Date posted
Commute time
Locations
Type of Company
Job types
Salaries
Locations
Locations
Salaries
Date posted
Type of Company
Job types
Locations
- St James
- The City, City (EC2)
- Shoreditch
- Southwark
- The City, City (EC3)
- Winnersh
- Clerkenwell
- Euston
- Hammersmith
- Islington
- City of London
- Reading
- South West London
- South East London
- East London
- Central London
- Farnborough
- West End
- Basingstoke
- West London
- London
- Berkshire
- Hampshire
- Surrey
- West Sussex
- East Sussex
- Hertfordshire
- Kent
- South East
14 Contract API jobs in West Sussex + 20 miles
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API Creation and Integration
API Creation and Integration
FEATURED
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Connectivity: Design PL/SQL interfaces to handle RESTful API operations.
Connectivity: Design PL/SQL interfaces to handle RESTful API operations.
FEATURED
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Experience in creating front end and API automated test projects
Experience in creating front end and API automated test projects
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Developer C#, .NET
Developer C#, .NET
Gold Group
East Grinstead (RH19)
£47500.00 - £52000.00 per annum + + benefits, Hybrid WFH
ASP.NET MVC4 / ASP.NET Core (MVC / API)
ASP.NET MVC4 / ASP.NET Core (MVC / API)
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
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Lead Full Stack Ruby Developer
Lead Full Stack Ruby Developer
G.R.E. Recruitment Limited
Burgess Hill (RH15)
From £80,000 to £85,000 per annum
Tech Stack: Ruby on Rails, SQL, PostgreSQL, JavaScript, Turbolinks, ReactJS, NextJS, API's, AWS - Must have an understanding of the benefits and risks of adopting AI safely and effectively
Tech Stack: Ruby on Rails, SQL, PostgreSQL, JavaScript, Turbolinks, ReactJS, NextJS, API's, AWS - Must have an understanding of the benefits and risks of adopting AI safely and effectively
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QA Engineering Lead SaaS
QA Engineering Lead SaaS
Client Server
Underhill Park, Reigate (RH2), RH2
£100000 - £130000 per annum + bonus + benefits
You have experience with C# test automation frameworks at all levels (unit, integration, API/system)
You have experience with C# test automation frameworks at all levels (unit, integration, API/system)
NEWPREMIUM
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Location: Horsham (Hybrid) Salary: Up to £40,000 DOE *MUST HAVE VALID RIGHT TO WORK IN UK WITHOUT EVER NEEDING SPONSORSHIP* Our client is a well-established technology business with a strong reputation for delivering innovative software and digital solutions across a diverse customer base. Due to continued growth and investment in internal systems, they are looking to appoint a Software Business Analyst to support a range of business-critical projects. This is an excellent opportunity to join a collaborative and fast-paced SME environment where you'll play a key role in bridging the gap between business operations and technical delivery teams. The Role - As a Software Business Analyst, you'll work closely with stakeholders across the business to understand requirements, improve processes, and support the successful delivery of software and systems projects.
Location: Horsham (Hybrid) Salary: Up to £40,000 DOE *MUST HAVE VALID RIGHT TO WORK IN UK WITHOUT EVER NEEDING SPONSORSHIP* Our client is a well-established technology business with a strong reputation for delivering innovative software and digital solutions across a diverse customer base. Due to continued growth and investment in internal systems, they are looking to appoint a Software Business Analyst to support a range of business-critical projects. This is an excellent opportunity to join a collaborative and fast-paced SME environment where you'll play a key role in bridging the gap between business operations and technical delivery teams. The Role - As a Software Business Analyst, you'll work closely with stakeholders across the business to understand requirements, improve processes, and support the successful delivery of software and systems projects.
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
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Microservices and API design knowledge
Microservices and API design knowledge
FEATURED
Identify new integrations and automation opportunities to increase collaboration between enterprise applications using Flow Designer, Integration Hub, and API standards.
Identify new integrations and automation opportunities to increase collaboration between enterprise applications using Flow Designer, Integration Hub, and API standards.
