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148 API jobs in Hertfordshire + 20 miles
649 exact matches jobs are outside your preferred location
Experience in API testing (Postman, Swagger, REST API testing)
Experience in API testing (Postman, Swagger, REST API testing)
NEW
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
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.
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.
Strong understanding of software development lifecycles, code review, test automation, CI/CD, API development, microservices, cloud/native architectures, and emerging domains like AI/ML, cybersecurity, or data engineering.
Strong understanding of software development lifecycles, code review, test automation, CI/CD, API development, microservices, cloud/native architectures, and emerging domains like AI/ML, cybersecurity, or data engineering.
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.
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.
Experience in the design and implementation of RESTful and FAST API services
Experience in the design and implementation of RESTful and FAST API services
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
Participate in the evolution and development of the REST API. * .NET, ASP.NET Core Web API
Participate in the evolution and development of the REST API. * .NET, ASP.NET Core Web API
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
Proficient in API design, development & production operation
Proficient in API design, development & production operation
NEW
Help transition from a legacy REST API to GraphQL infrastructure
Help transition from a legacy REST API to GraphQL infrastructure
NEW
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
Strong grasp of distributed systems design, data architecture, and API development
Strong grasp of distributed systems design, data architecture, and API development
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
Web API/Rest
Web API/Rest
API management
API management
Experience of RESTful API Design and authentication with OAUTH
Experience of RESTful API Design and authentication with OAUTH
3+ years of experience with API.
3+ years of experience with API.
A solid background in penetration testing with demonstrable experience in Infrastructure, web and API testing.
A solid background in penetration testing with demonstrable experience in Infrastructure, web and API testing.
Experience working with API-driven platforms, authentication flows, and security best practices.
Experience working with API-driven platforms, authentication flows, and security best practices.
Experience in consuming a RESTful API.
Experience in consuming a RESTful API.
Microsoft .NET / C#, MVC, SQL Server, Rest API and Visual Studio required.
Microsoft .NET / C#, MVC, SQL Server, Rest API and Visual Studio required.
Experience in REST API service development a plus
Experience in REST API service development a plus