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89 API jobs in West Fields, South West London + 20 miles
Writing (looking for experience with Scala, JavaScript, Java or any ideally procedural programming or alternatively object-orientated language), running and debugging functional automation tests on an integrated development environment (IDE) for front-end and API testing and frameworks including Cucumber BDD or Junit or Rest Assured
Writing (looking for experience with Scala, JavaScript, Java or any ideally procedural programming or alternatively object-orientated language), running and debugging functional automation tests on an integrated development environment (IDE) for front-end and API testing and frameworks including Cucumber BDD or Junit or Rest Assured
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Our tech stack and methodologies: C# .NET (8+), Terraform, Typescript - Services: Rest API; Event-driven, Microservice, Serverless architecture - Principles: TDD, Agile, Pair Programming - CI/CD: Git, Docker, Bamboo - Cloud: AWS, Lambda, ECS - Databases/Storage: Postgres , Dynamo, DocumentDb, OpenSearch/Elastic, Redis - Monitoring: Cloudwatch, Kibana, Grafana, DataDog
Our tech stack and methodologies: C# .NET (8+), Terraform, Typescript - Services: Rest API; Event-driven, Microservice, Serverless architecture - Principles: TDD, Agile, Pair Programming - CI/CD: Git, Docker, Bamboo - Cloud: AWS, Lambda, ECS - Databases/Storage: Postgres , Dynamo, DocumentDb, OpenSearch/Elastic, Redis - Monitoring: Cloudwatch, Kibana, Grafana, DataDog
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Youll work across Camunda BPMN/DMN process automation, API integration, and microservice orchestration helping their public-sector clients build secure, scalable, and resilient digital services. Profile 29 recruitment keywords: Java software engineer object-oriented design OOD Camunda BPMN DMN Spring Boot REST API microservice architecture Docker Kubernetes containerisation orchestration Git CI/CD pipelines automated testing frameworks Kafka RabbitMQ Security authentication integration patterns enterprise systems agile digital transformation automation Java developer Camunda developer Zeebe Cloud AWS Azure GCP Terraform Helm process automation agentic AI artificial intelligence security clearance SC DV eDV London home based hybrid
Youll work across Camunda BPMN/DMN process automation, API integration, and microservice orchestration helping their public-sector clients build secure, scalable, and resilient digital services. Profile 29 recruitment keywords: Java software engineer object-oriented design OOD Camunda BPMN DMN Spring Boot REST API microservice architecture Docker Kubernetes containerisation orchestration Git CI/CD pipelines automated testing frameworks Kafka RabbitMQ Security authentication integration patterns enterprise systems agile digital transformation automation Java developer Camunda developer Zeebe Cloud AWS Azure GCP Terraform Helm process automation agentic AI artificial intelligence security clearance SC DV eDV London home based hybrid
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Staff Back End Engineer
Staff Back End Engineer
John Lewis Head Office
SW1V, South West London, SW1V 2QQ
Up to £94,200 per annum
REST API development and/or consumption.
REST API development and/or consumption.
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Most functionality is written by the API or integrations team but we need a strong developer that can do both.
Most functionality is written by the API or integrations team but we need a strong developer that can do both.
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Principal Software Engineer - Unified Client Experience (UCX)
Principal Software Engineer - Unified Client Experience (UCX)
Hargreaves Lansdown
EC1, City of London
Up to £11500 per annum + Generous bonus, pension, PMI & more
Solid experience in building and deploying frontend applications in React or React Native with hands-on knowledge of secure API design and authentication services.
Solid experience in building and deploying frontend applications in React or React Native with hands-on knowledge of secure API design and authentication services.
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Senior Software Engineer - Unified Client Experience (UCX)
Senior Software Engineer - Unified Client Experience (UCX)
Hargreaves Lansdown
EC1, City of London
£75000 - £95000 per annum + Generous bonus, pension, PMI & more
Solid experience in building and deploying frontend applications in React or React Native with hands-on knowledge of secure API design and authentication services.
Solid experience in building and deploying frontend applications in React or React Native with hands-on knowledge of secure API design and authentication services.
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Senior Android Engineer
Senior Android Engineer
John Lewis Head Office
SW1V, South West London, SW1V 2QQ
From £48,500 to £74,000 per annum
REST API development and/or consumption
REST API development and/or consumption
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Strong background in test automation ((Playwright, Appium, API,etc.)
Strong background in test automation ((Playwright, Appium, API,etc.)
