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        299 Permanent API jobs in London + 20 miles

        Linux Admin - London, UK

        Randstad Digital
        London
        £50000 - £55000 per annum
        Experience of Python, Bash, API's
        Experience of Python, Bash, API's
        FEATURED

        Senior Identity & Access Management Engineer – Typescript, C#, AWS IAM

        Smart Sourcer Limited
        City of London (EC1)
        From £85,000 to £90,000 per annum + bonus + benefits
        Deliver secure login, SSO, MFA, RBAC/ABAC, and tenant isolation at scale, leveraging AWS services (Lambda, IAM, CloudFront, API Gateway, CDK) Solid AWS expertise (IAM, Lambda, API Gateway, CDK)
        Deliver secure login, SSO, MFA, RBAC/ABAC, and tenant isolation at scale, leveraging AWS services (Lambda, IAM, CloudFront, API Gateway, CDK) Solid AWS expertise (IAM, Lambda, API Gateway, CDK)
        more

        Director of Technology Architecture and Data

        Henderson Scott
        North West London, London, NW1 7AW
        £125000 - £135000 per annum + Hybrid, 30 Days AL,
        Oversee cloud architecture (primarily Microsoft Azure), integration patterns, and API frameworks. * API management, data architecture, integration patterns
        Oversee cloud architecture (primarily Microsoft Azure), integration patterns, and API frameworks. * API management, data architecture, integration patterns
        more
        NEWFEATURED
        As a Software Engineer first, you will have deep expertise in at least one programming language (Python, Node.js, Java, JavaScript, TypeScript, React) and proven experience in productionising GenAI solutions, including integrating LLMs, LangChain, OpenAI API, or Claude.
        As a Software Engineer first, you will have deep expertise in at least one programming language (Python, Node.js, Java, JavaScript, TypeScript, React) and proven experience in productionising GenAI solutions, including integrating LLMs, LangChain, OpenAI API, or Claude.
        more
        Work across core AWS services (e.g., Lambda, DynamoDB, S3, CloudWatch, IAM, API Gateway) to support and extend contact centre functionality. * Hands-on experience with AWS services such as Lambda, S3, IAM, CloudWatch, DynamoDB, API Gateway.
        Work across core AWS services (e.g., Lambda, DynamoDB, S3, CloudWatch, IAM, API Gateway) to support and extend contact centre functionality. * Hands-on experience with AWS services such as Lambda, S3, IAM, CloudWatch, DynamoDB, API Gateway.
        more
        Our client is seeking an experienced Technical Architect with strong expertise in integration architecture, systems design best practice, and API design. * Define security standards for all integration points, including OAuth, API key management, encryption, and network segmentation within an Azure environment. * Advanced knowledge of API implementation, message queues (e.g., Azure Service Bus, Kafka), and event-driven architecture. * Deep expertise in RESTful API design, API gateways (ideally Azure API Management), and the OpenAPI specification.
        Our client is seeking an experienced Technical Architect with strong expertise in integration architecture, systems design best practice, and API design. * Define security standards for all integration points, including OAuth, API key management, encryption, and network segmentation within an Azure environment. * Advanced knowledge of API implementation, message queues (e.g., Azure Service Bus, Kafka), and event-driven architecture. * Deep expertise in RESTful API design, API gateways (ideally Azure API Management), and the OpenAPI specification.
        more
        Automation skills (PowerShell, Graph API) for identity lifecycle and migration tasks.
        Automation skills (PowerShell, Graph API) for identity lifecycle and migration tasks.

        Full Stack Developer

        Loopla
        Euston, North West London (NW1), NW1 2RT
        Competitive
        Vitest/Jest, Docker, CI/CD (GitHub Actions), Shadcn/MUI, MongoDB, microservices, Cloudflare/CDNs, Firebase, Google Maps API, startup experience.
        Vitest/Jest, Docker, CI/CD (GitHub Actions), Shadcn/MUI, MongoDB, microservices, Cloudflare/CDNs, Firebase, Google Maps API, startup experience.
        more
        Leverage AWS services (Lambda, API Gateway, SQS/SNS, Step Functions, S3, IAM) to deliver secure, event-driven systems. * Deep knowledge of API design, integration, and auth (OAuth2, JWT), with end-to-end performance focus.
        Leverage AWS services (Lambda, API Gateway, SQS/SNS, Step Functions, S3, IAM) to deliver secure, event-driven systems. * Deep knowledge of API design, integration, and auth (OAuth2, JWT), with end-to-end performance focus.
        more
        The role is around 50% Manuel and 50% automation with a mix of UI and API testing. * Perform exploratory and automated testing across API and UI * UI and API automation knowledge
        The role is around 50% Manuel and 50% automation with a mix of UI and API testing. * Perform exploratory and automated testing across API and UI * UI and API automation knowledge
        more

        Technical Writer

        Oscar Associates (UK) Limited
        London
        £40000 - £50000 per annum
        Audit all existing documentation including the Knowledge Base, API references, onboarding flows, and training materials * Identify the purpose of each piece of content and map it to a clear, intuitive documentation structure * Curiosity about how systems work and the confidence to explore API docs, UI flows, and business logic
        Audit all existing documentation including the Knowledge Base, API references, onboarding flows, and training materials * Identify the purpose of each piece of content and map it to a clear, intuitive documentation structure * Curiosity about how systems work and the confidence to explore API docs, UI flows, and business logic
        more

        Cyber Security Architect

        Anson Mccade
        South East London (SE1)
        From £90,000 to £120,000 per annum
        Define and implement application security standards including threat modelling, secure SDLC, API security and DevSecOps practices
        Define and implement application security standards including threat modelling, secure SDLC, API security and DevSecOps practices
        more
        PREMIUM

        Software Architect

        Bilge Adam Technologies UK Ltd
        Central London (WC1)
        From £75,000 to £90,000 per annum
        Job description - Job Role: Software/Solution Architect - We are looking to hire an experienced Software Architect. What Youll Be Doing - Youll play a key role in shaping how modern software platforms are designed, integrated, and scaled. * Designing and defining end-to-end Software Architecture * Building scalable, modular, secure platforms * Guiding developers with best practices and architectural patterns * Leading integration between cloud services, APIs, and (at times) connectivity components like telematics or infotainment * Improving performance, security, and long-term maintainability * Collaborating closely with Product and operations teams. This is a role where your technical decisions genuinely shape the future of the product. Who Were Looking For - Someone who is having software architecture experience , thinks in systems, and enjoys working with both high
        Job description - Job Role: Software/Solution Architect - We are looking to hire an experienced Software Architect. What Youll Be Doing - Youll play a key role in shaping how modern software platforms are designed, integrated, and scaled. * Designing and defining end-to-end Software Architecture * Building scalable, modular, secure platforms * Guiding developers with best practices and architectural patterns * Leading integration between cloud services, APIs, and (at times) connectivity components like telematics or infotainment * Improving performance, security, and long-term maintainability * Collaborating closely with Product and operations teams. This is a role where your technical decisions genuinely shape the future of the product. Who Were Looking For - Someone who is having software architecture experience , thinks in systems, and enjoys working with both high
        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 permanent API jobs are there in London?
        There are 299 permanent API jobs within 20 miles of London available on CWJobs right now.

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

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