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126 Permanent API jobs in Middlegreen + 20 miles
Node Developer Remote Working - Lynx are currently working with a large IT consultancy to help them source a Node Developer. Our client is large global Consultancy who work with enterprise clients, solving their business and technology problems using cutting edge Solutions. Design, implement, and manage backend applications and APIs using Node.js - Work with RESTful APIs and external services to enhance system capabilities and connectivity - Perform unit and integration testing, troubleshoot issues, and maintain high code reliability - Collaborating with stakeholders and leadership to understand and refine project requirements - Working on diverse projects and challenges in a consultancy capacity - Advocating for and contributing to best practices in software engineering across teams and projects - Previous experience working within a consulting organisation is essent
Node Developer Remote Working - Lynx are currently working with a large IT consultancy to help them source a Node Developer. Our client is large global Consultancy who work with enterprise clients, solving their business and technology problems using cutting edge Solutions. Design, implement, and manage backend applications and APIs using Node.js - Work with RESTful APIs and external services to enhance system capabilities and connectivity - Perform unit and integration testing, troubleshoot issues, and maintain high code reliability - Collaborating with stakeholders and leadership to understand and refine project requirements - Working on diverse projects and challenges in a consultancy capacity - Advocating for and contributing to best practices in software engineering across teams and projects - Previous experience working within a consulting organisation is essent
Node Developer Remote Working - Lynx are currently working with a large IT consultancy to help them source a Node Developer. Our client is large global Consultancy who work with enterprise clients, solving their business and technology problems using cutting edge Solutions. Design, implement, and manage backend applications and APIs using Node.js - Work with RESTful APIs and external services to enhance system capabilities and connectivity - Perform unit and integration testing, troubleshoot issues, and maintain high code reliability - Collaborating with stakeholders and leadership to understand and refine project requirements - Working on diverse projects and challenges in a consultancy capacity - Advocating for and contributing to best practices in software engineering across teams and projects - Previous experience working within a consulting organisation is essent
Node Developer Remote Working - Lynx are currently working with a large IT consultancy to help them source a Node Developer. Our client is large global Consultancy who work with enterprise clients, solving their business and technology problems using cutting edge Solutions. Design, implement, and manage backend applications and APIs using Node.js - Work with RESTful APIs and external services to enhance system capabilities and connectivity - Perform unit and integration testing, troubleshoot issues, and maintain high code reliability - Collaborating with stakeholders and leadership to understand and refine project requirements - Working on diverse projects and challenges in a consultancy capacity - Advocating for and contributing to best practices in software engineering across teams and projects - Previous experience working within a consulting organisation is essent
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Senior Backend Engineer
Senior Backend Engineer
Ncounter LTD
SW1, South West London
From £120,000 to £160,000 per annum Equity and package
Product-Focused Backend Engineer Functional Programming & Distributed Systems - London (Hybrid) | £120,000£160,000 + Equity - At Ncounter, were partnering with a cutting-edge AI company on a mission to redefine how professionals in highly regulated industries interact with complex, multi-modal data. Their platform empowers users to deploy custom no-code AI agents that produce verifiable outputs with full transparency - ensuring trust, compliance, and control remain central to every decision. As a Backend Engineer, youll join a growing team working at the forefront of AI infrastructure. This isnt just about clean code or strong delivery - its about ownership, product intuition, and building for scale. Youll be part of a lean, high-calibre engineering function where every member contributes to planning, testing, analysis, and execution.
Product-Focused Backend Engineer Functional Programming & Distributed Systems - London (Hybrid) | £120,000£160,000 + Equity - At Ncounter, were partnering with a cutting-edge AI company on a mission to redefine how professionals in highly regulated industries interact with complex, multi-modal data. Their platform empowers users to deploy custom no-code AI agents that produce verifiable outputs with full transparency - ensuring trust, compliance, and control remain central to every decision. As a Backend Engineer, youll join a growing team working at the forefront of AI infrastructure. This isnt just about clean code or strong delivery - its about ownership, product intuition, and building for scale. Youll be part of a lean, high-calibre engineering function where every member contributes to planning, testing, analysis, and execution.
