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# Senior Frontend Engineer (Web & App)

- **Company:** Quantum
- **Location:** Maidstone, UK
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** Automation of Tests, Python (Programming Language), TypeScript, ReactJS, Backend, React Native, Front End Software Development
- **Published:** August 4, 2026
- **Apply:** https://uk.indeed.com/viewjob?jk=4a20b4d6456e46f0

## About the Role

* A strong senior frontend engineer, production-grade with React and TypeScript on the web
 * Hands-on building and shipping mobile apps, ideally React Native across iOS and Android
 * A sharp eye for UX and design: you care how a product feels, not just whether it works
 * Comfortable owning end-to-end and staging test automation as part of how you ship
 * Happy working across the stack, with Python a strong plus rather than a hard requirement
 * You thrive when working as part of a team
 * Comfortable in a fast-paced environment
 * Have excellent written and verbal English skills
 * Last but not least, you'll have no ego!

## Description

Our Rewards Tech team is growing! We're looking for a Senior Frontend Engineer to join our team in Maidstone.

In this role you will own the frontend across our Cashback and Custard apps and websites, shipping new functionality that moves revenue, hardening our release pipeline with automated testing, and raising the bar on how our reward products look and feel., * Own the frontend across the Cashback and Custard apps and websites, from build through to release

 * Ship new app functionality that moves revenue and retention, working closely with product and backend
 * Build and maintain automated end-to-end tests so staging is stable and releases are predictable
 * Raise the standard of web and app UX across both reward brands
 * Work full stack where it counts, partnering with our backend developers on the Python services behind the apps


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