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        46 Permanent API jobs in London + 20 miles

        Customer Data Master Engineering Lead

        London Stock Exchange
        London
        Competitive
        Role Summary - LSEGs ambition is to be one of the worlds greatest companies and best places to work. To achieve this, we are on a journey of building a world class engineering function supporting our Customer Data Master (CDM) Platform team. The team has embarked on a journey to provide internal teams and platform teams with a fully managed customer data master platform. The role will take part in the definition of the CDM strategy and execution of the CDM engineering strategy and deliver the technology capability, in line with the Corporate Engineering (CE) strategy which includes evolving our current master data capability. What youll be doing * Lead and scale a senior engineering team (currently 5, growing to ~10) to design, build and operate the MDM , CDM and Customer 360 platforms as a product, with clear ownership, measurable outcomes, and a roadmap aligned to b
        Role Summary - LSEGs ambition is to be one of the worlds greatest companies and best places to work. To achieve this, we are on a journey of building a world class engineering function supporting our Customer Data Master (CDM) Platform team. The team has embarked on a journey to provide internal teams and platform teams with a fully managed customer data master platform. The role will take part in the definition of the CDM strategy and execution of the CDM engineering strategy and deliver the technology capability, in line with the Corporate Engineering (CE) strategy which includes evolving our current master data capability. What youll be doing * Lead and scale a senior engineering team (currently 5, growing to ~10) to design, build and operate the MDM , CDM and Customer 360 platforms as a product, with clear ownership, measurable outcomes, and a roadmap aligned to b
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        This means writing high-quality code, solving complex problems in live production, and tackling challenges that impact over 2 billion people worldwide. Our PEs are embedded in teams across the spectrum from products like Instagram, WhatsApp, Oculus, and Videos to critical backend services such as Storage, Cache, and Networking. The team brings together diverse levels of experience and backgrounds. Working alongside some of the best engineers in the industry, youll contribute to code and systems that go into production and are used by millions every day. In Production Engineering at Meta, we navigate uncharted waters daily solving problems at a scale few others face. * Own back-end services like our Hadoop data warehouses, front-end services like Messenger and Newsfeed, infrastructure components like our Memcache infrastructure, and everything in between
        This means writing high-quality code, solving complex problems in live production, and tackling challenges that impact over 2 billion people worldwide. Our PEs are embedded in teams across the spectrum from products like Instagram, WhatsApp, Oculus, and Videos to critical backend services such as Storage, Cache, and Networking. The team brings together diverse levels of experience and backgrounds. Working alongside some of the best engineers in the industry, youll contribute to code and systems that go into production and are used by millions every day. In Production Engineering at Meta, we navigate uncharted waters daily solving problems at a scale few others face. * Own back-end services like our Hadoop data warehouses, front-end services like Messenger and Newsfeed, infrastructure components like our Memcache infrastructure, and everything in between
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        Engineering Manager

