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39 Contract API jobs in Meadow Green, Welwyn Garden City + 20 miles
365 exact matches jobs are outside your preferred location
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Fully Remote - UK - 3 Month Contract - Rate: £450 - £500 per day (Inside IR35) We are looking to recruit a Senior Front End Developer for a global software organisation on an initial 3 month contract. This is an excellent opportunity to work hands-on with modern frontend technologies, shape the user experience, and mentor junior developers. * Hands-on development of new functionality, building the frontend and integrating with APIs. * Modify and modernise existing functionality to improve performance and usability. * Apply best practices to deliver high-quality, secure, and performant solutions. * Build reusable components and collaborate closely with teams across the business. * Work with product managers, UX/UI designers, and stakeholders to gather requirements and propose effective solutions. * Provide accurate estimates for work items and contribute to project pla
Fully Remote - UK - 3 Month Contract - Rate: £450 - £500 per day (Inside IR35) We are looking to recruit a Senior Front End Developer for a global software organisation on an initial 3 month contract. This is an excellent opportunity to work hands-on with modern frontend technologies, shape the user experience, and mentor junior developers. * Hands-on development of new functionality, building the frontend and integrating with APIs. * Modify and modernise existing functionality to improve performance and usability. * Apply best practices to deliver high-quality, secure, and performant solutions. * Build reusable components and collaborate closely with teams across the business. * Work with product managers, UX/UI designers, and stakeholders to gather requirements and propose effective solutions. * Provide accurate estimates for work items and contribute to project pla
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We are seeking a Security Architect to bridge the gap between governance, engineering, and business strategy. This role will focus on embedding security as code into enterprise ways of working, ensuring frameworks are practical, scalable, and enable rather than block delivery. You will help shape security policies and standards, then implement them directly in code to support developer adoption. Engineering & Delivery * Convert technology and governance standards into policies as code. * Integrate policies and controls via APIs. * Design and build scalable automation using AWS, Python, Terraform, and CI/CD tooling. * Drive adoption of security and governance through practical, developer-friendly solutions. Business Strategy & Governance * Translate governance objectives into actionable outcomes. * Define frameworks that align with enterprise priorities.
We are seeking a Security Architect to bridge the gap between governance, engineering, and business strategy. This role will focus on embedding security as code into enterprise ways of working, ensuring frameworks are practical, scalable, and enable rather than block delivery. You will help shape security policies and standards, then implement them directly in code to support developer adoption. Engineering & Delivery * Convert technology and governance standards into policies as code. * Integrate policies and controls via APIs. * Design and build scalable automation using AWS, Python, Terraform, and CI/CD tooling. * Drive adoption of security and governance through practical, developer-friendly solutions. Business Strategy & Governance * Translate governance objectives into actionable outcomes. * Define frameworks that align with enterprise priorities.
Android Developer, 6 months, London, £500-550, Start ASAP - Location: London (Hybrid) Sector: Financial Services - Inside IR35 - Are you an experienced Android Developer ready to join a major Engineering Transformation programme at one of the UK's leading banks? My client is looking for a skilled contractor with strong Kotlin / Java expertise to help shape and deliver cutting-edge Android applications in a fast-paced, collaborative environment. * Building and maintaining advanced Android apps using Kotlin, Java, and frameworks like RxJava * Designing with architecture patterns like MVP, MVVM, or MVI * Handling the full app lifecycle - from modules through to Play Store deployment * Optimising mobile experiences across a range of screen sizes and Android versions * Collaborating with cross-functional teams to define and deliver new features * Integrating APIs and exter
Android Developer, 6 months, London, £500-550, Start ASAP - Location: London (Hybrid) Sector: Financial Services - Inside IR35 - Are you an experienced Android Developer ready to join a major Engineering Transformation programme at one of the UK's leading banks? My client is looking for a skilled contractor with strong Kotlin / Java expertise to help shape and deliver cutting-edge Android applications in a fast-paced, collaborative environment. * Building and maintaining advanced Android apps using Kotlin, Java, and frameworks like RxJava * Designing with architecture patterns like MVP, MVVM, or MVI * Handling the full app lifecycle - from modules through to Play Store deployment * Optimising mobile experiences across a range of screen sizes and Android versions * Collaborating with cross-functional teams to define and deliver new features * Integrating APIs and exter
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Proven track record in API design and development.
Proven track record in API design and development.
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5+ years experience in working with the .NET framework, particularly with ASP.NET Core, React/React Native, C#, Web API Experience developing REST API-driven mobile first web applications
5+ years experience in working with the .NET framework, particularly with ASP.NET Core, React/React Native, C#, Web API Experience developing REST API-driven mobile first web applications
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Backend Software Engineer C# .Net - Asset Management
Backend Software Engineer C# .Net - Asset Management
Client Server
The City, EC4
£100000 - £150000 per annum + bonus + benefits
There's a focus on backend and API development although you'll also have elements of front end work with JavaScript and React.js.
There's a focus on backend and API development although you'll also have elements of front end work with JavaScript and React.js.
NEWPREMIUM
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SuiteCRM Developer - £420p/d Inside IR35 - Remote / UK Based
SuiteCRM Developer - £420p/d Inside IR35 - Remote / UK Based
Exalto Consulting ltd
London
£420p/d Inside IR35
Building and maintaining API integrations (REST/SOAP)
Building and maintaining API integrations (REST/SOAP)
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REST API development
REST API development
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Experience of deploying into and using AWS services including VPC, EC2, RDS, API Gateway
Experience of deploying into and using AWS services including VPC, EC2, RDS, API Gateway
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Strong knowledge of Django (or similar) and API design
Strong knowledge of Django (or similar) and API design
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API testing tools (e.g., Postman, REST Assured).
