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        Date posted




        Last 14 days
        838

        837 API jobs in UK + 20 miles

        Senior Microsoft Dynamics 365 CRM Developer

        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
        software embedded in HSMs, client-side tools, API libraries - Full-stack development: embedded code & drivers, to client-side tools & API libraries
        software embedded in HSMs, client-side tools, API libraries - Full-stack development: embedded code & drivers, to client-side tools & API libraries
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        NEW

        Website Platform Manager

        Kingspan
        Leominster, Herefordshire, HR6 9LA
        Competitive Salary
        Strong understanding of front-end frameworks (React, Next.js) and API integrations.
        Strong understanding of front-end frameworks (React, Next.js) and API integrations.
        NEWPREMIUM
        Large Language API's (from 2021) * Assisting with the maintenance and iteration of a FastAPI-based web API hosted on AWS.
        Large Language API's (from 2021) * Assisting with the maintenance and iteration of a FastAPI-based web API hosted on AWS.
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        NEW
        To complement the efficient networking architecture, you will help designing Infrastructure-as-a-Service virtual network orchestration API-driven services to support tenants workloads security and performance SLAs for BMaaS, VMaaS and Kubernetes. * Hands-on experience developing secure and performant API-driven services (gRPC, ReST with transport encryption and strong authentication)
        To complement the efficient networking architecture, you will help designing Infrastructure-as-a-Service virtual network orchestration API-driven services to support tenants workloads security and performance SLAs for BMaaS, VMaaS and Kubernetes. * Hands-on experience developing secure and performant API-driven services (gRPC, ReST with transport encryption and strong authentication)
        more
        NEW
        Join a dynamic team in Digital Business Banking (DBB) UK, a leading service empowering small to medium-sized businesses to manage their banking online via web, mobile, and API channels.
        Join a dynamic team in Digital Business Banking (DBB) UK, a leading service empowering small to medium-sized businesses to manage their banking online via web, mobile, and API channels.
        more
        PREMIUM

        Senior Solution Architect

        UK Health Security Agency
        Canary Wharf, E14 4PU
        From £54,416 to £68,344 per annum
        The United Kingdom Health Security Agency (UKHSA) is a system leader for health security; taking action internationally to strengthen global health security, providing trusted advice to government and the public and reducing inequalities in the way different communities experience and are impacted by infectious disease, environmental hazards, and other threats to health. UKHSAs remit, as an agency with a global-to-local reach, is to protect the health of the nation from infectious diseases and other external threats to health. * Prevent: anticipate threats to health and help build the nations readiness, defences and health security * Detect: use cutting edge environmental and biological surveillance to proactively detect and monitor infectious diseases and threats to health * Analyse: use world-class science and data analytics to assess and continually monitor threats
        The United Kingdom Health Security Agency (UKHSA) is a system leader for health security; taking action internationally to strengthen global health security, providing trusted advice to government and the public and reducing inequalities in the way different communities experience and are impacted by infectious disease, environmental hazards, and other threats to health. UKHSAs remit, as an agency with a global-to-local reach, is to protect the health of the nation from infectious diseases and other external threats to health. * Prevent: anticipate threats to health and help build the nations readiness, defences and health security * Detect: use cutting edge environmental and biological surveillance to proactively detect and monitor infectious diseases and threats to health * Analyse: use world-class science and data analytics to assess and continually monitor threats
        more
        NEW

