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66 Contract API jobs in Gilwell Park + 20 miles
433 exact matches jobs are outside your preferred location
Job title: Machine Learning Engineer - Location: London, Bristol, Edinburgh (including hybrid) Salary: £63,000 - £81,000 - Kaluza reimagines energy to bring net-zero within everyone's reach. The Kaluza Platform enables energy utilities to unlock the full value of a radically changing energy system and propel us to a future where renewable energy is sustainable, affordable and accessible for all. From automating and simplifying core operations including billing to create a lower-cost, higher-engagement experience, to optimising energy usage across smart devices in the home, we turn tough challenges into win-win-win outcomes for customers, suppliers and the energy system. At Kaluza we embrace a flexible, hybrid work model that balances autonomy with the power of in-person connection. Many of our teams find value in coming together regularly to collaborate, strengthen ..
Job title: Machine Learning Engineer - Location: London, Bristol, Edinburgh (including hybrid) Salary: £63,000 - £81,000 - Kaluza reimagines energy to bring net-zero within everyone's reach. The Kaluza Platform enables energy utilities to unlock the full value of a radically changing energy system and propel us to a future where renewable energy is sustainable, affordable and accessible for all. From automating and simplifying core operations including billing to create a lower-cost, higher-engagement experience, to optimising energy usage across smart devices in the home, we turn tough challenges into win-win-win outcomes for customers, suppliers and the energy system. At Kaluza we embrace a flexible, hybrid work model that balances autonomy with the power of in-person connection. Many of our teams find value in coming together regularly to collaborate, strengthen ..
Hi, were MoonPay. Were here to onboard the world to the decentralized economy. Why? Because crypto and blockchain arent just technologiestheyre tools for global financial empowerment. They give people control over their money, their digital assets, and their future, unlocking opportunities that traditional systems have kept out of reach. What we do At MoonPay, were building the infrastructure that powers this new financial system. We make it easy for anyone, anywhere, to buy, sell, and trade crypto using everyday payment methods like cards, Apple Pay, PayPal, Revolut and Venmo. We provide simple tools to send, receive, and manage stablecoins, so anyone can participate in the crypto economy confidently. Trusted by nearly 30 million customers and over 500 companies, our secure, enterprise-grade platform is driving mainstream crypto adoption worldwide.
Hi, were MoonPay. Were here to onboard the world to the decentralized economy. Why? Because crypto and blockchain arent just technologiestheyre tools for global financial empowerment. They give people control over their money, their digital assets, and their future, unlocking opportunities that traditional systems have kept out of reach. What we do At MoonPay, were building the infrastructure that powers this new financial system. We make it easy for anyone, anywhere, to buy, sell, and trade crypto using everyday payment methods like cards, Apple Pay, PayPal, Revolut and Venmo. We provide simple tools to send, receive, and manage stablecoins, so anyone can participate in the crypto economy confidently. Trusted by nearly 30 million customers and over 500 companies, our secure, enterprise-grade platform is driving mainstream crypto adoption worldwide.
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
Lime is the world's largest shared electric vehicle company. Were on a mission to build a future where transportation is shared, affordable and carbon-free. Our electric bikes and scooters have powered 700+ million rides in 250+ cities on 5 continents, replacing an estimated 150+ million car trips. Named a Time 100 Most Influential Company and Fast Company Brand That Matters, Lime continues to set the pace for shared micromobility globally. The Client Platform Engineering team manages the lifecycle, security, and overall management of all corporate IT endpoints, both physical and cloud-based. Our environment encompasses macOS, Windows, ChromeOS, iOS, Android, and AWS. This role involves collaborating with cross-functional teams to pinpoint opportunities for boosting operational efficiency and security through effective endpoint management.
Lime is the world's largest shared electric vehicle company. Were on a mission to build a future where transportation is shared, affordable and carbon-free. Our electric bikes and scooters have powered 700+ million rides in 250+ cities on 5 continents, replacing an estimated 150+ million car trips. Named a Time 100 Most Influential Company and Fast Company Brand That Matters, Lime continues to set the pace for shared micromobility globally. The Client Platform Engineering team manages the lifecycle, security, and overall management of all corporate IT endpoints, both physical and cloud-based. Our environment encompasses macOS, Windows, ChromeOS, iOS, Android, and AWS. This role involves collaborating with cross-functional teams to pinpoint opportunities for boosting operational efficiency and security through effective endpoint management.
About Us - TravelPerk is a global travel and expense management platform. Its all-in-one platform gives travelers the freedom they want whilst providing companies with the control they need. The result saves time, money, and hassle for everyone. TravelPerk has industry-leading travel inventory alongside powerful management features, 24/7 customer support, state-of-the-art technology, and consumer-grade design. Founded in 2015 and headquartered in Barcelona, we've grown to over 1,800 people across Europe and North America. In 2022 we became a 'unicorn' and in 2025 we raised $200 million in a Series E funding round, increasing our valuation of $2.7 billion. We've been winning awards too. Since 2023, we've been voted one of the best places to work, one of the fastest-growing apps and tech companies , and a leading pioneer of business travel.
