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83 API jobs in Central London + 20 miles
412 exact matches jobs are outside your preferred location
We are looking for an experienced individual in IT business analysis to take up the role of Senior IT Business Analyst to lead the requirements management process and be involved in the complete product delivery life cycle from conceptualisation to production. The role requires working closely with Product, Engineering and Operations teams to capture, review and build requirements for new product launches and improvements to existing features on the FX Matching Venue. The role presents an opportunity work in a fast-paced high performance environment to deliver value to our customers. Main Responsibilities * Work with product, architecture, engineering, operations teams to produce and sign-off requirements. * Use a multitude of ways to elaborate requirements including diagrams, flowcharts, tables, text to improve the understanding of requirements.
We are looking for an experienced individual in IT business analysis to take up the role of Senior IT Business Analyst to lead the requirements management process and be involved in the complete product delivery life cycle from conceptualisation to production. The role requires working closely with Product, Engineering and Operations teams to capture, review and build requirements for new product launches and improvements to existing features on the FX Matching Venue. The role presents an opportunity work in a fast-paced high performance environment to deliver value to our customers. Main Responsibilities * Work with product, architecture, engineering, operations teams to produce and sign-off requirements. * Use a multitude of ways to elaborate requirements including diagrams, flowcharts, tables, text to improve the understanding of requirements.
LSEG is seeking a Senior Penetration Tester to join our internal offensive security team. This role is hands-on and deeply technical, responsible for planning and driving penetration tests across a wide range of systems and applications. The successful candidate will be a skilled offensive security professional with a passion for uncovering vulnerabilities and improving security posture through thorough testing and teamwork. Key Responsibilities * Conduct in-depth penetration tests on applications, infrastructure, and cloud environments. * Take full ownership of assigned penetration testing engagements end-to-end and deliver with limited oversight. * Compile technical scoping documents, track and document assessment metadata - o Engagement details (who, what, when, where) o Testing team members and roles - o Tools and methodologies used - o Schedule and timelines
LSEG is seeking a Senior Penetration Tester to join our internal offensive security team. This role is hands-on and deeply technical, responsible for planning and driving penetration tests across a wide range of systems and applications. The successful candidate will be a skilled offensive security professional with a passion for uncovering vulnerabilities and improving security posture through thorough testing and teamwork. Key Responsibilities * Conduct in-depth penetration tests on applications, infrastructure, and cloud environments. * Take full ownership of assigned penetration testing engagements end-to-end and deliver with limited oversight. * Compile technical scoping documents, track and document assessment metadata - o Engagement details (who, what, when, where) o Testing team members and roles - o Tools and methodologies used - o Schedule and timelines
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Proficiency in REST API development
Proficiency in REST API development
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API-centric architectures.
API-centric architectures.
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We're looking for a skilled Full-Stack Developer who thrives at the intersection of geospatial data, modern web technologies, and backend API development. Backend: Node.js, Python, .NET (or equivalent) API development * Proven experience in front-end mapping libraries and backend API development
We're looking for a skilled Full-Stack Developer who thrives at the intersection of geospatial data, modern web technologies, and backend API development. Backend: Node.js, Python, .NET (or equivalent) API development * Proven experience in front-end mapping libraries and backend API development
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The Hoddesdon site has state-of-the-art Good Manufacturing Practice (GMP) standard facilities for the development of Active Pharmaceutical Ingredients (API), Formulation Development (FD) and Process Chemistry (PC).
The Hoddesdon site has state-of-the-art Good Manufacturing Practice (GMP) standard facilities for the development of Active Pharmaceutical Ingredients (API), Formulation Development (FD) and Process Chemistry (PC).
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You consider things like API documentation, SDK functionality, and developer onboarding and can speak the language of a developer.
You consider things like API documentation, SDK functionality, and developer onboarding and can speak the language of a developer.
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Experience with relational databases and API design.
Experience with relational databases and API design.
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API development using technologies and standards like REST/GraphQL/gRPC or similar.
API development using technologies and standards like REST/GraphQL/gRPC or similar.
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FIEQ Product, BNY London - At BNY, our culture allows us to run our company better and enables employees growth and success. As a leading global financial services company at the heart of the global financial system, we influence nearly 20% of the worlds investible assets. Every day, our teams harness cutting-edge AI and breakthrough technologies to collaborate with clients, driving transformative solutions that redefine industries and uplift communities worldwide. Recognized as a top destination for innovators and champions of inclusion, BNY is where bold ideas meet advanced technology and exceptional talent. Together, we power the future of finance and this is what #LifeAtBNY is all about. Join us and be part of something extraordinary. The Markets business helps our clients formulate, implement and operationalize their investment strategies.
