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        Last 14 days
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        231 Permanent API jobs in London + 20 miles

        QA Engineer

        Networker Global Limited
        London
        Negotiable
        Role: QA Engineer - Location: London - Type: Hybrid / Remote - Salary: TBC - Contract Type: Permanent - Myn is an AI driven marketplace that connects the candidates, clients and recruiters. Myn collaborates with leading employers to offer exclusive, carefully matched permanent positions. Our Recruitment Partners all have extensive industry experience, and work with a select group of niche clients, to deliver the best possible experience to the candidate. We are working with a fast-growing, product-led tech company and we are looking for a QA Engineer whos passionate about catching bugs, improving processes and making sure every release is rock solid. * Design and execute manual and automated test plans across web and mobile platforms * Collaborate with developers, designers, and PMs to ensure quality from ideation to release
        Role: QA Engineer - Location: London - Type: Hybrid / Remote - Salary: TBC - Contract Type: Permanent - Myn is an AI driven marketplace that connects the candidates, clients and recruiters. Myn collaborates with leading employers to offer exclusive, carefully matched permanent positions. Our Recruitment Partners all have extensive industry experience, and work with a select group of niche clients, to deliver the best possible experience to the candidate. We are working with a fast-growing, product-led tech company and we are looking for a QA Engineer whos passionate about catching bugs, improving processes and making sure every release is rock solid. * Design and execute manual and automated test plans across web and mobile platforms * Collaborate with developers, designers, and PMs to ensure quality from ideation to release
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        Role Full Stack Developer - Location - London (Remote) Salary - £70K - £85K - Role Type Permanent - Myn is an AI driven marketplace that connects the candidates, clients and recruiters. Myn collaborates with leading employers to offer exclusive, carefully matched permanent positions. Overview - Are you a talented Full Stack Developer eager to make an immediate impact on exciting projects? Our client is seeking an experienced Full Stack development professional for a hybrid position to be based in Central London, but operating remotely * Design and implement robust web applications using cutting-edge technologies and frameworks. * Collaborate with cross-functional teams to drive the full development lifecycle, from concept to deployment. * Engage in continuous learning and professional development, enhancing your skills and career prospects.
        Role Full Stack Developer - Location - London (Remote) Salary - £70K - £85K - Role Type Permanent - Myn is an AI driven marketplace that connects the candidates, clients and recruiters. Myn collaborates with leading employers to offer exclusive, carefully matched permanent positions. Overview - Are you a talented Full Stack Developer eager to make an immediate impact on exciting projects? Our client is seeking an experienced Full Stack development professional for a hybrid position to be based in Central London, but operating remotely * Design and implement robust web applications using cutting-edge technologies and frameworks. * Collaborate with cross-functional teams to drive the full development lifecycle, from concept to deployment. * Engage in continuous learning and professional development, enhancing your skills and career prospects.
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        Business Analyst - IT Software Consultancy

