Date posted
Commute time
Locations
Type of Company
Job types
Salaries
Locations
Locations
Salaries
Date posted
Type of Company
Job types
Locations
- The City, City (EC2)
- Shoreditch
- The City, City (EC3)
- Charing Cross
- Piccadilly
- The City, City (EC4)
- Tovil
- Canary Wharf
- Gilwell Park
- Marefield
- City of London
- Cambridge
- Central London
- West End
- Reading
- East London
- Milton Keynes
- Bracknell
- Harlow
- South East London
- London
- Cambridgeshire
- Berkshire
- Buckinghamshire
- Hertfordshire
- Kent
- Hampshire
- Oxfordshire
- Surrey
- West Sussex
- South East
- East Anglia
73 Permanent API jobs in South East London + 20 miles
)
Technical Product Manager API SaaS
Technical Product Manager API SaaS
Client Server
Shoreditch, East London (E1), EC2A
£95000 - £120000 per annum + benefits
You'll be embedded within delivery teams, UX and engineering and utilise your knowledge of software development to make trade-offs, steward the delivery process and close the gaps in requirements including producing technical documentation along with wireframes and API scaffolding where appropriate. Apply now to find out more about this Technical Product Manager (API SaaS) opportunity.
You'll be embedded within delivery teams, UX and engineering and utilise your knowledge of software development to make trade-offs, steward the delivery process and close the gaps in requirements including producing technical documentation along with wireframes and API scaffolding where appropriate. Apply now to find out more about this Technical Product Manager (API SaaS) opportunity.
PREMIUM
C# Developer .Net SQL API
C# Developer .Net SQL API
Client Server
The City, City of London (EC4), EC4R
£75000 - £90000 per annum + benefits
C# Developer / Software Engineer (C# .Net SQL API) London onsite to £90k - There's a focus on backend and API development although you'll also have elements of front end work with JavaScript and React.js. Apply now to find out more about this C# Developer / Software Engineer (C# .Net SQL API) opportunity.
C# Developer / Software Engineer (C# .Net SQL API) London onsite to £90k - There's a focus on backend and API development although you'll also have elements of front end work with JavaScript and React.js. Apply now to find out more about this C# Developer / Software Engineer (C# .Net SQL API) opportunity.
PREMIUM
)
Solution Architect
Solution Architect
I3 Resourcing Limited
The City, City of London (EC3), EC3V 3ND
£100000 - £120000 per annum + + bonus + benefits
Experience with API-led, microservices, and integration architectures
Experience with API-led, microservices, and integration architectures
)
Senior Product Engineer, Full Stack - Energy
Senior Product Engineer, Full Stack - Energy
MFK Recruitment Ltd
Piccadilly, Central London (W1), W1S 4NS
From £70,000 to £95,000 per annum
£70,000 to £95,000 - Permanent - London, hybrid - The opportunity - Our client is hiring a Senior Product Engineer, Full Stack, to help build the next generation of customer-facing software in the energy market. Operating in a complex, high-value sector, the business is combining technology, data, and product thinking to modernise an area of the energy industry that has historically been underserved by great software. We have already placed 3 people into the business and are pleased to be supporting them again on this important hire. This is a genuinely exciting opportunity for a frontend-strong engineer who wants real ownership, autonomy, and the chance to build products from scratch. They are looking for someone with strong React and TypeScript capability, alongside solid backend exposure across Python, APIs, and databases.
£70,000 to £95,000 - Permanent - London, hybrid - The opportunity - Our client is hiring a Senior Product Engineer, Full Stack, to help build the next generation of customer-facing software in the energy market. Operating in a complex, high-value sector, the business is combining technology, data, and product thinking to modernise an area of the energy industry that has historically been underserved by great software. We have already placed 3 people into the business and are pleased to be supporting them again on this important hire. This is a genuinely exciting opportunity for a frontend-strong engineer who wants real ownership, autonomy, and the chance to build products from scratch. They are looking for someone with strong React and TypeScript capability, alongside solid backend exposure across Python, APIs, and databases.
