Senior Front-End Developer – JavaScript/TypeScript/React

About the role

We are seeking a Senior Front‑End Developer to architect, build, and evolve user‑facing features for a modern point‑of‑sale experience deployed across client retail environments. In this role you will drive technical initiatives, mentor peers, and partner with cross‑functional stakeholders to deliver robust UI components and high‑quality releases at scale.

Key responsibilities

• Architect, build, and maintain scalable frontend components and shared libraries using React, JavaScript, and TypeScript.
• Drive delivery of complex user‑facing features from technical design through release, aligned with product strategy.
• Define testing strategies and implement comprehensive unit, integration, and regression tests with React Testing Library.
• Lead the adoption and extension of Material UI to establish consistent, accessible, and reusable UI patterns.
• Partner closely with backend engineers to design API contracts, integrate services, and optimise end‑to‑end flows.
• Lead code reviews, define engineering standards, and champion best practices.
• Own the stability of a high‑availability, store‑ready application by proactively identifying and resolving defects, performance bottlenecks, and technical debt.
• Mentor mid‑level engineers and contribute to the technical growth of the team.

Required profile

• 3+ years of hands‑on experience with JavaScript, React, and TypeScript, including delivery of production‑grade applications.
• Proven experience with Anthropic Claude Code or similar AI‑assisted development tools and ability to integrate them into daily workflows.
• Strong architectural thinking and ability to make sound technical decisions in ambiguous environments.
• Demonstrated cross‑functional leadership working effectively with backend, product, and design partners.

Required skills

• JavaScript
• React
• TypeScript
• Material UI
• React Testing Library
• Anthropic Claude Code (AI‑assisted development)
• API contract design
• New Relic (monitoring and performance analysis)
• Java (nice to have)
• Spring Boot (nice to have)

What we offer

• International projects with top brands.
• Work with global teams of highly skilled, diverse peers.
• Healthcare benefits.
• Employee financial programs.
• Paid time off and sick leave.
• Upskilling, reskilling and certification courses, unlimited LinkedIn Learning access.
• Global career opportunities and volunteer/community involvement.
• Award‑winning culture recognised by Glassdoor, Newsweek and LinkedIn.