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        352



        69 Contract API jobs in Mayfair + 20 miles

        427 exact matches jobs are outside your preferred location

        Senior C# Developer

        Hays
        London
        £420.0 - £460.0 per day + up to £460 per day (Outside IR35)
        Previous work in API integration
        Previous work in API integration
        NEW

        Senior .NET Integration Developer

        Oscar Associates (UK) Limited
        SL6, Maidenhead
        £50000 - £65000 per annum
        Assist customers and partners in integration setup and API/gateway usage.
        Assist customers and partners in integration setup and API/gateway usage.
        FEATURED
        Excellent skills in designing and delivering integrations using Microsoft Azure PaaS (Functions, Logic Apps, API Management, Service Bus,) * Expertise in integration strategy, API management, and canonical data models.
        Excellent skills in designing and delivering integrations using Microsoft Azure PaaS (Functions, Logic Apps, API Management, Service Bus,) * Expertise in integration strategy, API management, and canonical data models.
        more
        The role will focus on building and support integrations between new and existing systems using Microsoft Azure PaaS components to develop modular, reusable, and secure integration components aligned with canonical data models and modern API-first principles. * experience with Azure PaaS integration tools: Logic Apps, Functions, API Management, Service Bus, Event Grid * Experience building and managing REST APIs and implementing API-first integration designs * Exposure to OpenAPI/Swagger, API lifecycle management, and version control best practices.
        The role will focus on building and support integrations between new and existing systems using Microsoft Azure PaaS components to develop modular, reusable, and secure integration components aligned with canonical data models and modern API-first principles. * experience with Azure PaaS integration tools: Logic Apps, Functions, API Management, Service Bus, Event Grid * Experience building and managing REST APIs and implementing API-first integration designs * Exposure to OpenAPI/Swagger, API lifecycle management, and version control best practices.
        more

        Technical Architect

        Queen Square Recruitment Limited
        RG40, Wokingham
        £500 per day inside IR35
        Strong knowledge of the API/integration lifecycle, including design, deployment, and enhancement. * Expertise in RESTful & SOAP API design, APIM policy, and transformations. * Skilled in API/Integration security protocols & best practices. * Practical experience with Postman, API monitoring, and documentation tools. * Knowledge of Open API Specification, WSDL, SOAP, XSLT. * Application Insight proficiency in .NET and .NET Core (Web, API) and working knowledge of VS Code with Azure.
        Strong knowledge of the API/integration lifecycle, including design, deployment, and enhancement. * Expertise in RESTful & SOAP API design, APIM policy, and transformations. * Skilled in API/Integration security protocols & best practices. * Practical experience with Postman, API monitoring, and documentation tools. * Knowledge of Open API Specification, WSDL, SOAP, XSLT. * Application Insight proficiency in .NET and .NET Core (Web, API) and working knowledge of VS Code with Azure.
        more
        NEW

        AI Architect

        InfinityQuest Ltd,
        CB1, Cambridge
        Up to £500 per day Inside IR35
        Enterprise Engineering: Hands on experience in building data pipelines, secure API integrations, and scaling MVPs into stable, reusable services.
        Enterprise Engineering: Hands on experience in building data pipelines, secure API integrations, and scaling MVPs into stable, reusable services.
        more
        We're looking for a Senior AWS Platform Engineer to play a hands-on role in a major API infrastructure migration project. * Kong API Gateway (hybrid model) * Strong understanding of API gateways (Kong)
        We're looking for a Senior AWS Platform Engineer to play a hands-on role in a major API infrastructure migration project. * Kong API Gateway (hybrid model) * Strong understanding of API gateways (Kong)
        more
        NEWFEATURED
        Work across front-end, API, and backend services - Frontend & API: Node.js, React, Next.js, TypeScript, Express.js, Docker, Azure Web Apps - Microsoft Azure: Function Apps, Web Apps, Kubernetes Service, Cosmos DB, API Management
        Work across front-end, API, and backend services - Frontend & API: Node.js, React, Next.js, TypeScript, Express.js, Docker, Azure Web Apps - Microsoft Azure: Function Apps, Web Apps, Kubernetes Service, Cosmos DB, API Management
        more
        NEW

        Internal Penetration Tester

        Stott & May Professional Search Limited
        London
        £450 - £600 per day
        Strong application security knowledge (OWASP Top 10, API security). Hands-on experience in end-to-end pentests (internal, external, cloud, AD, web app, API).
        Strong application security knowledge (OWASP Top 10, API security). Hands-on experience in end-to-end pentests (internal, external, cloud, AD, web app, API).
        more
        NEW
        Strong application security knowledge (OWASP Top 10, API security). Hands-on experience in end-to-end pentests (internal, external, cloud, AD, web app, API).
        Strong application security knowledge (OWASP Top 10, API security). Hands-on experience in end-to-end pentests (internal, external, cloud, AD, web app, API).
        more
        NEW

        DevSecOps Pentester

        Stott & May Professional Search Limited
        London
        £500 - £550 per day
        Perform penetration testing and security reviews on CI/CD pipelines, cloud, containers, and web/API applications. Strong application security knowledge (OWASP Top 10, API security).
        Perform penetration testing and security reviews on CI/CD pipelines, cloud, containers, and web/API applications. Strong application security knowledge (OWASP Top 10, API security).
        more
        NEW
        Perform penetration testing and security reviews on CI/CD pipelines, cloud, containers, and web/API applications. Strong application security knowledge (OWASP Top 10, API security).
        Perform penetration testing and security reviews on CI/CD pipelines, cloud, containers, and web/API applications. Strong application security knowledge (OWASP Top 10, API security).
        more
        NEW

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        Frequently Asked Questions

        How many contract API jobs are there in Mayfair?
        There are 69 contract API jobs within 20 miles of Mayfair available on CWJobs right now.

        Where in Mayfair are these contract jobs?
        You can find contract jobs in Millwall, Shadwell, Southwark.

        What other similar jobs are there to contract API jobs in Mayfair?
        As well as contract API jobs in Mayfair, you can find contract IT, Software Development, Infrastructure, amongst many others.