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- London
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64 API jobs in City of London + 20 miles
216 exact matches jobs are outside your preferred location
Accueil - Nos offres d'emploi - Nous recherchons un - Retour la liste des offres - Contrat - CDI (Permanent) Horaires - Temps plein - Localisation - Londres, Angleterre, Royaume-Uni - Marque - Métier - Informatique - Mise jour le 09.10.2025 - Our company purpose is to contribute to a responsible and sustainable economy by financing and advising clients according to the highest ethical standards. * Being a great place to work * Committed to sustainability and having a positive impact * Being dedicated to the development of our people - Business area - Global Markets (GM) IT Risk and P&L development consists of approximately 300 people spread between London, Paris, New York, India and Asia, developing software to support systems for Risk, P&L and Financial Resources data for Global Markets. Within the GM IT Risk and P&L development, the Data Services team are responsibl
Accueil - Nos offres d'emploi - Nous recherchons un - Retour la liste des offres - Contrat - CDI (Permanent) Horaires - Temps plein - Localisation - Londres, Angleterre, Royaume-Uni - Marque - Métier - Informatique - Mise jour le 09.10.2025 - Our company purpose is to contribute to a responsible and sustainable economy by financing and advising clients according to the highest ethical standards. * Being a great place to work * Committed to sustainability and having a positive impact * Being dedicated to the development of our people - Business area - Global Markets (GM) IT Risk and P&L development consists of approximately 300 people spread between London, Paris, New York, India and Asia, developing software to support systems for Risk, P&L and Financial Resources data for Global Markets. Within the GM IT Risk and P&L development, the Data Services team are responsibl
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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
General Information Locations : Guildford, Surrey, United Kingdom - Role ID 211108 Worker Type Intern - Temporary Employee Studio/Department EA Studios - Criterion Games Work Model Hybrid Description & Requirements Electronic Arts creates next-level entertainment experiences that inspire players and fans around the world. Here, everyone is part of the story. Part of a community that connects across the globe. A place where creativity thrives, new perspectives are invited, and ideas matter. A team where everyone makes play happen. Rendering Software Engineer Intern - Contract: 12-month Internship Location: Guildford, UK Work Model: Hybrid (3 days in-office) Electronic Arts creates next-level entertainment experiences that inspire players and fans around the world. The Challenge Ahead - Battlefield is a storied franchise renowned for uncompromising combat gameplay for o
General Information Locations : Guildford, Surrey, United Kingdom - Role ID 211108 Worker Type Intern - Temporary Employee Studio/Department EA Studios - Criterion Games Work Model Hybrid Description & Requirements Electronic Arts creates next-level entertainment experiences that inspire players and fans around the world. Here, everyone is part of the story. Part of a community that connects across the globe. A place where creativity thrives, new perspectives are invited, and ideas matter. A team where everyone makes play happen. Rendering Software Engineer Intern - Contract: 12-month Internship Location: Guildford, UK Work Model: Hybrid (3 days in-office) Electronic Arts creates next-level entertainment experiences that inspire players and fans around the world. The Challenge Ahead - Battlefield is a storied franchise renowned for uncompromising combat gameplay for o
About Morningstar Sustainalytics - Morningstar Sustainalytics delivers high-quality, analytical environmental, social and governance (ESG) and climate research, ratings and data to institutional investors and companies. Our research is empowering the worlds leading institutional investors to identify, understand, and manage risks and opportunities from an ESG perspective. We are a global leader in sustainability and corporate ESG solutions, informing and advocating to improve the world we live in. About the role - We are seeking a Chief Product Officer to oversee all product development for Sustainalytics. This includes our flagship ESG Research products (ESG Risk, Regulatory Solutions, Impact Solutions) as well as Climate Solutions, Stewardship Services and Sustainable Finance. The position will also be responsible for our data and research delivery strategy through
About Morningstar Sustainalytics - Morningstar Sustainalytics delivers high-quality, analytical environmental, social and governance (ESG) and climate research, ratings and data to institutional investors and companies. Our research is empowering the worlds leading institutional investors to identify, understand, and manage risks and opportunities from an ESG perspective. We are a global leader in sustainability and corporate ESG solutions, informing and advocating to improve the world we live in. About the role - We are seeking a Chief Product Officer to oversee all product development for Sustainalytics. This includes our flagship ESG Research products (ESG Risk, Regulatory Solutions, Impact Solutions) as well as Climate Solutions, Stewardship Services and Sustainable Finance. The position will also be responsible for our data and research delivery strategy through
Familiarity with API testing and integration diagnostics
Familiarity with API testing and integration diagnostics
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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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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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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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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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Experience with Akamai Edge solutions for OT/cloud API protection.
