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4 Contract API jobs in Milton, Cambridge + 20 miles
318 exact matches jobs are outside your preferred location
About 9fin - The world's largest asset class, debt, operates with the worst data. Technology has revolutionized equity markets with electronic trading, quant algos and instantaneous news. However, in debt capital markets, the picture is completely different. Our mission is to change this. 9fin's proprietary technology delivers fast and comprehensive financial, credit, legal & ESG analysis. Our clients are able to make faster, more informed decisions, win more business and most importantly, save time. Our fast growing list of clients include 9 of the top 10 Investment Banks, leading Asset Managers, Hedge Funds and Law Firms. What youll work on - As a senior full-stack engineer on the Onboarding & Activation team, you will be focused on revolutionizing the initial user experience at 9fin to drive significant growth and revenue.
About 9fin - The world's largest asset class, debt, operates with the worst data. Technology has revolutionized equity markets with electronic trading, quant algos and instantaneous news. However, in debt capital markets, the picture is completely different. Our mission is to change this. 9fin's proprietary technology delivers fast and comprehensive financial, credit, legal & ESG analysis. Our clients are able to make faster, more informed decisions, win more business and most importantly, save time. Our fast growing list of clients include 9 of the top 10 Investment Banks, leading Asset Managers, Hedge Funds and Law Firms. What youll work on - As a senior full-stack engineer on the Onboarding & Activation team, you will be focused on revolutionizing the initial user experience at 9fin to drive significant growth and revenue.
Job Title: Advanced Software Engineer Team: Graphics Reporting into: Lead Software Engineer (Graphics) Hybrid working/Remote possibility Studio Overview We are Sports Interactive The gaming studio behind: Football Manager. Founded in 1994, Sports Interactive became a wholly owned subsidiary of SEGA Europe in 2006. Based at the Here East technology hub in Stratford, East London, the SI team continues to expand as we bring our titles to an ever-growing audience across an increasing variety of platforms. To support our growth, we welcome the opportunity to connect with passionate people with the drive to match our ambitions and initiative to realise your individual potential. Position Overview Continually improving the visual quality and performance of Football Manager is one of our main goals, and we are looking for an experienced, passionate graphics software engineer
Job Title: Advanced Software Engineer Team: Graphics Reporting into: Lead Software Engineer (Graphics) Hybrid working/Remote possibility Studio Overview We are Sports Interactive The gaming studio behind: Football Manager. Founded in 1994, Sports Interactive became a wholly owned subsidiary of SEGA Europe in 2006. Based at the Here East technology hub in Stratford, East London, the SI team continues to expand as we bring our titles to an ever-growing audience across an increasing variety of platforms. To support our growth, we welcome the opportunity to connect with passionate people with the drive to match our ambitions and initiative to realise your individual potential. Position Overview Continually improving the visual quality and performance of Football Manager is one of our main goals, and we are looking for an experienced, passionate graphics software engineer
Who We Are - At Kyndryl, we design, build, manage and modernize the mission-critical technology systems that the world depends on every day. So why work at Kyndryl? We are always moving forward always pushing ourselves to go further in our efforts to build a more equitable, inclusive world for our employees, our customers and our communities. The Role - Location: Remote-first (UK-based role with global customer reach: UK, US, Japan, MEA, and beyond) Architect and advance Agentic AI with a team that's setting the pace for the industry. We're solving real-world problems at massive scale powered by creativity, precision, and a shared obsession with whats next. Youll be part of a team shaping the future of Agentic AI - architecting and scaling a next-gen open-source framework that powers autonomous systems across industries. We're not just talking innovation - we're build
Who We Are - At Kyndryl, we design, build, manage and modernize the mission-critical technology systems that the world depends on every day. So why work at Kyndryl? We are always moving forward always pushing ourselves to go further in our efforts to build a more equitable, inclusive world for our employees, our customers and our communities. The Role - Location: Remote-first (UK-based role with global customer reach: UK, US, Japan, MEA, and beyond) Architect and advance Agentic AI with a team that's setting the pace for the industry. We're solving real-world problems at massive scale powered by creativity, precision, and a shared obsession with whats next. Youll be part of a team shaping the future of Agentic AI - architecting and scaling a next-gen open-source framework that powers autonomous systems across industries. We're not just talking innovation - we're build
Rayo, part of the UBDS group, is seeking a Full-Stack Developer to contribute to the development and support of cloud-native applications deployed on Amazon Web Services (AWS). The successful candidate will work across the full software development lifecycle, combining solid Java/Spring Boot back-end development with modern front-end skills using frameworks such as React or Angular. The role offers opportunities to support, design, and build scalable and secure solutions for high-impact public sector programmes. This position is suitable for candidates with foundational experience in full-stack development, as well as those with deeper technical capability looking to further progress within an Agile delivery environment. * Design, develop, and maintain scalable full-stack solutions hosted on AWS. * Build and integrate RESTful APIs using Java and Spring Boot.
