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49 Permanent API jobs in Barnsbury, North London + 20 miles
126 exact matches jobs are outside your preferred location
About Us - At FDJ UNITED, we don't just follow the game, we reinvent it. FDJ UNITED is one of Europes leading betting and gaming operators, with a vast portfolio of iconic brands and a reputation for technological excellence. With more than 5,000 employees and a presence in around fifteen regulated markets, the Group offers a diversified, responsible range of games, both under exclusive rights and open to competition. We set new standards, proving that entertainment and safety can go hand in hand. Here, youll work alongside a team of passionate individuals dedicated to delivering the best and safest entertaining experiences for our customers every day. Were looking for bold people who are eager to succeed and ready to level-up the game. If you thrive on innovation, embrace challenges, and want to make a real impact at all levels, FDJ UNITED is your playing field.
About Us - At FDJ UNITED, we don't just follow the game, we reinvent it. FDJ UNITED is one of Europes leading betting and gaming operators, with a vast portfolio of iconic brands and a reputation for technological excellence. With more than 5,000 employees and a presence in around fifteen regulated markets, the Group offers a diversified, responsible range of games, both under exclusive rights and open to competition. We set new standards, proving that entertainment and safety can go hand in hand. Here, youll work alongside a team of passionate individuals dedicated to delivering the best and safest entertaining experiences for our customers every day. Were looking for bold people who are eager to succeed and ready to level-up the game. If you thrive on innovation, embrace challenges, and want to make a real impact at all levels, FDJ UNITED is your playing field.
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10 - The Quality Engineering team works in partnership with other Technology Functions and the Business to ensure quality delivery of our products. The team works in an Agile environment and is located globally. The team is independent in driving all decisions and is responsible for continuously improving customer experience, revenue growth and operations enablement through quick turn-around of development of our products with high quality. * Develop automation scripts that comply with organizational standards, creating reliable, reusable, and maintainable automated regression suites and test harnesses. * Utilize various tools and frameworks to create automation scripts with high-quality code to simplify testing scenarios. * Design and develop test plans and test cases based on functional and design specifications, execute test cases, and analyze and report test resul
10 - The Quality Engineering team works in partnership with other Technology Functions and the Business to ensure quality delivery of our products. The team works in an Agile environment and is located globally. The team is independent in driving all decisions and is responsible for continuously improving customer experience, revenue growth and operations enablement through quick turn-around of development of our products with high quality. * Develop automation scripts that comply with organizational standards, creating reliable, reusable, and maintainable automated regression suites and test harnesses. * Utilize various tools and frameworks to create automation scripts with high-quality code to simplify testing scenarios. * Design and develop test plans and test cases based on functional and design specifications, execute test cases, and analyze and report test resul
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London - Offering the largest production blockchain platform in the world, we share the passion to code, create, and ultimately build an open, accessible and fair financial future, one piece of software at a time. We are looking for a proactive, thorough Senior Software Engineer to help build our Defi platform. You will play a critical role in building financial and crypto-native products, services and APIs. As a Senior Back-End Engineer you should lead by example - driving the technical discussions, influencing the approach and making a positive impact on the team's development by advocating the best engineering practices. Build on our DeFi wallet platform, expanding support for multiple networks - Develop and integrate APIs from new and existing services, to our various product applications. Be a part of a dedicated engineering team committed to applying the highest
London - Offering the largest production blockchain platform in the world, we share the passion to code, create, and ultimately build an open, accessible and fair financial future, one piece of software at a time. We are looking for a proactive, thorough Senior Software Engineer to help build our Defi platform. You will play a critical role in building financial and crypto-native products, services and APIs. As a Senior Back-End Engineer you should lead by example - driving the technical discussions, influencing the approach and making a positive impact on the team's development by advocating the best engineering practices. Build on our DeFi wallet platform, expanding support for multiple networks - Develop and integrate APIs from new and existing services, to our various product applications. Be a part of a dedicated engineering team committed to applying the highest
27 June 2025 - Job Description - Reporting of the Role - This role reports to Lead Python Developer - Overview of job - We're looking for a multi-skilled, adaptable developer with a passion for high quality code to join our established development team. 3 best things about the job * Getting to work on some outstanding products that get used by over 30 million people. * Work in a team that this is a fun, creative and satisfying place for developers to work. * Work in a team where we believe in code reviews, paired programming, continuous integration, hack time and investing in developers to make them better. * Contributed to delivering phenomenal solutions for delivering the latest innovations to our digital products. * Proven a collaborative approach to delivering solutions. * Shown passion to learn new things and to share knowledge with others.
