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Date posted
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- Shoreditch
- The City, City (EC2)
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- Ireland
- Southwark
- The City, City (EC4)
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- Bloomsbury
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13 Contract API jobs in Duxford, Cambridge + 20 miles
258 exact matches jobs are outside your preferred location
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Senior Front-End Developer - 1 Year Contract - Remote
Senior Front-End Developer - 1 Year Contract - Remote
Stealth IT Consulting Limited
UK
From £450 to £500 per day
Understanding of API integrations and cross-functional workflow
Understanding of API integrations and cross-functional workflow
Senior Full Stack Developer (SC Cleared) - 12 Month Contract - Remote
Senior Full Stack Developer (SC Cleared) - 12 Month Contract - Remote
Stealth IT Consulting Limited
UK
From £450 to £500 per day
Strong understanding of API development and microservices
Strong understanding of API development and microservices
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• Strong backend engineering background delivering high-scale systems with AI components (Python/Java, RAG frameworks, vector databases, API engineering).
• Strong backend engineering background delivering high-scale systems with AI components (Python/Java, RAG frameworks, vector databases, API engineering).
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SPFx, TypeScript/JavaScript, Graph API, PnP PowerShell experience
SPFx, TypeScript/JavaScript, Graph API, PnP PowerShell experience
My client are seeking a JavaDeveloper with strong expertise in Apache Kafka, Node.js, and AWS cloud services. The role involves designing and implementing scalable, event-driven architectures, building microservices, and deploying solutions in a cloud-native environment. Essential Skills & Experience * Strong commercial experience with Java (core + modern frameworks) * Hands-on experience with Node.js * Proven background delivering solutions in AWS environments * Understanding of microservices, APIs and distributed systems * Experience working in Agile / DevOps environments * Familiarity with CI/CD pipelines and cloud-native tooling * Experience with Kafka Desirable * Previous experience working in public-sector or secure environments
My client are seeking a JavaDeveloper with strong expertise in Apache Kafka, Node.js, and AWS cloud services. The role involves designing and implementing scalable, event-driven architectures, building microservices, and deploying solutions in a cloud-native environment. Essential Skills & Experience * Strong commercial experience with Java (core + modern frameworks) * Hands-on experience with Node.js * Proven background delivering solutions in AWS environments * Understanding of microservices, APIs and distributed systems * Experience working in Agile / DevOps environments * Familiarity with CI/CD pipelines and cloud-native tooling * Experience with Kafka Desirable * Previous experience working in public-sector or secure environments
Java Developer 12 month Contract - 1 Stage Interview
Java Developer 12 month Contract - 1 Stage Interview
Stealth IT Consulting Limited
UK
Up to £400 per day £400 (Inside IR35) Per Day
Role Overview - We are seeking a skilled Java Developer with strong experience across Java, Node.js, and AWS to support large-scale digital transformation projects within a secure public-sector environment. You will join a collaborative engineering team focused on delivering secure, scalable and high-quality services. Key Responsibilities * Develop, maintain and optimise backend services using Java and Node.js * Build and deploy applications on AWS following best practices * Work within an Agile delivery team, contributing to sprints, ceremonies and code reviews * Collaborate with architects, product owners and other engineers to deliver high-impact features * Ensure code quality, security and performance are upheld * Support CI/CD processes, testing and automation - Essential Skills & Experience * Strong commercial experience with Java (core + modern frameworks)
Role Overview - We are seeking a skilled Java Developer with strong experience across Java, Node.js, and AWS to support large-scale digital transformation projects within a secure public-sector environment. You will join a collaborative engineering team focused on delivering secure, scalable and high-quality services. Key Responsibilities * Develop, maintain and optimise backend services using Java and Node.js * Build and deploy applications on AWS following best practices * Work within an Agile delivery team, contributing to sprints, ceremonies and code reviews * Collaborate with architects, product owners and other engineers to deliver high-impact features * Ensure code quality, security and performance are upheld * Support CI/CD processes, testing and automation - Essential Skills & Experience * Strong commercial experience with Java (core + modern frameworks)
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Job Title: Product Security Architect (Contract) Location: UK-based / Remote - Contract: 3 months initially, Outside IR35 - Why Apply? This is an opportunity to play a key role in shaping Product Security for an international technology organisation. The role offers exposure to a federated environment across multiple business units, providing strategic influence and hands on technical impact. * Define, lead, and evolve a group-wide Product Security and Secure SSDLC strategy across all business units. * Assess current AppSec capabilities, identify gaps, and implement practical, scalable improvements. * Collaborate with Product Architects, engineering, and security teams to integrate security into GitHub, CI/CD pipelines, and development workflows. * Provide architecture guidance and implement secure coding practices, threat modelling, and security tooling.