Rayo, part of the UBDS group, is seeking a Full-Stack Developer to contribute to the development and support of cloud-native applications deployed on Amazon Web Services (AWS). The successful candidate will work across the full software development lifecycle, combining solid Java/Spring Boot back-end development with modern front-end skills using frameworks such as React or Angular. The role offers opportunities to support, design, and build scalable and secure solutions for high-impact public sector programmes. This position is suitable for candidates with foundational experience in full-stack development, as well as those with deeper technical capability looking to further progress within an Agile delivery environment. * Design, develop, and maintain scalable full-stack solutions hosted on AWS. * Build and integrate RESTful APIs using Java and Spring Boot.
About Quidax - Quidax is where money meets limitless possibilities. Were making it super easy for individuals, businesses, and fintechs in Africa to access crypto. Our goal? Providing real value for our customers today while shaping the future of money. About the Role - Were looking for a Senior / Staff Android Engineer whos obsessed with building sleek, reliable Android apps that make crypto simple and seamless. Youll be the tech glue holding complex mobile projects together, leading architecture and mentorship, and pushing our mobile platform into its next evolution. If you live for clean code, smooth user experiences, and high-impact work, keep reading. What Youll Be Owning - Drive Mobile Engineering Excellence * In your first 90 days: Own and optimize our Android apps architecturemake it scalable, fast, and future-proof.
About Quidax - Quidax is where money meets limitless possibilities. Were making it super easy for individuals, businesses, and fintechs in Africa to access crypto. Our goal? Providing real value for our customers today while shaping the future of money. About the Role - Were looking for a Senior / Staff Android Engineer whos obsessed with building sleek, reliable Android apps that make crypto simple and seamless. Youll be the tech glue holding complex mobile projects together, leading architecture and mentorship, and pushing our mobile platform into its next evolution. If you live for clean code, smooth user experiences, and high-impact work, keep reading. What Youll Be Owning - Drive Mobile Engineering Excellence * In your first 90 days: Own and optimize our Android apps architecturemake it scalable, fast, and future-proof.
Rayo, part of the UBDS group, is seeking a Back-End Developer to design, build, and maintain robust APIs and microservices for AWS-hosted platforms. This role involves delivering secure, scalable server-side solutions using Java and Spring Boot, with strong integration across AWS managed services. The successful candidate will also be expected to contribute to DevOps practices, performance optimisation, and team-wide code quality. This opportunity is suitable for experienced developers looking to deepen their technical leadership, as well as those progressing into a senior capacity with hands-on AWS delivery and solution design experience. * Develop and maintain back-end components using Java (11+) and Spring Boot. * Design and implement RESTful APIs and microservices within secure, cloud-native architectures.
Rayo, part of the UBDS group, is seeking a Back-End Developer to design, build, and maintain robust APIs and microservices for AWS-hosted platforms. This role involves delivering secure, scalable server-side solutions using Java and Spring Boot, with strong integration across AWS managed services. The successful candidate will also be expected to contribute to DevOps practices, performance optimisation, and team-wide code quality. This opportunity is suitable for experienced developers looking to deepen their technical leadership, as well as those progressing into a senior capacity with hands-on AWS delivery and solution design experience. * Develop and maintain back-end components using Java (11+) and Spring Boot. * Design and implement RESTful APIs and microservices within secure, cloud-native architectures.
