17 of 17 Contract React Jobs in London

Senior C# .Net Developer

Hiring Organisation
ARM
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£500/day Umbrella Inside IR35
capability Good stakeholder communication Desirable Banking, Capital Markets or Financial Services Azure Docker/Kubernetes Kafka, RabbitMQ or Azure Service Bus Event-driven architectures React/Angular Cloud-native development Application observability and performance engineering DevSecOps and secure coding Preferred Stack C# | .NET Core/.NET 8 | ASP.NET Core | REST ...

Java Developer

Hiring Organisation
Denizns Ltd
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£400/day
/PostgreSQL, plus MongoDB or another document database Cloud experience (AWS, Azure or GCP) Working knowledge of Linux/Unix Nice to have Angular, React, Node.js or JavaScript Keycloak, Kafka or ActiveMQ, Mockito, Jackson, JAX-RS Experience with high-traffic sites or large data sets How to apply Apply with ...

Full Stack Engineer

Hiring Organisation
DCV Technologies
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£400 - £450/day Hybrid / Inside IR35
knowledge of HTML5, CSS3, and JavaScript (ES6+). • Commercial experience building applications with React.js. • Experience with component-based architecture and state management using: o React Hooks o Redux o Context API o NgRx • Experience developing responsive, cross-browser compatible user interfaces. Security & Data • Experience implementing authentication and authorization solutions using ...

Principle Engineer

Hiring Organisation
Sanderson Government and Defence
Location
London, United Kingdom
Employment Type
Contract
absence of other senior engineering leaders. Experience operating within Agile and DevOps delivery models. Desirable Skills: Application & Integration Technologies C# .NET Entity Framework JavaScript React Vue.js Windows Presentation Foundation (WPF) REST APIs Microservices architecture AI & Data Technologies AWS SageMaker Large Language Model (LLM) integrations AI-assisted analytics solutions Python-based ...

Full Stack Engineer

Hiring Organisation
Gazelle Global Consulting Ltd
Location
City of London, London, United Kingdom
Employment Type
Contract, Work From Home
development skills, ideally with Spring and Spring Boot. Solid HTML5, CSS3 and modern JavaScript (ES6+). Practical experience building applications with React. Understanding of React Hooks, Redux, Context or similar state management approaches. Experience developing RESTful APIs and implementing MVC architecture and design patterns. Knowledge of authentication and authorisation, including ...

Principal Forward Deployed Engineer

Hiring Organisation
VIQU IT
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£600 - £700/day
GitLab CI/CD, Docker and container orchestration • Deploying across Kubernetes, OpenShift, VMs, bare metal, on-premises and sovereign cloud • Full stack: TypeScript, Node.js, React, Next.js, PostgreSQL • Security engineering, test strategy and accreditation-grade documentation • Confident leading technical engagements with senior stakeholders, with a pragmatic, high-ownership delivery mindset Desirable ...

L1 Software Engineer

Hiring Organisation
Response Informatics
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
Up to £250 per day
Required Skills Frontend React.js REST API troubleshooting JavaScript/TypeScript basics Backend Python FastAPI REST APIs Postman/Swagger Cloud AWS (EC2, Lambda, S3, CloudWatch, API Gateway, IAM) Support Incident & ticket management (ServiceNow/Jira) Log analysis and application troubleshooting Qualifications Bachelor's degree in Computer Science, IT, or related ...

Functional Analyst / Full Stack Developer

Hiring Organisation
PROJECTING LTD
Location
City of London, London, United Kingdom
Employment Type
Contract, Work From Home
Contract Rate
Up to £432 per day
Software Developer on projects of similar complexity. Experience working within the banking or financial services industry. Proven Full Stack development experience, including: React (Front End) Python (Back End) Strong SQL skills. Ability to understand business needs and translate them into technical solutions. English language proficiency at B1 level or above ...

Machine Learning and AI Developer

Hiring Organisation
Experis
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£600 - £686 per day
mentorship/coaching is strongly preferred. A willingness and demonstrated ability in these domains are sufficient. Some experience with frontend software development (e.g. React, Vue) If you receive suspicious outreach claiming to be from us, please contact us via the ManpowerGroup website. ...

Senior Full Stack Developer

Hiring Organisation
GCS
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£550 - £600/day
Senior Full Stack Developer (React, Python & Azure AI) Location: London/Hybrid Start: ASAP About the Opportunity We are seeking an experienced Senior Full Stack Developer to join a cutting-edge programme focused on delivering AI-powered solutions on Microsoft Azure. This initial workstream is dedicated to building an Agentic … teams to deliver scalable, secure, and high-performing solutions in Azure environments. Key Responsibilities Design, develop, and maintain scalable full-stack applications using React, Python, JavaScript, and TypeScript Build responsive, high-performance front-end solutions capable of handling large data volumes Develop and integrate APIs, microservices, and distributed systems Deploy ...