Job Title: Product Security Architect (Contract) Location: UK-based / Remote - Contract: 3 months initially, Outside IR35 - Why Apply? This is an opportunity to play a key role in shaping Product Security for an international technology organisation. The role offers exposure to a federated environment across multiple business units, providing strategic influence and hands on technical impact. * Define, lead, and evolve a group-wide Product Security and Secure SSDLC strategy across all business units. * Assess current AppSec capabilities, identify gaps, and implement practical, scalable improvements. * Collaborate with Product Architects, engineering, and security teams to integrate security into GitHub, CI/CD pipelines, and development workflows. * Provide architecture guidance and implement secure coding practices, threat modelling, and security tooling.
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Do you want your coding skills to make a real difference? Join a mission-driven tech-for-good organisation and help build websites and digital tools that positively impact communities. Were looking for a talented WordPress Developerto take ownership of digital platforms. Youll work on everything from themes and custom plugins to integrations and cloud-based solutions, ensuring the sites are fast, secure, and scalable. * Fully remote within the UK * Salary up to £50,000 * 33 days annual leave * Pension & healthcare * A role with genuine social impact * A supportive, mission-driven workplace * Professional development and clear career progression * Building and enhancing WordPress websites with clean, maintainable code * Collaborating with designers, content creators, and stakeholders to bring digital ideas to life
Do you want your coding skills to make a real difference? Join a mission-driven tech-for-good organisation and help build websites and digital tools that positively impact communities. Were looking for a talented WordPress Developerto take ownership of digital platforms. Youll work on everything from themes and custom plugins to integrations and cloud-based solutions, ensuring the sites are fast, secure, and scalable. * Fully remote within the UK * Salary up to £50,000 * 33 days annual leave * Pension & healthcare * A role with genuine social impact * A supportive, mission-driven workplace * Professional development and clear career progression * Building and enhancing WordPress websites with clean, maintainable code * Collaborating with designers, content creators, and stakeholders to bring digital ideas to life
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Espire Infolabs is hiring forJDA Dispatcher Developer for UK with 100% remote working - Job Title:JDA Dispatcher Developer - Job Type: Permanent - Job Location: 100% Remote - Job Description, Develop & maintain custom enhancements, interfaces, and extensions within the JDA Dispatcher WMS environment. Design & implement system configurations, rules changes and new functionalities to meet evolving business needs. Participating in the implementation of new JDA Dispatcher systems, including configuring the system based on business requirements and conducting user training. Working on integrating the JDA Dispatcher WMS with other systems like ERP, TMS, and material handling equipment (MHE). Analysing and troubleshooting technical problems related to the JDA Dispatcher WMS, including performance issues, integration problems, and user-related operational issues.
Espire Infolabs is hiring forJDA Dispatcher Developer for UK with 100% remote working - Job Title:JDA Dispatcher Developer - Job Type: Permanent - Job Location: 100% Remote - Job Description, Develop & maintain custom enhancements, interfaces, and extensions within the JDA Dispatcher WMS environment. Design & implement system configurations, rules changes and new functionalities to meet evolving business needs. Participating in the implementation of new JDA Dispatcher systems, including configuring the system based on business requirements and conducting user training. Working on integrating the JDA Dispatcher WMS with other systems like ERP, TMS, and material handling equipment (MHE). Analysing and troubleshooting technical problems related to the JDA Dispatcher WMS, including performance issues, integration problems, and user-related operational issues.
