LA International Computer Consultants Ltd
Senior React Developer
Senior React Developer on an initial 6-month remote contract (UK), £300–£350 per day via umbrella, requiring security clearance. Day to day: building responsive, accessible web apps with React and TypeScript, integrating REST APIs, and supporting CI/CD and automated testing; Pega Constellation experience is desirable.
- Compensation
- £300–£350 / day
- Location
- United Kingdom
- Work setup
- Not specified
- Seniority
- Senior
- Employment
- Contract
- Experience
- Not specified
- Category
- Frontend
- Posted
Skills
Must have
- At least five years of commercial experience developing modern web applications
- Strong practical expertise in React and TypeScript
- Excellent knowledge of JavaScript including modern ES6+ features and patterns
- Experience with HTML5, CSS3, SASS and responsive UI design
- Experience consuming RESTful APIs and JSON-based services
- Familiarity with front-end tooling such as Vite, Webpack, npm and Git
- Experience with automated testing frameworks such as Jest, React Testing Library or Cypress
- Sound understanding of secure software development and common front-end security risks
- Experience working in Agile or Scrum delivery environments
- Strong communication, collaboration and problem-solving skills
- Holds or has held high-level security clearance; must be security cleared prior to appointment
Nice to have
- Experience with Pega Platform, Pega Constellation, Pega DX API or Pega Customer Service
- Experience extending model-driven or API-driven user experiences while preserving platform standards
- Experience building component libraries or contributing to enterprise design systems
- Knowledge of Azure, AWS or other cloud-native architectures
- Experience with GraphQL, micro-frontends or composable front-end architectures
- Understanding of low-code platforms, case management, CRM or workflow solutions
- Experience delivering services in regulated sectors (government, healthcare, financial services, insurance, transport)
- Practical knowledge of WCAG 2.1 AA accessibility requirements
Full description
*SC - Security Cleared* Senior React Developer 6 Month contract initially + Extensions Based: Remote Rate - £300 - £350 p/d via Umbrella We have a great opportunity with a world leading organisation where you will be provided with all of the support and development to succeed. A progressive organisation where you can really make a difference. We have a great opportunity for a Senior React Developer on a long term program of work.
Key responsibilities
- * Design and develop responsive, accessible and high-performing web applications using React and TypeScript.
- * Build reusable UI components, design patterns and shared Front End libraries.
- * Integrate Front End applications with REST APIs and enterprise Back End services.
- * Work with UX and design teams to deliver intuitive user experiences aligned with enterprise design systems.
- * Implement appropriate approaches to state management, routing, authentication and application security.
- * Contribute to solution design, technical architecture reviews, estimation and delivery planning.
- * Collaborate with Pega delivery teams to configure, extend or integrate Constellation-based user experiences where required.
- * Ensure solutions meet agreed standards for performance, accessibility, scalability, maintainability and security.
- * Support CI/CD pipelines, automated testing and DevOps practices.
- * Mentor less experienced developers and help establish engineering standards and reusable practices.
Key Skills & Experience
- * At least five years of commercial experience developing modern web applications.
- * Strong practical expertise in React and TypeScript.
- * Excellent knowledge of JavaScript, including modern ES6+ features and patterns.
- * Experience with HTML5, CSS3, SASS and responsive user interface design.
- * Experience consuming RESTful APIs and JSON-based services.
- * Familiarity with contemporary Front End tooling such as Vite, Webpack, npm and Git.
- * Experience with automated testing frameworks such as Jest, React Testing Library, Cypress or equivalent.
- * Sound understanding of secure software development and common Front End security risks.
- * Experience working in Agile or Scrum delivery environments.
- * Strong communication, collaboration and problem-solving skills.
Desirable
- * Experience with Pega Platform, Pega Constellation, Pega DX API or Pega Customer Service.
- * Experience extending model-driven or API-driven user experiences while preserving platform standards and upgradeability.
- * Experience building component libraries or contributing to enterprise design systems.
- * Knowledge of Azure, AWS or other cloud-native architectures.