14 of 14 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 ...

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 ...

Principal DevOps Engineer

Hiring Organisation
Hays Technology
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£644/day £644 p/d Inside IR35
management experience. - Experience supporting secure, business-critical services. - GitLab, PostgreSQL, NGINX, VPN/OpenVPN, Elastic/Kibana and Windows administration. Desirable - C#, .NET, JavaScript, React, Vue.js and microservices. - AWS SageMaker, AI/LLM integrations and Python-based analytics tooling. - Enterprise cloud architecture and secure-by-design principles. - Disaster recovery ...

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 ...

Senior Frontend Developer

Hiring Organisation
Rullion Managed Services
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£650 - £700/day
Senior Frontend Developer (React Native) 6 Month contract 40 hours per week Inside IR35 Hybrid 1 office day London Farringdon office address: 47-53 Charterhouse St, London, EC1M 6PB About the Role We are looking for a highly experienced Senior Frontend Engineer to join a fast-paced and innovative engineering … runbooks, and operational processes. Mentor and support engineers through coaching, code reviews, and technical guidance. Required Skills & Experience Technical Skills Expert-level knowledge of React , TypeScript , and modern frontend architectures. Strong understanding of React internals, Server Components, and modern React frameworks including js . Deep expertise in state management ...

Software Engineer

Hiring Organisation
Brio Digital
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£480 - £500/day
expertise. Software Engineer Key Responsibilities: Design, develop and maintain enterprise-grade applications using .NET technologies Build and enhance responsive front-end applications using React and TypeScript Develop secure RESTful APIs and backend services Work within Azure-native environments, leveraging cloud-first architecture principles Collaborate with Product Owners, Architects, DevOps … Essential Skills & Experience Backend Strong commercial experience with: C# .NET/.NET Core ASP.NET Core REST API development SQL Server Frontend Strong experience with: React TypeScript JavaScript HTML5 CSS3 Cloud & DevOps Strong Azure experience CI/CD pipelines Infrastructure and deployment best practices Apply now or email for more information. ...

Junior Software Engineer

Hiring Organisation
Randstad Technologies Recruitment
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
£160 - £170/day
grow their skills while working alongside experienced engineers. Key Skills Required 1+ year commercial full-stack development experience Node.js & TypeScript - hands-on experience React or Angular - frontend development Experience building RESTful APIs Experience with Git/version control Knowledge of unit and integration testing Understanding of Agile/Scrum Good … communication and teamwork skills Willingness to learn and work under senior engineers What You'll Do Develop frontend features using React or Angular Build backend services and APIs using Node.js & TypeScript Integrate applications with APIs and data stores Write and maintain automated tests Participate in Agile ceremonies and code reviews ...

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 ...

Contract - Senior CXE Engineer - Amazon Connect

Hiring Organisation
INNOVATIVE TECH PEOPLE LTD
Location
City of London, London, United Kingdom
Employment Type
Contract, Work From Home
majority of your time in code and in the AWS console: building contact flows and AI agents, writing Lambda functions and CDK stacks, developing React-based agent and admin tooling, and debugging production issues on systems that serve tens of thousands of agents and millions of customer interactions. You work … plus LLM-based development (Amazon Bedrock, Q in Connect, or equivalent), including prompt engineering and tool calling Strong TypeScript/Node.js and Python; production React experience; solid AWS serverless engineering (Lambda, EventBridge, API Gateway, DynamoDB, Step Functions, Kinesis) Infrastructure as code proficiency with AWS CDK or Terraform, including multi-account ...

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 Developer

Hiring Organisation
CBSbutler Holdings Limited trading as CBSbutler
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£500 - £525/day
secure, technically complex applications. You'll be responsible for developing and maintaining full-stack solutions, using Python (Flask) on the backend and JavaScript (React) on the frontend. Key skills: Strong Python development experience Hands-on experience with Flask JavaScript & React REST API development and integration Full-stack application development Agile ...

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/ ...