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QA Tester - Python/Gherkin/BDD - SC Cleared
QA Tester - Python/Gherkin/BDD - SC Cleared
Hays
UK
£450.0 - £500.0 per annum + £450 - £500 inside IR35
Your new company - One of the largest Public Sector Organisations in the UK managing trade - Your new role - What you'll need to succeed - We are supporting a client in seeking an experienced Quality Assurance (QA) contractor to help design, build, and operationalise robust testing capabilities across our web application stack. You will play a key role in ensuring the reliability, performance, and security of our systems, which include a Django/Wagtail CMS backend, microservices architecture, and a modern JavaScript/CSS frontend. You will develop and execute comprehensive test strategies, covering both manual and automated testing. This is a strategic and technical role, with a strong emphasis on quality uplift, process definition, and knowledge transfer across the team. You will be instrumental in validating deployments across multiple environments, supporting Agile
Your new company - One of the largest Public Sector Organisations in the UK managing trade - Your new role - What you'll need to succeed - We are supporting a client in seeking an experienced Quality Assurance (QA) contractor to help design, build, and operationalise robust testing capabilities across our web application stack. You will play a key role in ensuring the reliability, performance, and security of our systems, which include a Django/Wagtail CMS backend, microservices architecture, and a modern JavaScript/CSS frontend. You will develop and execute comprehensive test strategies, covering both manual and automated testing. This is a strategic and technical role, with a strong emphasis on quality uplift, process definition, and knowledge transfer across the team. You will be instrumental in validating deployments across multiple environments, supporting Agile
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Job Title: Full Stack Developer - Location: London, UK (Hybrid Work Mode) Job Type: Permanent - We are seeking a Full Stack Developer with strong experience in web application development, particularly focusing on the integration of Generative AI and Agentic Application models. You will play a key role in building and enhancing innovative solutions that leverage both advanced front-end and back-end technologies in a cloud environment. * Develop robust web applications integrating Generative AI and Agentic Application models. * Design and build scalable, responsive front-end interfaces. * Create and maintain efficient back-end systems and APIs. * Integrate AI frameworks into applications and support deployment in cloud environments. * Collaborate with DevOps teams to implement CI/CD pipelines and manage infrastructure.
Job Title: Full Stack Developer - Location: London, UK (Hybrid Work Mode) Job Type: Permanent - We are seeking a Full Stack Developer with strong experience in web application development, particularly focusing on the integration of Generative AI and Agentic Application models. You will play a key role in building and enhancing innovative solutions that leverage both advanced front-end and back-end technologies in a cloud environment. * Develop robust web applications integrating Generative AI and Agentic Application models. * Design and build scalable, responsive front-end interfaces. * Create and maintain efficient back-end systems and APIs. * Integrate AI frameworks into applications and support deployment in cloud environments. * Collaborate with DevOps teams to implement CI/CD pipelines and manage infrastructure.
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Location -We are flexible: onsite, hybrid or fully remote, depending on what works for you and the client, UK or Netherlands based. What you will actually be doing - This is not a role where you build clever models that never get used. Your focus is on creating measurable value for clients using data science, machine learning and GenAI, in a consulting and advisory context. You will own work from the very beginning, asking questions like "What value are we trying to create here?" and "Is this the right problem to solve?" through to "It is live, stakeholders are using it and we can see the impact in the numbers." You will work fairly independently and you will also be someone that more junior team members look to for help and direction. A big part of the job is taking messy, ambiguous business and technical problems and turning them into clear, valuable solutions that
Location -We are flexible: onsite, hybrid or fully remote, depending on what works for you and the client, UK or Netherlands based. What you will actually be doing - This is not a role where you build clever models that never get used. Your focus is on creating measurable value for clients using data science, machine learning and GenAI, in a consulting and advisory context. You will own work from the very beginning, asking questions like "What value are we trying to create here?" and "Is this the right problem to solve?" through to "It is live, stakeholders are using it and we can see the impact in the numbers." You will work fairly independently and you will also be someone that more junior team members look to for help and direction. A big part of the job is taking messy, ambiguous business and technical problems and turning them into clear, valuable solutions that
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Role: Developer - Tech Stack: .NET, C#, AWS, MongoDB - IR35 Status: Outside IR35 - Day Rate: £400.00 - Location: Remote - Contract Length: 3 Months (highly likely to extend to 6 Months+) Start Date: Immediate - We are seeking a Developer to join the agile delivery team supporting the development of a major government digital platform. You will be responsible for developing secure, performant, and maintainable features, working across both front-end and back-end elements of the system. This role is suitable for developers with a strong foundation in .NET and cloud-native engineering, and offers scope to grow technical ownership within a supportive, delivery-focused team. You'll be working in an environment that values collaboration, learning, and continuous improvement. Key Responsibilities * Design, build, test, and deploy robust software components using modern devel
