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- The City, City (EC3)
- Southwark
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- West Fields
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74 Permanent API jobs in Charing Cross, Central London + 20 miles
183 exact matches jobs are outside your preferred location
Join Our Journey in Transforming Data into Insights - At CluedIn, we're reshaping the future of data management with an Azure-native, graph-based Modern Master Data Management (MDM) platform that simplifies and accelerates how businesses manage their datamaking it faster, smarter, and more accessible. Trusted by global industry leaders, our technology enables organisations to unlock the full value of their data and drive meaningful transformation. As Microsoft's preferred MDM partner and the first solution integrated with Azure OpenAI, we're setting new standards for innovation in this space. Backed by five-star reviews on Gartner Peer Insights and seamless integration with Microsoft's data services, CluedIn delivers powerful, scalable solutions built for the enterprise. Our team's expertise, passion, and bold ideas drive our innovation.
Join Our Journey in Transforming Data into Insights - At CluedIn, we're reshaping the future of data management with an Azure-native, graph-based Modern Master Data Management (MDM) platform that simplifies and accelerates how businesses manage their datamaking it faster, smarter, and more accessible. Trusted by global industry leaders, our technology enables organisations to unlock the full value of their data and drive meaningful transformation. As Microsoft's preferred MDM partner and the first solution integrated with Azure OpenAI, we're setting new standards for innovation in this space. Backed by five-star reviews on Gartner Peer Insights and seamless integration with Microsoft's data services, CluedIn delivers powerful, scalable solutions built for the enterprise. Our team's expertise, passion, and bold ideas drive our innovation.
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Location: Hybrid working or global position London / Berlin /Hamburg / Brussels / Milan - Type: Full-time | Senior Leadership - Reports to: CEO Designate - About Aspria - For over 25 years, the Aspria Group has been a leader in premium wellbeing, offering an exclusive collection of members' clubs and hotels across Europe. Through our luxury wellbeing brand, Aspria, and our exciting new family fitness brand, Aspresso, we enable our members to live well, find balance, and enjoy a sense of belonging. Our world-class health, fitness, and wellness experiences support this vision. About the Role - As Group IT Director, you will set the technology vision and strategy for Aspria, balancing commercial objectives, security standards, and operational efficiency. You will partner with the executive team to deliver cutting-edge solutions that support our ambition of being a premie
Location: Hybrid working or global position London / Berlin /Hamburg / Brussels / Milan - Type: Full-time | Senior Leadership - Reports to: CEO Designate - About Aspria - For over 25 years, the Aspria Group has been a leader in premium wellbeing, offering an exclusive collection of members' clubs and hotels across Europe. Through our luxury wellbeing brand, Aspria, and our exciting new family fitness brand, Aspresso, we enable our members to live well, find balance, and enjoy a sense of belonging. Our world-class health, fitness, and wellness experiences support this vision. About the Role - As Group IT Director, you will set the technology vision and strategy for Aspria, balancing commercial objectives, security standards, and operational efficiency. You will partner with the executive team to deliver cutting-edge solutions that support our ambition of being a premie
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A bit about AutoBI - AutoBI was founded in 2019 and is part of the Bumper Group. Our mission, to revolutionise how dealerships and partners in the automotive sector track and enhance performance. Our cutting-edge, data-driven solution delivers real-time insights across CRM, Sales, Service, and Part. All through a unified platform powered by Microsoft Power BI. With AutoBIs comprehensive dashboards, dealerships can access, analyse, and act on the insights they need, all in one place. A bit about Bumper... Please allow us to celebrate our own success for a moment... We've built a customer-centric product that is market-leading, and we are smashing it! We're a multi-award-winning digital payments and insight platform within the automotive industry. We work with over 5,000 automotive retailers, helping drivers to pay for motoring costs, accessories, and other services thr
