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        52 Contract API jobs in London + 20 miles

        Principal Engineer

        InfinityQuest Ltd,
        London
        Unspecified
        Strong knowledge of API integration.
        Strong knowledge of API integration.

        Software Engineer (Hardware Integration with .NET)

        IO Associates
        City of London (EC1)
        £600 - £800 per day + Outside IR35 and Hybrid
        Role: Staff Software Engineer - Sector: Life Sciences - Location: London - Days Onsite: 3 per week - Day Rate: £800 Outside IR35 - Duration: 4 Months then to extend or go Permanent - iO Associates have partnered with Life Science Manufacturing company on their search for a Staff Software Engineer who has a strong background in integrating Medical Devices. This role will give you the opportunity to make a real impact in Healthcare and Life Sciences. Essential Requirements * Strong .NET / C# background * Significant experience integrating and communicating with hardware devices * Ability to handle Windows devices, drivers, and communication layers * 8+ years of experience at a staff-level, capable of working autonomously * Not a web-focused developer; needs to be fully hardware-integration oriented - Beneficial Experience * gRPC, REST APIs, HTTP * Integrating devices in
        Role: Staff Software Engineer - Sector: Life Sciences - Location: London - Days Onsite: 3 per week - Day Rate: £800 Outside IR35 - Duration: 4 Months then to extend or go Permanent - iO Associates have partnered with Life Science Manufacturing company on their search for a Staff Software Engineer who has a strong background in integrating Medical Devices. This role will give you the opportunity to make a real impact in Healthcare and Life Sciences. Essential Requirements * Strong .NET / C# background * Significant experience integrating and communicating with hardware devices * Ability to handle Windows devices, drivers, and communication layers * 8+ years of experience at a staff-level, capable of working autonomously * Not a web-focused developer; needs to be fully hardware-integration oriented - Beneficial Experience * gRPC, REST APIs, HTTP * Integrating devices in
        more
        FEATURED
        Affinity Water is excited to be growing our Maximo Team, and we are looking for someone who is passionate, curious and ready to make an impact to join us as a Maximo Specialist on a 12 month fixed Term Contract. As a Maximo Specialist, you will be seen as one of the companys resident experts in how Maximo works. In conjunction with IT and business change teams you will be responsible for requirements definition, analysis, and design of Maximo enhancements, automation scripts and integrations. * ESRI GIS Mapping solution * Hi-Affinity CMS * Aurora Streetworks Management system * Waternet Leakage Monitoring system * Oracle Fusion Finance and Procurement system * FLS Visitour Scheduling - There is an ambitious road map for the next few years which includes regulatory change, enhancements, small change, and an upgrade to MAS to name a few.
        Affinity Water is excited to be growing our Maximo Team, and we are looking for someone who is passionate, curious and ready to make an impact to join us as a Maximo Specialist on a 12 month fixed Term Contract. As a Maximo Specialist, you will be seen as one of the companys resident experts in how Maximo works. In conjunction with IT and business change teams you will be responsible for requirements definition, analysis, and design of Maximo enhancements, automation scripts and integrations. * ESRI GIS Mapping solution * Hi-Affinity CMS * Aurora Streetworks Management system * Waternet Leakage Monitoring system * Oracle Fusion Finance and Procurement system * FLS Visitour Scheduling - There is an ambitious road map for the next few years which includes regulatory change, enhancements, small change, and an upgrade to MAS to name a few.
        more
        FEATURED
        Rate - £500 / £525 Outside IR35 - Duration - 3 months - Location - Fully remote - Sanderson is currently working with an organisation who require a D365 Business Central/Shopify Support Engineer to bridge ERP and e-commerce platforms, ensuring seamless integration, smooth operations and excellent support for business users. The ideal candidate will have strong technical expertise, problem solving skills and a customer focused mindset. Key Responsibilities * Provide technical support for Microsoft Dynamics 365 Business Central and Shopify platforms * Troubleshoot and resolve issues related to system integrations, data synchronisation and workflows * Liaise with support partners for issues that require 2nd/ 3rd line support and coordinate activities between partners where required * Collaborate with internal teams to analyse business requirements and implement solutions
        Rate - £500 / £525 Outside IR35 - Duration - 3 months - Location - Fully remote - Sanderson is currently working with an organisation who require a D365 Business Central/Shopify Support Engineer to bridge ERP and e-commerce platforms, ensuring seamless integration, smooth operations and excellent support for business users. The ideal candidate will have strong technical expertise, problem solving skills and a customer focused mindset. Key Responsibilities * Provide technical support for Microsoft Dynamics 365 Business Central and Shopify platforms * Troubleshoot and resolve issues related to system integrations, data synchronisation and workflows * Liaise with support partners for issues that require 2nd/ 3rd line support and coordinate activities between partners where required * Collaborate with internal teams to analyse business requirements and implement solutions
        more
        FEATURED