Experience with Akamai Edge solutions for OT/cloud API protection.
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You will lead the security of high-performance computing (HPC) environments and associated systems, leveraging Akamai Edge solutions (e.g., Kona Site Defender, Edge DNS, App & API Protector) to protect classified infrastructure. * Design and implement security strategies for HPC environments and defence systems, integrating Akamai Edge solutions for DDoS mitigation, WAF, and API protection. * Expertise in Akamai Edge solutions (e.g., Kona Site Defender, Edge DNS, EdgeWorkers) for DDoS, WAF, and API protection.
You will lead the security of high-performance computing (HPC) environments and associated systems, leveraging Akamai Edge solutions (e.g., Kona Site Defender, Edge DNS, App & API Protector) to protect classified infrastructure. * Design and implement security strategies for HPC environments and defence systems, integrating Akamai Edge solutions for DDoS mitigation, WAF, and API protection. * Expertise in Akamai Edge solutions (e.g., Kona Site Defender, Edge DNS, EdgeWorkers) for DDoS, WAF, and API protection.
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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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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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Extensive Salesforce development experience (including Apex triggers, classes, asynchronous Apex, API Integrations, Platform Events, LWCs and Sites)
Extensive Salesforce development experience (including Apex triggers, classes, asynchronous Apex, API Integrations, Platform Events, LWCs and Sites)
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Automated end-to-end and API testing tools and techniques
Automated end-to-end and API testing tools and techniques
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Experience creating RESTful APIs and ensuring API extensibility.
Experience creating RESTful APIs and ensuring API extensibility.
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Expertise in Salesforce deployment strategies, including change sets, Salesforce DX, and metadata API. * Experience in Salesforce API integration (REST, SOAP, Platform Events).
Expertise in Salesforce deployment strategies, including change sets, Salesforce DX, and metadata API. * Experience in Salesforce API integration (REST, SOAP, Platform Events).
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We serve millions of API requests with a 99.5% availability SLA. * Familiarity with API design and experience with at least one web framework
We serve millions of API requests with a 99.5% availability SLA. * Familiarity with API design and experience with at least one web framework
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API Development and Management: Develop, deploy, and maintain custom APIs (REST, SOAP) to facilitate seamless data exchange and action execution between Agentforce and other systems. * 5+ years of hands-on experience in a technical integration role, such as an Integration Developer or API Specialist. * Expertise in API design and development (REST, SOAP, webhooks).
API Development and Management: Develop, deploy, and maintain custom APIs (REST, SOAP) to facilitate seamless data exchange and action execution between Agentforce and other systems. * 5+ years of hands-on experience in a technical integration role, such as an Integration Developer or API Specialist. * Expertise in API design and development (REST, SOAP, webhooks).
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Influence API and BFF design to optimise clientserver contracts and reduce complexity at the edges.
Influence API and BFF design to optimise clientserver contracts and reduce complexity at the edges.
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Recurring Payments Innovation: Build rock-solid API infrastructure and platform capabilities for pull payment functionality, tackling complex collection challenges head-on. * B2B Technical Product Expertise: You've got solid experience with API products, PaaS solutions, or technical SaaS platforms and love building merchant banking infrastructure for developers who integrate multiple financial endpoints and banking APIs.
Recurring Payments Innovation: Build rock-solid API infrastructure and platform capabilities for pull payment functionality, tackling complex collection challenges head-on. * B2B Technical Product Expertise: You've got solid experience with API products, PaaS solutions, or technical SaaS platforms and love building merchant banking infrastructure for developers who integrate multiple financial endpoints and banking APIs.
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Related Jobs
Locations
- London
- Central London
- Canary Wharf
- South West London
- East London
- Moorgate, City of London
- South East London
- North London
- West End
- Clerkenwell
- Birmingham
- Manchester
- Leeds
- East Midlands
- Bristol
- South East
- Cardiff
- Derby
- Guildford
- Essex
- Woking
- Nottingham
- Bournemouth
- North East
- Milton Keynes
- Cambridgeshire
- Kent
- Yorkshire
- West London
- Cambridge
- Glasgow
- Hampshire
- Surrey
- Newcastle Upon Tyne
- Hertfordshire
- Ipswich
- Lancashire
- Slough
- Wolverhampton
- Stevenage
- Cheltenham
- Norwich
- Nottinghamshire
- North West
- Bedford
- County Antrim
- Reigate
- Southampton
- Kingston Upon Thames
- Portsmouth