        Stepstone UK
        Southwark, South East London (SE1), SE1 0TA
        Competitive salary
        At The Stepstone Group, we have a simple yet very important mission: The right job for everyone. Using our data, platform, and technology, we create opportunities for jobseekers and companies around the world to find a perfect match in fair and equitable way. With over 20 brands across 30+ countries, we strive for fair and unbiased hiring. Join our team of 4,000+ employees and be part of reshaping the labour market and becoming the worlds leading job platform. Job Description - Join our team and youll be responsible for providing technical leadership to all engineering and development areas across your domain, developing and executing an engineering strategy aligned to the portfolio and global tech strategies. Working in the Design and Platform Performance domain, you willlead the technology side of web and mobile analytics for a platform with over 50 million visits e
        At The Stepstone Group, we have a simple yet very important mission: The right job for everyone. Using our data, platform, and technology, we create opportunities for jobseekers and companies around the world to find a perfect match in fair and equitable way. With over 20 brands across 30+ countries, we strive for fair and unbiased hiring. Join our team of 4,000+ employees and be part of reshaping the labour market and becoming the worlds leading job platform. Job Description - Join our team and youll be responsible for providing technical leadership to all engineering and development areas across your domain, developing and executing an engineering strategy aligned to the portfolio and global tech strategies. Working in the Design and Platform Performance domain, you willlead the technology side of web and mobile analytics for a platform with over 50 million visits e
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        PREMIUM
        Location: Remote with travel to Corsham (Fortnightly) Day Rate: £510 (Inside IR35) Clearance: Active SC clearance required - Industry: Defence - Overview - We are seeking an experienced Collaborative Tooling Engineer to support a high-profile MOD programme, focused on designing, maintaining, and optimising collaboration platforms across the Atlassian Suite, particularly Jira and Confluence. The role suits someone who has deep hands-on experience administering Atlassian tools within secure or complex environments, and who can support engineering teams, delivery squads, and senior stakeholders with reliable, well-governed collaboration solutions. This position offers remote working with planned fortnightly site visits to Corsham. Key Responsibilities - Atlassian Platform Ownership * Administer, configure, and maintain Jira, Confluence, and related Atlassian Suite toolin
        Location: Remote with travel to Corsham (Fortnightly) Day Rate: £510 (Inside IR35) Clearance: Active SC clearance required - Industry: Defence - Overview - We are seeking an experienced Collaborative Tooling Engineer to support a high-profile MOD programme, focused on designing, maintaining, and optimising collaboration platforms across the Atlassian Suite, particularly Jira and Confluence. The role suits someone who has deep hands-on experience administering Atlassian tools within secure or complex environments, and who can support engineering teams, delivery squads, and senior stakeholders with reliable, well-governed collaboration solutions. This position offers remote working with planned fortnightly site visits to Corsham. Key Responsibilities - Atlassian Platform Ownership * Administer, configure, and maintain Jira, Confluence, and related Atlassian Suite toolin
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        FEATURED
        We are looking for an Engineering Manager (f/m/d) to lead a high-performing, remote-first API development team based in Europe who are driving Contentfuls REST and GraphQL APIs that enable customers to manage and deliver content at scale. We aim to help customers accelerate innovation, reduce operational complexity, and unlock new growth opportunities through a secure, performant, and extensible API ecosystem. * Lead and grow a globally-distributed API development team, ensuring a culture of high performance, collaboration, and continuous improvement. * Experience with API-first platforms.
        We are looking for an Engineering Manager (f/m/d) to lead a high-performing, remote-first API development team based in Europe who are driving Contentfuls REST and GraphQL APIs that enable customers to manage and deliver content at scale. We aim to help customers accelerate innovation, reduce operational complexity, and unlock new growth opportunities through a secure, performant, and extensible API ecosystem. * Lead and grow a globally-distributed API development team, ensuring a culture of high performance, collaboration, and continuous improvement. * Experience with API-first platforms.
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        Guide platform evolution: re-engineer legacy .NET and SQL systems into modular, API-driven architectures. Responsive design (Bootstrap, Tailwind), state management (Redux, Context API) Secure coding and API versioning
        Guide platform evolution: re-engineer legacy .NET and SQL systems into modular, API-driven architectures. Responsive design (Bootstrap, Tailwind), state management (Redux, Context API) Secure coding and API versioning
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        Youll design, implement, and maintain integration solutions that power our business operations, leveraging your expertise in both traditional EDI standards and modern API integrations. * Collaborate with internal teams and external partners to gather requirements and ensure compliance with API standards * Monitor and troubleshoot EDI/API transactions, resolving errors to ensure smooth information flow * Create and maintain documentation for EDI processes, API specifications, and trading partner profiles * Provide training and support to internal users on EDI/API processes and best practices * Experience with API-based integrations and EDI platforms * Solid understanding of HTTP, authentication (OAuth2, JWT), and API lifecycle management