        Octad Recruitment Consultants (Octad Ltd )
        BR1, Bromley
        From £40,000 to £60,000 per annum Good Benefits
        ThisvibrantandexpandingcompanyarelookingforaBusinessAnalysttoworkcloselywiththeCEOinthisexcitingphaseoftheirexpansion.,TheCompanyisanend-to-enddigitalsolutionorganisation. TheyarelookingforanexperiencedBusinessAnalysttojointheirteam. Inthisrole,youllbethebridgebetweenbusinessneedsandtechnicalsolutions-gatheringrequirements,analysingprocesses,anddeliveringactionableinsightsthathelpguideproductdevelopmentandbusinessstrategy. ThedevelopmentteamarebasedoverseasinSouthAfricaandThailand,withtheCTOandasystemsmanager/UATpersonbeingtheonlyUKbasedpartoftheteam. Thisroleiskeyinthatitwillbeaseniorandkeymemberofthedevelopmentteamwhichwillincludearchitectureandstrategydecisions. Collaboratewithstakeholderstogatheranddefinebusinessrequirements - Translatebusinessneedsintofunctionalandtechnicalspecifications - Analyseexistingprocessesandrecommendimprovementstoincreaseefficiencyandsca
        ThisvibrantandexpandingcompanyarelookingforaBusinessAnalysttoworkcloselywiththeCEOinthisexcitingphaseoftheirexpansion.,TheCompanyisanend-to-enddigitalsolutionorganisation. TheyarelookingforanexperiencedBusinessAnalysttojointheirteam. Inthisrole,youllbethebridgebetweenbusinessneedsandtechnicalsolutions-gatheringrequirements,analysingprocesses,anddeliveringactionableinsightsthathelpguideproductdevelopmentandbusinessstrategy. ThedevelopmentteamarebasedoverseasinSouthAfricaandThailand,withtheCTOandasystemsmanager/UATpersonbeingtheonlyUKbasedpartoftheteam. Thisroleiskeyinthatitwillbeaseniorandkeymemberofthedevelopmentteamwhichwillincludearchitectureandstrategydecisions. Collaboratewithstakeholderstogatheranddefinebusinessrequirements - Translatebusinessneedsintofunctionalandtechnicalspecifications - Analyseexistingprocessesandrecommendimprovementstoincreaseefficiencyandsca
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        Data Engineer - AI Projects

        Henderson Scott
        Stevenage, Hertfordshire, SG1 2DA
        £50000.00 - £55000.00 per annum + Bonus, + Substantial Benefits
        Data Engineer - Generative AI Projects?? Hybrid | 2-3 Days On-Site | Up to £55,000 + Bonus + Package?? British Citizens Only | BPSS Clearance Required - We're hiring a Data Engineer with a passion for automation, clean pipelines, and the future of AI. This is your chance to shape how data powers Generative AI and NLP tools in a secure, high-tech organisation working on projects that matter. If you're keen to work on innovative internal use-cases - from AI assistants to intelligent search and document automation - this is the perfect next step. What You'll Be Doing * Building and maintaining data pipelines across structured & unstructured sources * Collaborating with internal teams to support Generative AI and NLP projects * Ensuring data is secure, compliant, high-quality, and easy to access * Bringing your ideas to the table as we explore new tools and technologies
        Data Engineer - Generative AI Projects?? Hybrid | 2-3 Days On-Site | Up to £55,000 + Bonus + Package?? British Citizens Only | BPSS Clearance Required - We're hiring a Data Engineer with a passion for automation, clean pipelines, and the future of AI. This is your chance to shape how data powers Generative AI and NLP tools in a secure, high-tech organisation working on projects that matter. If you're keen to work on innovative internal use-cases - from AI assistants to intelligent search and document automation - this is the perfect next step. What You'll Be Doing * Building and maintaining data pipelines across structured & unstructured sources * Collaborating with internal teams to support Generative AI and NLP projects * Ensuring data is secure, compliant, high-quality, and easy to access * Bringing your ideas to the table as we explore new tools and technologies
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        FEATURED