A bit about AutoBI - AutoBI was founded in 2019 and is part of the Bumper Group. Our mission, to revolutionise how dealerships and partners in the automotive sector track and enhance performance. Our cutting-edge, data-driven solution delivers real-time insights across CRM, Sales, Service, and Part. All through a unified platform powered by Microsoft Power BI. With AutoBIs comprehensive dashboards, dealerships can access, analyse, and act on the insights they need, all in one place. A bit about Bumper... Please allow us to celebrate our own success for a moment... We've built a customer-centric product that is market-leading, and we are smashing it! We're a multi-award-winning digital payments and insight platform within the automotive industry. We work with over 5,000 automotive retailers, helping drivers to pay for motoring costs, accessories, and other services thr
Department: Technology - Team: AI - Location: London with hybrid ways of working - Position type: Short Term Contract (Inside IR35) until the end of Dec 2026 - What the hiring manager says - As an AI Data Engineer, youll be at the heart of our efforts to build open telco models and advance AI in the telecom sector. This is a unique opportunity to work with cutting-edge data engineering pipelines, collaborate with academic and industry partners, and contribute to the development of synthetic data and knowledge resources that will shape the future of telecom AI. About the Team - Youll join a dynamic, cross-functional team dedicated to advancing AI capabilities in the telecom sector. Our team is growing rapidly, with a culture of collaboration and technical excellence. We value curiosity, initiative, and a drive to set new benchmarks for the industry. About the role
Department: Technology - Team: AI - Location: London with hybrid ways of working - Position type: Short Term Contract (Inside IR35) until the end of Dec 2026 - What the hiring manager says - As an AI Data Engineer, youll be at the heart of our efforts to build open telco models and advance AI in the telecom sector. This is a unique opportunity to work with cutting-edge data engineering pipelines, collaborate with academic and industry partners, and contribute to the development of synthetic data and knowledge resources that will shape the future of telecom AI. About the Team - Youll join a dynamic, cross-functional team dedicated to advancing AI capabilities in the telecom sector. Our team is growing rapidly, with a culture of collaboration and technical excellence. We value curiosity, initiative, and a drive to set new benchmarks for the industry. About the role
At Guardian, our mission is simple: to ensure every family has protection they truly believe in. Were challenging the market with a fresh approach and a brand promise Life. Made Better. We are looking for an experienced Test Automation Engineer to join our team. What does a Test Automation Engineer do? As a Test Automation Engineer, you will design build and run automated tests that ensure our software is reliable, high-quality, and user-ready. Youll partner with Developers, Quality and Business Analysts to define testing needs, create scalable test scripts and continuously improve how we test and deliver products. We are modernizing our testing strategy by emphasizing automation as the foundation for scalability, efficiency and adaptability. Our approach fosters seamless collaboration, aligns testing with business goals, and drives continuous improvement.
At Guardian, our mission is simple: to ensure every family has protection they truly believe in. Were challenging the market with a fresh approach and a brand promise Life. Made Better. We are looking for an experienced Test Automation Engineer to join our team. What does a Test Automation Engineer do? As a Test Automation Engineer, you will design build and run automated tests that ensure our software is reliable, high-quality, and user-ready. Youll partner with Developers, Quality and Business Analysts to define testing needs, create scalable test scripts and continuously improve how we test and deliver products. We are modernizing our testing strategy by emphasizing automation as the foundation for scalability, efficiency and adaptability. Our approach fosters seamless collaboration, aligns testing with business goals, and drives continuous improvement.