FIEQ Product, BNY London - At BNY, our culture allows us to run our company better and enables employees growth and success. As a leading global financial services company at the heart of the global financial system, we influence nearly 20% of the worlds investible assets. Every day, our teams harness cutting-edge AI and breakthrough technologies to collaborate with clients, driving transformative solutions that redefine industries and uplift communities worldwide. Recognized as a top destination for innovators and champions of inclusion, BNY is where bold ideas meet advanced technology and exceptional talent. Together, we power the future of finance and this is what #LifeAtBNY is all about. Join us and be part of something extraordinary. The Markets business helps our clients formulate, implement and operationalize their investment strategies.
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Design, implement, and optimize RESTful API endpoints to support client-side functionality.
Design, implement, and optimize RESTful API endpoints to support client-side functionality.
Expertise in cloud architecture, microservices, API gateway design, DevOps practices, datapipelines, and enterprise service mesh architecture.
Expertise in cloud architecture, microservices, API gateway design, DevOps practices, datapipelines, and enterprise service mesh architecture.
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At ZeroAvia, were clean sky thinkers. For the world to achieve truly clean, guilt-free flight, we need a scalable solution; hydrogen-electric powertrains. As a leader in zero-emission aviation and a UK Jet Zero Council member, were designing and commercialising hydrogen-powered solutions that will positively impact the future of aviation, global connectivity, and the world. Engineering designs our next-generation hydrogen electric engines. Working across Hydrogen, Propulsion and Integration divisions, they solve technical problems and help decarbonize aviation by finding solutions for electric propulsion, hydrogen storage, fuel cell technology, power distribution, thermal management and more. Join us at Cotswold Airport, home to some of our aircraft and the workplace of many ZeroAvians. Located just outside the historic market town of Cirencester, youll experience a .
At ZeroAvia, were clean sky thinkers. For the world to achieve truly clean, guilt-free flight, we need a scalable solution; hydrogen-electric powertrains. As a leader in zero-emission aviation and a UK Jet Zero Council member, were designing and commercialising hydrogen-powered solutions that will positively impact the future of aviation, global connectivity, and the world. Engineering designs our next-generation hydrogen electric engines. Working across Hydrogen, Propulsion and Integration divisions, they solve technical problems and help decarbonize aviation by finding solutions for electric propulsion, hydrogen storage, fuel cell technology, power distribution, thermal management and more. Join us at Cotswold Airport, home to some of our aircraft and the workplace of many ZeroAvians. Located just outside the historic market town of Cirencester, youll experience a .
REST API Development: Proficiency in designing and implementing RESTful APIs using C# and .NET.
REST API Development: Proficiency in designing and implementing RESTful APIs using C# and .NET.
Shopify APIs: Proficiency with Shopify Admin API and Storefront API for data interaction and application functionality. API Integration : Proven ability to integrate with RESTful and GraphQL APIs.
Shopify APIs: Proficiency with Shopify Admin API and Storefront API for data interaction and application functionality. API Integration : Proven ability to integrate with RESTful and GraphQL APIs.
Closing date: 12/08/2025 - 37 hours / Permanent - 37,938 - 39,513 * Canolfan Rheidol, Aberystwyth *All salary values are pro-rata. Apply Online - About the role - Please note that the advertised salary for this position is subject to a pending pay award. The final salary will be adjusted in line with the nationally agreed pay award. Join Our Team as a ICT Senior Data Engineer - We are seeking a highly skilled Data Engineer to join our team. This role focuses on managing and transitioning data from traditional on-premises SQL environments to Azure cloud solutions, with a special emphasis on master data management using MS Azure SQL. The successful candidate will be key in integrating various Management Information System (MIS) databases with Azure master data repositories. Ceredigion County Council is a leading, innovative organisation that are supporting the citizens
Closing date: 12/08/2025 - 37 hours / Permanent - 37,938 - 39,513 * Canolfan Rheidol, Aberystwyth *All salary values are pro-rata. Apply Online - About the role - Please note that the advertised salary for this position is subject to a pending pay award. The final salary will be adjusted in line with the nationally agreed pay award. Join Our Team as a ICT Senior Data Engineer - We are seeking a highly skilled Data Engineer to join our team. This role focuses on managing and transitioning data from traditional on-premises SQL environments to Azure cloud solutions, with a special emphasis on master data management using MS Azure SQL. The successful candidate will be key in integrating various Management Information System (MIS) databases with Azure master data repositories. Ceredigion County Council is a leading, innovative organisation that are supporting the citizens
You understand and care deeply about the developer journey, from first API call to production deployment.
You understand and care deeply about the developer journey, from first API call to production deployment.