        Youll design, implement, and maintain integration solutions that power our business operations, leveraging your expertise in both traditional EDI standards and modern API integrations. * Collaborate with internal teams and external partners to gather requirements and ensure compliance with API standards * Monitor and troubleshoot EDI/API transactions, resolving errors to ensure smooth information flow * Create and maintain documentation for EDI processes, API specifications, and trading partner profiles * Provide training and support to internal users on EDI/API processes and best practices * Experience with API-based integrations and EDI platforms * Solid understanding of HTTP, authentication (OAuth2, JWT), and API lifecycle management
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        We go beyond the obvious, using intelligence, passion and creativity to inspire new thinking and shape the world we live in. To start a career that is out of the ordinary, please apply... Job Details - Were the worlds leading data, insights, and consulting company; we shape the brands of tomorrow by better understanding people everywhere. About the job - We are looking for a talented Principal Engineering Lead, AI Enabled Solutions to join our engineering community. Together we are building, enhancing and supporting the next generation of our platform. This role is perfect for a highly experienced software engineer or software architect who loves to work as a team whilst building elegant and simple solutions that scale. Job Goals The Principal Engineering Lead, AI Enabled Solutions, plays a crucial role in driving Kantars technology transformation by architecting and
        We go beyond the obvious, using intelligence, passion and creativity to inspire new thinking and shape the world we live in. To start a career that is out of the ordinary, please apply... Job Details - Were the worlds leading data, insights, and consulting company; we shape the brands of tomorrow by better understanding people everywhere. About the job - We are looking for a talented Principal Engineering Lead, AI Enabled Solutions to join our engineering community. Together we are building, enhancing and supporting the next generation of our platform. This role is perfect for a highly experienced software engineer or software architect who loves to work as a team whilst building elegant and simple solutions that scale. Job Goals The Principal Engineering Lead, AI Enabled Solutions, plays a crucial role in driving Kantars technology transformation by architecting and
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        Location: London - Duration: 6 months, full time - Start: As soon as possible - Why? Statkraft?has been making clean energy possible for over a century. Thats what we offer. 125 years of unrivalled expertise in supplying the world with what it needs most. We envision a world that runs entirely on renewable energy. Because in the fight against climate change, we dont see renewable energy as part of the solution we believe it must be?the?solution. With us, youll shape a career that is truly forward-facing with many amazing opportunities and offerings to match.? But theres more work to be done thats why we need you to join us. Working in Proprietary Trading - The Proprietary Trading department at Statkraft is known for its innovative and data-driven approach, and our team members are expected to have strong analytical and problem-solving skills, as well as a passion for
        Location: London - Duration: 6 months, full time - Start: As soon as possible - Why? Statkraft?has been making clean energy possible for over a century. Thats what we offer. 125 years of unrivalled expertise in supplying the world with what it needs most. We envision a world that runs entirely on renewable energy. Because in the fight against climate change, we dont see renewable energy as part of the solution we believe it must be?the?solution. With us, youll shape a career that is truly forward-facing with many amazing opportunities and offerings to match.? But theres more work to be done thats why we need you to join us. Working in Proprietary Trading - The Proprietary Trading department at Statkraft is known for its innovative and data-driven approach, and our team members are expected to have strong analytical and problem-solving skills, as well as a passion for
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        A newly created exciting opportunity to join the PIM (Pension Investment Management) team as the Head of PIM Engineering . This is a permanent opportunity based in our London office (hybrid working). Who we are - Railpen is responsible for the safekeeping and investment of around £34 billion in assets and the administration of several pension schemes, including the Railways Pension Scheme, one of the UK's largest and longest established pension funds. Our heritage of looking after the pension needs of the rail industry and its employees gives us our name and our unique outlook on how we serve our members. Railpen takes a holistic view, focusing on how we serve members today and how we can positively impact the communities and the world they will retire into. To learn more about Railpen including our values, culture and purpose, visit our LinkedIn Life page here. The r
        A newly created exciting opportunity to join the PIM (Pension Investment Management) team as the Head of PIM Engineering . This is a permanent opportunity based in our London office (hybrid working). Who we are - Railpen is responsible for the safekeeping and investment of around £34 billion in assets and the administration of several pension schemes, including the Railways Pension Scheme, one of the UK's largest and longest established pension funds. Our heritage of looking after the pension needs of the rail industry and its employees gives us our name and our unique outlook on how we serve our members. Railpen takes a holistic view, focusing on how we serve members today and how we can positively impact the communities and the world they will retire into. To learn more about Railpen including our values, culture and purpose, visit our LinkedIn Life page here. The r
