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        169 Contract API jobs in Hertfordshire + 20 miles

        636 exact matches jobs are outside your preferred location

        Software Engineer - C++

        Etp Card Processing Ltd t/a Snap
        London
        Competitive
        Strong knowledge in C++ Strong understanding of API design
        Strong knowledge in C++ Strong understanding of API design
        The ideal candidate has prior experience solving complex forms of scaled abuse, building sophisticated protections across multiple parts of OpenAIs product suite (ChatGPT, API, Sora).
        The ideal candidate has prior experience solving complex forms of scaled abuse, building sophisticated protections across multiple parts of OpenAIs product suite (ChatGPT, API, Sora).
        more
        NEW

        Software Engineering Industrial Placement

        Cambridge Crystallographic Data Centre
        Cambridge, Cambridgeshire
        £25,000 - £27,000 a year
        During the first month, the student will undergo onboarding and training to become familiar with our CSD Python API product, our development tools and our team practices. Test Automation and API Testing Improvements (October - December 2026) The student will work with the Test Automation engineers to improve the testability and maintainability of our CSD Python API product and scripts using it. * Improving the overall robustness of our CSD Python API and the other dependent products - The focus will be on contributing to the development of new scientific features that will be exposed via our CSD Python API. * Collaborating with other software engineers to integrate new functionalities, written in C++ and Python, into the API The student will develop reporting scripts
        During the first month, the student will undergo onboarding and training to become familiar with our CSD Python API product, our development tools and our team practices. Test Automation and API Testing Improvements (October - December 2026) The student will work with the Test Automation engineers to improve the testability and maintainability of our CSD Python API product and scripts using it. * Improving the overall robustness of our CSD Python API and the other dependent products - The focus will be on contributing to the development of new scientific features that will be exposed via our CSD Python API. * Collaborating with other software engineers to integrate new functionalities, written in C++ and Python, into the API The student will develop reporting scripts
        more
        Help drive decisions on API design, synchronous vs. asynchronous processing, consistency models, and service boundaries for the broader platform. * AWS Cloud Expertise: Deep architectural knowledge of the AWS ecosystem, such as Lambda, API Gateway, S3, DynamoDB, IAM, and container orchestration (EKS/ECS).
        Help drive decisions on API design, synchronous vs. asynchronous processing, consistency models, and service boundaries for the broader platform. * AWS Cloud Expertise: Deep architectural knowledge of the AWS ecosystem, such as Lambda, API Gateway, S3, DynamoDB, IAM, and container orchestration (EKS/ECS).
        more
        This role is part of our Digital Platform Services team, who are responsible for delivering central services to the divisions in an API first way by utilising AI and new ways of working.
        This role is part of our Digital Platform Services team, who are responsible for delivering central services to the divisions in an API first way by utilising AI and new ways of working.
        more
        NEW
        Platform Innovation : Oversee the full lifecycle of feature development, from ideation to deployment, leveraging modern tech stacks to enhance platform capabilities, such as real-time data processing and API integrations.
        Platform Innovation : Oversee the full lifecycle of feature development, from ideation to deployment, leveraging modern tech stacks to enhance platform capabilities, such as real-time data processing and API integrations.
        more
        Perform hands-on implementation with the ServiceNow platform, leveraging all ServiceNow technologies and capabilities: Workflow Studio/ Flow Designer, JavaScript, REST/SOAP API integrations (incl. MID Servers), Single Sign-On and more
        Perform hands-on implementation with the ServiceNow platform, leveraging all ServiceNow technologies and capabilities: Workflow Studio/ Flow Designer, JavaScript, REST/SOAP API integrations (incl. MID Servers), Single Sign-On and more
        more
        Bring thoughtful design practices to API development including versioning, authentication, and security * Have strong opinions on effective API design and data structure, but are open to evolving them * A solid understanding of API design principles including auth, scalability and security
        Bring thoughtful design practices to API development including versioning, authentication, and security * Have strong opinions on effective API design and data structure, but are open to evolving them * A solid understanding of API design principles including auth, scalability and security
        more
        Strong understanding of cloud native architectures, SaaS solutions (Salesforce, SAP, Dynamics CRM,ServiceNow, etc..), cybersecurity posture fundamentals, API ecosystems and legacy on-premise enterprise architectures
        Strong understanding of cloud native architectures, SaaS solutions (Salesforce, SAP, Dynamics CRM,ServiceNow, etc..), cybersecurity posture fundamentals, API ecosystems and legacy on-premise enterprise architectures
        more
        As a Senior Implementation Engineer, you will lead enterprise customers through complex integrations with Yapilys API, combining strategic guidance with deep technical execution. You will collaborate closely with Customer Success, Product, and Engineering to drive successful delivery, resolve technical challenges, and ensure ongoing customer success - ultimately becoming a subject matter expert in the Yapily API and its enterprise capabilities. * Experience with API integration and implementation of SaaS solutions * Proven experience writing and maintaining code, with hands-on programming skills relevant to API integration * Collaborating in various additional projects such as maintaining our API documentation * Able to write, review, and debug code as part of end-to-end API integration * Familiarity with back-end development practices, API-driven architectures, and e
        As a Senior Implementation Engineer, you will lead enterprise customers through complex integrations with Yapilys API, combining strategic guidance with deep technical execution. You will collaborate closely with Customer Success, Product, and Engineering to drive successful delivery, resolve technical challenges, and ensure ongoing customer success - ultimately becoming a subject matter expert in the Yapily API and its enterprise capabilities. * Experience with API integration and implementation of SaaS solutions * Proven experience writing and maintaining code, with hands-on programming skills relevant to API integration * Collaborating in various additional projects such as maintaining our API documentation * Able to write, review, and debug code as part of end-to-end API integration * Familiarity with back-end development practices, API-driven architectures, and e
        more

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        What is the average salary for API in Hertfordshire?

        Average salary per year
        £62,499

        The average salary for a API in Hertfordshire is £62,499. API in Hertfordshire salaries range from £47,499 to £67,499.

        Frequently Asked Questions

        How many contract API jobs are there in Hertfordshire?
        There are 169 contract API jobs within 20 miles of Hertfordshire available on CWJobs right now.

        What other similar jobs are there to contract API jobs in Hertfordshire?
        As well as contract API jobs in Hertfordshire, you can find contract Qa Automation, Quality Assurance, QA Analyst, amongst many others.