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Your Opportunity: Based in our Enfield office with a hybrid working model, youll join the Global Customer Satisfaction department as a Technical Support Specialist. If youre passionate about providing outstanding customer support, building strong client relationships, and enjoy working in a fast-paced, technology-focused environment, this is the role for you! Were seeking a dedicated French-speaking Technical Support Specialist to assist customers using EBSCO software solutions and help ensure their success. * Troubleshoot and resolve product-related issues * Guide clients through installation, configuration, and upgrades * Monitor customer casework and ensure timely resolution * Conduct proactive service meetings and communicate updates * Advocate for customer needs across internal teams * Deliver internal training and maintain support documentation
Your Opportunity: Based in our Enfield office with a hybrid working model, youll join the Global Customer Satisfaction department as a Technical Support Specialist. If youre passionate about providing outstanding customer support, building strong client relationships, and enjoy working in a fast-paced, technology-focused environment, this is the role for you! Were seeking a dedicated French-speaking Technical Support Specialist to assist customers using EBSCO software solutions and help ensure their success. * Troubleshoot and resolve product-related issues * Guide clients through installation, configuration, and upgrades * Monitor customer casework and ensure timely resolution * Conduct proactive service meetings and communicate updates * Advocate for customer needs across internal teams * Deliver internal training and maintain support documentation
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Company Overview - At Motorola Solutions, we believe that everything starts with our people. Were a global close-knit community, united by the relentless pursuit to help keep people safer everywhere. Our critical communications, video security and command center technologies support public safety agencies and enterprises alike, enabling the coordination thats critical for safer communities, safer schools, safer hospitals and safer businesses. Connect with a career that matters, and help us build a safer future. Department Overview - The Senior Software Security Engineer will be responsible for analysing software designs and implementations from a security perspective, identifying and proposing remediations to security issues throughout the software development lifecycle (SDLC). Job Description - This role is primarily hybrid, with occasional travel to our UK offices,
Company Overview - At Motorola Solutions, we believe that everything starts with our people. Were a global close-knit community, united by the relentless pursuit to help keep people safer everywhere. Our critical communications, video security and command center technologies support public safety agencies and enterprises alike, enabling the coordination thats critical for safer communities, safer schools, safer hospitals and safer businesses. Connect with a career that matters, and help us build a safer future. Department Overview - The Senior Software Security Engineer will be responsible for analysing software designs and implementations from a security perspective, identifying and proposing remediations to security issues throughout the software development lifecycle (SDLC). Job Description - This role is primarily hybrid, with occasional travel to our UK offices,
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At Moody's, we unite the brightest minds to turn todays risks into tomorrows opportunities. We do this by striving to create an inclusive environment where everyone feels welcome to be who they arewith the freedom to exchange ideas, think innovatively, and listen to each other and customers in meaningful ways. Moodys is transforming how the world sees risk. As a global leader in ratings and integrated risk assessment, were advancing AI to move from insight to actionenabling intelligence that not only understands complexity but responds to it. We decode risk to unlock opportunity, helping our clients navigate uncertainty with clarity, speed, and confidence. If you are excited about this opportunity but do not meet every single requirement, please apply! You still may be a great fit for this role or other open roles.
At Moody's, we unite the brightest minds to turn todays risks into tomorrows opportunities. We do this by striving to create an inclusive environment where everyone feels welcome to be who they arewith the freedom to exchange ideas, think innovatively, and listen to each other and customers in meaningful ways. Moodys is transforming how the world sees risk. As a global leader in ratings and integrated risk assessment, were advancing AI to move from insight to actionenabling intelligence that not only understands complexity but responds to it. We decode risk to unlock opportunity, helping our clients navigate uncertainty with clarity, speed, and confidence. If you are excited about this opportunity but do not meet every single requirement, please apply! You still may be a great fit for this role or other open roles.