Senior Developer – Enterprise Reporting & Applications
Senior Developer – Enterprise Reporting & Applications
Subsea Craft Limited
Portsmouth, Hampshire
£55,000 - £60,000 a year
Express.js for API and service development
Express.js for API and service development
Monitoring and optimising API development and managing calls and consumption cost
Monitoring and optimising API development and managing calls and consumption cost
Monitoring and optimising API development and managing calls and consumption cost
Monitoring and optimising API development and managing calls and consumption cost
574 exact matches jobs are outside your preferred location
Technical Product Manager API SaaS
Technical Product Manager API SaaS
Client Server
Shoreditch, East London (E1), EC2A
£95000 - £130000 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
Java Developer Kafka API - Tech Consultancy
Java Developer Kafka API - Tech Consultancy
Client Server
City of London (EC2A), EC2A
£80000 - £90000 per annum
Java Developer / Backend Software Engineer (Kafka API) London / WFH to £90k
Java Developer / Backend Software Engineer (Kafka API) London / WFH to £90k
NEWPREMIUM
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Principle Java Engineer
Principle Java Engineer
Profile 29
South East London (SE1)
From £70,000 to £90,000 per annum + benefits + hybrid (or remote) work
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 lead senior manager manage
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 lead senior manager manage
Principle Java Engineer
Principle Java Engineer
Profile 29
South East London (SE1)
From £70,000 to £90,000 per annum + benefits + hybrid (or remote) work
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 lead senior manager manage
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 lead senior manager manage
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C# / .NET SENIOR SOFTWARE ENGINEER (AWS)
C# / .NET SENIOR SOFTWARE ENGINEER (AWS)
Secure Recruitment Ltd
East London (E1)
Up to £90,000 per annum + Benefits (Hybrid Working)
System & API Design: Strong Database Architecture Skills & Experience Designing Patterns that make Integrations Fast, Reliable & Elegant. Searches: Software Engineer / AWS / Backend Engineer /Integration Systems Architect /Data Pipeline Engineer /Senior AWS Cloud Engineer /Backend Technical Lead / Engineering Lead /Senior Software Engineer /Senior Backend Engineer /Principal Platform Engineer /Lead C# Developer / AI / API Design / API / LLMs / Artificial Intelligence
System & API Design: Strong Database Architecture Skills & Experience Designing Patterns that make Integrations Fast, Reliable & Elegant. Searches: Software Engineer / AWS / Backend Engineer /Integration Systems Architect /Data Pipeline Engineer /Senior AWS Cloud Engineer /Backend Technical Lead / Engineering Lead /Senior Software Engineer /Senior Backend Engineer /Principal Platform Engineer /Lead C# Developer / AI / API Design / API / LLMs / Artificial Intelligence
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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
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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
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
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Job Description - Please note this posting is to advertise potential job opportunities. This exact role may not be open today but could open in the near future. When you apply, a Cisco representative may contact you directly if a relevant position opens. Start Date: as soon as possible - Location: Feltham, United Kingdom (Hybrid work approach, working from the Feltham office 1-2 days per week.) Meet the Team - We at Cisco are looking for a Site Reliability Engineer, with a passion for technology and solid academic foundations in analytical disciplines. Cisco is a strong advocate of using its own enterprise networking, data center, collaboration products, and solutions internally; Cisco IT deploys all these technologies the result being that Cisco IT accrues a great deal of experience in how to design, deploy, operate, and automate these solutions within a large global enterprise.
Job Description - Please note this posting is to advertise potential job opportunities. This exact role may not be open today but could open in the near future. When you apply, a Cisco representative may contact you directly if a relevant position opens. Start Date: as soon as possible - Location: Feltham, United Kingdom (Hybrid work approach, working from the Feltham office 1-2 days per week.) Meet the Team - We at Cisco are looking for a Site Reliability Engineer, with a passion for technology and solid academic foundations in analytical disciplines. Cisco is a strong advocate of using its own enterprise networking, data center, collaboration products, and solutions internally; Cisco IT deploys all these technologies the result being that Cisco IT accrues a great deal of experience in how to design, deploy, operate, and automate these solutions within a large global enterprise.
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Work closely with Digital, Data, API, and Salesforce teams to align delivery across multiple workstreams. * Experience working across Data, API, Digital, and CRM teams within complex enterprise environments.
Work closely with Digital, Data, API, and Salesforce teams to align delivery across multiple workstreams. * Experience working across Data, API, Digital, and CRM teams within complex enterprise environments.
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
Related Jobs
Locations
- St James
- The City, City (EC2)
- Shoreditch
- Southwark
- The City, City (EC3)
- Winnersh
- Clerkenwell
- Euston
- Hammersmith
- Islington
- City of London
- Reading
- South West London
- South East London
- East London
- Central London
- Farnborough
- West End
- Basingstoke
- West London
- London
- Berkshire
- Hampshire
- Surrey
- West Sussex
- East Sussex
- Hertfordshire
- Kent
- South East