27 June 2025 - Job Description - Reporting of the Role - This role reports to Lead Python Developer - Overview of job - We're looking for a multi-skilled, adaptable developer with a passion for high quality code to join our established development team. 3 best things about the job * Getting to work on some outstanding products that get used by over 30 million people. * Work in a team that this is a fun, creative and satisfying place for developers to work. * Work in a team where we believe in code reviews, paired programming, continuous integration, hack time and investing in developers to make them better. * Contributed to delivering phenomenal solutions for delivering the latest innovations to our digital products. * Proven a collaborative approach to delivering solutions. * Shown passion to learn new things and to share knowledge with others.
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.
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Automate API testing using tools such as Postman, RestAssured, or equivalent . * RestAssured (BDD), Postman (for API testing).
Automate API testing using tools such as Postman, RestAssured, or equivalent . * RestAssured (BDD), Postman (for API testing).
Strong knowledge of C#, SQL, database design, and .NET Core REST API.
Strong knowledge of C#, SQL, database design, and .NET Core REST API.
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Mastercard Developers ( is the primary API platform for Mastercard partners to access a diverse range of payment, data, loyalty, and security APIs. The team is responsible for delivering an experience that ensures developers can quickly find the right API, assess its technical capabilities and integrate it into new and innovative solutions. Act as subject matter expert for Mastercard Developers API Platform and services to support customer integrations on occasion - Proven track record in API based products
Mastercard Developers ( is the primary API platform for Mastercard partners to access a diverse range of payment, data, loyalty, and security APIs. The team is responsible for delivering an experience that ensures developers can quickly find the right API, assess its technical capabilities and integrate it into new and innovative solutions. Act as subject matter expert for Mastercard Developers API Platform and services to support customer integrations on occasion - Proven track record in API based products
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Technical knowledge and experience in producing testable, scalable, reusable and resilient services to provide API services to front end systems.
Technical knowledge and experience in producing testable, scalable, reusable and resilient services to provide API services to front end systems.
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Support the Developer & API team in the creation of targeted messaging and marketing strategies to influence awareness and adoption of Mastercard products among developers as part of the buying committee.
Support the Developer & API team in the creation of targeted messaging and marketing strategies to influence awareness and adoption of Mastercard products among developers as part of the buying committee.
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Integrate and manage APIs through Apigee API Management. * Familiarity with Apigee and API gateway configuration.
Integrate and manage APIs through Apigee API Management. * Familiarity with Apigee and API gateway configuration.
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Define and maintain API specifications. You understand and have implemented Application Programming Interface (API) standards and cataloguing to drive API/service adoption and commercialization.
Define and maintain API specifications. You understand and have implemented Application Programming Interface (API) standards and cataloguing to drive API/service adoption and commercialization.
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API testing using coded frameworks and Postman.
API testing using coded frameworks and Postman.
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Strong background in API development, cloud adoption frameworks, and modern architectures.
Strong background in API development, cloud adoption frameworks, and modern architectures.
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Strong background in API development, cloud adoption frameworks, and modern architectures.
Strong background in API development, cloud adoption frameworks, and modern architectures.
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Strong background in API development, cloud adoption frameworks, and modern architectures.
Strong background in API development, cloud adoption frameworks, and modern architectures.
