Front-End Developer - Hybrid

Frontend Developer – Hybrid

The salary on offer for this role is £55,000 - £65,000 per annum

Hybrid – Enfield, London – 3 days per week

We’re seeking a Frontend Developer to join our client’s team to build and maintain the development and upkeep of their e-commerce user interface. This role is key to delivering a unified, high-performance customer experience across all channels. Proficiency in modern JavaScript frameworks, client-side security, and mobile deployment techniques is required.

Responsibilities & Skills

Develop and maintain high-quality, responsive user interfaces for web and mobile using HTML5, JavaScript (ES6+), and advanced CSS. Create reusable components and design systems to ensure consistency, accessibility, and scalability across all digital channels. Apply modern styling techniques (CSS Grid, Flexbox, SASS/LESS) and optimise performance for Core Web Vitals. Build and deploy cross-platform mobile applications (iOS & Android) using frameworks such as React Native or Flutter. Implement secure authentication flows, protect against common vulnerabilities (XSS, CSRF), and adhere to OWASP best practices. Integrate e-commerce tools and APIs (e.g., Klaviyo, Yotpo) for personalised content and loyalty features. Manage complex application state using libraries like Redux or Context. Ensure robust testing through unit, integration, and end-to-end automation.

Interested? Please submit your updated CV to Emma Siwicki at Crimson for immediate consideration. Not interested? Do you know someone who might be a perfect fit for this role? Refer a friend and earn £250 worth of vouchers!

Crimson is acting as an employment agency regarding this vacancy