Were Gravita: the accountants fuelling ambitious businesses. Were a full service, tech-enabled firm, working with entrepreneurs and businesses to help them achieve their goals, and make an impact in the world. Were growing fast and are bringing like-minded advisors together to form a full-service tech-enabled accounting partner for thousands of SMEs. Our team use their incredible expertise alongside intuitive technology to help businesses and entrepreneurs plan better and grow faster. Our mission is to become the UKs leading tech-enabled accounting firm for SMEs. We have ambitious goals and our high-calibre team work hard to achieve them. We are one team with one agenda, working collaboratively in a respectful environment to deliver a great service to our clients. So if you join us, youll not only be working on exciting client challenges, youll also be helping us shap
Were Gravita: the accountants fuelling ambitious businesses. Were a full service, tech-enabled firm, working with entrepreneurs and businesses to help them achieve their goals, and make an impact in the world. Were growing fast and are bringing like-minded advisors together to form a full-service tech-enabled accounting partner for thousands of SMEs. Our team use their incredible expertise alongside intuitive technology to help businesses and entrepreneurs plan better and grow faster. Our mission is to become the UKs leading tech-enabled accounting firm for SMEs. We have ambitious goals and our high-calibre team work hard to achieve them. We are one team with one agenda, working collaboratively in a respectful environment to deliver a great service to our clients. So if you join us, youll not only be working on exciting client challenges, youll also be helping us shap
Job title: Senior Oracle Fusion Analyst - Location: London, Manchester, or Dublin - hybrid working arrangements with 2/3 days per week in the office. Package: Base salary, Company Bonus Plan, Pension plan, Private Medical, Generous leave allowance, Life Insurance, Income Protection. About iNIZIO - At Inizio, we're a global team driven by a shared purpose: to reimagine health. Formed in 2022 through the coming together of Ashfield and Huntsworth, we unite decades of experience with cutting-edge capabilities to deliver impactful solutions across the commercialization journey - from discovery to post-launch. Our global network of over 10,000 experts operates across 50 countries, supporting clients with strategic insight, medical excellence, creative engagement, and real-world delivery. We work with the world's leading health and life sciences businesses to solve complex
Job title: Senior Oracle Fusion Analyst - Location: London, Manchester, or Dublin - hybrid working arrangements with 2/3 days per week in the office. Package: Base salary, Company Bonus Plan, Pension plan, Private Medical, Generous leave allowance, Life Insurance, Income Protection. About iNIZIO - At Inizio, we're a global team driven by a shared purpose: to reimagine health. Formed in 2022 through the coming together of Ashfield and Huntsworth, we unite decades of experience with cutting-edge capabilities to deliver impactful solutions across the commercialization journey - from discovery to post-launch. Our global network of over 10,000 experts operates across 50 countries, supporting clients with strategic insight, medical excellence, creative engagement, and real-world delivery. We work with the world's leading health and life sciences businesses to solve complex
About us - At Xelix, we work with some of the worlds largest companies to automate and strengthen their financial controls. Our AI solutions redefine how Accounts Payable teams operate - moving from manual processes to automated, intelligent workflows. Xelix is a fast-paced scale-up - things move fast and expectations are high. We raised our Series B with Insight Partners in June 2025 and are expanding aggressively, whilst remaining profitable. We have over 100 talented people pulling together to achieve our goals. Everyone is trusted to take ownership, move fast and have a meaningful impact. We prioritise personal and professional growth, keep things fun & we love to celebrate a milestone together. In this role youll grow, be challenged and help shape the future of Xelix. If youre excited about building something special with us, wed love to hear from you. About the
About us - At Xelix, we work with some of the worlds largest companies to automate and strengthen their financial controls. Our AI solutions redefine how Accounts Payable teams operate - moving from manual processes to automated, intelligent workflows. Xelix is a fast-paced scale-up - things move fast and expectations are high. We raised our Series B with Insight Partners in June 2025 and are expanding aggressively, whilst remaining profitable. We have over 100 talented people pulling together to achieve our goals. Everyone is trusted to take ownership, move fast and have a meaningful impact. We prioritise personal and professional growth, keep things fun & we love to celebrate a milestone together. In this role youll grow, be challenged and help shape the future of Xelix. If youre excited about building something special with us, wed love to hear from you. About the
Department: Technology Team: AI Location: London with hybrid ways of working Position type: Short Term Contract (Inside IR35) until the end of Dec 2026 What the hiring manager says - As an AI Data Engineer, youll be at the heart of our efforts to build open telco models and advance AI in the telecom sector. This is a unique opportunity to work with cutting-edge data engineering pipelines, collaborate with academic and industry partners, and contribute to the development of synthetic data and knowledge resources that will shape the future of telecom AI. About the Team Youll join a dynamic, cross-functional team dedicated to advancing AI capabilities in the telecom sector. Our team is growing rapidly, with a culture of collaboration and technical excellence. We value curiosity, initiative, and a drive to set new benchmarks for the industry.