Role: Developer - Tech Stack: .NET, C#, AWS, MongoDB - IR35 Status: Outside IR35 - Day Rate: £400.00 - Location: Remote - Contract Length: 3 Months (highly likely to extend to 6 Months+) Start Date: Immediate - We are seeking a Developer to join the agile delivery team supporting the development of a major government digital platform. You will be responsible for developing secure, performant, and maintainable features, working across both front-end and back-end elements of the system. This role is suitable for developers with a strong foundation in .NET and cloud-native engineering, and offers scope to grow technical ownership within a supportive, delivery-focused team. You'll be working in an environment that values collaboration, learning, and continuous improvement. Key Responsibilities * Design, build, test, and deploy robust software components using modern devel
Full Stack - Ruby on Rails, React - Up to £120k DOE - Fully Remote - must be UK based - A fast-growing sports tech company building high-performance, data-driven products for a rapidly expanding global audience is searching for a Lead Full Stack Engineer. This is a pivotal role for an experienced engineer who thrives on shaping architecture, driving technical direction, and still remaining hands-on in the codebase. As a technical leader within a cross-functional Product Team, you'll influence the long-term engineering strategy, guide architectural decisions, and ensure the platform scales reliably as our user base grows. You'll act as a role model for engineering excellence - mentoring others, elevating standards, and collaborating closely with Product, Design, and Customer Success to build tools our customers truly value. Tech Stack: Ruby on Rails, React, React Nativ
Full Stack - Ruby on Rails, React - Up to £120k DOE - Fully Remote - must be UK based - A fast-growing sports tech company building high-performance, data-driven products for a rapidly expanding global audience is searching for a Lead Full Stack Engineer. This is a pivotal role for an experienced engineer who thrives on shaping architecture, driving technical direction, and still remaining hands-on in the codebase. As a technical leader within a cross-functional Product Team, you'll influence the long-term engineering strategy, guide architectural decisions, and ensure the platform scales reliably as our user base grows. You'll act as a role model for engineering excellence - mentoring others, elevating standards, and collaborating closely with Product, Design, and Customer Success to build tools our customers truly value. Tech Stack: Ruby on Rails, React, React Nativ
Scala Developer - Remote Contract - Immediate Start
Scala Developer - Remote Contract - Immediate Start
Stealth IT Consulting Limited
UK
£380 per day £380 per day (Inside IR35)
Role Overview - We are seeking an experienced Scala Developer to join a dynamic team working on high-impact projects. The ideal candidate will have strong expertise in Scala and Play Framework, with a passion for building robust, scalable backend services and APIs. This is a fully remote contract role with an immediate start. Key Responsibilities * Design, develop, and maintain backend services and APIs using Scala and Play Framework. * Implement RESTful endpoints, manage request/response lifecycle, and handle authentication/authorization flows. * Write clean, idiomatic Scala code and apply functional programming principles where appropriate. * Develop and maintain automated tests (unit and integration) and support test automation initiatives. * Collaborate with product owners, UX designers, QA, and other engineers in an Agile environment (Scrum/Kanban).
Role Overview - We are seeking an experienced Scala Developer to join a dynamic team working on high-impact projects. The ideal candidate will have strong expertise in Scala and Play Framework, with a passion for building robust, scalable backend services and APIs. This is a fully remote contract role with an immediate start. Key Responsibilities * Design, develop, and maintain backend services and APIs using Scala and Play Framework. * Implement RESTful endpoints, manage request/response lifecycle, and handle authentication/authorization flows. * Write clean, idiomatic Scala code and apply functional programming principles where appropriate. * Develop and maintain automated tests (unit and integration) and support test automation initiatives. * Collaborate with product owners, UX designers, QA, and other engineers in an Agile environment (Scrum/Kanban).
Full Stack - Ruby on Rails, React - Up to £120k DOE - Fully Remote - must be UK based - A fast-growing sports tech company building high-performance, data-driven products for a rapidly expanding global audience is searching for a Lead Full Stack Engineer. This is a pivotal role for an experienced engineer who thrives on shaping architecture, driving technical direction, and still remaining hands-on in the codebase. As a technical leader within a cross-functional Product Team, you'll influence the long-term engineering strategy, guide architectural decisions, and ensure the platform scales reliably as our user base grows. You'll act as a role model for engineering excellence - mentoring others, elevating standards, and collaborating closely with Product, Design, and Customer Success to build tools our customers truly value. Tech Stack: Ruby on Rails, React, React Nativ
Full Stack - Ruby on Rails, React - Up to £120k DOE - Fully Remote - must be UK based - A fast-growing sports tech company building high-performance, data-driven products for a rapidly expanding global audience is searching for a Lead Full Stack Engineer. This is a pivotal role for an experienced engineer who thrives on shaping architecture, driving technical direction, and still remaining hands-on in the codebase. As a technical leader within a cross-functional Product Team, you'll influence the long-term engineering strategy, guide architectural decisions, and ensure the platform scales reliably as our user base grows. You'll act as a role model for engineering excellence - mentoring others, elevating standards, and collaborating closely with Product, Design, and Customer Success to build tools our customers truly value. Tech Stack: Ruby on Rails, React, React Nativ
Lead .NET/C# Developer - 12 Month Remote Contract (Inside IR35)
Lead .NET/C# Developer - 12 Month Remote Contract (Inside IR35)
Stealth IT Consulting Limited
UK
£475 per day £475 per day (Inside IR35)
Azure API Management
Azure API Management
Senior Software Developer (BPSS Cleared) – SFIA Level 5 (Remote UK)
Senior Software Developer (BPSS Cleared) – SFIA Level 5 (Remote UK)
Stealth IT Consulting Limited
UK
£450 per day £450 per day (Inside IR35)
Configure API gateways and reverse proxies with Kong (CE/EE) and Nginx.