)
Senior Data Scientist - 12 Month FTC
Senior Data Scientist - 12 Month FTC
Vitality Corporate Services Limited
Charing Cross, Central London (WC2), WC2R
£Competitive + Bonus + Benefits
Strong understanding of API development, microservices, and containerization (Docker, Kubernetes)
Strong understanding of API development, microservices, and containerization (Docker, Kubernetes)
PREMIUM
)
Solutions Architect
Solutions Architect
MARSH CORPORATE SERVICES LIMITED
City of London (EC1)
Pension, Healthcare, Life Insurance and much more
Deep fluency in London Market placing platforms and integration patterns (Whitespace, PPL, API ecosystem).
Deep fluency in London Market placing platforms and integration patterns (Whitespace, PPL, API ecosystem).
PREMIUM
)
Solutions Architect
Solutions Architect
Solus Accident Repair Centres
North London, London
GBP £50,000.00/Yr. - GBP £65,000.00/Yr.
Deep knowledge of modern enterprise patterns, SaaS adoption, API and event based integrations and resilience approaches.
Deep knowledge of modern enterprise patterns, SaaS adoption, API and event based integrations and resilience approaches.
)
• Skill in API design and security in API management ecosystem
• Skill in API design and security in API management ecosystem
PREMIUM
Full Stack Engineer - Equity
Full Stack Engineer - Equity
Dental startup
Central London (W1)
Up to £60,000 per annum Equity - Founding Engineer
You'll own the full stack database architecture, API layer, and front-end, and you'll work directly with the founder on every major decision. * Architect and build the core platform from scratch schema, API, and front-end * Strong Node.js REST API development, authentication, middleware * Third-party API and webhook integration experience
You'll own the full stack database architecture, API layer, and front-end, and you'll work directly with the founder on every major decision. * Architect and build the core platform from scratch schema, API, and front-end * Strong Node.js REST API development, authentication, middleware * Third-party API and webhook integration experience
Senior Software Developer
Senior Software Developer
Tech 4
East London (E10)
From £68,000 to £70,000 per annum + excellent benefits
Assist with the design, implementation, and testing of APIs that adhere to the Open API specification
Assist with the design, implementation, and testing of APIs that adhere to the Open API specification
)
AboutTheRole - WerelookingformultipleLeadTechnicalArchitectswhowillplayacentralroleinthesuccessfuldeliveryoftechnologyprojects. Youwillworkcloselywithclientsandinternalteamstounderstandcontext,co-designsolutions,andleadtechnicalteamsthroughproductdevelopment. Inthisrole,youwillleadarchitectureworkonclientprogrammes. Youwilldesignandoverseeend-to-endtechnologysolutionsthatarescalable,secure,user-centred,andethicallyresponsible. Thisroleinvolvestranslatingbusinessneedsintotechnologysolutions,creatingarchitectureartefacts,andsupportingclientstomakesustainableanduser-focusedtechnologychoices. Youmightbeaspecialistinaparticulartechnologydomainorplatform-suchaslegacysystemmigration,m365,Azure,GCP,AWS,dataplatformsorintelligentprocessautomation-butyouwillapplyatechnologyagnosticperspective. You'lloperateasatrustedadvisor,oftenleadingsmallerengagementsorplayingaseniorroleonlargerones,butmayalsoworksoloorcontributeasamemberofateamasneeded.
AboutTheRole - WerelookingformultipleLeadTechnicalArchitectswhowillplayacentralroleinthesuccessfuldeliveryoftechnologyprojects. Youwillworkcloselywithclientsandinternalteamstounderstandcontext,co-designsolutions,andleadtechnicalteamsthroughproductdevelopment. Inthisrole,youwillleadarchitectureworkonclientprogrammes. Youwilldesignandoverseeend-to-endtechnologysolutionsthatarescalable,secure,user-centred,andethicallyresponsible. Thisroleinvolvestranslatingbusinessneedsintotechnologysolutions,creatingarchitectureartefacts,andsupportingclientstomakesustainableanduser-focusedtechnologychoices. Youmightbeaspecialistinaparticulartechnologydomainorplatform-suchaslegacysystemmigration,m365,Azure,GCP,AWS,dataplatformsorintelligentprocessautomation-butyouwillapplyatechnologyagnosticperspective. You'lloperateasatrustedadvisor,oftenleadingsmallerengagementsorplayingaseniorroleonlargerones,butmayalsoworksoloorcontributeasamemberofateamasneeded.
