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        363 Contract API jobs in London + 20 miles

        Senior Front-End Blockchain Developer

        Supportwave Ltd
        London
        From £78,000 to £90,000 per annum
        API Integration: Minimum 6 years of experience * Knowledge of secure API design or blockchain data indexing
        API Integration: Minimum 6 years of experience * Knowledge of secure API design or blockchain data indexing
        more
        NEW

        .NET Developer

        Tech 4
        EC1, City of London
        From £60,000 to £70,000 per annum + excellent benefits
        C#, ASP.NET MVC, Web Services/ASP.NET Web API , REST API Asp.Net Core MS SQL server /PostgreSQL Entity Framework /LINQ Knowledge of ASP.NET Core and Client-side Frameworks (jQuery, Angular) Azure DevOps, Git repository and CI/CD Docker/Kubernetes Linux/Micro-Services Architecture - Experience planning and mapping out API integrations.
        C#, ASP.NET MVC, Web Services/ASP.NET Web API , REST API Asp.Net Core MS SQL server /PostgreSQL Entity Framework /LINQ Knowledge of ASP.NET Core and Client-side Frameworks (jQuery, Angular) Azure DevOps, Git repository and CI/CD Docker/Kubernetes Linux/Micro-Services Architecture - Experience planning and mapping out API integrations.
        more
        Promote modern architectural patterns, such as modular design and state management best practices (e.g., Redux, Zustand, or Context API).
        Promote modern architectural patterns, such as modular design and state management best practices (e.g., Redux, Zustand, or Context API).
        more
        PREMIUM
        AWS experience (Lambda, SNS, S3, EKS, API Gateway) * Bonus points for: DBT, Airflow, Atlan, Iceberg, CI/CD, API modelling
        AWS experience (Lambda, SNS, S3, EKS, API Gateway) * Bonus points for: DBT, Airflow, Atlan, Iceberg, CI/CD, API modelling
        more
        PREMIUM
        Excellent development skills, with a depth of experience including C#, Java (Spring Boot, JPA/Hibernate), REST API's, observability and monitoring, queue technologies and security.
        Excellent development skills, with a depth of experience including C#, Java (Spring Boot, JPA/Hibernate), REST API's, observability and monitoring, queue technologies and security.
        more
        PREMIUM

        Data Engineer

        Singular Recruitment
        W1, Central London
        From £50,000 to £70,000 per annum
        API Development:Experience building data-centric APIs, especially withFastAPIon serverless platforms likeGoogle App Engine.
        API Development:Experience building data-centric APIs, especially withFastAPIon serverless platforms likeGoogle App Engine.
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        Backend & Data Proficiency: Skilled in Python, Node.js, PostgreSQL, MongoDB, and API security. * Security & Compliance: Strong understanding of GDPR, API authentication, and observability.
        Backend & Data Proficiency: Skilled in Python, Node.js, PostgreSQL, MongoDB, and API security. * Security & Compliance: Strong understanding of GDPR, API authentication, and observability.
        more
        NEW

        Global Claims IT Leader

        MARSH CORPORATE SERVICES LIMITED
        The City, EC3R 5BU
        Pension Scheme, Private Health Insurance & life insurance
        Being a cross-functional collaborator interfacing with MMC Enterprise Technology partners, Marsh-Operations, and Transformation Office will come naturally to you building a new set of reusable IT Microservices connected via a well-defined API structure.
        Being a cross-functional collaborator interfacing with MMC Enterprise Technology partners, Marsh-Operations, and Transformation Office will come naturally to you building a new set of reusable IT Microservices connected via a well-defined API structure.
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        NEWPREMIUM

        Senior MVC Developer

        Southern Communications Ltd
        HP2, Hemel Hempstead
        £75,000 per annum
        Take a lead role in the development and support ofMicrosoft MVC and .NET web applications and C# Console and API solutions, ensuring best practices are followed throughout the software lifecycle. * Proficient in.NET (C#), JavaScript, Web API, SQL Server, and working knowledge ofHTML, CSS, XML, JSON.
        Take a lead role in the development and support ofMicrosoft MVC and .NET web applications and C# Console and API solutions, ensuring best practices are followed throughout the software lifecycle. * Proficient in.NET (C#), JavaScript, Web API, SQL Server, and working knowledge ofHTML, CSS, XML, JSON.
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        NEW
        Build and work with modern API and microservices architectures
        Build and work with modern API and microservices architectures
        NEW
        Configure and test API connectivity for seamless data transmission between clients and the platform * Strong knowledge of REST APIs and API integration * Familiarity with AWS and API connectivity in cloud environments
        Configure and test API connectivity for seamless data transmission between clients and the platform * Strong knowledge of REST APIs and API integration * Familiarity with AWS and API connectivity in cloud environments
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        Senior Full Stack Web Developer - ONSITE

        Profile 29
        IG10, Loughton
        From £70,000 to £120,000 per annum + benefits (see advert)
        As a member of their team, you will have the opportunity to work on their public-facing API and back-office websites in a Test-Driven Agile environment.
        As a member of their team, you will have the opportunity to work on their public-facing API and back-office websites in a Test-Driven Agile environment.
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        What is the average salary for API in London?

        Average salary per year
        £72,499

        The average salary for a API in London is £72,499. API in London salaries range from £62,499 to £87,499.

        Frequently Asked Questions

        How many contract API jobs are there in London?
        There are 363 contract API jobs within 20 miles of London available on CWJobs right now.

        Where in London are these contract jobs?
        You can find contract jobs in City of London, Central London, West End.

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