        Salesforce Marketing Cloud Engineer

        Stackstudio Digital Ltd.
        Paddington, West London (W2)
        From £450 to £500 per day
        Strong understanding and experience in SFMC API development.
        Strong understanding and experience in SFMC API development.
        NEW
        Who are we? Look at the latest headlines and you will see something Ki insures. Think space shuttles, world tours, wind farms, and even footballers legs. Kis mission is simple. Digitally disrupt and revolutionise a 335-year-old market. Working with Google and UCL, Ki has created a platform that uses algorithms, machine learning and large language models to give insurance brokers quotes in seconds, rather than days. Ki is proudly the biggest global algorithmic insurance carrier. It is the fastest growing syndicate in the Lloyd's of London market, and the first ever to make $100m in profit in 3 years. Kis teams have varied backgrounds and work together in an agile, cross-functional way to build the very best experience for its customers. Ki has big ambitions but needs more excellent minds to challenge the status-quo and help it reach new horizons. Where you come in?
        Who are we? Look at the latest headlines and you will see something Ki insures. Think space shuttles, world tours, wind farms, and even footballers legs. Kis mission is simple. Digitally disrupt and revolutionise a 335-year-old market. Working with Google and UCL, Ki has created a platform that uses algorithms, machine learning and large language models to give insurance brokers quotes in seconds, rather than days. Ki is proudly the biggest global algorithmic insurance carrier. It is the fastest growing syndicate in the Lloyd's of London market, and the first ever to make $100m in profit in 3 years. Kis teams have varied backgrounds and work together in an agile, cross-functional way to build the very best experience for its customers. Ki has big ambitions but needs more excellent minds to challenge the status-quo and help it reach new horizons. Where you come in?
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        Appium for mobile automation strong communication skills collaboration with development and DevOps teams test automation strategy execution API testing proficiency with Postman and experience managing CICD pipelines under deadlinedriven environments - Good to Have Skills : API/Microservices RestAssured Testing, Mobility Testing (iOS, Android, Streaming)
        Appium for mobile automation strong communication skills collaboration with development and DevOps teams test automation strategy execution API testing proficiency with Postman and experience managing CICD pipelines under deadlinedriven environments - Good to Have Skills : API/Microservices RestAssured Testing, Mobility Testing (iOS, Android, Streaming)
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        Liaise and collaborate with internal stakeholders such as TAs, SMEs and other discipline Engineers to deliver structural engineering services ensuring compliance with industry design standards (ISO, API, DNV, NORSOK, etc.) and certification requirements.
        Liaise and collaborate with internal stakeholders such as TAs, SMEs and other discipline Engineers to deliver structural engineering services ensuring compliance with industry design standards (ISO, API, DNV, NORSOK, etc.) and certification requirements.
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        Youll design, implement, and maintain integration solutions that power our business operations, leveraging your expertise in both traditional EDI standards and modern API integrations. * Collaborate with internal teams and external partners to gather requirements and ensure compliance with API standards * Monitor and troubleshoot EDI/API transactions, resolving errors to ensure smooth information flow * Create and maintain documentation for EDI processes, API specifications, and trading partner profiles * Provide training and support to internal users on EDI/API processes and best practices * Experience with API-based integrations and EDI platforms * Solid understanding of HTTP, authentication (OAuth2, JWT), and API lifecycle management
        Youll design, implement, and maintain integration solutions that power our business operations, leveraging your expertise in both traditional EDI standards and modern API integrations. * Collaborate with internal teams and external partners to gather requirements and ensure compliance with API standards * Monitor and troubleshoot EDI/API transactions, resolving errors to ensure smooth information flow * Create and maintain documentation for EDI processes, API specifications, and trading partner profiles * Provide training and support to internal users on EDI/API processes and best practices * Experience with API-based integrations and EDI platforms * Solid understanding of HTTP, authentication (OAuth2, JWT), and API lifecycle management
        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
        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
        Design and implement complex data flows, API integrations, and background processing systems that handle high-volume operations reliably while maintaining system performance and data integrity * API design and implementation
        Design and implement complex data flows, API integrations, and background processing systems that handle high-volume operations reliably while maintaining system performance and data integrity * API design and implementation
        more
        Extend capabilities through code Leverage with scripting languages such as Python and R to enhance BPM solutions with data processing, analytics integration, API connections, and intelligent automation that creates differentiated value
        Extend capabilities through code Leverage with scripting languages such as Python and R to enhance BPM solutions with data processing, analytics integration, API connections, and intelligent automation that creates differentiated value