Full Stack Software Developer

Hiring Organisation
DCV Technologies Limited
Location
City of London, London, United Kingdom
Employment Type
Contract, Work From Home
Contract Rate
Up to £450 per day Hybrid / Inside IR35
injection. Experience building and maintaining RESTful APIs . Frontend Development Strong knowledge of HTML5, CSS3, and JavaScript (ES6+) . Commercial experience building applications with React.js . Experience with component-based architecture and state management using: React Hooks Redux Context API NgRx Experience developing responsive, cross-browser compatible user interfaces. Security ...

Senior Frontend developer

Hiring Organisation
Rullion Managed Services
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
£650 - £700/day
systems as part of ongoing platform transformation projects. Responsibilities include: Taking ownership of frontend feature delivery from design through to production Building and maintaining React and Next.js applications Developing clean, scalable, and well-tested TypeScript code Supporting the migration and modernisation of existing frontend platforms Working with shared component libraries … mentoring less experienced developers Collaborating with Product, Design, Backend and Platform teams Making pragmatic technical decisions that balance delivery, quality, and maintainability Technology Stack React Next.js (App Router) TypeScript Tailwind CSS Component Design Systems Playwright Jest Vitest Git-based CI/CD pipelines Monitoring and observability tools Cloud-based infrastructure ...

Full Stack Engineer - Front End - AI

Hiring Organisation
GCS
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£550 - £551/day
Role Description We are seeking a highly skilled Senior Fullstack Developer with deep expertise in React and strong experience deploying applications to cloud platforms, ideally Microsoft Azure (AWS experience also welcome). This role will focus on building, deploying, and optimising scalable, high-performance web applications that handle large volumes … cloud specialists, and AI teams to deliver intelligent, production- ready applications at scale. Key Responsibilities Design, build, and maintain scalable front-end applications using React, python and modern JavaScript/TypeScript. Build front-end solutions that support high data throughput, performance optimisation, and responsiveness at scale. Collaborate on the deployment ...

Full Stack Engineer (Agentic AI)

Hiring Organisation
GCS
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£500 - £501/day
foundations, architecture, and product direction for the wider programme. Role Description We are seeking a highly skilled Senior Fullstack Developer with deep expertise in React and strong experience deploying applications to cloud platforms, ideally Microsoft Azure (AWS experience also welcome). This role will focus on building, deploying, and optimising … cloud specialists, and AI teams to deliver intelligent, production- ready applications at scale. Key Responsibilities Design, build, and maintain scalable front-end applications using React, python and modern JavaScript/TypeScript. * Build front-end solutions that support high data throughput, performance optimisation, and responsiveness at scale. * Collaborate on the deployment ...

Senior Frontend Developer

Hiring Organisation
Rullion Managed Services
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
£650/day
Senior Frontend Developer (React) 6 Month contract 40 hours per week Inside IR35 Hybrid 1 office day London Farringdon office address: 47-53 Charterhouse St, London, EC1M 6PB We are seeking a talented and motivated Senior Frontend Developer with strong expertise in TypeScript and React to join our growing development … team. In this role, you will work on building high-quality, scalable, and responsive web applications using React and TypeScript. You will collaborate closely with cross-functional teams to deliver exceptional user experiences, optimize performance, and contribute to the overall architecture of our platform. Initially it will ...

Full stack Engineer

Hiring Organisation
DCV Technologies
Location
London, United Kingdom
Employment Type
Contract
Java/Python skills with Spring and Spring Boot - Frontend fundamentals: Strong HTML5, CSS3, and JavaScript (ES6+) - Modern frontend framework: Hands-on experience with React Js - Component architecture and state: Component-based design and state management (React Hooks, Redux, Context, or NgRx) - Responsive UI: Building responsive, cross-browser compatible applications ...

Forward Deployed Engineer

Hiring Organisation
Randstad Digital
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
£60 - £62 per hour
Forward Deployed Engineer (AI & Full-Stack) Remote (UK-based) 6-Month Initial Contract £60 per hour (Umbrella) Inside IR35 Stack: Go, React/TypeScript, GCP (Cloud Run, Pub/Sub), PostgreSQL, Automated AI Workflows A well established firm is looking for a hands-on Forward Deployed Engineer to join … Build and maintain backend services, messaging tools, and database routines in Go. Update the User Interface: Make targeted updates to screens and forms using React and TypeScript so clients can see and use new features. Connect Existing Software: Plug our system into standard client software (like SAP, Microsoft Teams/ ...