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Lead React Full Stack Developer

Ltm Larsenandtoubrocompany — United Kingdom · Posted ~2 days ago

Lead Contract Onsite

Skills

React TypeScript PostgreSQL JavaScript HTML CSS Frontend Architecture System Design Accessibility Responsive Design Code Review Testing CI/CD

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Summary

A technology organization is seeking an experienced React engineering leader to design, build, and maintain high-quality web experiences. You will own frontend architecture, create reusable components, improve existing systems, support junior engineers, and collaborate across product, design, backend, and quality teams. Strong React, TypeScript, PostgreSQL, accessibility, responsive design, testing, and engineering leadership skills are required.

Highlights

Lead a frontend team while owning architecture and system design for complex, accessible web applications. The role offers hands-on engineering, mentoring, cross-functional collaboration, and influence over engineering standards.

Description

Role Description React Full stack Lead Developer Sheffield, UK 6 Months Contract Skills: react, Typescript and PostgreSQL As a Senior React Developer you will design build and maintain the user facing parts of web applications creating interactive accessible and visually appealing experiences.You will take ownership of frontend architecture and system design decisions ensuring the application performs reliably across devices and browsers while meeting high standards for usability accessibility and maintainability.You will also act as POD lead and supporting Junior react developer. Responsibilities Lead the design and development of complex React-based user interfaces using modern JavaScript/TypeScript, HTML, and CSS.Own frontend system design for key journeys, balancing performance, accessibility, security, scalability, and developer experience.Build reusable component libraries and patterns to drive consistency across products and teams.Improve existing codebases by debugging issues, enhancing layouts, and adding new functionality with high-quality engineering practices.Ensure cross-browser and responsive behaviour across desktop and mobile devices.Champion accessibility (e.g., semantic HTML, keyboard navigation, ARIA where appropriate) and inclusive design practices.Collaborate closely with product, UX/UI, backend engineers, and QA to deliver seamless end-to-end experiences.Drive code quality through reviews, testing strategies, and CI/CD best practices.Mentor engineers and contribute to engineering standards, documentation, and ways of working.