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76 Contract API jobs in Barbican, City of London + 20 miles
300 exact matches jobs are outside your preferred location
Introduce new product offerings such as exotic currencies and API products * Extensive development skills and experience with Java, Spring, Hibernate, Open API, Log4J, etc.
Introduce new product offerings such as exotic currencies and API products * Extensive development skills and experience with Java, Spring, Hibernate, Open API, Log4J, etc.
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.
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.
A strong technical acumen and familiarity working with Jira, REST API, JSON, SAML SSO, and Azure DevOps
A strong technical acumen and familiarity working with Jira, REST API, JSON, SAML SSO, and Azure DevOps
Restful API Services experience
Restful API Services experience
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).
Guide teams in the adoption of best practices in API design, modularity, cloud-native patterns, and event-driven systems
Guide teams in the adoption of best practices in API design, modularity, cloud-native patterns, and event-driven systems
Large-scale data processing; data modeling; holistic, intent-based API design
Large-scale data processing; data modeling; holistic, intent-based API design
Experience with ARTIQ systems, or controlling hardware via python API.
Experience with ARTIQ systems, or controlling hardware via python API.
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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.
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Technically fluent in API-based integrations can reason about tradeoffs, unblock teams, and advocate for scalable solutions
Technically fluent in API-based integrations can reason about tradeoffs, unblock teams, and advocate for scalable solutions
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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
Strong knowledge of C#, SQL, database design, and .NET Core REST API.
Strong knowledge of C#, SQL, database design, and .NET Core REST 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
We are now scaling up with applications designed for major meeting platforms, real-time communication channels, and a powerful Public API to extend our functionality to a broader set of applications.
We are now scaling up with applications designed for major meeting platforms, real-time communication channels, and a powerful Public API to extend our functionality to a broader set of applications.
Were primarily in AWS , utilising Lambda, ECS, SQS, API Gateway among others.
Were primarily in AWS , utilising Lambda, ECS, SQS, API Gateway among others.
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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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Experience working with software systems including querying, SQL scripting, and working with API development * Technical understanding of Meta advertising products (including Ads and Pages API, Identity Platform) * Experience working with API documents, calling APIs using scripts, and testing APIs
Experience working with software systems including querying, SQL scripting, and working with API development * Technical understanding of Meta advertising products (including Ads and Pages API, Identity Platform) * Experience working with API documents, calling APIs using scripts, and testing APIs
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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UI Engineer / Front End Developer / Engineer – Angular – Remote
UI Engineer / Front End Developer / Engineer – Angular – Remote
MYO Talent
UK
From £450 to £550 per day Inside IR35
One of our leading clients is looking to recruit a UI Engineer / Developer / Front End Developer / Software Engineer. Location remote - Duration 6 months - Experience in a UI Engineer / Software Engineer / Front End Developer / Angular Developer role - Angular experience essential - Building and maintaining responsive and accessible interfaces at scale - Familiarity with state management libraries (e.g., Redux, Zustand) and component-based architectures - Solid understanding of web performance optimisation, testing (unit, integration, and end-to-end), and cross-browser compatibility - Collaborate with UX designers and product teams to translate design wireframes and prototypes into working front-end components - Ensure a consistent look and feel across all digital products through the implementation and maintenance of a shared design system.
One of our leading clients is looking to recruit a UI Engineer / Developer / Front End Developer / Software Engineer. Location remote - Duration 6 months - Experience in a UI Engineer / Software Engineer / Front End Developer / Angular Developer role - Angular experience essential - Building and maintaining responsive and accessible interfaces at scale - Familiarity with state management libraries (e.g., Redux, Zustand) and component-based architectures - Solid understanding of web performance optimisation, testing (unit, integration, and end-to-end), and cross-browser compatibility - Collaborate with UX designers and product teams to translate design wireframes and prototypes into working front-end components - Ensure a consistent look and feel across all digital products through the implementation and maintenance of a shared design system.
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Experience with API integrations.
Experience with API integrations.