API testing tools (e.g., Postman, REST Assured).
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Integration - Expert experience with integration techniques, including real-time messaging (AMQ), API design (JSON, Swagger), and batch techniques.
Integration - Expert experience with integration techniques, including real-time messaging (AMQ), API design (JSON, Swagger), and batch techniques.
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Proficiency in API testing (Postman or equivalent) and SQL for data validation.
Proficiency in API testing (Postman or equivalent) and SQL for data validation.
NEWFEATURED
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Lead the design and development of automated UI and API testing solutions using SpecFlow and Playwright, written in C# .NET.
Lead the design and development of automated UI and API testing solutions using SpecFlow and Playwright, written in C# .NET.
NEWFEATURED
You may also be asked to support the testing of releases for our Client API and Mobile Application. * API testing - building out automated test coverage of our RESTful Client API * Collaborate with the external contractor QA resource on specific projects (e.g. automating API testing) and as an additional resource when required
You may also be asked to support the testing of releases for our Client API and Mobile Application. * API testing - building out automated test coverage of our RESTful Client API * Collaborate with the external contractor QA resource on specific projects (e.g. automating API testing) and as an additional resource when required
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Contribute to development and support of the Chat API (BFF) for client and service integrations.
Contribute to development and support of the Chat API (BFF) for client and service integrations.
You will specialise in designing web applications, middleware/API layer and AWS Cloud environments and develop proof of concepts whilst taking ownership for end-to-end technical project delivery.
You will specialise in designing web applications, middleware/API layer and AWS Cloud environments and develop proof of concepts whilst taking ownership for end-to-end technical project delivery.
As a Solution Architect, you will be instrumental in driving the evolution of our SAP platform by delivering API-enabled digital products that integrate key business capabilities. * Familiarity with API management tools and practices, including API versioning, documentation, and security.
As a Solution Architect, you will be instrumental in driving the evolution of our SAP platform by delivering API-enabled digital products that integrate key business capabilities. * Familiarity with API management tools and practices, including API versioning, documentation, and security.
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Wallarm is the only solution that unifies best-in-class API Security and WAAP (Next-Gen WAF) capabilities to protect your entire API and web application portfolio in multi-cloud and cloud-native environments. * Recommend API security best practices, application architectures, platforms and application infrastructure required to successfully implement a complete API security solution based on Wallarm - Prior experience in API security, API management, SIEM, Software Development, DevOps, DevSecOps, or web application firewalls is preferred
Wallarm is the only solution that unifies best-in-class API Security and WAAP (Next-Gen WAF) capabilities to protect your entire API and web application portfolio in multi-cloud and cloud-native environments. * Recommend API security best practices, application architectures, platforms and application infrastructure required to successfully implement a complete API security solution based on Wallarm - Prior experience in API security, API management, SIEM, Software Development, DevOps, DevSecOps, or web application firewalls is preferred
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Ebury Connect is dedicated to helping clients with complex cross-border money flows by providing technology-driven payment automation through our public API stack. This is a critical role that requires a deep understanding of the travel industry, cross-border payments, and API-first product development. * Product Strategy & Vision : Define the product vision and roadmap for the travel vertical, focusing on integrated solutions delivered via our API stack. * API-First Development : Work with engineering teams to define and prioritize features for our public API stack, ensuring it supports the specific requirements of travel companies. * API & Integrated Solutions : Proven experience defining and executing product strategies for integrated solutions via APIs.
Ebury Connect is dedicated to helping clients with complex cross-border money flows by providing technology-driven payment automation through our public API stack. This is a critical role that requires a deep understanding of the travel industry, cross-border payments, and API-first product development. * Product Strategy & Vision : Define the product vision and roadmap for the travel vertical, focusing on integrated solutions delivered via our API stack. * API-First Development : Work with engineering teams to define and prioritize features for our public API stack, ensuring it supports the specific requirements of travel companies. * API & Integrated Solutions : Proven experience defining and executing product strategies for integrated solutions via APIs.
Experience of an API-first and services-led design approach, with the ability to use business requirements, user stories, data standards, and integration patterns to help to define services and APIs
Experience of an API-first and services-led design approach, with the ability to use business requirements, user stories, data standards, and integration patterns to help to define services and APIs
API Performance: fast response times, high uptime * Strong background in RESTful API design and implementation
API Performance: fast response times, high uptime * Strong background in RESTful API design and implementation
Our platform is powered by our REST APIs and everything is developed with an API-first approach.
Our platform is powered by our REST APIs and everything is developed with an API-first approach.
Implement functionality based on defined API
Implement functionality based on defined API
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SharePoint CSOM API
SharePoint CSOM API
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Related Jobs
Locations
- Southwark
- The City, City (EC2)
- The City, City (EC3)
- Duxford
- Greenwich
- Lambeth
- Canary Wharf
- Clerkenwell
- Felbridge
- Fivensgreen
- City of London
- South East London
- Central London
- West End
- Cambridge
- Milton Keynes
- East London
- South West London
- Northampton
- Oxford
- London
- Berkshire
- Cambridgeshire
- Buckinghamshire
- Surrey
- Oxfordshire
- Hertfordshire
- Northamptonshire
- West Sussex
- Essex
- South East
- East Anglia
- East Midlands
- Midlands