Department: Technology Team: AI Location: London with hybrid ways of working Position type: Short Term Contract (Inside IR35) until the end of Dec 2026 What the hiring manager says - As an AI Data Engineer, youll be at the heart of our efforts to build open telco models and advance AI in the telecom sector. This is a unique opportunity to work with cutting-edge data engineering pipelines, collaborate with academic and industry partners, and contribute to the development of synthetic data and knowledge resources that will shape the future of telecom AI. About the Team Youll join a dynamic, cross-functional team dedicated to advancing AI capabilities in the telecom sector. Our team is growing rapidly, with a culture of collaboration and technical excellence. We value curiosity, initiative, and a drive to set new benchmarks for the industry.
At least 2 years as an SA or at least 4 years in a similar customer-facing role, for example as a technical consultant, solution engineer or implementation engineer at an API-first (REST, GraphQL) SaaS company.
At least 2 years as an SA or at least 4 years in a similar customer-facing role, for example as a technical consultant, solution engineer or implementation engineer at an API-first (REST, GraphQL) SaaS company.
Familiarity with API testing and integration diagnostics
Familiarity with API testing and integration diagnostics
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Oversee API and UI automation using tools like ReadyAPI, SpecFlow, and TestComplete. * Expertise with ReadAPI, SpecFlow, and TestComplete for API automation.
Oversee API and UI automation using tools like ReadyAPI, SpecFlow, and TestComplete. * Expertise with ReadAPI, SpecFlow, and TestComplete for API automation.
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Upvests Investment API is easy to integrate so that fintechs and enterprises alike can save resources and fully focus on their core business.? Our Marketing team ensures Upvests Investment API is widely recognised as the best on the market. * 5+ years of product marketing experience in B2B SaaS, ideally within fintech, investments, or API-driven infrastructure.
Upvests Investment API is easy to integrate so that fintechs and enterprises alike can save resources and fully focus on their core business.? Our Marketing team ensures Upvests Investment API is widely recognised as the best on the market. * 5+ years of product marketing experience in B2B SaaS, ideally within fintech, investments, or API-driven infrastructure.
You possess a strong understanding of cloud computing, microservices, API design, and event-driven architectures.
You possess a strong understanding of cloud computing, microservices, API design, and event-driven architectures.
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Modern tech stack experience - Demonstrable experience with cloud platforms (preferably AWS), containerisation (Docker, Kubernetes), and API design (gRPC, REST).
Modern tech stack experience - Demonstrable experience with cloud platforms (preferably AWS), containerisation (Docker, Kubernetes), and API design (gRPC, REST).