Over the past 25 years, With Intelligence has evolved from a traditional financial publisher into a dynamic, product-led fintech company. Our mission is to empower investors and managers worldwide by connecting them to the people and data they need to raise and allocate assets efficiently. Were entering an exciting new phase of growth. This funding will accelerate our transformation into a pioneering, data-led platform, one that puts information, automation, and insight at its core. Were now expanding our data capabilities to meet the growing demands of a fast-paced, data-driven organisation. This role is a great opportunity for someone whos eager to make an impact, get hands-on with modern tools, and help shape how we use data across our products and teams. What Youll Do * Design, develop, and maintain scalable data architectures and ETL pipelines
Over the past 25 years, With Intelligence has evolved from a traditional financial publisher into a dynamic, product-led fintech company. Our mission is to empower investors and managers worldwide by connecting them to the people and data they need to raise and allocate assets efficiently. Were entering an exciting new phase of growth. This funding will accelerate our transformation into a pioneering, data-led platform, one that puts information, automation, and insight at its core. Were now expanding our data capabilities to meet the growing demands of a fast-paced, data-driven organisation. This role is a great opportunity for someone whos eager to make an impact, get hands-on with modern tools, and help shape how we use data across our products and teams. What Youll Do * Design, develop, and maintain scalable data architectures and ETL pipelines
Full time - Experienced (relevant combo of work and education) Bachelor of Computer Science - Are you curious, motivated, and forward-thinking? At FIS youll have the opportunity to work on some of the most challenging and relevant issues in financial services and technology. Our talented people empower us, and we believe in being part of a team that is open, collaborative, entrepreneurial, passionate and above all fun. Youll join a dynamic, cross-functional team of engineers, analysts, and product experts focused on delivering high-performance financial solutions. Our teams operate in agile environments, embracing DevOps practices, continuous integration, and cloud-native architectures to accelerate delivery and maximize impact. What you will be doing * Designing and developing robust, scalable program logic for new applications and enhancing existing systems.
Full time - Experienced (relevant combo of work and education) Bachelor of Computer Science - Are you curious, motivated, and forward-thinking? At FIS youll have the opportunity to work on some of the most challenging and relevant issues in financial services and technology. Our talented people empower us, and we believe in being part of a team that is open, collaborative, entrepreneurial, passionate and above all fun. Youll join a dynamic, cross-functional team of engineers, analysts, and product experts focused on delivering high-performance financial solutions. Our teams operate in agile environments, embracing DevOps practices, continuous integration, and cloud-native architectures to accelerate delivery and maximize impact. What you will be doing * Designing and developing robust, scalable program logic for new applications and enhancing existing systems.
226 exact matches jobs are outside your preferred location
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Senior API Technical Consultant (GraphQL Specialist)
Senior API Technical Consultant (GraphQL Specialist)
Staffworx Limited
London
market rates, outside IR35, 2 days on site
Lead the designand evolution of our API schemas, ensuring they meet the complex demands of a rapidly growing platform. * Expert levelGraphQL, including advanced API design, schema evolution, performance optimisation.
Lead the designand evolution of our API schemas, ensuring they meet the complex demands of a rapidly growing platform. * Expert levelGraphQL, including advanced API design, schema evolution, performance optimisation.
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We are AMS. We are a global total workforce solutions firm; we enable organisations to thrive in an age of constant change by building, re-shaping, and optimising workforces. Our Contingent Workforce Solutions (CWS) is one of our service offerings; we act as an extension of our clients' recruitment team and provide professional interim and temporary resources. Our client, a major UK retail bank, provides every day banking services to over 17 million retail customers. The banks expertise and services span across Business Services, Corporate banking, Wealth Management, Group Functions, Retail and Investment Banking. On behalf of this organisation, AMS are looking for a Software Engineer (AI Prompts) for a 6 month contract based in either the bank's London or Edinburgh office on a remote first working model.
We are AMS. We are a global total workforce solutions firm; we enable organisations to thrive in an age of constant change by building, re-shaping, and optimising workforces. Our Contingent Workforce Solutions (CWS) is one of our service offerings; we act as an extension of our clients' recruitment team and provide professional interim and temporary resources. Our client, a major UK retail bank, provides every day banking services to over 17 million retail customers. The banks expertise and services span across Business Services, Corporate banking, Wealth Management, Group Functions, Retail and Investment Banking. On behalf of this organisation, AMS are looking for a Software Engineer (AI Prompts) for a 6 month contract based in either the bank's London or Edinburgh office on a remote first working model.
