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141 Permanent API jobs in City of London + 20 miles
685 exact matches jobs are outside your preferred location
Implementation of Salesforce Flows to a high standard (e.g. screen flows, triggered flows, API flows)
Implementation of Salesforce Flows to a high standard (e.g. screen flows, triggered flows, API flows)
Delivering security automation (scripting, API integration and via the Power Platform) * Experience of using and configuring API integrations
Delivering security automation (scripting, API integration and via the Power Platform) * Experience of using and configuring API integrations
Strong knowledge in C++ Strong understanding of API design
Strong knowledge in C++ Strong understanding of API design
Python, API frameworks (Flask, FastAPI), package managers (poetry, uv)
Python, API frameworks (Flask, FastAPI), package managers (poetry, uv)
RTDS, Bloomberg API, LSEG EIKON
RTDS, Bloomberg API, LSEG EIKON
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The ideal candidate has prior experience solving complex forms of scaled abuse, building sophisticated protections across multiple parts of OpenAIs product suite (ChatGPT, API, Sora).
The ideal candidate has prior experience solving complex forms of scaled abuse, building sophisticated protections across multiple parts of OpenAIs product suite (ChatGPT, API, Sora).
Hands-on experience with API integration, ensuring seamless connectivity between systems.
Hands-on experience with API integration, ensuring seamless connectivity between systems.
Proficiency in API integrations, webhooks, and JSON/XML data handling
Proficiency in API integrations, webhooks, and JSON/XML data handling
Software Engineering Industrial Placement
Software Engineering Industrial Placement
Cambridge Crystallographic Data Centre
Cambridge, Cambridgeshire
£25,000 - £27,000 a year
During the first month, the student will undergo onboarding and training to become familiar with our CSD Python API product, our development tools and our team practices. Test Automation and API Testing Improvements (October - December 2026) The student will work with the Test Automation engineers to improve the testability and maintainability of our CSD Python API product and scripts using it. * Improving the overall robustness of our CSD Python API and the other dependent products - The focus will be on contributing to the development of new scientific features that will be exposed via our CSD Python API. * Collaborating with other software engineers to integrate new functionalities, written in C++ and Python, into the API The student will develop reporting scripts
During the first month, the student will undergo onboarding and training to become familiar with our CSD Python API product, our development tools and our team practices. Test Automation and API Testing Improvements (October - December 2026) The student will work with the Test Automation engineers to improve the testability and maintainability of our CSD Python API product and scripts using it. * Improving the overall robustness of our CSD Python API and the other dependent products - The focus will be on contributing to the development of new scientific features that will be exposed via our CSD Python API. * Collaborating with other software engineers to integrate new functionalities, written in C++ and Python, into the API The student will develop reporting scripts
Create and maintain API and data integrations between ServiceNow and other services.
Create and maintain API and data integrations between ServiceNow and other services.
Familiarity with zero-trust architectures, hybrid cloud security, and API security
Familiarity with zero-trust architectures, hybrid cloud security, and API security
Help drive decisions on API design, synchronous vs. asynchronous processing, consistency models, and service boundaries for the broader platform. * AWS Cloud Expertise: Deep architectural knowledge of the AWS ecosystem, such as Lambda, API Gateway, S3, DynamoDB, IAM, and container orchestration (EKS/ECS).
Help drive decisions on API design, synchronous vs. asynchronous processing, consistency models, and service boundaries for the broader platform. * AWS Cloud Expertise: Deep architectural knowledge of the AWS ecosystem, such as Lambda, API Gateway, S3, DynamoDB, IAM, and container orchestration (EKS/ECS).
This role is part of our Digital Platform Services team, who are responsible for delivering central services to the divisions in an API first way by utilising AI and new ways of working.
This role is part of our Digital Platform Services team, who are responsible for delivering central services to the divisions in an API first way by utilising AI and new ways of working.
Understanding of API and backend services development in .Net
Understanding of API and backend services development in .Net
Have experience with accessing API's and handling their responses;
Have experience with accessing API's and handling their responses;
Platform Innovation : Oversee the full lifecycle of feature development, from ideation to deployment, leveraging modern tech stacks to enhance platform capabilities, such as real-time data processing and API integrations.
Platform Innovation : Oversee the full lifecycle of feature development, from ideation to deployment, leveraging modern tech stacks to enhance platform capabilities, such as real-time data processing and API integrations.
