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- The City, City (EC3)
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61 Contract API jobs in West Fields, South West London + 20 miles
137 exact matches jobs are outside your preferred location
SharePoint CSOM API
SharePoint CSOM API
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3+ years of full-time work experience in API development.
3+ years of full-time work experience in API development.
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Proficiency with databases (SQL/NoSQL) and API integration.
Proficiency with databases (SQL/NoSQL) and API integration.
Senior Site Reliability Engineer, Managed Kubernetes - Europe
Senior Site Reliability Engineer, Managed Kubernetes - Europe
Lambda Group Limited
London
£161,000 - £310,000 a year
Proven experience provisioning Kubernetes using tools such as kubeadm, Cluster API, or similar
Proven experience provisioning Kubernetes using tools such as kubeadm, Cluster API, or similar
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Assist clients in seamless API integration, furnishing comprehensive documentation and hands-on support for smooth implementation. * Strong knowledge of API integration, RESTful APIs, and API troubleshooting.
Assist clients in seamless API integration, furnishing comprehensive documentation and hands-on support for smooth implementation. * Strong knowledge of API integration, RESTful APIs, and API troubleshooting.
We are building the first European Investment API that empowers businesses to offer seamless investment experiences to their users. We are looking for a full-time Head of Engineering to help us build a securities API for financial institutions, the first API of that kind in Europe. These teams are responsible for critical domains such as Orders, Trading Partner integrations, Position, and Wealth Management, all of which are essential for Upvests Investment API. The Brokerage Tribe plays a crucial role in the Investment API Platform, overseeing a wide range of user journey aspects. * Assume ownership of business-critical components within the Investment API, influencing its roadmap and delivering strategic impact to establish Upvest as a reliable partner. * Experience
We are building the first European Investment API that empowers businesses to offer seamless investment experiences to their users. We are looking for a full-time Head of Engineering to help us build a securities API for financial institutions, the first API of that kind in Europe. These teams are responsible for critical domains such as Orders, Trading Partner integrations, Position, and Wealth Management, all of which are essential for Upvests Investment API. The Brokerage Tribe plays a crucial role in the Investment API Platform, overseeing a wide range of user journey aspects. * Assume ownership of business-critical components within the Investment API, influencing its roadmap and delivering strategic impact to establish Upvest as a reliable partner. * Experience
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Join the API Revolution at Gravitee - Where Innovation Meets Growth - Since our beginnings in 2015, Gravitee has grown into a global force, recognised as a Gartner Magic Quadrant Leader for API Management in 2024 and 2025! What started with four developers challenging the complexities of APIs has evolved into a revolutionary platform powering API and event stream ecosystems worldwide. Be part of a team thats redefining whats possible in API management, and shaping the future of digital transformation. Gravitee.io is taking APIs to the next level, we are the premier, open-source API platform and we want everyone to know how amazing our software is. * API Integration & Development: Leverage REST APIs to connect disparate systems, troubleshoot integration issues, and ens
Join the API Revolution at Gravitee - Where Innovation Meets Growth - Since our beginnings in 2015, Gravitee has grown into a global force, recognised as a Gartner Magic Quadrant Leader for API Management in 2024 and 2025! What started with four developers challenging the complexities of APIs has evolved into a revolutionary platform powering API and event stream ecosystems worldwide. Be part of a team thats redefining whats possible in API management, and shaping the future of digital transformation. Gravitee.io is taking APIs to the next level, we are the premier, open-source API platform and we want everyone to know how amazing our software is. * API Integration & Development: Leverage REST APIs to connect disparate systems, troubleshoot integration issues, and ens
Role Sr. Technology Architect - Technology Data Modelling, ERWIN Modelling, Azure Architect, PySpark - Location UK(London) Job Description - Data Architect should have key understanding of building Data Models, Experience in Data Architecting and Engineering space on Spark, Pyspark, ADF, Azure Synapse and Data Lake. Your role - In the role of a Sr Technology Architect, you will primarily be responsible for identifying best-fit architectural solutions for one or more projects; develop design of application, provide regular support/guidance to project teams on complex coding, issue resolution and execution - As a thought and solution leader, you will be the key advisor to architecture and design reviews. You will anchor business pursuit initiatives, client discussions, in-house capability building. You will have the opportunity to shape value-adding solutions that enabl
Role Sr. Technology Architect - Technology Data Modelling, ERWIN Modelling, Azure Architect, PySpark - Location UK(London) Job Description - Data Architect should have key understanding of building Data Models, Experience in Data Architecting and Engineering space on Spark, Pyspark, ADF, Azure Synapse and Data Lake. Your role - In the role of a Sr Technology Architect, you will primarily be responsible for identifying best-fit architectural solutions for one or more projects; develop design of application, provide regular support/guidance to project teams on complex coding, issue resolution and execution - As a thought and solution leader, you will be the key advisor to architecture and design reviews. You will anchor business pursuit initiatives, client discussions, in-house capability building. You will have the opportunity to shape value-adding solutions that enabl