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Job Description - UK CITIZENSHIP REQUIRED FOR THIS POSITION: Yes - RELOCATION ASSISTANCE: Relocation assistance may be available - CLEARANCE TYPE: UK-Highest Level of Government Clearance - TRAVEL: Yes, 10% of the Time - Salary: £77,400 - £116,000 - Define Possible at Northrop Grumman UK - At Northrop Grumman UK, our mission is to solve the most complex challenges by shaping the technology and solutions of tomorrow. We call it Defining Possible. This mind-set goes beyond our customer solutions; its the foundation for your career development and the impact we have within the community. So, whats your possible? This is more than just a job; its a mission. We are seeking an experienced Elasticsearch Platforms Engineer to join our Data Platforms Infrastructure team. This role is pivotal in supporting and maintaining our Elastic Cloud Enterprise (ECE) environment, designin
Job Description - UK CITIZENSHIP REQUIRED FOR THIS POSITION: Yes - RELOCATION ASSISTANCE: Relocation assistance may be available - CLEARANCE TYPE: UK-Highest Level of Government Clearance - TRAVEL: Yes, 10% of the Time - Salary: £77,400 - £116,000 - Define Possible at Northrop Grumman UK - At Northrop Grumman UK, our mission is to solve the most complex challenges by shaping the technology and solutions of tomorrow. We call it Defining Possible. This mind-set goes beyond our customer solutions; its the foundation for your career development and the impact we have within the community. So, whats your possible? This is more than just a job; its a mission. We are seeking an experienced Elasticsearch Platforms Engineer to join our Data Platforms Infrastructure team. This role is pivotal in supporting and maintaining our Elastic Cloud Enterprise (ECE) environment, designin
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Are you a C++ Software Developer? Do you have a minimum of 12 months commercial experience? If yes, then read on, and let us tell you why Synertec is adding real value into the Public and Commercial Sectors. Location: Wellington, Somerset OR Bristol, OR Milton Keynes - Salary: £40,196.18 - £51,680.11 DOE - Core Benefits: Hybrid Working Policy (2 days maximum in office), 25 days holiday rising to 30 (plus Bank Holidays), Company Pension Scheme (8% employer contribution) Health Cash Plan (after completion of Probationary Period) Embark on your journey with confidence through our Comprehensive Induction and Training Program. We invest in your professional development from day one, providing the tools and knowledge to excel in your role. Join us and experience a workplace that values your individuality and prioritises your well-being.
Are you a C++ Software Developer? Do you have a minimum of 12 months commercial experience? If yes, then read on, and let us tell you why Synertec is adding real value into the Public and Commercial Sectors. Location: Wellington, Somerset OR Bristol, OR Milton Keynes - Salary: £40,196.18 - £51,680.11 DOE - Core Benefits: Hybrid Working Policy (2 days maximum in office), 25 days holiday rising to 30 (plus Bank Holidays), Company Pension Scheme (8% employer contribution) Health Cash Plan (after completion of Probationary Period) Embark on your journey with confidence through our Comprehensive Induction and Training Program. We invest in your professional development from day one, providing the tools and knowledge to excel in your role. Join us and experience a workplace that values your individuality and prioritises your well-being.
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We have partnered with a successful SaaS company based in Milton Keynes which are currently experiencing rapid growth and are partnering with major clients within their industry. They now have an exciting opportunity for a Software Developer skilled across the Microsoft Tech Stack - .NET Core, C#, ASP.NET, SQL, and Azure. The successful candidate will be working across the whole SDLC from inception through to design, implementation and deployment of their SaaS platform. This role is mostly onsite so candidates must be willing to travel to Milton Keynes a minimum of four days a week. * .NET Framework - C# .NET, .NET Core, ASP.NET Core * Entity Framework Core * Azure Cloud - Azure DevOps * JavaScript * RESTful APIs / Web APIs * Git - Benefits Package * Competitive Salary (DOE) * Flexi-hours * Private healthcare * Company car scheme * Social events and Company days out
We have partnered with a successful SaaS company based in Milton Keynes which are currently experiencing rapid growth and are partnering with major clients within their industry. They now have an exciting opportunity for a Software Developer skilled across the Microsoft Tech Stack - .NET Core, C#, ASP.NET, SQL, and Azure. The successful candidate will be working across the whole SDLC from inception through to design, implementation and deployment of their SaaS platform. This role is mostly onsite so candidates must be willing to travel to Milton Keynes a minimum of four days a week. * .NET Framework - C# .NET, .NET Core, ASP.NET Core * Entity Framework Core * Azure Cloud - Azure DevOps * JavaScript * RESTful APIs / Web APIs * Git - Benefits Package * Competitive Salary (DOE) * Flexi-hours * Private healthcare * Company car scheme * Social events and Company days out
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Network Telecom Transformation Architect (Fixed, Telecom, Enterprise, Cloud)
Network Telecom Transformation Architect (Fixed, Telecom, Enterprise, Cloud)
Syntax Consultancy Ltd
West Fields, RG14
£450 - £450 Per Day £425-£450/day (Outside IR35)
Strategic: NaaS/NaaP enablement, TMF/MEF alignment, Service Catalogs, API exposure. * End-to-end network transformation across Fixed, IP/MPLS, SD-WAN, FTTx, and Telco Cloud domains; architecting scalable, automated, and API-driven network platforms aligned with TMF and MEF standards; * Define and implement Network-as-a-Service (NaaS) and Network-as-a-Platform (NaaP) frameworks — enabling on-demand, API-driven, and intent-based network capabilities aligned with TMF Open APIs and MEF LSO standards. * Drive transformation programs to modernize legacy OSS/BSS stacks into modular, API-exposed digital ecosystems.