About Us - TravelPerk is a global travel and expense management platform. Its all-in-one platform gives travelers the freedom they want whilst providing companies with the control they need. The result saves time, money, and hassle for everyone. TravelPerk has industry-leading travel inventory alongside powerful management features, 24/7 customer support, state-of-the-art technology, and consumer-grade design. Founded in 2015 and headquartered in Barcelona, we've grown to over 1,800 people across Europe and North America. In 2022 we became a 'unicorn' and in 2025 we raised $200 million in a Series E funding round, increasing our valuation of $2.7 billion. We've been winning awards too. Since 2023, we've been voted one of the best places to work, one of the fastest-growing apps and tech companies , and a leading pioneer of business travel.
at Ebury - London - Ebury is a global fintech firm dedicated to empowering businesses to expand internationally through tailored and forward-thinking financial solutions. Since our founding in 2009, we've grown to a diverse team of over 1,700 professionals across 40+ offices and 29+ markets worldwide. Joining Ebury means becoming part of a collaborative and innovative environment where your contributions are valued. You'll play a key role in shaping the future of cross-border finance, while advancing your own career in a dynamic, high-growth industry. Senior Fullstack Mobile Engineer (React Native) London Office - Hybrid: 4 days in the office, 1 day working from home - Ebury is seeking a Senior Full Stack Mobile Engineer skilled in React Native to play a crucial part in our Channels Core team. In this role, you will be working on evolving our mobile app for the scale
at Ebury - London - Ebury is a global fintech firm dedicated to empowering businesses to expand internationally through tailored and forward-thinking financial solutions. Since our founding in 2009, we've grown to a diverse team of over 1,700 professionals across 40+ offices and 29+ markets worldwide. Joining Ebury means becoming part of a collaborative and innovative environment where your contributions are valued. You'll play a key role in shaping the future of cross-border finance, while advancing your own career in a dynamic, high-growth industry. Senior Fullstack Mobile Engineer (React Native) London Office - Hybrid: 4 days in the office, 1 day working from home - Ebury is seeking a Senior Full Stack Mobile Engineer skilled in React Native to play a crucial part in our Channels Core team. In this role, you will be working on evolving our mobile app for the scale
At Corsearch, we are dedicated to creating a world where consumers can trust the choices they make. As a global leader in Trademark and Brand Protection, we partner with businesses to safeguard their most valuable assets in an increasingly complex digital environment. Our comprehensive solutions, powered by AI-driven data and deep analytics, enable brands to establish, monitor, and protect their presence against infringement and counterfeiting. Why Choose Corsearch? * Innovative Solutions : We combine cutting-edge technology with expert judgment to deliver market-leading services in trademark clearance, brand protection, and anti-counterfeiting. * Global Impact : Trusted by over 5,000 customers worldwide, including 73 of Fortune's Top 100 companies, our work has a meaningful impact on businesses and consumers alike.
At Corsearch, we are dedicated to creating a world where consumers can trust the choices they make. As a global leader in Trademark and Brand Protection, we partner with businesses to safeguard their most valuable assets in an increasingly complex digital environment. Our comprehensive solutions, powered by AI-driven data and deep analytics, enable brands to establish, monitor, and protect their presence against infringement and counterfeiting. Why Choose Corsearch? * Innovative Solutions : We combine cutting-edge technology with expert judgment to deliver market-leading services in trademark clearance, brand protection, and anti-counterfeiting. * Global Impact : Trusted by over 5,000 customers worldwide, including 73 of Fortune's Top 100 companies, our work has a meaningful impact on businesses and consumers alike.
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.
Experience in API testing (Postman, Swagger, REST API testing)
Experience in API testing (Postman, Swagger, REST API testing)
NEW
As a Fullstack Engineer at Kiln, you will join our Software Development Team, composed of 14 engineers split into 4 squads, to build the future of our SaaS/API-first products [ You will report to our Lead Software Engineer, and collaborate with the Product, Infrastructure and Smart-Contract teams to work on the various products that Kiln offers. Stack: TypeScript, React, PHP, Laravel, REST API * +3 years of experience as a Software Engineer (Backend, Frontend, or Fullstack), designing, building, and deploying user-facing and API-based products . Our API-first platform provides fully automated validators, staking & DeFi protocols access, and comprehensive data and commission management.
As a Fullstack Engineer at Kiln, you will join our Software Development Team, composed of 14 engineers split into 4 squads, to build the future of our SaaS/API-first products [ You will report to our Lead Software Engineer, and collaborate with the Product, Infrastructure and Smart-Contract teams to work on the various products that Kiln offers. Stack: TypeScript, React, PHP, Laravel, REST API * +3 years of experience as a Software Engineer (Backend, Frontend, or Fullstack), designing, building, and deploying user-facing and API-based products . Our API-first platform provides fully automated validators, staking & DeFi protocols access, and comprehensive data and commission management.
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 backend development skills with focus on API design, system scalability, and observability/monitoring
Strong backend development skills with focus on API design, system scalability, and observability/monitoring
API management
API management
Test automation following Test Driven Development practices including unit testing, API testing, and end-to-end testing
Test automation following Test Driven Development practices including unit testing, API testing, and end-to-end testing
Strong grasp of distributed systems design, data architecture, and API development
Strong grasp of distributed systems design, data architecture, and API development
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.
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.
3+ years of experience with API.
3+ years of experience with API.
Related Jobs
Locations
- Southwark
- The City, City (EC3)
- Brentford End
- Clerkenwell
- Covent Garden
- Datchet Common
- Englefield
- Fivensgreen
- Haslemere Industrial Estate
- Kempston
- City of London
- Central London
- Reading
- West End
- Milton Keynes
- Cambridge
- South East London
- East London
- Maidenhead
- Oxford
- London
- Berkshire
- Buckinghamshire
- Surrey
- Cambridgeshire
- Hertfordshire
- Oxfordshire
- Essex
- Bedfordshire
- Northamptonshire
- South East
- East Anglia
- East Midlands
- Midlands