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        Last 14 days
        273

        146 Permanent API jobs in London + 20 miles

        Senior Salesforce Developer

        167 Solutions Ltd
        SW1, South West London
        From £75,000 to £90,000 per annum
        Senior Salesforce Consultant / Senior Salesforce Developer / Senior Salesforce Programmer - Location: Hybrid (London / UK 23 days onsite) Salary: £75,000 - £90,000 Plus Benefits - We are hiring on behalf of our client for a Senior Salesforce Consultant to play a key role in an exciting organisation-wide Salesforce transformation. This role offers the opportunity to work across Sales Cloud, Service Cloud, Experience Cloud, and Marketing Cloud in a collaborative hybrid environment. Key Responsibilities * Lead end-to-end delivery across Sales Cloud, Service Cloud, Experience Cloud, and Marketing Cloud, from requirements gathering and solution design to configuration, development, testing, and deployment. * Deliver technical solutions in Salesforce including custom metadata, Lightning components, Apex code, APIs, and declarative automation.
        Senior Salesforce Consultant / Senior Salesforce Developer / Senior Salesforce Programmer - Location: Hybrid (London / UK 23 days onsite) Salary: £75,000 - £90,000 Plus Benefits - We are hiring on behalf of our client for a Senior Salesforce Consultant to play a key role in an exciting organisation-wide Salesforce transformation. This role offers the opportunity to work across Sales Cloud, Service Cloud, Experience Cloud, and Marketing Cloud in a collaborative hybrid environment. Key Responsibilities * Lead end-to-end delivery across Sales Cloud, Service Cloud, Experience Cloud, and Marketing Cloud, from requirements gathering and solution design to configuration, development, testing, and deployment. * Deliver technical solutions in Salesforce including custom metadata, Lightning components, Apex code, APIs, and declarative automation.
        more

        Senior Backend Engineer

        Ncounter LTD
        W1, Central London
        From £120,000 to £160,000 per annum Equity and package
        Product-Focused Backend Engineer Functional Programming & Distributed Systems - London (Hybrid) | £120,000£160,000 + Equity - At Ncounter, were partnering with a cutting-edge AI company on a mission to redefine how professionals in highly regulated industries interact with complex, multi-modal data. Their platform empowers users to deploy custom no-code AI agents that produce verifiable outputs with full transparency - ensuring trust, compliance, and control remain central to every decision. As a Backend Engineer, youll join a growing team working at the forefront of AI infrastructure. This isnt just about clean code or strong delivery - its about ownership, product intuition, and building for scale. Youll be part of a lean, high-calibre engineering function where every member contributes to planning, testing, analysis, and execution.
        Product-Focused Backend Engineer Functional Programming & Distributed Systems - London (Hybrid) | £120,000£160,000 + Equity - At Ncounter, were partnering with a cutting-edge AI company on a mission to redefine how professionals in highly regulated industries interact with complex, multi-modal data. Their platform empowers users to deploy custom no-code AI agents that produce verifiable outputs with full transparency - ensuring trust, compliance, and control remain central to every decision. As a Backend Engineer, youll join a growing team working at the forefront of AI infrastructure. This isnt just about clean code or strong delivery - its about ownership, product intuition, and building for scale. Youll be part of a lean, high-calibre engineering function where every member contributes to planning, testing, analysis, and execution.
        more
        Senior Backend Engineer - London - Hybrid (1x day a month) Salary: Up to £95k DOE - About Us - Our client is a Insurtech Unicorn looking to expand their engineering team. With the opportunity to work on existing products which have generated millions in revenue to something new changing the landscape of the insurance world, this is the perfect opportunity for a results driven and growth focused Senior engineer looking to start an ambitious business. The Role - We're looking for a Backend Engineer with strong Python skills and experience building scalable cloud-based microservices, ideally with FastAPI. You'll work in a cross-functional team delivering reliable, performant services that power our core insurance platform. What You'll Do * Design, build, and maintain Python microservices (FastAPI) in production * Own features end-to-end: design, build, test, deploy, moni
        Senior Backend Engineer - London - Hybrid (1x day a month) Salary: Up to £95k DOE - About Us - Our client is a Insurtech Unicorn looking to expand their engineering team. With the opportunity to work on existing products which have generated millions in revenue to something new changing the landscape of the insurance world, this is the perfect opportunity for a results driven and growth focused Senior engineer looking to start an ambitious business. The Role - We're looking for a Backend Engineer with strong Python skills and experience building scalable cloud-based microservices, ideally with FastAPI. You'll work in a cross-functional team delivering reliable, performant services that power our core insurance platform. What You'll Do * Design, build, and maintain Python microservices (FastAPI) in production * Own features end-to-end: design, build, test, deploy, moni
        more
        London (Hybrid 1x Per week) Salary: Up to £100k + Benefits - About Us - Our client is a Insurtech Unicorn looking to expand their engineering team. With the opportunity to work on existing products which have generated millions in revenue to something new changing the landscape of the insurance world, this is the perfect opportunity for a results driven and growth focussed Senior engineer looking to start an ambitious business. The Role - We're seeking a Lead Fullstack Engineer to own the frontend architecture and elevate the B2C user experience across our digital products. This is a high-impact role requiring technical vision, hands-on expertise, and leadership to drive innovation in a rapidly evolving environment. As part of a cross-functional, agile team, you will shape the frontend roadmap, champion best practices, and foster a culture of engineering excellence.
        London (Hybrid 1x Per week) Salary: Up to £100k + Benefits - About Us - Our client is a Insurtech Unicorn looking to expand their engineering team. With the opportunity to work on existing products which have generated millions in revenue to something new changing the landscape of the insurance world, this is the perfect opportunity for a results driven and growth focussed Senior engineer looking to start an ambitious business. The Role - We're seeking a Lead Fullstack Engineer to own the frontend architecture and elevate the B2C user experience across our digital products. This is a high-impact role requiring technical vision, hands-on expertise, and leadership to drive innovation in a rapidly evolving environment. As part of a cross-functional, agile team, you will shape the frontend roadmap, champion best practices, and foster a culture of engineering excellence.
        more

