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        46 Contract API jobs in Mayfair + 20 miles

        188 exact matches jobs are outside your preferred location

        Microsoft Dynamics 365 CE Solution Architect

        Cognizant
        London
        Unspecified
        .NET Framework Version 4.5 or above including strong WCF\ Web API experience
        .NET Framework Version 4.5 or above including strong WCF\ Web API experience
        NEW
        Strong knowledge of data modelling, API management, and cloud integration.
        Strong knowledge of data modelling, API management, and cloud integration.
        NEWFEATURED

        Cloud Architect

        Zensar Technologies
        London
        From £117,000 to £130,500 per annum
        Extensive experience withAWScloud ecosystem services like EC2, S3, Lambda, SNS/SQS, API Gateway, RDS/DynamoDB, CloudFormation, etc.
        Extensive experience withAWScloud ecosystem services like EC2, S3, Lambda, SNS/SQS, API Gateway, RDS/DynamoDB, CloudFormation, etc.
        more
        NEW

        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
        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

        10250545 - Internal Pen Tester

        Stott & May Professional Search Limited
        London
        £400 - £450 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

        Lead .Net Software Developer

        Hireful
        Milton Keynes, Buckinghamshire
        £65k - £75k base + Bonus
        Are you a hands-on Lead or Senior .Net Developer ready to shape architecture and guide talented developers? Want a hybrid role with 3 days WFH? This is your chance to stay close to the code while making key technical decisions that drive real business impact. You'll join a collaborative, forward-thinking team building cutting-edge products — with the support, tools, and flexibility to thrive. Role: Lead Software Developer, Senior .Net Developer, Software Engineering Manager, Senior Full Stack Developer, Lead .Net Developer, Lead Software Engineer, Senior C# Developer - Salary: £65k - £75k base + Bonus - Benefits: 5% pension, 25 days holiday, 2 wellbeing days, Christmas shutdown, private healthcare, life assurance, cinema tickets & more - Location: Milton Keynes – Hybrid (2 days a week in office) If you’ve got strong .Net (C#) experience and skills in GitHub, APIs, Pos
        Are you a hands-on Lead or Senior .Net Developer ready to shape architecture and guide talented developers? Want a hybrid role with 3 days WFH? This is your chance to stay close to the code while making key technical decisions that drive real business impact. You'll join a collaborative, forward-thinking team building cutting-edge products — with the support, tools, and flexibility to thrive. Role: Lead Software Developer, Senior .Net Developer, Software Engineering Manager, Senior Full Stack Developer, Lead .Net Developer, Lead Software Engineer, Senior C# Developer - Salary: £65k - £75k base + Bonus - Benefits: 5% pension, 25 days holiday, 2 wellbeing days, Christmas shutdown, private healthcare, life assurance, cinema tickets & more - Location: Milton Keynes – Hybrid (2 days a week in office) If you’ve got strong .Net (C#) experience and skills in GitHub, APIs, Pos
        more
        NEWFEATURED

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        Frequently Asked Questions

        How many contract API jobs are there in Mayfair?
        There are 46 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 Frimley, Millwall, Shadwell.

        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, Security, amongst many others.