We're making the world of digital assets accessible and secure for everyone. Join the mission. Were the forever innovators. On a mission that goes beyond business. Securing digital ownership in a changing world. Unlocking true freedom. Were revolutionaries. Looking beyond today. Bridging excellence and pragmatism, with ambition and conviction, to push the limits of whats possible. Thats what youll do here, in this playground of innovation. With leadership and trust, youll write the rules of new technology, and create products that redefine security in a digital age. To support our continued growth, were hiring an Engineering Manager to join the Wallet Experience business unit . Youll work directly with the Engineering Director and lead a high-performing team to deliver core features across our top-rated native applications.
We're making the world of digital assets accessible and secure for everyone. Join the mission. Were the forever innovators. On a mission that goes beyond business. Securing digital ownership in a changing world. Unlocking true freedom. Were revolutionaries. Looking beyond today. Bridging excellence and pragmatism, with ambition and conviction, to push the limits of whats possible. Thats what youll do here, in this playground of innovation. With leadership and trust, youll write the rules of new technology, and create products that redefine security in a digital age. To support our continued growth, were hiring an Engineering Manager to join the Wallet Experience business unit . Youll work directly with the Engineering Director and lead a high-performing team to deliver core features across our top-rated native applications.
Rayo, part of the UBDS group, is seeking a Front-End Developer to deliver high-performance, accessible, and maintainable user interfaces for AWS-hosted applications. The successful candidate will work closely with designers, back-end engineers, and DevOps teams to build responsive and scalable front-end solutions. This role is suited to developers with solid experience in modern JavaScript frameworks and a keen understanding of front-end performance and security principles, as well as those ready to provide architectural input and mentor junior colleagues. This opportunity offers a range of responsibilities suitable for both experienced developers and those seeking to grow into senior technical leadership roles within the front-end space. * Build and maintain robust, user-centred front-end applications using React or Angular.
Rayo, part of the UBDS group, is seeking a Front-End Developer to deliver high-performance, accessible, and maintainable user interfaces for AWS-hosted applications. The successful candidate will work closely with designers, back-end engineers, and DevOps teams to build responsive and scalable front-end solutions. This role is suited to developers with solid experience in modern JavaScript frameworks and a keen understanding of front-end performance and security principles, as well as those ready to provide architectural input and mentor junior colleagues. This opportunity offers a range of responsibilities suitable for both experienced developers and those seeking to grow into senior technical leadership roles within the front-end space. * Build and maintain robust, user-centred front-end applications using React or Angular.
We offer a flexible working policy that empowers iManage employees to balance work and well-being. We encourage two days per week in-office collaboration, offering opportunities to learn from peers in person, while also providing the flexibility needed for a meaningful work-life balance. Being a Senior Technical Consultant at iManage means - You will be responsible for providing implementation expertise on our enterprise projects and initiatives. You will take responsibility for the technical delivery of our iManage products and provide high-value advice and guidance to our clients. You will collaborate closely with our clients and fellow team members to understand business processes and requirements to help ensure the delivery of successful, business critical solutions. You will be a subject matter expert and trusted advisor to our clients.
We offer a flexible working policy that empowers iManage employees to balance work and well-being. We encourage two days per week in-office collaboration, offering opportunities to learn from peers in person, while also providing the flexibility needed for a meaningful work-life balance. Being a Senior Technical Consultant at iManage means - You will be responsible for providing implementation expertise on our enterprise projects and initiatives. You will take responsibility for the technical delivery of our iManage products and provide high-value advice and guidance to our clients. You will collaborate closely with our clients and fellow team members to understand business processes and requirements to help ensure the delivery of successful, business critical solutions. You will be a subject matter expert and trusted advisor to our clients.
