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        City of London
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        Last 3 days
        127



        91 Contract API jobs in London + 20 miles

        Technical BA with integrations

        Fusion Practices Ltd
        London
        Competitive
        Job Information - Date Opened - 30/04/2025 - Industry - IT Services - Job Type - Full time - Work Experience - 9+ years - City - Farringdon - Province - City of London - Country - United Kingdom - Postal Code - EX5 - We are seeking a technically proficient Technical Business Analyst with strong experience in Oracle ERP systems , Azure cloud integrations , and a working knowledge of Python . The ideal candidate will act as a liaison between business stakeholders and technical teams, ensuring seamless integration of enterprise applications and data solutions. * Gather, document, and analyze business and technical requirements across departments. * Collaborate with technical teams to integrate Oracle ERP with Azure services and third-party systems. * Analyze data flow between systems and support data mapping for integration projects. * Develop functional and technical sp
        Job Information - Date Opened - 30/04/2025 - Industry - IT Services - Job Type - Full time - Work Experience - 9+ years - City - Farringdon - Province - City of London - Country - United Kingdom - Postal Code - EX5 - We are seeking a technically proficient Technical Business Analyst with strong experience in Oracle ERP systems , Azure cloud integrations , and a working knowledge of Python . The ideal candidate will act as a liaison between business stakeholders and technical teams, ensuring seamless integration of enterprise applications and data solutions. * Gather, document, and analyze business and technical requirements across departments. * Collaborate with technical teams to integrate Oracle ERP with Azure services and third-party systems. * Analyze data flow between systems and support data mapping for integration projects. * Develop functional and technical sp
        more
        Starling is the UKs first and leading digital bank on a mission to fix banking! Our vision is fast technology, fair service, and honest values. We built a new kind of bank because we knew technology had the power to help people save, spend and manage their money in a new and transformative way. Were a fully licensed UK bank with the culture and spirit of a fast-moving, disruptive tech company. Were a bank, but better: fairer, easier to use and designed to demystify money for everyone. We employ more than 3,000 people across our London, Southampton, Cardiff and Manchester offices. Our technologists are at the very heart of Starling and enjoy working in a fast-paced environment that is all about building things, creating new stuff, and disruptive technology that keeps us on the cutting edge of fintech.
        Starling is the UKs first and leading digital bank on a mission to fix banking! Our vision is fast technology, fair service, and honest values. We built a new kind of bank because we knew technology had the power to help people save, spend and manage their money in a new and transformative way. Were a fully licensed UK bank with the culture and spirit of a fast-moving, disruptive tech company. Were a bank, but better: fairer, easier to use and designed to demystify money for everyone. We employ more than 3,000 people across our London, Southampton, Cardiff and Manchester offices. Our technologists are at the very heart of Starling and enjoy working in a fast-paced environment that is all about building things, creating new stuff, and disruptive technology that keeps us on the cutting edge of fintech.
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        We're looking for an experienced Product Owner to shape and deliver an exceptional customer experience for our retail CFD and spread betting products. In this high-impact role, reporting to the Chief Product Officer, you'll optimize our product development lifecycle through close collaboration with product and development teams. Who we are - We are Trade Nation. We help our customers power up their trading through killer insights, transparent costs, and fairer ways to trade. Were innovators, and proud of it. And weve grown a lot in our decade as a market-leading low-cost trading powerhouse. Our reach is global through our teams in the UK, Australia, South Africa, Seychelles and The Bahamas. Founded on transparency, forged in trust and powered by people, were committed to empowering our customers to outperform the markets. How?
        We're looking for an experienced Product Owner to shape and deliver an exceptional customer experience for our retail CFD and spread betting products. In this high-impact role, reporting to the Chief Product Officer, you'll optimize our product development lifecycle through close collaboration with product and development teams. Who we are - We are Trade Nation. We help our customers power up their trading through killer insights, transparent costs, and fairer ways to trade. Were innovators, and proud of it. And weve grown a lot in our decade as a market-leading low-cost trading powerhouse. Our reach is global through our teams in the UK, Australia, South Africa, Seychelles and The Bahamas. Founded on transparency, forged in trust and powered by people, were committed to empowering our customers to outperform the markets. How?
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        At least 2 years as an SA or at least 4 years in a similar customer-facing role, for example as a technical consultant, solution engineer or implementation engineer at an API-first (REST, GraphQL) SaaS company.
        At least 2 years as an SA or at least 4 years in a similar customer-facing role, for example as a technical consultant, solution engineer or implementation engineer at an API-first (REST, GraphQL) SaaS company.
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        Experience in API testing (Postman, Swagger, REST API testing)
        Experience in API testing (Postman, Swagger, REST API testing)
        NEW
        You can design a RESTful API and list all the pros and cons of your design * You have an API-first product mindset: you care about customer outcomes and you like to listen to their use-cases before diving into code
        You can design a RESTful API and list all the pros and cons of your design * You have an API-first product mindset: you care about customer outcomes and you like to listen to their use-cases before diving into code
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        Partner with Engineering for API-driven integrations and maintain data connectors to our dashboard. Our API-first platform provides fully automated validators, staking & DeFi protocols access, and comprehensive data and commission management.
        Partner with Engineering for API-driven integrations and maintain data connectors to our dashboard. Our API-first platform provides fully automated validators, staking & DeFi protocols access, and comprehensive data and commission management.
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        We are now scaling up with applications designed for major meeting platforms, real-time communication channels, and a powerful Public API to extend our functionality to a broader set of applications.
        We are now scaling up with applications designed for major meeting platforms, real-time communication channels, and a powerful Public API to extend our functionality to a broader set of applications.
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        36 exact matches jobs are outside your preferred location

