Senior Front-End Engineer - React / Nx (Contract)
Posted 5 days ago by Experis
£475 Per day
Outside
Remote
Derby, England, United Kingdom
Summary: The Senior Front-End Engineer role focuses on developing and scaling a modular product platform using React.js and Nx monorepos. This contract position requires expertise in building performant web applications and supporting React Native mobile apps. The engineer will work within a high-performing team to enhance developer experience and ensure cross-platform consistency. The role is remote with occasional on-site days and has a contract duration of 9-12 months, starting in October 2025.
Key Responsibilities:
- Deliver and maintain a scalable Nx monorepo architecture for web.
- Drive the React.js web platform, ensuring performance and maintainability.
- Establish white-labelling workflows (branding, theming, config-driven setup).
- Ensure plug-and-play feature modules can be reused across apps.
- Improve developer experience: onboarding, codegen, CI/CD, automation.
- Ensure analytics, monitoring, and testing practices are embedded across projects.
Key Skills:
- Strong hands-on development experience in React.js, with ownership of large-scale web app.
- Strong Nx monorepo experience (or similar tooling in production).
- Proficient in TypeScript and modern JS (ES6+).
- Proven track record of web performance optimisation.
- Strong testing discipline (Jest, React Testing Library, MSW).
- Experience with white-labelled SaaS platforms (desirable).
- Knowledge/experience of internationalisation (desirable).
- Mobile/web parity experience (React Native support) (desirable).
Salary (Rate): £475/day
City: Derby
Country: United Kingdom
Working Arrangements: remote
IR35 Status: outside IR35
Seniority Level: Senior
Industry: IT
Senior Front-End Engineer - React / Nx (Contract)
Location: Remote with occasional day on site
Contract Type: 9–12 months (with potential extension)
Start Date: October 2025
Rate: up to £475/day
IR35: Outside
We’re looking for a Senior Front-End Engineer with expertise in React.js and strong experience with Nx monorepos to help design, build, and scale our clients modular product platform. This is a web-first role , focused on building performant, scalable React.js applications within an Nx monorepo architecture. You’ll also support React Native mobile apps, ensuring cross-platform consistency and enabling white-labelling capabilities. You’ll be joining a high-performing engineering team working on a plug-and-play platform.
Key Outcomes
- Deliver and maintain a scalable Nx monorepo architecture for web.
- Drive the React.js web platform, ensuring performance and maintainability.
- Establish white-labelling workflows (branding, theming, config-driven setup).
- Ensure plug-and-play feature modules can be reused across apps.
- Improve developer experience: onboarding, codegen, CI/CD, automation.
- Ensure analytics, monitoring, and testing practices are embedded across projects.
Skills & Experience
Essential:
- Strong hands-on development experience in React.js, with ownership of large-scale web app
- Strong Nx monorepo experience (or similar tooling in production).
- Proficient in TypeScript and modern JS (ES6+).
- Proven track record of web performance optimisation.
- Strong testing discipline (Jest, React Testing Library, MSW).
Desirable:
- Experience with white-labelled SaaS platforms.
- Knowledge/experience of internationalisation.
- Mobile/web parity experience (React Native support).
Apply now or reach out for more details.