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        Design, build and govern marketing data foundation tagging, tracking, pipelines and modelling to create a single source of truth across brand direct, paid, social and CRM. Enable faster, better decisions with accurate data, integrated views (GA4, Salesforce, Databricks, COGNOS) and insight products (dashboards, attribution/MMM). Be the primary point of contact for all tracking and data issues ensuring reliability, compliance and speed. Own tagging and tracking standards for web/app (GTM, GA4, CM360/Floodlight, Meta pixel/event manager, consent mode) Define and maintain the marketing KPI dictionary and data model; steward the single source of truth. Define data pipelines between martech platforms and enterprise solutions (Salesforce, COGNOS, Databricks). Set QA/alerting SLAs, prioritise analytics backlog.
        Design, build and govern marketing data foundation tagging, tracking, pipelines and modelling to create a single source of truth across brand direct, paid, social and CRM. Enable faster, better decisions with accurate data, integrated views (GA4, Salesforce, Databricks, COGNOS) and insight products (dashboards, attribution/MMM). Be the primary point of contact for all tracking and data issues ensuring reliability, compliance and speed. Own tagging and tracking standards for web/app (GTM, GA4, CM360/Floodlight, Meta pixel/event manager, consent mode) Define and maintain the marketing KPI dictionary and data model; steward the single source of truth. Define data pipelines between martech platforms and enterprise solutions (Salesforce, COGNOS, Databricks). Set QA/alerting SLAs, prioritise analytics backlog.
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        Our Solution Engineers are close partners of our sales team and own key components of the sales process including infrastructural/architectural discovery, collaborative solution design, and technical validation. Solution Engineers may travel up to 50% of the time and will have the opportunity to work with teams around the world, from visionary brands to innovative digital agencies. What to expect? * This is a customer-facing role and, as such, you should expect up to 50% of your time to be spent on travel to the office and/or customer locations. * Work directly with Commercial Account Executives to support EMEA customers * Support our sales team in helping prospects understand whats possible with Contentful and how it compares to older legacy technologies * Understand prospects' project requirements, help prospects validate these requirements against our platform, ide
        Our Solution Engineers are close partners of our sales team and own key components of the sales process including infrastructural/architectural discovery, collaborative solution design, and technical validation. Solution Engineers may travel up to 50% of the time and will have the opportunity to work with teams around the world, from visionary brands to innovative digital agencies. What to expect? * This is a customer-facing role and, as such, you should expect up to 50% of your time to be spent on travel to the office and/or customer locations. * Work directly with Commercial Account Executives to support EMEA customers * Support our sales team in helping prospects understand whats possible with Contentful and how it compares to older legacy technologies * Understand prospects' project requirements, help prospects validate these requirements against our platform, ide
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        Configure AWS Web Application Firewall with CloudFront, ALB, and API Gateway.
        Configure AWS Web Application Firewall with CloudFront, ALB, and API Gateway.
        NEW
        Join Barclays as a Principal Engineer Apigee X, where you'll be part of a platform engineering team that leads the design, implementation, and governance of our new External API gateway solution for our enterprise. This role will be instrumental in shaping our API strategy, ensuring scalability, security, and performance of our digital platforms, and mentoring engineering teams on best practices. * Software engineering, with a focus on API management and integration. * Familiarity with CI/CD tools (e.g., GitLab) and API testing frameworks.
        Join Barclays as a Principal Engineer Apigee X, where you'll be part of a platform engineering team that leads the design, implementation, and governance of our new External API gateway solution for our enterprise. This role will be instrumental in shaping our API strategy, ensuring scalability, security, and performance of our digital platforms, and mentoring engineering teams on best practices. * Software engineering, with a focus on API management and integration. * Familiarity with CI/CD tools (e.g., GitLab) and API testing frameworks.
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        We do this by providing products and services which allow our clients to efficiently collect, reconcile and disburse funds instantly via a range of payment schemes, accounts, and card products, fully controllable via API.
        We do this by providing products and services which allow our clients to efficiently collect, reconcile and disburse funds instantly via a range of payment schemes, accounts, and card products, fully controllable via API.
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        Enterprise Systems Integration: Deep experience with enterprise applications (SAP, Salesforce, Oracle, ServiceNow, Workday) and API-based integration patterns
        Enterprise Systems Integration: Deep experience with enterprise applications (SAP, Salesforce, Oracle, ServiceNow, Workday) and API-based integration patterns
        more

