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)
- The City, City (EC3)
- Clerkenwell
- Coley
- Fenny Lock
- Ferndale
- Harwell
- Maidenhead Thicket
- Saunderton Lee
- Shipton-Under-Wychwood
- City of London
- Farnborough
- Reading
- South West London
- Milton Keynes
- Oxford
- Basingstoke
- Swindon
- Hatfield
- Leatherhead
- London
- Hampshire
- Berkshire
- Oxfordshire
- Buckinghamshire
- Surrey
- Wiltshire
- Bedfordshire
- Hertfordshire
- Northamptonshire
- South East
- South West
- East Midlands
- Midlands
19 Contract API jobs in Maidenhead Thicket + 20 miles
)
Software Developer - Full Stack
Software Developer - Full Stack
AWD Online
Hounslow (TW4)
From £35,000 to £40,000 per annum pro rata + Benefits
API Knowledge: Familiarity with RESTful APIs, microservices and integration patterns
API Knowledge: Familiarity with RESTful APIs, microservices and integration patterns
Senior Full Stack Developer (TypeScript / Vue.js / C# / .NET) Fully Remote (UK-based) Contract Outside IR35 - Long-Term Contract - Competitive Day Rate - Were working with a well-established organisation undergoing a major platform transformation programme, and theyre looking to add an experienced Full Stack Developer to the team. This role will suit someone who enjoys owning features end-to-end, with strong frontend expertise while remaining comfortable working across APIs, databases, and backend services in a modern environment. What Youll Be Doing * Developing and enhancing customer-facing platforms and transactional systems * Building modern applications using Vue.js and TypeScript * Working closely with product, QA, and engineering teams to deliver new features * Investigating and resolving production issues across frontend, APIs, and databases
Senior Full Stack Developer (TypeScript / Vue.js / C# / .NET) Fully Remote (UK-based) Contract Outside IR35 - Long-Term Contract - Competitive Day Rate - Were working with a well-established organisation undergoing a major platform transformation programme, and theyre looking to add an experienced Full Stack Developer to the team. This role will suit someone who enjoys owning features end-to-end, with strong frontend expertise while remaining comfortable working across APIs, databases, and backend services in a modern environment. What Youll Be Doing * Developing and enhancing customer-facing platforms and transactional systems * Building modern applications using Vue.js and TypeScript * Working closely with product, QA, and engineering teams to deliver new features * Investigating and resolving production issues across frontend, APIs, and databases
)
QA Engineer Automation
QA Engineer Automation
Halian Technology Limited
Maidenhead Thicket, Maidenhead (SL6)
Up to £400 per day
API testing and backend validation
API testing and backend validation
)
API Creation and Integration
API Creation and Integration
FEATURED
)
Connectivity: Design PL/SQL interfaces to handle RESTful API operations.
Connectivity: Design PL/SQL interfaces to handle RESTful API operations.
FEATURED
)
Oracle Technical Change Consultant - Financial Systems
Oracle Technical Change Consultant - Financial Systems
Cadence Resourcing Limited
Reading (RG1)
£550 - £600 per day + Outside IR35
The contract requires a solid understanding of database schema and API structures for core financial modules: General Ledger (GL), Accounts Payable (AP), Accounts Receivable (AR), Fixed Assets (FA), and Cash Management (CE).
The contract requires a solid understanding of database schema and API structures for core financial modules: General Ledger (GL), Accounts Payable (AP), Accounts Receivable (AR), Fixed Assets (FA), and Cash Management (CE).
FEATURED
ASP.NET Web API * API-driven backend development
ASP.NET Web API * API-driven backend development
Build and manage secure API bridges to link platforms and allow them to share data efficiently.
Build and manage secure API bridges to link platforms and allow them to share data efficiently.
FEATURED
)
The successful candidate will play a key role in customer data migration, system integration, data synchronisation, and API connectivity across multiple business-critical platforms. API & Systems Integration * Interpret and work with API documentation to understand existing integrations and services. * API authentication and security * Experience using tools such as Postman for API testing and integration validation.
The successful candidate will play a key role in customer data migration, system integration, data synchronisation, and API connectivity across multiple business-critical platforms. API & Systems Integration * Interpret and work with API documentation to understand existing integrations and services. * API authentication and security * Experience using tools such as Postman for API testing and integration validation.
