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101 Contract API jobs in The City, City of London + 20 miles
618 exact matches jobs are outside your preferred location
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.
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).
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Familiarity with API testing and integration diagnostics
Familiarity with API testing and integration diagnostics
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.
Large-scale data processing; data modeling; holistic, intent-based API design
Large-scale data processing; data modeling; holistic, intent-based API design
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
Strong grasp of distributed systems design, data architecture, and API development
Strong grasp of distributed systems design, data architecture, and API development
Experience with ARTIQ systems, or controlling hardware via python API.
Experience with ARTIQ systems, or controlling hardware via python API.
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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
Experience of RESTful API Design and authentication with OAUTH
Experience of RESTful API Design and authentication with OAUTH
API Testing: Ability to test APIs using tools like Postman or Swagger.
API Testing: Ability to test APIs using tools like Postman or Swagger.
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.
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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.
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.
Uphold high standards for our uptime and latency requirements while not sacrificing the veracity of API responses
Uphold high standards for our uptime and latency requirements while not sacrificing the veracity of API responses
Experience in REST API service development a plus
Experience in REST API service development a plus
Experience in consuming a RESTful API.
Experience in consuming a RESTful API.
Experience in consuming a RESTful API.
Experience in consuming a RESTful API.
Experience in REST API service development a plus
Experience in REST API service development a plus
Securing and managing APIs using API Manager. * Managing the API development lifecycle from design to governance and management.
Securing and managing APIs using API Manager. * Managing the API development lifecycle from design to governance and management.
Experience supporting end-to-end workflows for API-driven SaaS products with a global scale.
Experience supporting end-to-end workflows for API-driven SaaS products with a global scale.