        Senior Backend Engineer

        Ncounter LTD
        SW1, South West 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.
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        Data Integration Manager - Contract Type:Permanent - About the Role - We're looking for an experienced Data Integration Manager to take ownership of how data moves, integrates, and performs across our business. This is a strategic role that sits at the intersection of technology, operations, and business value, ensuring our financial, commercial, and operational data flows are reliable, accurate, and enable smarter decision-making. You'll be the technical owner of our integration partnerships, lead a small specialist team, and work closely with Finance, Operations, and Commercial stakeholders to modernise processes through better data. If you're someone who understands both the technical complexity of enterprise data and the business outcomes it should deliver, we'd love to hear from you. What You'll Be Doing - Leading Enterprise Integration & Data Operations
        Data Integration Manager - Contract Type:Permanent - About the Role - We're looking for an experienced Data Integration Manager to take ownership of how data moves, integrates, and performs across our business. This is a strategic role that sits at the intersection of technology, operations, and business value, ensuring our financial, commercial, and operational data flows are reliable, accurate, and enable smarter decision-making. You'll be the technical owner of our integration partnerships, lead a small specialist team, and work closely with Finance, Operations, and Commercial stakeholders to modernise processes through better data. If you're someone who understands both the technical complexity of enterprise data and the business outcomes it should deliver, we'd love to hear from you. What You'll Be Doing - Leading Enterprise Integration & Data Operations
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        We are seeking an experienced Product Engagement specialist to join the Analytics Client Engagement team in London, where you'll drive the narrative strategy behind some of LSEGs most impactful financial analytics products and experiences. As part of our high-performing client insight and engagement team, you will take a lead role to craft and scale brilliant narratives and digital experiences across the Analytics product portfolio for our growing client base and digital experiences. We're looking for a strategic storyteller to lead narrative research and development across our Analytics product and proposition portfolio, someone who knows how to bring clarity to complexity and compose product messaging that not only informs but inspires. In this role, you'll shape and drive a unified approach that cuts across product silos and regional teams, ensuring every word ...
        We are seeking an experienced Product Engagement specialist to join the Analytics Client Engagement team in London, where you'll drive the narrative strategy behind some of LSEGs most impactful financial analytics products and experiences. As part of our high-performing client insight and engagement team, you will take a lead role to craft and scale brilliant narratives and digital experiences across the Analytics product portfolio for our growing client base and digital experiences. We're looking for a strategic storyteller to lead narrative research and development across our Analytics product and proposition portfolio, someone who knows how to bring clarity to complexity and compose product messaging that not only informs but inspires. In this role, you'll shape and drive a unified approach that cuts across product silos and regional teams, ensuring every word ...
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        As part of our high-performing Client Insight & Engagement team, youll help us research, define and craft outstanding digital experiences across our growing Analytics product portfolio. Focused on customer desirability you'll be at the forefront of crafting innovative, seamless, and human-centred products that make a real difference for our clients, at scale. Were looking for an experienced Product Research lead to inform and evolve sophisticated product concepts into user-first experiences across multiple industry digital touchpoints and channels. You'll weave design and systems thinking, empathy, and innovation to every stage of the product process, ensuring our products not only meet user needs but exceed expectations. This is more than a research role; its a chance to help define the future of how our clients engage with and experience high value financial solutio
        As part of our high-performing Client Insight & Engagement team, youll help us research, define and craft outstanding digital experiences across our growing Analytics product portfolio. Focused on customer desirability you'll be at the forefront of crafting innovative, seamless, and human-centred products that make a real difference for our clients, at scale. Were looking for an experienced Product Research lead to inform and evolve sophisticated product concepts into user-first experiences across multiple industry digital touchpoints and channels. You'll weave design and systems thinking, empathy, and innovation to every stage of the product process, ensuring our products not only meet user needs but exceed expectations. This is more than a research role; its a chance to help define the future of how our clients engage with and experience high value financial solutio
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        Location: London - 1x a month - Salary: Up to £120,000 (D.O.E) + benefits - Fruition Group are partnering with a high-growth Insurtech unicorn that's scaling its engineering function. This is a unique chance to work across both proven, revenue-generating products and greenfield initiatives that are reshaping the future of insurance. It's an ideal role for a driven Lead Engineer who thrives in ambitious environments and wants to make a tangible impact. As a Lead Backend Engineer, you'll take ownership of designing and scaling cloud-native backend systems. You'll work primarily with Python (FastAPI) and play a key role in shaping the architecture of microservices that support millions of users. Beyond hands-on development, you'll provide technical leadership, mentor team members, and influence strategic engineering decisions.
        Location: London - 1x a month - Salary: Up to £120,000 (D.O.E) + benefits - Fruition Group are partnering with a high-growth Insurtech unicorn that's scaling its engineering function. This is a unique chance to work across both proven, revenue-generating products and greenfield initiatives that are reshaping the future of insurance. It's an ideal role for a driven Lead Engineer who thrives in ambitious environments and wants to make a tangible impact. As a Lead Backend Engineer, you'll take ownership of designing and scaling cloud-native backend systems. You'll work primarily with Python (FastAPI) and play a key role in shaping the architecture of microservices that support millions of users. Beyond hands-on development, you'll provide technical leadership, mentor team members, and influence strategic engineering decisions.
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        Senior Frontend Engineer (Next.js / React) High-Growth SaaS | Build Elegant, User-First Products - In partnership with Robert Half Limited. We're a high-growth SaaS company scaling fast, and we're looking for a Senior Frontend Engineer to join our team. This is a chance to shape products used by thousands of customers, working with modern tools and a team that values craftsmanship, speed, and impact. Hybrid Working in the City of London, London. 3 days in the office and 2 days from home. What You'll Do * Build and scale complex, high-performing web applications with Next.js and React * Collaborate with design and product to create polished, intuitive, responsive interfaces * Drive improvements in performance, accessibility, and scalability across platforms * Contribute to architecture decisions, code reviews, and design discussions
        Senior Frontend Engineer (Next.js / React) High-Growth SaaS | Build Elegant, User-First Products - In partnership with Robert Half Limited. We're a high-growth SaaS company scaling fast, and we're looking for a Senior Frontend Engineer to join our team. This is a chance to shape products used by thousands of customers, working with modern tools and a team that values craftsmanship, speed, and impact. Hybrid Working in the City of London, London. 3 days in the office and 2 days from home. What You'll Do * Build and scale complex, high-performing web applications with Next.js and React * Collaborate with design and product to create polished, intuitive, responsive interfaces * Drive improvements in performance, accessibility, and scalability across platforms * Contribute to architecture decisions, code reviews, and design discussions
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        Technical Architect