        Lead .Net Software Developer

        Hireful
        Milton Keynes, Buckinghamshire
        £65k - £75k base salary plus Bonus and awesome benefits
        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
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        NEWFEATURED
        Job Description - At Aberdeen, our ambition is to be the UKs leading Wealth & Investments group. Strengthening talent and culture is one of our strategic priorities. We strive to make Aberdeen a great place to work so that we can attract and retain the industrys best talent. Our people put our stakeholders at the heart of everything they do by helping us to make a positive difference to the lives of our clients, customers, colleagues, shareholders, and society. We are focused on growing our direct and advised wealth platforms and repositioning our specialist asset management business to meet client demand. We are committed to providing excellent client service, supported by leading technology and talent. * interactive investor, the UKs second largest direct-to-consumer investment platform, enables individuals in the UK to plan, save, and invest in the way that works f
        Job Description - At Aberdeen, our ambition is to be the UKs leading Wealth & Investments group. Strengthening talent and culture is one of our strategic priorities. We strive to make Aberdeen a great place to work so that we can attract and retain the industrys best talent. Our people put our stakeholders at the heart of everything they do by helping us to make a positive difference to the lives of our clients, customers, colleagues, shareholders, and society. We are focused on growing our direct and advised wealth platforms and repositioning our specialist asset management business to meet client demand. We are committed to providing excellent client service, supported by leading technology and talent. * interactive investor, the UKs second largest direct-to-consumer investment platform, enables individuals in the UK to plan, save, and invest in the way that works f
        more
        NEW
        Code quality and API-First principles are at the heart of all our development. * Deliver high efficiency, high availability, concurrent and fault tolerant software systems using API-First principles. * An interest in setting strategy and direction, backed by real-work experience, ideally in an API-First setting. * Experience designing, building, and deploying scalable micro-services using API-First principles using at least one of REST/gRPC. * Strong understanding of RESTful API design principles and best practices. * Experience with API authentication and authorization mechanisms (e.g., OAuth, JWT). * Experience with API gateway technologies (e.g., Apigee, Kong) is beneficial.
        Code quality and API-First principles are at the heart of all our development. * Deliver high efficiency, high availability, concurrent and fault tolerant software systems using API-First principles. * An interest in setting strategy and direction, backed by real-work experience, ideally in an API-First setting. * Experience designing, building, and deploying scalable micro-services using API-First principles using at least one of REST/gRPC. * Strong understanding of RESTful API design principles and best practices. * Experience with API authentication and authorization mechanisms (e.g., OAuth, JWT). * Experience with API gateway technologies (e.g., Apigee, Kong) is beneficial.
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        NEW

        Global Claims, IT Solutions Leader

        MARSH CORPORATE SERVICES LIMITED
        The City, EC3R 5BU
        Discretionary Bonus, Pension Scheme & Private Healthcare
        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.
        more
        NEWPREMIUM
        Performing automation and API testing when required. * API automation testing using JavaScript * Experience in API and integration testing
        Performing automation and API testing when required. * API automation testing using JavaScript * Experience in API and integration testing
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        NEW

        Student Systems Developer

        London School of Science & Technology Ltd T/a LSST
        Park Royal, W3 0XA
        Unspecified
        Authentication & Integration Services API integrations, SSO (Single Sign-On), and system interoperability with University IT infrastructure.
        Authentication & Integration Services API integrations, SSO (Single Sign-On), and system interoperability with University IT infrastructure.
        more
        You'll drive key capabilities like multi-tenancy, RBAC, and API experiences to meet the needs of our largest enterprise customers and MSSP partners. As a Lead Product Manager, your primary responsibility will be to own critical enterprise capabilities including multi-tenancy experiences, user access management (RBAC and data access control), API experiences, and foundational account infrastructure. * Strong understanding of enterprise platform requirements, particularly in multi-tenant environments, role-based access control (RBAC), identity and access management (IAM), and API development.
        You'll drive key capabilities like multi-tenancy, RBAC, and API experiences to meet the needs of our largest enterprise customers and MSSP partners. As a Lead Product Manager, your primary responsibility will be to own critical enterprise capabilities including multi-tenancy experiences, user access management (RBAC and data access control), API experiences, and foundational account infrastructure. * Strong understanding of enterprise platform requirements, particularly in multi-tenant environments, role-based access control (RBAC), identity and access management (IAM), and API development.
        more
        NEW