        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.
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        NEW

        Security Architect

        Queen Square Recruitment Limited
        Reading, Berkshire
        From £700 to £750 per day
        Expert-level knowledge of IAM, network security, encryption, API and application security, container security, and SIEM strategies.
        Expert-level knowledge of IAM, network security, encryption, API and application security, container security, and SIEM strategies.
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        NEW

        JML Solution Architect

        Infoplus Technologies UK Ltd
        Wokingham, Berkshire
        From £500 to £550 per day
        Role/Job title - Work Location - Wokingham - Role type - Permanent/Fixed Term/ Contracting - Contracting - Mode of working Hybrid /office based - Hybrid - If Hybrid, how many days are required in office? 3 days a week - Duration of assignment - 6 months - To be published on job boards from below onwards - The Role - The JML Solution Architect will be responsible for designing and implementing a solution to manage the access rights of their employees and stakeholders more efficiently and securely. The Joiner, Mover, and Leaver (JML) process has emerged as a pivotal framework within Identity & Access Management (IAM) to tackle this challenge head-on. It encompasses a comprehensive approach to managing user access throughout their lifecycle within an organization. This solution will integrate multiple data sources, automate workflows, and provide valuable insights to inf
        Role/Job title - Work Location - Wokingham - Role type - Permanent/Fixed Term/ Contracting - Contracting - Mode of working Hybrid /office based - Hybrid - If Hybrid, how many days are required in office? 3 days a week - Duration of assignment - 6 months - To be published on job boards from below onwards - The Role - The JML Solution Architect will be responsible for designing and implementing a solution to manage the access rights of their employees and stakeholders more efficiently and securely. The Joiner, Mover, and Leaver (JML) process has emerged as a pivotal framework within Identity & Access Management (IAM) to tackle this challenge head-on. It encompasses a comprehensive approach to managing user access throughout their lifecycle within an organization. This solution will integrate multiple data sources, automate workflows, and provide valuable insights to inf
        more
        NEW

        C# Engineer (Blazor Experience)