)
Full Stack .NET Web Developer
Full Stack .NET Web Developer
Association For Project Management
Saunderton Lee, Princes Risborough (HP27), HP27 9LE
From £50,000 to £55,000 per annum
Salary: £50,000- £55,000 per annum (depending on experience) 12-month Fixed Term Contract (Full time - 35 hours per week) Hybrid Working Home Based/Princes Risborough - Were Association for Project Management (APM). Were a professional membership organisation that sets the standards for the project profession. As a registered charity, we reinvest our surplus for the benefit of our members and the profession. We deliver education and develop qualifications. We conduct research and provide knowledge and resources. We run events and share best practice. We give people the opportunity to connect and provide community for our individual members and corporate partners, wherever they are. Above all, when doing so makes a difference, we challenge the status quo - Job Role Overview - An exciting opportunity has arisen for a Full Stack .NET Web Developer to join our Digital team on a fixed term ...
Salary: £50,000- £55,000 per annum (depending on experience) 12-month Fixed Term Contract (Full time - 35 hours per week) Hybrid Working Home Based/Princes Risborough - Were Association for Project Management (APM). Were a professional membership organisation that sets the standards for the project profession. As a registered charity, we reinvest our surplus for the benefit of our members and the profession. We deliver education and develop qualifications. We conduct research and provide knowledge and resources. We run events and share best practice. We give people the opportunity to connect and provide community for our individual members and corporate partners, wherever they are. Above all, when doing so makes a difference, we challenge the status quo - Job Role Overview - An exciting opportunity has arisen for a Full Stack .NET Web Developer to join our Digital team on a fixed term ...
)
MERITUS are recruiting for an SC Cleared Technical Architect / Solution Architect to join our client delivering secure, large-scale technology programmes within the Defence and Central Government sector. As a Technical Architect, you will lead the design and assurance of complex, secure systems across major government programmes. You will ensure architectural integrity across the full delivery lifecycle, working closely with engineering, delivery, and security teams to design scalable, compliant, cloud-based solutions. * Lead technical design of large-scale, complex systems * Define and govern solution architecture and technical designs * Ensure alignment with security, performance, scalability, and compliance standards * Work closely with engineering, delivery, and business stakeholders * Provide technical governance, assurance, and risk evaluation
MERITUS are recruiting for an SC Cleared Technical Architect / Solution Architect to join our client delivering secure, large-scale technology programmes within the Defence and Central Government sector. As a Technical Architect, you will lead the design and assurance of complex, secure systems across major government programmes. You will ensure architectural integrity across the full delivery lifecycle, working closely with engineering, delivery, and security teams to design scalable, compliant, cloud-based solutions. * Lead technical design of large-scale, complex systems * Define and govern solution architecture and technical designs * Ensure alignment with security, performance, scalability, and compliance standards * Work closely with engineering, delivery, and business stakeholders * Provide technical governance, assurance, and risk evaluation
)
Lead Full Stack Developer (.NET & React)
Lead Full Stack Developer (.NET & React)
TEAM
Coley, Reading (RG1), RG1 7QG
£70,000 - £80,000 + Benefits
This Lead Full Stack Developer role is an opportunity to take ownership of AI-powered products that are already delivering measurable improvements across UK public services. You'll combine modern front-end engineering, scalable cloud-based development and emerging AI technologies to shape products that reduce demand on services, improve outcomes and drive productivity at scale. Your technical decisions will directly influence product direction, architecture and the next generation of AI-enabled solutions. Working fully remotely, with quarterly visits to Basingstoke (expenses covered), you'll have the freedom to help build innovative products from concept through to delivery. Whats in it for you * Fully remote working with quarterly travel to Basingstoke fully expensed * Salary of £70,000 - £80,000 plus benefits package
This Lead Full Stack Developer role is an opportunity to take ownership of AI-powered products that are already delivering measurable improvements across UK public services. You'll combine modern front-end engineering, scalable cloud-based development and emerging AI technologies to shape products that reduce demand on services, improve outcomes and drive productivity at scale. Your technical decisions will directly influence product direction, architecture and the next generation of AI-enabled solutions. Working fully remotely, with quarterly visits to Basingstoke (expenses covered), you'll have the freedom to help build innovative products from concept through to delivery. Whats in it for you * Fully remote working with quarterly travel to Basingstoke fully expensed * Salary of £70,000 - £80,000 plus benefits package
FEATURED
