careers. Were always looking to add talented CrowdStrikers to the team who have limitless passion, a relentless focus on innovation and a fanatical commitment to our customers, our community and each other. Ready to join a mission that matters? The future of cybersecurity starts with you.
About Us - At Netwrix, our mission is to revolutionize data security by placing identity at the core - providing unparalleled visibility and control. Engineered and supported by over 900 highly talented, motivated employees and hundreds of trusted partners in nearly every geography, Netwrix solutions are relied upon daily by security professionals across more than 13,500 organizations in over 100 countries around the world. Over the past two decades, Netwrix has expanded its market presence through innovation, organic growth, and strategic acquisitions, and are proud to be backed by renowned private equity firms, TA Associates and Centerbridge Partners. Netwrix maintains a global presence, fostering a remote-first work environment while encouraging and facilitating frequent face-to-face interaction with colleagues, customers, and partners. Position Overview
About Us - At Netwrix, our mission is to revolutionize data security by placing identity at the core - providing unparalleled visibility and control. Engineered and supported by over 900 highly talented, motivated employees and hundreds of trusted partners in nearly every geography, Netwrix solutions are relied upon daily by security professionals across more than 13,500 organizations in over 100 countries around the world. Over the past two decades, Netwrix has expanded its market presence through innovation, organic growth, and strategic acquisitions, and are proud to be backed by renowned private equity firms, TA Associates and Centerbridge Partners. Netwrix maintains a global presence, fostering a remote-first work environment while encouraging and facilitating frequent face-to-face interaction with colleagues, customers, and partners. Position Overview