        ARC IT Recruitment Ltd
        The City, EC3M 5BN
        Up to £95,000 per annum bonus + benefits
        Azure, API, PaaS * In-depth knowledge of Azure cloud services (PaaS, Containers, AKS, Logic Apps, API Management, Service Bus, Event Grid).
        Azure, API, PaaS * In-depth knowledge of Azure cloud services (PaaS, Containers, AKS, Logic Apps, API Management, Service Bus, Event Grid).
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        NEW

        Technical Architect

        Career Legal Ltd
        EC1M, City of London
        From £85,000 to £100,000 per annum
        Experience in developing and deploying Cloud Native Applications using Azure PaaS Capabilities (App Services Plans, Key Vault, SQL Azure DB, AzureFunctions, Containers, AKS, Logic Apps, Service Bus, Event Grid, API Management) * Enterprise Integration Technologies such as Azure API Management, Logic Apps, Service Bus.
        Experience in developing and deploying Cloud Native Applications using Azure PaaS Capabilities (App Services Plans, Key Vault, SQL Azure DB, AzureFunctions, Containers, AKS, Logic Apps, Service Bus, Event Grid, API Management) * Enterprise Integration Technologies such as Azure API Management, Logic Apps, Service Bus.
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        NEW
        Configure and support Axway solutions, including API management and B2B gateway. * Working knowledge of Axway technologies, particularly API management and B2B gateway.
        Configure and support Axway solutions, including API management and B2B gateway. * Working knowledge of Axway technologies, particularly API management and B2B gateway.
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        FEATURED
        Experience with some of the technologies we make use of: Groovy, Python, AWS Serverless (API Gateway, Lambdas), XML, JSON, Open API, virtualisation in general and especially Docker and its eco system, Git, NoSQL products and concepts (Dynamo, column family, etc.)
        Experience with some of the technologies we make use of: Groovy, Python, AWS Serverless (API Gateway, Lambdas), XML, JSON, Open API, virtualisation in general and especially Docker and its eco system, Git, NoSQL products and concepts (Dynamo, column family, etc.)
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        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 231 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 West 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 Cyber Security, Implementation, IT, amongst many others.