Location: Farnborough (3 days per week onsite) Contract Length: Initial 3-month contract - IR35 Status: Outside IR35 - Security Clearance: All candidates must be eligible for security clearance prior to appointment. We are seeking an experienced Senior Software Engineer with strong geospatial data experience to join a high-performing engineering team delivering advanced data-driven and navigation-focused solutions within a complex operational environment. This role is suited to a hands-on software engineer with experience designing and developing scalable applications and services that work with geospatial datasets, spatial databases, and mapping technologies. Experience within the maritime domain and optimisation-based problem solving would be highly beneficial. Key Responsibilities * Design, develop, and maintain scalable software applications and services
Location: Farnborough (3 days per week onsite) Contract Length: Initial 3-month contract - IR35 Status: Outside IR35 - Security Clearance: All candidates must be eligible for security clearance prior to appointment. We are seeking an experienced Senior Software Engineer with strong geospatial data experience to join a high-performing engineering team delivering advanced data-driven and navigation-focused solutions within a complex operational environment. This role is suited to a hands-on software engineer with experience designing and developing scalable applications and services that work with geospatial datasets, spatial databases, and mapping technologies. Experience within the maritime domain and optimisation-based problem solving would be highly beneficial. Key Responsibilities * Design, develop, and maintain scalable software applications and services
FEATURED
)
Lead Automation Tester Engineer, C#, tyescript, Playwright
Lead Automation Tester Engineer, C#, tyescript, Playwright
Sanderson Recruitment
Farnborough (GU14), GU14
£350 - £400 per day + Hybrid
Solid experience with API testing and tools such as Swagger
Solid experience with API testing and tools such as Swagger
FEATURED
Core Tech: Node.js, API Integration, Microservices, Microsoft Azure Cloud - Drive a culture of technical pride, ensuring robust API design, secure cloud deployment practices, and insightful code reviews. You will be equally comfortable discussing API design with frontend and mobile engineers as you are discussing business value and roadmap priorities with Senior Executives (C-suite/CxO level) to help them achieve their business ambitions.
Core Tech: Node.js, API Integration, Microservices, Microsoft Azure Cloud - Drive a culture of technical pride, ensuring robust API design, secure cloud deployment practices, and insightful code reviews. You will be equally comfortable discussing API design with frontend and mobile engineers as you are discussing business value and roadmap priorities with Senior Executives (C-suite/CxO level) to help them achieve their business ambitions.
Integration & APIs: REST, event-driven architectures, message brokers, API gateways.
Integration & APIs: REST, event-driven architectures, message brokers, API gateways.
We are proud of our market leading integrations estate, and our Open API capabilities, and continue to build on these with our * Open API for customers, ecosystem partners and Advice firms * Propose and lead on business and partnership models (license, tiered API, embedded UX, or per-event pricing)
We are proud of our market leading integrations estate, and our Open API capabilities, and continue to build on these with our * Open API for customers, ecosystem partners and Advice firms * Propose and lead on business and partnership models (license, tiered API, embedded UX, or per-event pricing)
Proficient in Go and/or Python and experienced with modern observability tooling; bonus points for containers/IoT OS, ACL-as-code patterns, and carrier/router API integrations.
Proficient in Go and/or Python and experienced with modern observability tooling; bonus points for containers/IoT OS, ACL-as-code patterns, and carrier/router API integrations.
This is not a generic SAP support role. If you have spent time in enterprise SAP environments and you want to go deeper, debugging real production issues, working alongside product engineers, and building expertise in a product used by some of the world's most complex organisations, this is worth reading. As an L2 Support Analyst at Basis Technologies, you sit at the technical heart of the customer experience. You take the hard cases, the ones that require real root cause analysis, ABAP debugging, and transport management expertise, and you solve them. You work directly with customers' technical teams, and when a defect needs escalating, you hand it to L3 Engineering with your analysis already done. Product depth, not project breadth. If you have come from a consultancy or SI background, you will know what it feels like to move on before you fully understand what you built.
This is not a generic SAP support role. If you have spent time in enterprise SAP environments and you want to go deeper, debugging real production issues, working alongside product engineers, and building expertise in a product used by some of the world's most complex organisations, this is worth reading. As an L2 Support Analyst at Basis Technologies, you sit at the technical heart of the customer experience. You take the hard cases, the ones that require real root cause analysis, ABAP debugging, and transport management expertise, and you solve them. You work directly with customers' technical teams, and when a defect needs escalating, you hand it to L3 Engineering with your analysis already done. Product depth, not project breadth. If you have come from a consultancy or SI background, you will know what it feels like to move on before you fully understand what you built.
