React Lead Developer

LTM; Sheffield; On-site; GBP 65,000 - 90,000; Full time

Job summary

LTM in Sheffield, UK is seeking a Senior React Developer to lead the full-stack frontend for mission-critical web applications. You will own frontend architecture, drive performance, accessibility, and maintainability while collaborating with product, UX/UI, and backend teams.

As POD lead you will mentor junior developers, establish coding standards, and steer CI/CD practices to deliver robust, scalable interfaces across devices.

Qualifications

• Experience leading frontend architecture and delivering scalable React apps.
• Strong design for accessibility and cross-browser compatibility.
• Proven ability to mentor junior developers.

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 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.

Skills

React

TypeScript

PostgreSQL

Job 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.