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30 API jobs in Henley-On-Thames + 20 miles
336 exact matches jobs are outside your preferred location
London, UK - Full time - 2025-09-05 - Posted 30+ Days Ago - 314612 - 09 - The Location: London, United Kingdom - S&P Global Ratings is looking for a highly motivated, enthusiastic and skilled senior developer to join Commercial Desktop team within Commercial Engineering, a team of technology professionals who define and execute the strategic roadmap for S&P Global Ratings Commercial team. The successful candidate will participate in the design and development of Commercial Desktop platform to help improve commercial workflows and overall productivity. The Team: Join the Rating Organization's Commercial Desktop Engineering Team, known for its expertise in commercial workflows and various technology stacks. This team values knowledge sharing, collaboration, and a unified strategy to build S&P Ratings' Commercial Desktop platform.
London, UK - Full time - 2025-09-05 - Posted 30+ Days Ago - 314612 - 09 - The Location: London, United Kingdom - S&P Global Ratings is looking for a highly motivated, enthusiastic and skilled senior developer to join Commercial Desktop team within Commercial Engineering, a team of technology professionals who define and execute the strategic roadmap for S&P Global Ratings Commercial team. The successful candidate will participate in the design and development of Commercial Desktop platform to help improve commercial workflows and overall productivity. The Team: Join the Rating Organization's Commercial Desktop Engineering Team, known for its expertise in commercial workflows and various technology stacks. This team values knowledge sharing, collaboration, and a unified strategy to build S&P Ratings' Commercial Desktop platform.
Overview: Working at Atlassian - Atlassians have flexibility in where they work whether in an office, from home, or a combination of the two. That way, Atlassians have more control over supporting their family, personal goals, and other priorities. We can hire people in any country where we have a legal entity. Interviews and onboarding are conducted virtually, as part of being a distributed-first company. Your future team - As a Senior Forward Deployed Engineering Manager (FDE) at Atlassian, youll be at the forefront of applied AI, working directly with customers and cross-functional teams to deliver innovative, AI-powered solutions. The FDE team partners with top organizations across industries, helping them leverage Atlassians AI capabilities to solve complex, real-world problems. Youll collaborate with product, engineering, and design, rapidly growing your technic
Overview: Working at Atlassian - Atlassians have flexibility in where they work whether in an office, from home, or a combination of the two. That way, Atlassians have more control over supporting their family, personal goals, and other priorities. We can hire people in any country where we have a legal entity. Interviews and onboarding are conducted virtually, as part of being a distributed-first company. Your future team - As a Senior Forward Deployed Engineering Manager (FDE) at Atlassian, youll be at the forefront of applied AI, working directly with customers and cross-functional teams to deliver innovative, AI-powered solutions. The FDE team partners with top organizations across industries, helping them leverage Atlassians AI capabilities to solve complex, real-world problems. Youll collaborate with product, engineering, and design, rapidly growing your technic
Strong understanding of data integration concepts, file formats (CSV, Excel), and API-based workflows. * Hands-on experience with Postman for API testing, plus ability to read and analyze technical logs.
Strong understanding of data integration concepts, file formats (CSV, Excel), and API-based workflows. * Hands-on experience with Postman for API testing, plus ability to read and analyze technical logs.
Lead API design, integration strategies, and legacy modernization to microservices. * Integration - API Design & Management, CMS, Legacy Migration
Lead API design, integration strategies, and legacy modernization to microservices. * Integration - API Design & Management, CMS, Legacy Migration
Conduct UI and API testing.
Conduct UI and API testing.
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Dynamics 365 Customer Service, Dynamics 365 Web API
Dynamics 365 Customer Service, Dynamics 365 Web API
Familiarity with API testing and integration diagnostics
Familiarity with API testing and integration diagnostics
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Implement data solutions leveraging AWS services such as EMR, AWS Glue, AWS Lambda, Athena, API Gateway and AWS Step Functions * Hands-on experience with AWS data services such as EMR, AWS Glue, AWS Lambda, Athena, API Gateway and AWS Step Functions
Implement data solutions leveraging AWS services such as EMR, AWS Glue, AWS Lambda, Athena, API Gateway and AWS Step Functions * Hands-on experience with AWS data services such as EMR, AWS Glue, AWS Lambda, Athena, API Gateway and AWS Step Functions
Youll join the team responsible for running the core infrastructure that supports products like ChatGPT and the API.
Youll join the team responsible for running the core infrastructure that supports products like ChatGPT and the API.
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.
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Experience of working with REST API
Experience of working with REST API
Proven track record building and scaling data platforms and API-first products, with the ability to drive innovation and adoption.