        15 exact matches jobs are outside your preferred location

        Principal Engineer

        Kingston Barnes Engineering
        Keeley Green, Bedford (MK42), MK42
        £80,000 per annum holiday, pension, sick pay, life assurance
        Familiarity with industry standards (ISO, API, HI) and experience testing and validating designs
        Familiarity with industry standards (ISO, API, HI) and experience testing and validating designs

        Customer Success Engineer - Associate

        Preservica
        Thames View Industrial Park, Abingdon (OX14), OX14 3YS
        Unspecified
        You are an accomplished Python developer, you know your way around APIs, have a strong handle on supporting or configuring SaaS solutions and you thrive on customer interaction. Are you ready to make your mark on future-proof software? We are Preservica and our groundbreaking active digital preservation solutions are at the razors edge eliminating the challenge of file obsolescence, data ROT and more, addressing the need for smart digital preservation technology. Our award-winning software is used by leading businesses, archives, libraries, museums and government organisations across the globe. We are world leaders and proud of our achievements but to stay ahead we need the brightest and most talented commercial and technical innovators to join our professional services team and right now we are looking for a solid Technical Success / Integration Engineer. The Role
        You are an accomplished Python developer, you know your way around APIs, have a strong handle on supporting or configuring SaaS solutions and you thrive on customer interaction. Are you ready to make your mark on future-proof software? We are Preservica and our groundbreaking active digital preservation solutions are at the razors edge eliminating the challenge of file obsolescence, data ROT and more, addressing the need for smart digital preservation technology. Our award-winning software is used by leading businesses, archives, libraries, museums and government organisations across the globe. We are world leaders and proud of our achievements but to stay ahead we need the brightest and most talented commercial and technical innovators to join our professional services team and right now we are looking for a solid Technical Success / Integration Engineer. The Role
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        Senior Java Developer - AI Project

        Connexa
        Milton Keynes (MK1)
        £70000 - £80000 per annum + + 20% Bonus
        Our client, a growing consultancy delivering cutting-edge AI and data-led services to government and public sector clients, is looking for a Senior Software Engineer to join their forward-thinking team in Milton Keynes. This is a fantastic opportunity to contribute to a nationally recognised AI innovation platform used to drive sensitive data discovery, redaction, and secure archiving for government departments. You'll work across a modern tech stack and play a key role in the development, deployment, and support of a secure full stack system used across the UK public sector. * Design, build, and test full stack software in a secure, client-focused environment * Work with modern front-end technologies (React, TypeScript, HTML/CSS) to deliver intuitive UI/UX * Develop robust back-end services using Java and Spring Boot
        Our client, a growing consultancy delivering cutting-edge AI and data-led services to government and public sector clients, is looking for a Senior Software Engineer to join their forward-thinking team in Milton Keynes. This is a fantastic opportunity to contribute to a nationally recognised AI innovation platform used to drive sensitive data discovery, redaction, and secure archiving for government departments. You'll work across a modern tech stack and play a key role in the development, deployment, and support of a secure full stack system used across the UK public sector. * Design, build, and test full stack software in a secure, client-focused environment * Work with modern front-end technologies (React, TypeScript, HTML/CSS) to deliver intuitive UI/UX * Develop robust back-end services using Java and Spring Boot
        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 46 permanent API jobs within 20 miles of London available on JustEngineers right now.

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

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