Role Technical Test Lead - Technology Test Automation Architect - Location London, United Kingdom - Compensation Competitive (including bonus) Job Description - Today, the corporate landscape is dynamic and the world ahead is full of possibilities! None of the amazing things we do at Infosys would be possible without an equally amazing culture, the environment where ideas can flourish and where you are empowered to move forward as far as your ideas will take you. At Infosys, we assure that your career will never stand still, we will inspire you to build whats next and we will navigate further together. Our journey of learnability, values and trusted relationships with our clients continue to be the cornerstones of our organization and these values are upheld only because of our people. Your role - As a Test Automation Lead, you will be instrumental in shaping and exec
Role Technical Test Lead - Technology Test Automation Architect - Location London, United Kingdom - Compensation Competitive (including bonus) Job Description - Today, the corporate landscape is dynamic and the world ahead is full of possibilities! None of the amazing things we do at Infosys would be possible without an equally amazing culture, the environment where ideas can flourish and where you are empowered to move forward as far as your ideas will take you. At Infosys, we assure that your career will never stand still, we will inspire you to build whats next and we will navigate further together. Our journey of learnability, values and trusted relationships with our clients continue to be the cornerstones of our organization and these values are upheld only because of our people. Your role - As a Test Automation Lead, you will be instrumental in shaping and exec
Documenting product designs, data flows and API specs, and maintaining backlog in Jira or similar tools
Documenting product designs, data flows and API specs, and maintaining backlog in Jira or similar tools
You are an expert in Layer 7 products like: DDoS Protection, WAF, API Gateway, Bot Management, Certificates Manager, Rate Limiting, SSL and Page Shield.
You are an expert in Layer 7 products like: DDoS Protection, WAF, API Gateway, Bot Management, Certificates Manager, Rate Limiting, SSL and Page Shield.
Our API service layer is written in Go, following a documentation-first mindset. * Experience delivering cloud-based REST API solutions
Our API service layer is written in Go, following a documentation-first mindset. * Experience delivering cloud-based REST API solutions
Experience developing and integrating with Azure Services (e.g. Azure Functions, App Services, Entra ID, Cosmos DB, API Management, Redis, App Configuration).
Experience developing and integrating with Azure Services (e.g. Azure Functions, App Services, Entra ID, Cosmos DB, API Management, Redis, App Configuration).
Location - London - Employment Type - Full time - Department - Product R&D - About G2 - The Company - When you join G2, youre joining the team that helps businesses reach their peak potential by powering decisions and strategies with trusted insights from real software users. G2 is the world's largest and most trusted software marketplace. More than 100 million people annually including employees at all Fortune 500 companies use G2 to make smarter software decisions based on authentic peer reviews. Thousands of software and services companies of all sizes partner with G2 to build their reputation and grow their business including Salesforce, HubSpot, Zoom, and Adobe. To learn more about where you go for software, visit and follow us on LinkedIn. As we continue on our growth journey, we are striving to be the most trusted data source in the age of AI for informing soft
Location - London - Employment Type - Full time - Department - Product R&D - About G2 - The Company - When you join G2, youre joining the team that helps businesses reach their peak potential by powering decisions and strategies with trusted insights from real software users. G2 is the world's largest and most trusted software marketplace. More than 100 million people annually including employees at all Fortune 500 companies use G2 to make smarter software decisions based on authentic peer reviews. Thousands of software and services companies of all sizes partner with G2 to build their reputation and grow their business including Salesforce, HubSpot, Zoom, and Adobe. To learn more about where you go for software, visit and follow us on LinkedIn. As we continue on our growth journey, we are striving to be the most trusted data source in the age of AI for informing soft
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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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About Keyrock - Since our beginnings in 2017, weve grown to be a leading change-maker in the digital asset space, renowned for our partnerships and innovation. Today, we rock with over 200 team members around the world. Our diverse team hails from 42 nationalities, with backgrounds ranging from DeFi natives to PhDs. Predominantly remote, we have hubs in London, Brussels, Singapore and Paris, and host regular online and offline hangouts to keep the crew tight. We are trading on more than 80 exchanges, and working with a wide array of asset issuers. As a well-established market maker, our distinctive expertise led us to expand rapidly. Today, our services span market making, options trading, high-frequency trading, OTC, and DeFi trading desks as well as digital asset management. Keyrock is looking to expand and establish itself as a full-service financial institution th
About Keyrock - Since our beginnings in 2017, weve grown to be a leading change-maker in the digital asset space, renowned for our partnerships and innovation. Today, we rock with over 200 team members around the world. Our diverse team hails from 42 nationalities, with backgrounds ranging from DeFi natives to PhDs. Predominantly remote, we have hubs in London, Brussels, Singapore and Paris, and host regular online and offline hangouts to keep the crew tight. We are trading on more than 80 exchanges, and working with a wide array of asset issuers. As a well-established market maker, our distinctive expertise led us to expand rapidly. Today, our services span market making, options trading, high-frequency trading, OTC, and DeFi trading desks as well as digital asset management. Keyrock is looking to expand and establish itself as a full-service financial institution th
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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.