6 month outside IR35 contract - As part of our exciting growth journey, were expanding our Mobile Engineering team and are on the lookout for a talented Android Engineer to join us on a hybrid basis at our London office. This is a rare chance to work on high impact greenfield products for some of the biggest and most iconic sports brands in the world. Youll be at the forefront of building modern, scalable apps from the ground up, helping shape the future of fan engagement across global sport. Youll bring technical expertise and strong delivery focus. Contributing high-quality code, collaborating closely with our in-house teams, and helping us hit key milestones. Youll be embedded in a passionate, cross-functional team and supported to do your best work while working on fast-moving, purpose-driven projects that reach millions of fans worldwide. Requirements
6 month outside IR35 contract - As part of our exciting growth journey, were expanding our Mobile Engineering team and are on the lookout for a talented Android Engineer to join us on a hybrid basis at our London office. This is a rare chance to work on high impact greenfield products for some of the biggest and most iconic sports brands in the world. Youll be at the forefront of building modern, scalable apps from the ground up, helping shape the future of fan engagement across global sport. Youll bring technical expertise and strong delivery focus. Contributing high-quality code, collaborating closely with our in-house teams, and helping us hit key milestones. Youll be embedded in a passionate, cross-functional team and supported to do your best work while working on fast-moving, purpose-driven projects that reach millions of fans worldwide. Requirements
Optional knowledge of REST API and SWAGGER HubXCT eg SWIFT MTMX Cross Border will be an asset
Optional knowledge of REST API and SWAGGER HubXCT eg SWIFT MTMX Cross Border will be an asset
At least 2 years as an SA or at least 4 years in a similar customer-facing role, for example as a technical consultant, solution engineer or implementation engineer at an API-first (REST, GraphQL) SaaS company.
At least 2 years as an SA or at least 4 years in a similar customer-facing role, for example as a technical consultant, solution engineer or implementation engineer at an API-first (REST, GraphQL) SaaS company.
The OpenPayd platform delivers a suite of banking and payments infrastructure: accounts in over 40 currencies, FX, on/off ramp, international and domestic payments, Open Banking services all via a single API.
The OpenPayd platform delivers a suite of banking and payments infrastructure: accounts in over 40 currencies, FX, on/off ramp, international and domestic payments, Open Banking services all via a single API.
Experience and knowledge of API testing and the use of Postman
Experience and knowledge of API testing and the use of Postman
Ensure consistency in user experience, API design, and operational processes across the capability.
Ensure consistency in user experience, API design, and operational processes across the capability.
Front Office Quantitative Software Engineer
Front Office Quantitative Software Engineer
Banco Bilbao Vizcaya t/a Bbva Finance (Uk) Ltd
London
Competitive
Experience with the Murex platform and Murex Flex API.
Experience with the Murex platform and Murex Flex API.
Strong grasp of distributed systems design, data architecture, and API development
Strong grasp of distributed systems design, data architecture, and API development
Strong proficiency in Java (preferably Java 17+), Spring Boot, and RESTful API development
Strong proficiency in Java (preferably Java 17+), Spring Boot, and RESTful API development
NEW
Help transition from a legacy REST API to GraphQL infrastructure
Help transition from a legacy REST API to GraphQL infrastructure
You can design a RESTful API and list all the pros and cons of your design * You have an API-first product mindset: you care about customer outcomes and you like to listen to their use-cases before diving into code
You can design a RESTful API and list all the pros and cons of your design * You have an API-first product mindset: you care about customer outcomes and you like to listen to their use-cases before diving into code
Experience of RESTful API Design and authentication with OAUTH
Experience of RESTful API Design and authentication with OAUTH
This is to support the Vonage API group where you will be working with a variety of customers that we aim to solve their business challenges through our Vonage API's
This is to support the Vonage API group where you will be working with a variety of customers that we aim to solve their business challenges through our Vonage API's
Experience working with API-driven platforms, authentication flows, and security best practices.
Experience working with API-driven platforms, authentication flows, and security best practices.
2+ years of in a few of the areas: serverless architecture, event-driven architecture, microservices, API-driven cloud-based products including performance management.
2+ years of in a few of the areas: serverless architecture, event-driven architecture, microservices, API-driven cloud-based products including performance management.
NEW
2+ years of in a few of the areas: serverless architecture, event-driven architecture, microservices, API-driven cloud-based products including performance management.
2+ years of in a few of the areas: serverless architecture, event-driven architecture, microservices, API-driven cloud-based products including performance management.