423 exact matches jobs are outside your preferred location
)
Senior Test Analyst (API & Integration Testing) - Contract
Senior Test Analyst (API & Integration Testing) - Contract
Harvey Nash
Milton Keynes (MK1)
£350 - £400 per day
Our customer, a leading automotive organisation, is seeking an experienced Senior Test Analyst to support a major transformation programme involving complex system integrations, data migration activities and API-driven applications. This is a hands-on role requiring strong experience across API testing, manual testing and integration testing. * Strong commercial experience in API Testing * Hands-on experience using Postman for API validation and testing
Our customer, a leading automotive organisation, is seeking an experienced Senior Test Analyst to support a major transformation programme involving complex system integrations, data migration activities and API-driven applications. This is a hands-on role requiring strong experience across API testing, manual testing and integration testing. * Strong commercial experience in API Testing * Hands-on experience using Postman for API validation and testing
FS React Native Developer - Trading London Outside IR35
FS React Native Developer - Trading London Outside IR35
Transparent Technology
London
£450 - £500 per day
Full-Stack Developer (React Native / Java) | London Hybrid | FinTech | Outside IR35 | React, React Native, Java, AWS | £450-500/day - A growing financial technology company is scaling its engineering team as it builds the next generation of modern web and mobile products for global users. With continued investment into digital platforms and infrastructure, they are looking for experienced Full-Stack Developers to support a major product and technology transformation programme. This role will focus on building scalable applications using React or React Native alongside backend services and APIs using Java. You'll work across frontend architecture, integrations, CI/CD pipelines, microservices, and cloud-native systems, helping deliver secure, high-performance products in a collaborative engineering environment. * 6+ years of full-stack engineering experience
Full-Stack Developer (React Native / Java) | London Hybrid | FinTech | Outside IR35 | React, React Native, Java, AWS | £450-500/day - A growing financial technology company is scaling its engineering team as it builds the next generation of modern web and mobile products for global users. With continued investment into digital platforms and infrastructure, they are looking for experienced Full-Stack Developers to support a major product and technology transformation programme. This role will focus on building scalable applications using React or React Native alongside backend services and APIs using Java. You'll work across frontend architecture, integrations, CI/CD pipelines, microservices, and cloud-native systems, helping deliver secure, high-performance products in a collaborative engineering environment. * 6+ years of full-stack engineering experience
)
Enterprise integration patterns (API, event-driven, messaging)
Enterprise integration patterns (API, event-driven, messaging)
FEATURED
Integration architecture: microservices, API gateways, event-driven architectures, event brokers (Kafka), queues - handling 120+ integration points across systems and legacy stacks API Development & Integration - Strong expertise in API lifecycle design usingOpenAPIspecifications (OAS) - can read and write API specs - TMF Open API
Integration architecture: microservices, API gateways, event-driven architectures, event brokers (Kafka), queues - handling 120+ integration points across systems and legacy stacks API Development & Integration - Strong expertise in API lifecycle design usingOpenAPIspecifications (OAS) - can read and write API specs - TMF Open API
)
Strong understanding of API-driven architectures, event-driven systems, and integration patterns
Strong understanding of API-driven architectures, event-driven systems, and integration patterns
)
The Microsoft Entra ID Architect is responsible for defining the target state architecture for enterprise identity using Microsoft Entra ID, with a strong focus on Identity Governance, Secure Access, and API driven provisioning. Design API first provisioning patterns using - Microsoft Graph API Proven architecture experience with Graph API, SCIM, Lifecycle Workflows.
The Microsoft Entra ID Architect is responsible for defining the target state architecture for enterprise identity using Microsoft Entra ID, with a strong focus on Identity Governance, Secure Access, and API driven provisioning. Design API first provisioning patterns using - Microsoft Graph API Proven architecture experience with Graph API, SCIM, Lifecycle Workflows.
Related Jobs
Locations
- The City, City (EC2)
- The City, City (EC3)
- Clerkenwell
- Coley
- Fenny Lock
- Ferndale
- Harwell
- Maidenhead Thicket
- Saunderton Lee
- Shipton-Under-Wychwood
- City of London
- Farnborough
- Reading
- South West London
- Milton Keynes
- Oxford
- Basingstoke
- Swindon
- Hatfield
- Leatherhead
- London
- Hampshire
- Berkshire
- Oxfordshire
- Buckinghamshire
- Surrey
- Wiltshire
- Bedfordshire
- Hertfordshire
- Northamptonshire
- South East
- South West
- East Midlands
- Midlands