Proven track record building and scaling data platforms and API-first products, with the ability to drive innovation and adoption.
The Runa API empowers thousands of businesses to make payments to 5 billion+ consumers in 190+ countries instantly to cards, wallets, bank accounts and gift cards.
The Runa API empowers thousands of businesses to make payments to 5 billion+ consumers in 190+ countries instantly to cards, wallets, bank accounts and gift cards.
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Our core technology is a proprietary suite of real-time indicators and predictive analytics available via web application, custom dashboards and API. * Understand the importance of design best practices, provide effective translation to code artifacts and implement appropriate integration approach for API/data layer.
Our core technology is a proprietary suite of real-time indicators and predictive analytics available via web application, custom dashboards and API. * Understand the importance of design best practices, provide effective translation to code artifacts and implement appropriate integration approach for API/data layer.
Experience consuming RESTful API services * Experience writing RESTful API services, either in Javascript or TypeScript
Experience consuming RESTful API services * Experience writing RESTful API services, either in Javascript or TypeScript
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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APIs: Implement API security best practices (rate limiting, authentication, input validation)
APIs: Implement API security best practices (rate limiting, authentication, input validation)
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Mastercard Developers ( is the primary API platform for Mastercard partners to access a diverse range of payment, data, loyalty, and security APIs. The team is responsible for delivering an experience that ensures developers can quickly find the right API, assess its technical capabilities and integrate it into new and innovative solutions. Act as subject matter expert for Mastercard Developers API Platform and services to support customer integrations on occasion - Proven track record in API based products
Mastercard Developers ( is the primary API platform for Mastercard partners to access a diverse range of payment, data, loyalty, and security APIs. The team is responsible for delivering an experience that ensures developers can quickly find the right API, assess its technical capabilities and integrate it into new and innovative solutions. Act as subject matter expert for Mastercard Developers API Platform and services to support customer integrations on occasion - Proven track record in API based products
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Halian Technology are searching for an Interim API Integrations Specialist to join our client's forward-thinking technology team. * Design, develop, and maintain API integrations between internal systems and external SaaS platforms. * Build and maintain API documentation, providing guidance on integration best practices. * Familiarity with RESTful API design, OAuth2/API authentication, and workflow automation (Power Automate). * Familiarity with Power Apps, Power BI, Microsoft Graph API, Azure Logic Apps/Functions, and Dataverse. Apply now and help energise the future with your expertise in API integration.
Halian Technology are searching for an Interim API Integrations Specialist to join our client's forward-thinking technology team. * Design, develop, and maintain API integrations between internal systems and external SaaS platforms. * Build and maintain API documentation, providing guidance on integration best practices. * Familiarity with RESTful API design, OAuth2/API authentication, and workflow automation (Power Automate). * Familiarity with Power Apps, Power BI, Microsoft Graph API, Azure Logic Apps/Functions, and Dataverse. Apply now and help energise the future with your expertise in API integration.
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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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Implementation of secure authentication using PKI, OIDC, and OAuth 2.0, and automates testing with unit and API tests.
Implementation of secure authentication using PKI, OIDC, and OAuth 2.0, and automates testing with unit and API tests.
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Experience with Akamai Edge solutions for OT/cloud API protection.
Experience with Akamai Edge solutions for OT/cloud API protection.
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Skilled in cloud technologies (Azure, GCP, or AWS), microservices, and API strategy
Skilled in cloud technologies (Azure, GCP, or AWS), microservices, and API strategy
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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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To complement the efficient networking architecture, you will help designing Infrastructure-as-a-Service virtual network orchestration API-driven services to support tenants workloads security and performance SLAs for BMaaS, VMaaS and Kubernetes. * Hands-on experience developing secure and performant API-driven services (gRPC, ReST with transport encryption and strong authentication)
To complement the efficient networking architecture, you will help designing Infrastructure-as-a-Service virtual network orchestration API-driven services to support tenants workloads security and performance SLAs for BMaaS, VMaaS and Kubernetes. * Hands-on experience developing secure and performant API-driven services (gRPC, ReST with transport encryption and strong authentication)
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Related Jobs
Locations
- The City, City (EC3)
- The City, City (EC4)
- Holborn
- Canary Wharf
- Clerkenwell
- Datchet Common
- Euston
- Frimley
- Ireland
- Mayfair
- City of London
- Reading
- Central London
- West End
- Southampton
- South East London
- East London
- Northampton
- South West London
- Cheltenham
- London
- Berkshire
- Hampshire
- Surrey
- Oxfordshire
- Northamptonshire
- Buckinghamshire
- Gloucestershire
- Hertfordshire
- Bedfordshire
- South East
- East Midlands
- Midlands
- South West