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Join NVIDIA's DGX Cloud Kubernetes API Services team and be at the forefront of building GPU-accelerated Kubernetes clusters supporting NVIDIA AI, robotics, and scientific computing projects. As an API Services Software Engineer, you will work across the stack with partner teams to bring NVIDIA's GPUs to life in a cloud or on-prem environment, ensuring end-to-end performance across compute, storage, and networking. An API Services engineer is above all responsible for ensuring a good customer and developer experience on the DGX Cloud Kubernetes Platform, working with our Runtime and Cluster Architecture teams and more to be the voice of the customer. We serve both customers looking to access their GPU compute via Kubernetes for whatever workloads they wish, as well as developers looking to use our API
Join NVIDIA's DGX Cloud Kubernetes API Services team and be at the forefront of building GPU-accelerated Kubernetes clusters supporting NVIDIA AI, robotics, and scientific computing projects. As an API Services Software Engineer, you will work across the stack with partner teams to bring NVIDIA's GPUs to life in a cloud or on-prem environment, ensuring end-to-end performance across compute, storage, and networking. An API Services engineer is above all responsible for ensuring a good customer and developer experience on the DGX Cloud Kubernetes Platform, working with our Runtime and Cluster Architecture teams and more to be the voice of the customer. We serve both customers looking to access their GPU compute via Kubernetes for whatever workloads they wish, as well as developers looking to use our API
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In this critical role, youll develop and maintain REST API over serverless functions using TypeScript; youll also design and implement scalable PostgreSQL schemas and data models. Other organisations may call this role Software Engineer, Software Developer, Back End Software Engineer, Server-Side Developer, Full Stack Developer, or API Developer.
In this critical role, youll develop and maintain REST API over serverless functions using TypeScript; youll also design and implement scalable PostgreSQL schemas and data models. Other organisations may call this role Software Engineer, Software Developer, Back End Software Engineer, Server-Side Developer, Full Stack Developer, or API Developer.
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Technical knowledge and experience in producing testable, scalable, reusable and resilient services to provide API services to front end systems.
Technical knowledge and experience in producing testable, scalable, reusable and resilient services to provide API services to front end systems.
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Thales people architect identity management and data protection solutions at the heart of digital security. Business and governments rely on us to bring trust to the billons of digital interactions they have with people. Our technologies and services help banks exchange funds, people cross borders, energy become smarter and much more. More than 30,000 organizations already rely on us to verify the identities of people and things, grant access to digital services, analyze vast quantities of information and encrypt data to make the connected world more secure. Together we offer fantastic opportunities for committed employees to learn and develop their career with us. At Thales UK, we research, develop, and supply technology and services that impact the lives of millions of people each day to make life better, and keep us safer.
Thales people architect identity management and data protection solutions at the heart of digital security. Business and governments rely on us to bring trust to the billons of digital interactions they have with people. Our technologies and services help banks exchange funds, people cross borders, energy become smarter and much more. More than 30,000 organizations already rely on us to verify the identities of people and things, grant access to digital services, analyze vast quantities of information and encrypt data to make the connected world more secure. Together we offer fantastic opportunities for committed employees to learn and develop their career with us. At Thales UK, we research, develop, and supply technology and services that impact the lives of millions of people each day to make life better, and keep us safer.
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Design, build and maintain data-intensive web applications and API-driven systems
Design, build and maintain data-intensive web applications and API-driven systems
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Strong technical skills: HTML, CSS, basic JavaScript, API integrations, Workato and troubleshooting.
Strong technical skills: HTML, CSS, basic JavaScript, API integrations, Workato and troubleshooting.
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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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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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Expertise in JavaScript and/or TypeScript and modern React, including Hooks, Context API, Server and Client Components
Expertise in JavaScript and/or TypeScript and modern React, including Hooks, Context API, Server and Client Components
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Expertise in JavaScript and/or TypeScript and modern React, including Hooks, Context API, Server and Client Components
Expertise in JavaScript and/or TypeScript and modern React, including Hooks, Context API, Server and Client Components
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Related Jobs
Locations
- The City, City (EC3)
- Southwark
- The City, City (EC4)
- West Fields
- Euston
- White Hill
- Canary Wharf
- Datchet Common
- Milton
- Shoreditch
- City of London
- South East London
- South West London
- Cambridge
- Central London
- Milton Keynes
- Reading
- West End
- Newbury
- North London
- London
- Berkshire
- Buckinghamshire
- Cambridgeshire
- Surrey
- Oxfordshire
- East Sussex
- Bedfordshire
- Essex
- Hampshire
- South East
- East Anglia