Experience with RPA/workflow tools and API integrations; comfort with vendor evaluation and contracting, balancing build vs. buy.
Experience with RPA/workflow tools and API integrations; comfort with vendor evaluation and contracting, balancing build vs. buy.
Experience working with engineering teams on web, mobile app, and backend/API projects.
Experience working with engineering teams on web, mobile app, and backend/API projects.
Experience working with engineering teams on web, mobile app, and backend/API projects.
Experience working with engineering teams on web, mobile app, and backend/API projects.
Experience in testing applications across different platforms (e.g., web, desktop, mobile, API).
Experience in testing applications across different platforms (e.g., web, desktop, mobile, API).
API Development: Experience building and deploying scalable and secure API services using a framework like FastAPI, Flask, or similar.
API Development: Experience building and deploying scalable and secure API services using a framework like FastAPI, Flask, or similar.
Strong understanding of UI, API, and integration testing approaches, with the ability to choose the right tools and techniques for the problem.
Strong understanding of UI, API, and integration testing approaches, with the ability to choose the right tools and techniques for the problem.
Perform hands-on implementation with the ServiceNow platform, leveraging all ServiceNow technologies and capabilities: Workflow Studio/ Flow Designer, JavaScript, REST/SOAP API integrations (incl. MID Servers), Single Sign-On and more
Perform hands-on implementation with the ServiceNow platform, leveraging all ServiceNow technologies and capabilities: Workflow Studio/ Flow Designer, JavaScript, REST/SOAP API integrations (incl. MID Servers), Single Sign-On and more
Bring thoughtful design practices to API development including versioning, authentication, and security * Have strong opinions on effective API design and data structure, but are open to evolving them * A solid understanding of API design principles including auth, scalability and security
Bring thoughtful design practices to API development including versioning, authentication, and security * Have strong opinions on effective API design and data structure, but are open to evolving them * A solid understanding of API design principles including auth, scalability and security
Job title: Machine Learning Engineer - Tech Lead - Location: London, Bristol, Edinburgh - Salary: £72,000 - £85,250 - Reporting to: Head of Data Science & Products - Kaluza is the Energy Intelligence Platform, turning energy complexity into seamless coordination. We help energy companies overcome today's challenges while accelerating the shift to a clean, electrified future. Our platform orchestrates millions of real-time decisions across homes, devices, markets and grids. By combining predictive algorithms with human-centred design, Kaluza makes clean energy dependable, affordable and adaptive to everyday life. With teams across Europe, North America, Asia and Australia, and a joint venture with Mitsubishi Corporation in Japan, we power leading companies including OVO, AGL and ENGIE, as well as innovators like Volvo and Volkswagen.
Job title: Machine Learning Engineer - Tech Lead - Location: London, Bristol, Edinburgh - Salary: £72,000 - £85,250 - Reporting to: Head of Data Science & Products - Kaluza is the Energy Intelligence Platform, turning energy complexity into seamless coordination. We help energy companies overcome today's challenges while accelerating the shift to a clean, electrified future. Our platform orchestrates millions of real-time decisions across homes, devices, markets and grids. By combining predictive algorithms with human-centred design, Kaluza makes clean energy dependable, affordable and adaptive to everyday life. With teams across Europe, North America, Asia and Australia, and a joint venture with Mitsubishi Corporation in Japan, we power leading companies including OVO, AGL and ENGIE, as well as innovators like Volvo and Volkswagen.
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Locations
- London
- Central London
- East London
- West London
- South East London
- West End
- Moorgate, City of London
- North London
- Euston, North West London
- North West London
- Cambridge
- Yorkshire
- Birmingham
- Milton Keynes
- Leeds
- Southampton
- Lancashire
- Glasgow
- Midlands
- South East
- Manchester
- Derby
- Essex
- Wales
- Scotland
- East Midlands
- North East
- Cardiff
- Surrey
- Watford
- Hertfordshire
- Plymouth
- Leicestershire
- Reading
- South West London
- Bristol
- Newcastle Upon Tyne
- Sheffield
- Coventry
- East Anglia
- West Yorkshire
- Midlothian
- Chester
- Cambridgeshire
- Harrow
- Hampshire
- Ipswich
- Belfast
- Staffordshire
- Nottinghamshire