PREMIUM
)
SC Java Developer
SC Java Developer
Sanderson Government and Defence
South East London (SE1), SE1
£40000 - £60000 per annum
Expect to contribute to API development, containerised applications, and cross-functional engineering initiatives.
Expect to contribute to API development, containerised applications, and cross-functional engineering initiatives.
NEWFEATURED
)
Tester/ Full Stack Quality Engineer - Katalon, Hybrid - London
Tester/ Full Stack Quality Engineer - Katalon, Hybrid - London
Sanderson Recruitment
City of London (EC1), EC1
£35000 - £75000 per annum + bonus scheme
Supporting a shift-left approach, improving collaboration with developers, and helping move testing beyond UI into stronger API and upstream quality practices.
Supporting a shift-left approach, improving collaboration with developers, and helping move testing beyond UI into stronger API and upstream quality practices.
FEATURED
)
Test newly developed features and perform regression testing of our casino products, including API as well as sportsbook and CMS-related functionality Improve/refactor the testing automation framework - Perform API testing using Java/RestAssured - Hands on experience of API testing
Test newly developed features and perform regression testing of our casino products, including API as well as sportsbook and CMS-related functionality Improve/refactor the testing automation framework - Perform API testing using Java/RestAssured - Hands on experience of API testing
)
Automation Test Engineer
Automation Test Engineer
Data Careers
Southwark, South East London (SE1), SE1
£55000 - £75000 per annum
Skills: Integration Testing, API Testing, SQL, BDD (Gherkin / SpecFlow), Test Automation * Support API and integration testing across distributed systems * API testing expertise
Skills: Integration Testing, API Testing, SQL, BDD (Gherkin / SpecFlow), Test Automation * Support API and integration testing across distributed systems * API testing expertise
)
T24 Developer - Transact
T24 Developer - Transact
Hireful
Central London, London
66K Basic + 12.5% Pension + Bonus (typical 25%, performance based) + 2
Experience participating in T24 upgrade and integration projects (including API integrations).
Experience participating in T24 upgrade and integration projects (including API integrations).
FEATURED
)
Working knowledge of SQL, JSON, or API troubleshooting
Working knowledge of SQL, JSON, or API troubleshooting
FEATURED
)
Experience withAzure (APIM, Azure Functions, API Services), React/React-Native and.NET Core - Proficiency in at least one major API testing framework - Experience with API testing (REST, Postman)
Experience withAzure (APIM, Azure Functions, API Services), React/React-Native and.NET Core - Proficiency in at least one major API testing framework - Experience with API testing (REST, Postman)
)
API and application security: threat modelling (STRIDE/PASTA), OAuth 2.0/OIDC implementation review, secrets management (Key Vault, HashiCorp Vault), and secure SDLC integration
API and application security: threat modelling (STRIDE/PASTA), OAuth 2.0/OIDC implementation review, secrets management (Key Vault, HashiCorp Vault), and secure SDLC integration
)
Experience with Azure API Management or similar API gateways.
Experience with Azure API Management or similar API gateways.
PREMIUM
)
Experience with API management tools such as Apigee, API Gateway, or API Endpoints.
Experience with API management tools such as Apigee, API Gateway, or API Endpoints.