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At NiCE, we dont limit our challenges. We challenge our limits. Always. Were ambitious. Were game changers. And we play to win. We set the highest standards and execute beyond them. And if youre like us, we can offer you the ultimate career opportunity that will light a fire within you. Senior Implementation Engineer, Southampton (5 days a week) So, whats the role all about? We are looking for a talented implementation specialist to join our technology team. Primary focus will be on implementing the technical aspects of NiCE product deployments and non-standard configuration requests as well as assisting product teams to successfully introduce new products/versions. Championing supportability and delivering preventative actions on behalf of our customers is also key. How will you make an impact? * Implementing and supporting custom deployments and integration of vario
At NiCE, we dont limit our challenges. We challenge our limits. Always. Were ambitious. Were game changers. And we play to win. We set the highest standards and execute beyond them. And if youre like us, we can offer you the ultimate career opportunity that will light a fire within you. Senior Implementation Engineer, Southampton (5 days a week) So, whats the role all about? We are looking for a talented implementation specialist to join our technology team. Primary focus will be on implementing the technical aspects of NiCE product deployments and non-standard configuration requests as well as assisting product teams to successfully introduce new products/versions. Championing supportability and delivering preventative actions on behalf of our customers is also key. How will you make an impact? * Implementing and supporting custom deployments and integration of vario
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Build models, services, and libraries that fulfil the stated API contract and metrics for a project
Build models, services, and libraries that fulfil the stated API contract and metrics for a project
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Knowledge and/or work experience with API's
Knowledge and/or work experience with API's
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To complement the efficient networking architecture, you will help designing Infrastructure-as-a-Service virtual network orchestration API-driven services to support tenants workloads security and performance SLAs for BMaaS, VMaaS and Kubernetes. * Hands-on experience developing secure and performant API-driven services (gRPC, ReST with transport encryption and strong authentication)
To complement the efficient networking architecture, you will help designing Infrastructure-as-a-Service virtual network orchestration API-driven services to support tenants workloads security and performance SLAs for BMaaS, VMaaS and Kubernetes. * Hands-on experience developing secure and performant API-driven services (gRPC, ReST with transport encryption and strong authentication)
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The primary responsibility of the CI group is to work with broker-dealers and institutional clients to help them integrate their systems to the MarketAxess Fixed Income trading system via Application Programming Interfaces (API). * FIX API integration for various fixed income products as well as Post-Trade and Data API products. * Work closely with Product Owners and customers on the deployment of new API functionality and workflows and implement features with client requirements/needs in mind
The primary responsibility of the CI group is to work with broker-dealers and institutional clients to help them integrate their systems to the MarketAxess Fixed Income trading system via Application Programming Interfaces (API). * FIX API integration for various fixed income products as well as Post-Trade and Data API products. * Work closely with Product Owners and customers on the deployment of new API functionality and workflows and implement features with client requirements/needs in mind
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Be a core member of an agile team driving the team's agile and development practices, writing code and unit tests, working with API specs and automation
Be a core member of an agile team driving the team's agile and development practices, writing code and unit tests, working with API specs and automation
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Introduction - Together, were working to welcome millions more passengers, while ensuring aviation can continue to be a force for good by leading global efforts in sustainability. At Heathrow, you can be part of this providing solutions that make every journey better for millions each year. That means ensuring we meet the changing needs of the passengers, colleagues and partners who use our airport to work, travel, trade, shop, eat, explore and connect. Our Solutions team covers project management, process improvement, business change, technology, cyber defence, masterplanning, infrastructure and procurement. It brings together people with the skills to deliver prestigious and often large-scale projects, from transforming terminals to making big reductions in our carbon emissions. Every day will test your skills and give you the opportunity to make your mark.
Introduction - Together, were working to welcome millions more passengers, while ensuring aviation can continue to be a force for good by leading global efforts in sustainability. At Heathrow, you can be part of this providing solutions that make every journey better for millions each year. That means ensuring we meet the changing needs of the passengers, colleagues and partners who use our airport to work, travel, trade, shop, eat, explore and connect. Our Solutions team covers project management, process improvement, business change, technology, cyber defence, masterplanning, infrastructure and procurement. It brings together people with the skills to deliver prestigious and often large-scale projects, from transforming terminals to making big reductions in our carbon emissions. Every day will test your skills and give you the opportunity to make your mark.
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The Hoddesdon site has state-of-the-art Good Manufacturing Practice (GMP) facilities for the manufacture of Active Pharmaceutical Ingredients (API) and brand-new, well-equipped laboratories for organic process research and development. * Tech Transfer: Facilitate the introduction of API processes from R&D and Pilot Plant into manufacturing across our global network (UK, US, China). * Experience: 35 years in the pharmaceutical industry, ideally with exposure to API synthesis under GxP regulations.
The Hoddesdon site has state-of-the-art Good Manufacturing Practice (GMP) facilities for the manufacture of Active Pharmaceutical Ingredients (API) and brand-new, well-equipped laboratories for organic process research and development. * Tech Transfer: Facilitate the introduction of API processes from R&D and Pilot Plant into manufacturing across our global network (UK, US, China). * Experience: 35 years in the pharmaceutical industry, ideally with exposure to API synthesis under GxP regulations.
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Automated end-to-end and API testing tools and techniques
Automated end-to-end and API testing tools and techniques
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Related Jobs
Locations
- Shadwell
- The City, City (EC2)
- The City, City (EC3)
- The City, City (EC4)
- Gilwell Park
- Holloway
- Kempston
- Milton
- Pimlico
- Shoreditch
- City of London
- Central London
- West End
- East London
- North West London
- Reading
- South West London
- West London
- Bedford
- Cambridge
- London
- Berkshire
- Bedfordshire
- Buckinghamshire
- Cambridgeshire
- Surrey
- East Sussex
- Hertfordshire
- Oxfordshire
- West Sussex
- South East
- East Anglia