        IT Business Analyst

        Octad Recruitment Consultants (Octad Ltd )
        BR1, Bromley
        From £40,000 to £60,000 per annum Good Benefits
        This vibrant and expanding company are looking for a Business Analyst to work closely with the CEO in this exciting phase of their expansion. , The Company is an end-to-end digital solution organisation. They are looking for an experienced Business Analyst to join theirteam. In this role, youll be the bridge between business needs and technical solutions - gathering requirements, analyzing processes, and delivering actionable insights that help guide product development and business strategy. The development team are based overseas in South Africa and Thailand, with the CTO and a systems manager/UAT person being the only UK based part of the team. This role is key in that it will be a senior and key member of the development team which will include architecture and strategy decisions. Collaborate with stakeholders to gather and define business requirements
        This vibrant and expanding company are looking for a Business Analyst to work closely with the CEO in this exciting phase of their expansion. , The Company is an end-to-end digital solution organisation. They are looking for an experienced Business Analyst to join theirteam. In this role, youll be the bridge between business needs and technical solutions - gathering requirements, analyzing processes, and delivering actionable insights that help guide product development and business strategy. The development team are based overseas in South Africa and Thailand, with the CTO and a systems manager/UAT person being the only UK based part of the team. This role is key in that it will be a senior and key member of the development team which will include architecture and strategy decisions. Collaborate with stakeholders to gather and define business requirements
        more
        Senior Backend Engineer - London - Hybrid (1x day a week) Salary: Up to £80k DOE - About Us - Our client is a Insurtech Unicorn looking to expand their engineering team. With the opportunity to work on existing products which have generated millions in revenue to something new changing the landscape of the insurance world, this is the perfect opportunity for a results driven and growth focused Senior engineer looking to start an ambitious business. The Role - We're looking for a Backend Engineer with strong Python skills and experience building scalable cloud-based microservices, ideally with FastAPI. You'll work in a cross-functional team delivering reliable, performant services that power our core insurance platform. What You'll Do * Design, build, and maintain Python microservices (FastAPI) in production * Own features end-to-end: design, build, test, deploy, monit
        Senior Backend Engineer - London - Hybrid (1x day a week) Salary: Up to £80k DOE - About Us - Our client is a Insurtech Unicorn looking to expand their engineering team. With the opportunity to work on existing products which have generated millions in revenue to something new changing the landscape of the insurance world, this is the perfect opportunity for a results driven and growth focused Senior engineer looking to start an ambitious business. The Role - We're looking for a Backend Engineer with strong Python skills and experience building scalable cloud-based microservices, ideally with FastAPI. You'll work in a cross-functional team delivering reliable, performant services that power our core insurance platform. What You'll Do * Design, build, and maintain Python microservices (FastAPI) in production * Own features end-to-end: design, build, test, deploy, monit
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        Software Development Team Lead