Strategic: NaaS/NaaP enablement, TMF/MEF alignment, Service Catalogs, API exposure. * End-to-end network transformation across Fixed, IP/MPLS, SD-WAN, FTTx, and Telco Cloud domains; architecting scalable, automated, and API-driven network platforms aligned with TMF and MEF standards; * Define and implement Network-as-a-Service (NaaS) and Network-as-a-Platform (NaaP) frameworks — enabling on-demand, API-driven, and intent-based network capabilities aligned with TMF Open APIs and MEF LSO standards. * Drive transformation programs to modernize legacy OSS/BSS stacks into modular, API-exposed digital ecosystems.
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Network Telecom Transformation Architect (Fixed, Telecom, Enterprise, Cloud)
Network Telecom Transformation Architect (Fixed, Telecom, Enterprise, Cloud)
Syntax Consultancy Limited
West Fields, RG14
£450 Per Day £425-£450/day (Outside IR35)
Strategic: NaaS/NaaP enablement, TMF/MEF alignment, Service Catalogs, API exposure. * End-to-end network transformation across Fixed, IP/MPLS, SD-WAN, FTTx, and Telco Cloud domains; architecting scalable, automated, and API-driven network platforms aligned with TMF and MEF standards; * Define and implement Network-as-a-Service (NaaS) and Network-as-a-Platform (NaaP) frameworks — enabling on-demand, API-driven, and intent-based network capabilities aligned with TMF Open APIs and MEF LSO standards. * Drive transformation programs to modernize legacy OSS/BSS stacks into modular, API-exposed digital ecosystems.
Strategic: NaaS/NaaP enablement, TMF/MEF alignment, Service Catalogs, API exposure. * End-to-end network transformation across Fixed, IP/MPLS, SD-WAN, FTTx, and Telco Cloud domains; architecting scalable, automated, and API-driven network platforms aligned with TMF and MEF standards; * Define and implement Network-as-a-Service (NaaS) and Network-as-a-Platform (NaaP) frameworks — enabling on-demand, API-driven, and intent-based network capabilities aligned with TMF Open APIs and MEF LSO standards. * Drive transformation programs to modernize legacy OSS/BSS stacks into modular, API-exposed digital ecosystems.
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.NET Framework Version 4.5 or above including strong WCF\ Web API experience
.NET Framework Version 4.5 or above including strong WCF\ Web API experience
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• API Knowledge: Experience with APIs, web services, and data exchange formats.
• API Knowledge: Experience with APIs, web services, and data exchange formats.
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API Knowledge: Experience with APIs, web services, and data exchange formats.
API Knowledge: Experience with APIs, web services, and data exchange formats.
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Integration Engineer Contact (Outside IR35) - Oxfordshire
Integration Engineer Contact (Outside IR35) - Oxfordshire
Halian Technology Limited
OX1, Oxford
From £400 to £550 per day
Security awareness (especially around data flows and API access) RESTful API design and integration API authentication methods
Security awareness (especially around data flows and API access) RESTful API design and integration API authentication methods
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Related Jobs
Locations
- The City, City (EC3)
- Southwark
- The City, City (EC4)
- West Fields
- Euston
- Canary Wharf
- Datchet Common
- Frimley
- Holborn
- Ireland
- City of London
- South East London
- Central London
- Reading
- West End
- South West London
- Cambridge
- Milton Keynes
- Newbury
- North West London
- London
- Berkshire
- Surrey
- Oxfordshire
- Buckinghamshire
- Cambridgeshire
- Hampshire
- Bedfordshire
- East Sussex
- Hertfordshire
- South East
- East Anglia