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        Facilitate Onboarding: Youll be responsible for the technical onboarding of new clients, guiding them through API documentation, troubleshooting integration issues, and ensuring a seamless transition.
        Facilitate Onboarding: Youll be responsible for the technical onboarding of new clients, guiding them through API documentation, troubleshooting integration issues, and ensuring a seamless transition.
        more
        Join Proton and build a better internet where privacy is the default - At Proton, we believe that privacy is a fundamental human right and the cornerstone of democracy. Since our inception in 2014, founded by a team of scientists from CERN, we have dedicated ourselves to providing free and open-source technology to millions worldwide, ensuring access to privacy, security, and freedom online. Our journey began with Proton Mail, the largest secure email service globally, and has since expanded to include Proton VPN, Proton Calendar, Proton Drive, and Proton Pass. These tools empower individuals and organizations to take control of their personal data, break away from Big Tech's invasive practices, and defeat censorship. Our work impacts hundreds of millions of lives, from activists on the front lines defending freedom to leaders in governments protecting sensitive infor
        Join Proton and build a better internet where privacy is the default - At Proton, we believe that privacy is a fundamental human right and the cornerstone of democracy. Since our inception in 2014, founded by a team of scientists from CERN, we have dedicated ourselves to providing free and open-source technology to millions worldwide, ensuring access to privacy, security, and freedom online. Our journey began with Proton Mail, the largest secure email service globally, and has since expanded to include Proton VPN, Proton Calendar, Proton Drive, and Proton Pass. These tools empower individuals and organizations to take control of their personal data, break away from Big Tech's invasive practices, and defeat censorship. Our work impacts hundreds of millions of lives, from activists on the front lines defending freedom to leaders in governments protecting sensitive infor
        more
        Main Purpose Trafigura is undergoing an exciting Digital Transformation, developing innovative AI technologies to change the way we work in Commodities Trading. The Document AI team is a key pillar of this initiative, unlocking data-rich proprietary documents to enable high-value process optimisation and data science use cases. We are seeking a Senior Product Engineer to work closely with our AI team to build the applications and systems that bring AI capabilities to our trading operations. You will be building robust AI/LLM applications that directly impacts trading operations. This is a hands-on Individual Contributor role. Required Qualifications * 5-8+ years of experience building production backend systems and APIs * Functional frontend skills - comfortable with React, TypeScript, and building user interfaces when needed
        Main Purpose Trafigura is undergoing an exciting Digital Transformation, developing innovative AI technologies to change the way we work in Commodities Trading. The Document AI team is a key pillar of this initiative, unlocking data-rich proprietary documents to enable high-value process optimisation and data science use cases. We are seeking a Senior Product Engineer to work closely with our AI team to build the applications and systems that bring AI capabilities to our trading operations. You will be building robust AI/LLM applications that directly impacts trading operations. This is a hands-on Individual Contributor role. Required Qualifications * 5-8+ years of experience building production backend systems and APIs * Functional frontend skills - comfortable with React, TypeScript, and building user interfaces when needed
        more
        NEW
        Working at Atlassian - Atlassians can choose where they work whether in an office, from home, or a combination of the two. That way, Atlassians have more control over supporting their family, personal goals, and other priorities. We can hire people in any country where we have a legal entity. Your future team - As a Principal Forward Deployed Engineer (FDE) at Atlassian, youll be at the forefront of applied AI, working directly with customers and cross-functional teams to deliver innovative, AI-powered solutions. The FDE team partners with top organizations across industries, helping them leverage Atlassians AI capabilities to solve complex, real-world problems. Youll collaborate with product, engineering, and design, rapidly growing your technical and domain expertise while making a tangible impact on business outcomes.
        Working at Atlassian - Atlassians can choose where they work whether in an office, from home, or a combination of the two. That way, Atlassians have more control over supporting their family, personal goals, and other priorities. We can hire people in any country where we have a legal entity. Your future team - As a Principal Forward Deployed Engineer (FDE) at Atlassian, youll be at the forefront of applied AI, working directly with customers and cross-functional teams to deliver innovative, AI-powered solutions. The FDE team partners with top organizations across industries, helping them leverage Atlassians AI capabilities to solve complex, real-world problems. Youll collaborate with product, engineering, and design, rapidly growing your technical and domain expertise while making a tangible impact on business outcomes.
        more
        NEW

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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 52 contract API jobs within 20 miles of London available on JustEngineers right now.

        Where in London are these contract jobs?
        You can find contract jobs in City of London, South East London, Uxbridge.

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