        Hays
        EC1, City of London
        £90000.0 - £110000.0 per annum + Competitive + Benefits Package
        Programming Languages & Frameworks: TypeScript, Node.js, NestJS (REST API framework), AngularJS (or similar frontend frameworks) * Databases & Data Management: PostgreSQL, PostgREST (RESTful API layer over PostgreSQL)
        Programming Languages & Frameworks: TypeScript, Node.js, NestJS (REST API framework), AngularJS (or similar frontend frameworks) * Databases & Data Management: PostgreSQL, PostgREST (RESTful API layer over PostgreSQL)
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        NEW
        5+ years experience in working with the .NET framework, particularly with ASP.NET Core, React/React Native, C#, Web API Experience developing REST API-driven mobile first web applications
        5+ years experience in working with the .NET framework, particularly with ASP.NET Core, React/React Native, C#, Web API Experience developing REST API-driven mobile first web applications
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        NEW
        There's a focus on backend and API development although you'll also have elements of front end work with JavaScript and React.js.
        There's a focus on backend and API development although you'll also have elements of front end work with JavaScript and React.js.
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        NEWPREMIUM

        Full Stack Developer

        Rise Technical
        London
        £60000.00 - £70000.00 per annum + + Equity
        The ideal candidate will have a robust background in AWS, Node.js, and React, along with expertise in NoSQL databases, RESTful API design and development, product development, and deployment of applications on both iOS and Android platforms.
        The ideal candidate will have a robust background in AWS, Node.js, and React, along with expertise in NoSQL databases, RESTful API design and development, product development, and deployment of applications on both iOS and Android platforms.
        more
        NEW

        Full Stack Developer

        Rise Technical Recruitment Limited
        London
        £60000.00 - £70000.00 per annum + + Equity
        The ideal candidate will have a robust background in AWS, Node.js, and React, along with expertise in NoSQL databases, RESTful API design and development, product development, and deployment of applications on both iOS and Android platforms.
        The ideal candidate will have a robust background in AWS, Node.js, and React, along with expertise in NoSQL databases, RESTful API design and development, product development, and deployment of applications on both iOS and Android platforms.
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        PREMIUM

        Full Stack Lead Engineer

        Hunter Selection
        Soho, W1
        £60000 - £85000 per annum + health insurance life insurance
        Restful API development - React | TypeScript | NodeJS | AWS | Event driven Architecture | CDK | Lambda | Cognito | S3 | SQS | Eventbridge | Restful API | API | SQL | NoSQL | messaging queues | WebSockets | DevOps | CI/CD | GitHub | WebAssembly | Infrastructure as Code | React | TypeScript | NodeJS | AWS | Event driven Architecture | CDK | Lambda | Cognito | S3 | SQS | Eventbridge | Restful API | API | SQL | NoSQL | messaging queues | WebSockets | DevOps | CI/CD | GitHub | WebAssembly | Infrastructure as Code | React | TypeScript | NodeJS | AWS | Event driven Architecture | CDK | Lambda | Cognito | S3 | SQS | Eventbridge | Restful API | API | SQL | NoSQL | messaging queues | WebSockets | DevOps | CI/CD | GitHub | WebAssembly | Infrastructure as Code
        Restful API development - React | TypeScript | NodeJS | AWS | Event driven Architecture | CDK | Lambda | Cognito | S3 | SQS | Eventbridge | Restful API | API | SQL | NoSQL | messaging queues | WebSockets | DevOps | CI/CD | GitHub | WebAssembly | Infrastructure as Code | React | TypeScript | NodeJS | AWS | Event driven Architecture | CDK | Lambda | Cognito | S3 | SQS | Eventbridge | Restful API | API | SQL | NoSQL | messaging queues | WebSockets | DevOps | CI/CD | GitHub | WebAssembly | Infrastructure as Code | React | TypeScript | NodeJS | AWS | Event driven Architecture | CDK | Lambda | Cognito | S3 | SQS | Eventbridge | Restful API | API | SQL | NoSQL | messaging queues | WebSockets | DevOps | CI/CD | GitHub | WebAssembly | Infrastructure as Code
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        NEWFEATURED
        Youll have a working knowledge of a broad stack of cloud technologies, excellent engineering skills, and experience of Ingestion and ETL methods for pushing data into Snowflake from internal (MuleSoft, Salesforce, SaaS platforms etc) and external API-sources.
        Youll have a working knowledge of a broad stack of cloud technologies, excellent engineering skills, and experience of Ingestion and ETL methods for pushing data into Snowflake from internal (MuleSoft, Salesforce, SaaS platforms etc) and external API-sources.
        more
        NEW
        You'll need working experience with scaled software architecture & domain: performance, redundancy, failover, clustering etc. You'll also need working experience with source code management patterns and proficiency in API design, development & production.
        You'll need working experience with scaled software architecture & domain: performance, redundancy, failover, clustering etc. You'll also need working experience with source code management patterns and proficiency in API design, development & production.
        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 permanent API jobs are there in London?
        There are 146 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, Central London, West End.

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