C# .NET Software Developer (Full time or Part time)
C# .NET Software Developer (Full time or Part time)
Gas Management Services Limited
Epping, Essex
Competitive
We have a great opportunity for a C# .NET Software Developer (Full time or Part time) to join our team in Cambridge. Apply with your CV and covering letter - Opportunity - We have a great opportunity for a C# .NET Software Developer to join our fantastic software development team based in Cambridge. This is an ideal role for someone who wants to join a friendly, small and highly technical team where you can have a real impact. The role - You will be embedded as a full-stack developer in one of our small agile development teams. You will collaborate alongside product owners, testers and other developers to develop features for our power-scheduling software product. Our view of agile software development is inspired by eXtreme Programming rather than Scrum. We focus more on the technical practices that enable agility, such as TDD, Pair Programming, SOLID, Simple Design
We have a great opportunity for a C# .NET Software Developer (Full time or Part time) to join our team in Cambridge. Apply with your CV and covering letter - Opportunity - We have a great opportunity for a C# .NET Software Developer to join our fantastic software development team based in Cambridge. This is an ideal role for someone who wants to join a friendly, small and highly technical team where you can have a real impact. The role - You will be embedded as a full-stack developer in one of our small agile development teams. You will collaborate alongside product owners, testers and other developers to develop features for our power-scheduling software product. Our view of agile software development is inspired by eXtreme Programming rather than Scrum. We focus more on the technical practices that enable agility, such as TDD, Pair Programming, SOLID, Simple Design
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
As a Data Analyst, specialising in Marketing you will be responsible for collecting, analysing, and interpreting marketing data to support decision-making across campaigns, channels, and customer segments. This role requires strong technical skills in Python and SQL to automate data pipelines, build analytical models, and generate actionable insights that drive growth, optimize ROI, and improve marketing performance. While the role is primarily focused around Marketing Data, there will be scope for involvement in wider Data Projects around Trading, Client Analytics, Sales, Compliance, Risk. Who we are - We are Trade Nation. We help our customers power up their trading through killer insights, transparent costs, and fairer ways to trade. Were innovators, and proud of it. And weve grown a lot in our decade as a market-leading low-cost trading powerhouse.
As a Data Analyst, specialising in Marketing you will be responsible for collecting, analysing, and interpreting marketing data to support decision-making across campaigns, channels, and customer segments. This role requires strong technical skills in Python and SQL to automate data pipelines, build analytical models, and generate actionable insights that drive growth, optimize ROI, and improve marketing performance. While the role is primarily focused around Marketing Data, there will be scope for involvement in wider Data Projects around Trading, Client Analytics, Sales, Compliance, Risk. Who we are - We are Trade Nation. We help our customers power up their trading through killer insights, transparent costs, and fairer ways to trade. Were innovators, and proud of it. And weve grown a lot in our decade as a market-leading low-cost trading powerhouse.
At Bluecrest, were more than a health assessment provider - were the health intelligence company. Since our founding in 2012, weve been on a mission to make high-quality, affordable health monitoring accessible to everyone across the UK and Ireland. Serving both individual customers and businesses, we empower people to take control of their wellbeing through early detection and long-term health insights. Our purpose is simple yet powerful: to give everyone confidence in their health. By 2028, our vision is to be the UKs leading health intelligence company, delivering vital health insights to over a million people every single day. Were proud to help people live healthier for longer, and we do it by making personal health monitoring easy, affordable, and impactful. Join us in shaping the future of health intelligence, where your work makes a real difference, every day.
At Bluecrest, were more than a health assessment provider - were the health intelligence company. Since our founding in 2012, weve been on a mission to make high-quality, affordable health monitoring accessible to everyone across the UK and Ireland. Serving both individual customers and businesses, we empower people to take control of their wellbeing through early detection and long-term health insights. Our purpose is simple yet powerful: to give everyone confidence in their health. By 2028, our vision is to be the UKs leading health intelligence company, delivering vital health insights to over a million people every single day. Were proud to help people live healthier for longer, and we do it by making personal health monitoring easy, affordable, and impactful. Join us in shaping the future of health intelligence, where your work makes a real difference, every day.
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
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Locations
- The City, City (EC3)
- Southwark
- The City, City (EC4)
- West Fields
- Euston
- The Borough
- Datchet Common
- Frimley
- Holborn
- Ireland
- City of London
- South East London
- Reading
- Central London
- West End
- Cambridge
- Milton Keynes
- Newbury
- North West London
- Bedford
- London
- Berkshire
- Buckinghamshire
- Cambridgeshire
- Surrey
- Bedfordshire
- Hampshire
- East Sussex
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