Configure API gateways and reverse proxies with Kong (CE/EE) and Nginx.
Senior Software Developer (BPSS Cleared) - Contract (Remote UK)
Senior Software Developer (BPSS Cleared) - Contract (Remote UK)
Stealth IT Consulting Limited
UK
£380 per day £380 per day
Configure and manage API gateways and reverse proxies using Kong (CE/EE) and Nginx.
Configure and manage API gateways and reverse proxies using Kong (CE/EE) and Nginx.
The ideal candidate will have strong experience in API development, microservices architecture, CI/CD pipelines, and containerization. Additional Skills: API development, microservices, CI/CD pipelines, containerization (Docker/Kubernetes), Leadership, Greenfield development experience
The ideal candidate will have strong experience in API development, microservices architecture, CI/CD pipelines, and containerization. Additional Skills: API development, microservices, CI/CD pipelines, containerization (Docker/Kubernetes), Leadership, Greenfield development experience
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Familiarity with API testing, SQL queries, and data migration testing.
Familiarity with API testing, SQL queries, and data migration testing.
Implement cloud-native applications leveraging AWS services including Lambda, API Gateway, and S3. * Hands-on experience with AWS serverless services (Lambda, API Gateway, SQS/SNS, Step Functions, S3). * Take ownership of key microservices or API features within your product area.
Implement cloud-native applications leveraging AWS services including Lambda, API Gateway, and S3. * Hands-on experience with AWS serverless services (Lambda, API Gateway, SQS/SNS, Step Functions, S3). * Take ownership of key microservices or API features within your product area.
Build your future with Sovos. If you're seeking a career where innovation meets impact, you've come to the right place. As a global leader, Sovos is transforming tax compliance from a business requirement to a force for growth while revolutionising how businesses navigate the ever-changing regulatory landscape. At Sovos, we're dedicated to more than just solving compliance challenges we're committed to making a positive and lasting difference in everything we do. Our teams operate on the modern edge of digital technology, working not only to solve complex business challenges but also to enrich our personal, professional, and local communities. Our purpose-built systems provide the tools you need to thrive in a world where governments demand increased visibility, faster reporting and greater control over business processes. Excited about the possibilities? So are we!
Build your future with Sovos. If you're seeking a career where innovation meets impact, you've come to the right place. As a global leader, Sovos is transforming tax compliance from a business requirement to a force for growth while revolutionising how businesses navigate the ever-changing regulatory landscape. At Sovos, we're dedicated to more than just solving compliance challenges we're committed to making a positive and lasting difference in everything we do. Our teams operate on the modern edge of digital technology, working not only to solve complex business challenges but also to enrich our personal, professional, and local communities. Our purpose-built systems provide the tools you need to thrive in a world where governments demand increased visibility, faster reporting and greater control over business processes. Excited about the possibilities? So are we!
Proven experience with API development and integration
Proven experience with API development and integration
Understanding of DevOps practices , cloud infrastructure automation (Terraform, Ansible), and scalable API architectures.
Understanding of DevOps practices , cloud infrastructure automation (Terraform, Ansible), and scalable API architectures.
Related Jobs
Locations
- Shoreditch
- The City, City (EC2)
- The City, City (EC3)
- Hinxton
- Ireland
- Southwark
- The City, City (EC4)
- Arundel Heights
- Bloomsbury
- Datchet Common
- City of London
- Central London
- West End
- Cambridge
- Milton Keynes
- East London
- South East London
- North West London
- Northampton
- Stevenage
- London
- Cambridgeshire
- Buckinghamshire
- Essex
- Hertfordshire
- Bedfordshire
- Northamptonshire
- Berkshire
- Norfolk
- South East
- East Anglia
- East Midlands
- Midlands