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You will bring deep expertise in Okta capabilities, including Okta Customer Identity Cloud (CIC) , Okta Workforce Identity Cloud (WIC) , Single Sign-On, Adaptive Multi-Factor Authentication, API Access Management, Lifecycle Management, and Universal Directory. * Hands-on experience delivering Okta Identity Cloud solutions, including configuration of SSO, Adaptive MFA, API Access Management, and Lifecycle Management. * Proficiency with Okta Hooks (Inline, Event), Okta Workflows , and automation via Okta API , Terraform , or Okta Integration Network .
You will bring deep expertise in Okta capabilities, including Okta Customer Identity Cloud (CIC) , Okta Workforce Identity Cloud (WIC) , Single Sign-On, Adaptive Multi-Factor Authentication, API Access Management, Lifecycle Management, and Universal Directory. * Hands-on experience delivering Okta Identity Cloud solutions, including configuration of SSO, Adaptive MFA, API Access Management, and Lifecycle Management. * Proficiency with Okta Hooks (Inline, Event), Okta Workflows , and automation via Okta API , Terraform , or Okta Integration Network .
Knowledge of RESTful API design and development
Knowledge of RESTful API design and development
Technical Testing of APIs including Authentication & Authorisation, API Requests & Responses and API response codes using tools such as Postman
Technical Testing of APIs including Authentication & Authorisation, API Requests & Responses and API response codes using tools such as Postman
Collaborate with Ops Tech to manage API use, system performance, and platform scalability. * Working knowledge of JavaScript or Python for API interactions for customizations.
Collaborate with Ops Tech to manage API use, system performance, and platform scalability. * Working knowledge of JavaScript or Python for API interactions for customizations.
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Liaise and collaborate with internal stakeholders such as TAs, SMEs and other discipline Engineers to deliver structural engineering services ensuring compliance with industry design standards (ISO, API, DNV, NORSOK, etc.) and certification requirements.
Liaise and collaborate with internal stakeholders such as TAs, SMEs and other discipline Engineers to deliver structural engineering services ensuring compliance with industry design standards (ISO, API, DNV, NORSOK, etc.) and certification requirements.
Familiarity with troubleshooting frontend build systems, serverless runtimes, and API integrations
Familiarity with troubleshooting frontend build systems, serverless runtimes, and API integrations
You'll drive key capabilities like multi-tenancy, RBAC, and API experiences to meet the needs of our largest enterprise customers and MSSP partners. As a Lead Product Manager, your primary responsibility will be to own critical enterprise capabilities including multi-tenancy experiences, user access management (RBAC and data access control), API experiences, and foundational account infrastructure. * Strong understanding of enterprise platform requirements, particularly in multi-tenant environments, role-based access control (RBAC), identity and access management (IAM), and API development.
You'll drive key capabilities like multi-tenancy, RBAC, and API experiences to meet the needs of our largest enterprise customers and MSSP partners. As a Lead Product Manager, your primary responsibility will be to own critical enterprise capabilities including multi-tenancy experiences, user access management (RBAC and data access control), API experiences, and foundational account infrastructure. * Strong understanding of enterprise platform requirements, particularly in multi-tenant environments, role-based access control (RBAC), identity and access management (IAM), and API development.
Desired skills in Azure Integration Services, including Azure Service Bus, Azure Functions, Logic Apps, and API Management, with experience building cloud applications using Azure App Service and be proficient in containerization with Docker would be advantagous. * Design, develop, and maintain Azure-based applications using services such as Azure App Service, Azure Service Bus, Azure Functions, Logic Apps, API Management, Azure Storage, Azure Key Vault, Application Insights and more. * Proficient in C#, .NET, ASP.NET (Core), MVC, Web API, and experience with scripting languages such as PowerShell. * Hands-on experience developing applications with Azure App Service, Azure Storage, Azure Service Bus, Azure Functions, Logic Apps, and API Management.
Desired skills in Azure Integration Services, including Azure Service Bus, Azure Functions, Logic Apps, and API Management, with experience building cloud applications using Azure App Service and be proficient in containerization with Docker would be advantagous. * Design, develop, and maintain Azure-based applications using services such as Azure App Service, Azure Service Bus, Azure Functions, Logic Apps, API Management, Azure Storage, Azure Key Vault, Application Insights and more. * Proficient in C#, .NET, ASP.NET (Core), MVC, Web API, and experience with scripting languages such as PowerShell. * Hands-on experience developing applications with Azure App Service, Azure Storage, Azure Service Bus, Azure Functions, Logic Apps, and API Management.
Related Jobs
Locations
- London
- City of London
- East London
- South East London
- South West London
- Wembley
- West London
- North West London
- South East
- North London
- Essex
- Stoke-On-Trent
- Luton
- Newport, Gwent
- Leicestershire
- Cambridgeshire
- Dundee
- Rugby
- North East
- Cambridge
- Birmingham
- East Anglia
- Middlesbrough
- Worksop
- Leicester
- Bedfordshire
- Nottingham
- Chelmsford