        Hays
        MK1, Milton Keynes
        £350.0 - £400.0 per day + £350 - 400 per day Outside IR35
        Role OverviewOur client based in Milton Keynes is looking for a passionate and skilled C# Engineer with proven experience in Blazor to join their growing development team. This is a fantastic opportunity to work on high-performance web applications in a collaborative and innovative environment. You'll be working closely with a talented team of developers, designers, and product managers to deliver cutting-edge solutions that drive real value. Responsibilities * Build and maintain interactive, scalable web applications using Blazor and .NET technologies. * Collaborate with cross-functional teams to define, design, and implement new features. * Ensure code quality through code reviews, unit testing, and adherence to best practices. * Troubleshoot and resolve issues across the full stack. * Contribute to technical discussions and share knowledge with the wider team.
        Role OverviewOur client based in Milton Keynes is looking for a passionate and skilled C# Engineer with proven experience in Blazor to join their growing development team. This is a fantastic opportunity to work on high-performance web applications in a collaborative and innovative environment. You'll be working closely with a talented team of developers, designers, and product managers to deliver cutting-edge solutions that drive real value. Responsibilities * Build and maintain interactive, scalable web applications using Blazor and .NET technologies. * Collaborate with cross-functional teams to define, design, and implement new features. * Ensure code quality through code reviews, unit testing, and adherence to best practices. * Troubleshoot and resolve issues across the full stack. * Contribute to technical discussions and share knowledge with the wider team.
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        NEW
        HybridPython Developer 9-12 Month Contract (Outside IR35) * Location: Hybrid (1 day a week in London, UK) * Contract Duration: 9-12 months * Rate: £375-£450 per day (Outside IR35) Exciting Projects: Work on innovative digital solutions in a start-up environment. Flexible Working: Enjoy a hybrid role with one day a week in London. Collaborative Culture: Be part of a talented, supportive team that values your input. We are recruiting on behalf of an innovative Insurance company looking for experienced Python Developers. This is an excellent opportunity for experienced developers eager to work on exciting projects in a dynamic and fast-paced environment. Our client is a rapidly expanding start-up backed by a major insurer and specialising in pay-as-you-go car insurance growing quicklywith over a million customers.
        HybridPython Developer 9-12 Month Contract (Outside IR35) * Location: Hybrid (1 day a week in London, UK) * Contract Duration: 9-12 months * Rate: £375-£450 per day (Outside IR35) Exciting Projects: Work on innovative digital solutions in a start-up environment. Flexible Working: Enjoy a hybrid role with one day a week in London. Collaborative Culture: Be part of a talented, supportive team that values your input. We are recruiting on behalf of an innovative Insurance company looking for experienced Python Developers. This is an excellent opportunity for experienced developers eager to work on exciting projects in a dynamic and fast-paced environment. Our client is a rapidly expanding start-up backed by a major insurer and specialising in pay-as-you-go car insurance growing quicklywith over a million customers.
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        NEW
        Lead the design and development of automated UI and API testing solutions using SpecFlow and Playwright, written in C# .NET.
        Lead the design and development of automated UI and API testing solutions using SpecFlow and Playwright, written in C# .NET.
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        NEWFEATURED
        We want you to #JOINTHEREBELLION! For 30 years weve been independently developing and publishing incredible video games at our multiple studios founded by Jason & Chris Kingsley, but Rebellion is more than just games. We have our own film studio, we create board games, publish books, and through 2000AD, publish comics and graphic novels such as the amazing Judge Dredd. We are seeking an experienced Experienced JavaScript Developer (Full Stack) to join our Code team, to help build and support internal and external web applications and APIs to support our game engine team. The successful candidate will join a small team and user their specialist JavaScript knowledge to be involved in the entire software development lifecycle, from requirements gathering and system design to implementation, testing, deployment, and maintenance.
        We want you to #JOINTHEREBELLION! For 30 years weve been independently developing and publishing incredible video games at our multiple studios founded by Jason & Chris Kingsley, but Rebellion is more than just games. We have our own film studio, we create board games, publish books, and through 2000AD, publish comics and graphic novels such as the amazing Judge Dredd. We are seeking an experienced Experienced JavaScript Developer (Full Stack) to join our Code team, to help build and support internal and external web applications and APIs to support our game engine team. The successful candidate will join a small team and user their specialist JavaScript knowledge to be involved in the entire software development lifecycle, from requirements gathering and system design to implementation, testing, deployment, and maintenance.
        more

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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 91 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, South West London, Central London.

        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.