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Data Strategy Lead Reinsurance City of London
Data Strategy Lead Reinsurance City of London
IPS Group
City of London, London
£120,000-£150,000 per annum plus benefits
Location: City of London, Hybrid - Salary: £120,000-£150,000 - Industry: Insurance/Reinsurance - Tenure: Permanent - Our Client - An international financial services organisation is looking for a hands-on data leader to shape and drive its data strategy across multiple global regions. The role is based in London and will focus on strengthening adoption of enterprise-wide data platforms, improving analytics capability, and unlocking value from diverse and complex datasets. This position will support a wide variety of business areas and requires close collaboration with colleagues across the UK, Europe, Asia Pacific, Latin America, the Middle East, and Africa. Key Responsibilities * Provide leadership and direction to embedded data specialists, helping them deliver solutions aligned to business needs. * Lead the rollout and ongoing enhancement of core data products and
Location: City of London, Hybrid - Salary: £120,000-£150,000 - Industry: Insurance/Reinsurance - Tenure: Permanent - Our Client - An international financial services organisation is looking for a hands-on data leader to shape and drive its data strategy across multiple global regions. The role is based in London and will focus on strengthening adoption of enterprise-wide data platforms, improving analytics capability, and unlocking value from diverse and complex datasets. This position will support a wide variety of business areas and requires close collaboration with colleagues across the UK, Europe, Asia Pacific, Latin America, the Middle East, and Africa. Key Responsibilities * Provide leadership and direction to embedded data specialists, helping them deliver solutions aligned to business needs. * Lead the rollout and ongoing enhancement of core data products and
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We are delighted to be partnering with a successful technology consultancy that is expanding its Software Development team. This is an excellent opportunity for a proactive and committed Software Developer with expertise in .NET (C# / ASP.NET), modern JavaScript frameworks, and SQL to contribute to impactful projects across a diverse client base. About the role - As a Software Developer, you will be working on the development, and maintenance of their internal software product, ensuring seamless integrations into their clients systems. You'll also get involved with external projects, collaborating closely with clients to understand their needs, and design effective solutions. This role blends hands-on technical work with client interaction, giving you the chance to make a visible impact. Key Responsibilities
We are delighted to be partnering with a successful technology consultancy that is expanding its Software Development team. This is an excellent opportunity for a proactive and committed Software Developer with expertise in .NET (C# / ASP.NET), modern JavaScript frameworks, and SQL to contribute to impactful projects across a diverse client base. About the role - As a Software Developer, you will be working on the development, and maintenance of their internal software product, ensuring seamless integrations into their clients systems. You'll also get involved with external projects, collaborating closely with clients to understand their needs, and design effective solutions. This role blends hands-on technical work with client interaction, giving you the chance to make a visible impact. Key Responsibilities
FEATURED
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Deep expertise in SAP Integration Suite, including Cloud Integration and API Management.
Deep expertise in SAP Integration Suite, including Cloud Integration and API Management.
FEATURED
Deep expertise in SAP Integration Suite, including Cloud Integration and API Management.
Deep expertise in SAP Integration Suite, including Cloud Integration and API Management.
FEATURED
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Develop an API used in the product as well as their users
Develop an API used in the product as well as their users
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API-OpenAPI/GraphQL/GRPC
API-OpenAPI/GraphQL/GRPC
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Experience with Java and API testing using Postman.
Experience with Java and API testing using Postman.
NEW
Experience with Java and API testing using Postman.
Experience with Java and API testing using Postman.
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Configure and support Axway solutions, including API management and B2B gateway. * Working knowledge of Axway technologies, particularly API management and B2B gateway.
Configure and support Axway solutions, including API management and B2B gateway. * Working knowledge of Axway technologies, particularly API management and B2B gateway.
FEATURED
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Expertise in open-source frameworks, API-led design, and secure, scalable architectures.
Expertise in open-source frameworks, API-led design, and secure, scalable architectures.
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Familiarity with microservices architecture, API design, and integration patterns.
Familiarity with microservices architecture, API design, and integration patterns.
FEATURED
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Quantitative Analyst - Modelling and Structured Credit
Quantitative Analyst - Modelling and Structured Credit
CBSbutler Holdings Limited
EC1, City of London
£80000 - £120000 per annum + Bonus + Full Benefits
Leverage and integrate Intex analytics, with particular focus on the latest Intex API. o Solid, hands-on experience with Intex, including recent use of the latest Intex API.