        Solution Architect

        Stott & May Professional Search Limited
        NN1, Northampton
        £415 - £467.50 per day
        Role Title: Banking Solution Architect - Location: Knutsford or Northampton - Duration: Until 31/12/2025 - Day Rate: £467.50 Inside IR35 - We are seeking an experienced Solution Architect to provide technical leadership across core banking programmes, focusing on current account journeys, including loans, account switching, and related operational platforms. The successful candidate will be responsible for designing, developing, and implementing scalable, resilient, and secure technology solutions to address complex business challenges within the banking landscape. This role requires close collaboration with stakeholders across business and technology functions, ownership of architectural delivery, and guidance on integration strategies, balancing cloud adoption, automation, and regulatory compliance. Lead the design and technical architecture for current accounts, lo
        Role Title: Banking Solution Architect - Location: Knutsford or Northampton - Duration: Until 31/12/2025 - Day Rate: £467.50 Inside IR35 - We are seeking an experienced Solution Architect to provide technical leadership across core banking programmes, focusing on current account journeys, including loans, account switching, and related operational platforms. The successful candidate will be responsible for designing, developing, and implementing scalable, resilient, and secure technology solutions to address complex business challenges within the banking landscape. This role requires close collaboration with stakeholders across business and technology functions, ownership of architectural delivery, and guidance on integration strategies, balancing cloud adoption, automation, and regulatory compliance. Lead the design and technical architecture for current accounts, lo
        more
        NEW
        Solution Architect - Contract Opportunity - We're hiring a Solution Architect to support a major platform transformation programme focused on pension products. This role involves working closely with the IT teams and internal stakeholders to design and deliver an integrated administration platform. Key Details * Location: Hybrid - Leeds (2 days/week on-site) * Rate: £500-£600 per day (Outside IR35) * Contract Length: 6 months (likely extension) * Start Date: ASAP * Working Arrangements: Hybrid (2-3 days on site) Role Summary - You'll be responsible for defining solution architectures, guiding implementation, and ensuring alignment with business and technical goals. The role requires strong collaboration with internal teams and external vendors, with a focus on cloud-native design, integration, and enterprise governance. Skills & Experience Required
        Solution Architect - Contract Opportunity - We're hiring a Solution Architect to support a major platform transformation programme focused on pension products. This role involves working closely with the IT teams and internal stakeholders to design and deliver an integrated administration platform. Key Details * Location: Hybrid - Leeds (2 days/week on-site) * Rate: £500-£600 per day (Outside IR35) * Contract Length: 6 months (likely extension) * Start Date: ASAP * Working Arrangements: Hybrid (2-3 days on site) Role Summary - You'll be responsible for defining solution architectures, guiding implementation, and ensuring alignment with business and technical goals. The role requires strong collaboration with internal teams and external vendors, with a focus on cloud-native design, integration, and enterprise governance. Skills & Experience Required
        more
        NEW

        Solution Architect

        Stackstudio Digital Ltd.
        CV34, Warwick
        From £500 to £570 per day
        Role/Job Title: Solution Architect - Work Location: Warwick, UK (3 days) Role Overview - The Solution Architect will be responsible for creating a business case to identify and select the most appropriate options for a Software as a Service (SaaS) application, whether available in the market or developed in-house. This role involves gathering and analysing requirements, designing architectural solutions, evaluating proposals through Request for Proposals (RFP), ensuring Non-Functional Requirements (NFR) are met, addressing security and IT controls, creating architectural artefacts, and leading the technical aspects of the SaaS deployment across multiple domains and Identity Provider (IdP) Single Sign-On (SSO) integrations. Additionally, the architect will understand business functional requirements to influence option selection effectively.
        Role/Job Title: Solution Architect - Work Location: Warwick, UK (3 days) Role Overview - The Solution Architect will be responsible for creating a business case to identify and select the most appropriate options for a Software as a Service (SaaS) application, whether available in the market or developed in-house. This role involves gathering and analysing requirements, designing architectural solutions, evaluating proposals through Request for Proposals (RFP), ensuring Non-Functional Requirements (NFR) are met, addressing security and IT controls, creating architectural artefacts, and leading the technical aspects of the SaaS deployment across multiple domains and Identity Provider (IdP) Single Sign-On (SSO) integrations. Additionally, the architect will understand business functional requirements to influence option selection effectively.
        more
        NEW

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        What is the average salary for API in UK?

        Average salary per year
        £57,499

        The average salary for a API in UK is £57,499. API in UK salaries range from £47,499 to £77,499.

        Frequently Asked Questions

        How many API jobs are there in UK?
        There are 837 API jobs within 20 miles of UK available on CWJobs right now.

        Where in UK are these jobs?
        You can find jobs in South East, Midlands, North West.

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