)
Forward Deployed AI Engineer
Forward Deployed AI Engineer
Richard Wheeler Associates
Central London (W1)
From £115,000 to £175,000 per annum + performance bonus
Robust API integration experience, including working with third-party datasets, web APIs, or scrapers
Robust API integration experience, including working with third-party datasets, web APIs, or scrapers
Are you a technical visionary ready to shape the future of global commerce? We are partnering with a world-leading family of iconic activewear and footwear brands to find a Digital Commerce Architect. This is a pivotal role owning the architectural evolution of a Shopify-led ecosystem across B2B and D2C. You will act as the technical authority, managing a diverse digital backlog and governing a multi-vendor environment to deliver scalable, secure, and future-ready solutions. The Requirements * Proven experience as a Digital or Commerce Architect in B2B/D2C. * Deep expertise in Shopify architecture and the supporting app estate. * Strong understanding of MACH, headless, and composable commerce. * Expertise in managing third-party integrators and APIs (SAP, PIM, CRM). * Leadership skills to mentor engineers and influence senior stakeholders. The Benefits
Are you a technical visionary ready to shape the future of global commerce? We are partnering with a world-leading family of iconic activewear and footwear brands to find a Digital Commerce Architect. This is a pivotal role owning the architectural evolution of a Shopify-led ecosystem across B2B and D2C. You will act as the technical authority, managing a diverse digital backlog and governing a multi-vendor environment to deliver scalable, secure, and future-ready solutions. The Requirements * Proven experience as a Digital or Commerce Architect in B2B/D2C. * Deep expertise in Shopify architecture and the supporting app estate. * Strong understanding of MACH, headless, and composable commerce. * Expertise in managing third-party integrators and APIs (SAP, PIM, CRM). * Leadership skills to mentor engineers and influence senior stakeholders. The Benefits
Contract: Permanent, Full-time - Title:D365 Solution Architect - Location:London (Hybrid - 60% in office) Salary:£80,000 - £105,000 + Bonus - This role requires, or the ability to gain, SC Clearance. About the client - My client is a business transformation consultancy, operating as a cohesive unit to pioneer innovation on a scale unparalleled by any other company. With a diverse range of expertise, they possess the unique capability to shepherd ideas from their inception, through meticulous design and development phases, all the way to triumphant commercialisation. Beyond mere product development, they breathe new life into organisations by instilling innovative leadership, fostering dynamic cultures, and optimising systems and processes. Central to their success are their exceptional individuals who embody their purpose with unwavering dedication each day, ensuring that impactful ...
Contract: Permanent, Full-time - Title:D365 Solution Architect - Location:London (Hybrid - 60% in office) Salary:£80,000 - £105,000 + Bonus - This role requires, or the ability to gain, SC Clearance. About the client - My client is a business transformation consultancy, operating as a cohesive unit to pioneer innovation on a scale unparalleled by any other company. With a diverse range of expertise, they possess the unique capability to shepherd ideas from their inception, through meticulous design and development phases, all the way to triumphant commercialisation. Beyond mere product development, they breathe new life into organisations by instilling innovative leadership, fostering dynamic cultures, and optimising systems and processes. Central to their success are their exceptional individuals who embody their purpose with unwavering dedication each day, ensuring that impactful ...
)
Principal Test Engineer
Principal Test Engineer
Vitality Corporate Services Limited - Tech
Charing Cross, Central London (WC2), WC2R
£Competitive + Bonus + Benefits
Strong hands-on experience in API test automation, including scenario design, data setup, and validation.
Strong hands-on experience in API test automation, including scenario design, data setup, and validation.
PREMIUM
Related Jobs
Locations
- The City, City (EC2)
- Shoreditch
- The City, City (EC3)
- Charing Cross
- Piccadilly
- The City, City (EC4)
- Tovil
- Canary Wharf
- Gilwell Park
- Marefield
- City of London
- Cambridge
- Central London
- West End
- Reading
- East London
- Milton Keynes
- Bracknell
- Harlow
- South East London
- London
- Cambridgeshire
- Berkshire
- Buckinghamshire
- Hertfordshire
- Kent
- Hampshire
- Oxfordshire
- Surrey
- West Sussex
- South East
- East Anglia