Leverage and integrate Intex analytics, with particular focus on the latest Intex API. o Solid, hands-on experience with Intex, including recent use of the latest Intex API.
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Junior Test Automation Engineer
Junior Test Automation Engineer
Lynx Recruitment Limited
SW1W, South West London
From £35,000 to £50,000 per annum
Hands-on experience with API testing tools such as RestAssured or SoapUI
Hands-on experience with API testing tools such as RestAssured or SoapUI
Test Automation Engineer
Test Automation Engineer
Lynx Recruitment Limited
SW1W, South West London
From £50,000 to £65,000 per annum
Hands-on experience with API testing tools such as RestAssured or SoapUI
Hands-on experience with API testing tools such as RestAssured or SoapUI
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SharePoint REST API: Integration with SharePoint lists and libraries
SharePoint REST API: Integration with SharePoint lists and libraries
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Software Engineer - JavaScript / React / Typescript / Node
Software Engineer - JavaScript / React / Typescript / Node
Inspire People
Central London, London, WC2N 5DN
£600 - £700 per day + Inside IR35
Experience with building and maintaining RESTful API's using Node.js. Developing and maintaining applications in serverless environments using distributed architecture and AWS tools including Lambda, API Gateway, S3, Cognito & RDS.
Experience with building and maintaining RESTful API's using Node.js. Developing and maintaining applications in serverless environments using distributed architecture and AWS tools including Lambda, API Gateway, S3, Cognito & RDS.
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AI Technical Consultant
AI Technical Consultant
Polar Recruitment Services Ltd
KT13, Weybridge
From £60,000 to £70,000 per annum
Strong proficiency in Python, Java, and SQL/NoSQL databases, along with API development and data integration techniques.
Strong proficiency in Python, Java, and SQL/NoSQL databases, along with API development and data integration techniques.
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AI (artificial intelligence) DevOps Engineer
AI (artificial intelligence) DevOps Engineer
Huxley Associates
EC1, City of London
£60000 - £90000 per annum
You'll also ensure alignment with enterprise-grade security practices, including zero trust principles, identity-aware routing, and integration with Azure API Management and Application Gateway. * API Gateway, Azure API Management (APIM), Azure Application Gateway
You'll also ensure alignment with enterprise-grade security practices, including zero trust principles, identity-aware routing, and integration with Azure API Management and Application Gateway. * API Gateway, Azure API Management (APIM), Azure Application Gateway
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Proficiency with Git workflows, LAMP stack, and REST API integrations.
Proficiency with Git workflows, LAMP stack, and REST API integrations.
NEWFEATURED
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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Build, deploy, and monitor solutions using AWS services (Lambda, API customizing platforms and overseeing the full API lifecycle using Apigee Edge and X. Drive API strategy execution, provide technical support, and generate insights - o Ensure API security and access control using OAuth, API keys, JWT, and other - o Strong knowledge of Apigee or similar API Management platforms. o Implement API design patterns, performance optimization, and custom - analytics reporting for API consumption and error tracking.
Build, deploy, and monitor solutions using AWS services (Lambda, API customizing platforms and overseeing the full API lifecycle using Apigee Edge and X. Drive API strategy execution, provide technical support, and generate insights - o Ensure API security and access control using OAuth, API keys, JWT, and other - o Strong knowledge of Apigee or similar API Management platforms. o Implement API design patterns, performance optimization, and custom - analytics reporting for API consumption and error tracking.
NEWFEATURED
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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
PREMIUM
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Locations
- Southwark
- The City, City (EC3)
- Charing Cross
- Datchet Common
- Euston
- The Borough
- The City, City (EC4)
- Canary Wharf
- Clerkenwell
- Imberhorne
- City of London
- South East London
- Reading
- South West London
- Cambridge
- Milton Keynes
- Central London
- West End
- East London
- North West London
- London
- Berkshire
- Cambridgeshire
- Buckinghamshire
- Hampshire
- Surrey
- Oxfordshire
- Hertfordshire
- Bedfordshire
- East Sussex
- South East
- East Anglia
- East Midlands
- Midlands
- South West