Senior Frontend Engineer: Web & Mobile Apps (Hybrid)

Quantum

Loose

On-site

GBP 70,000 - 95,000

Full time

7 days ago

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Benefits offered by this job

Private Health Care (Bupa)

Hybrid Working (3 days in office)

Travel Insurance

Company Bonus Scheme

AI Subscription (Claude / ChatGPT /Gem

Market-Leading Training Programme

Recognition & Reward Scheme

Annual Company Conference

Regular Happy Hours & Team Lunches

Free Coffee, Drinks & Snacks

Job summary

Quantum is seeking a Senior Frontend Engineer to own the frontend across our Cashback and Custard apps and websites, delivering new functionality that drives revenue and retention. You will collaborate with product and backend teams, and lead end-to-end test automation to ensure stable releases.

You should have strong React and TypeScript skills for web, plus hands-on React Native experience for mobile apps.

Qualifications

Senior frontend engineer with React and TypeScript on the web.
Experience shipping mobile apps with React Native (iOS/Android).
Strong UX focus and product feel.
End-to-end test automation ownership.
Comfortable with Python as a plus.
Team player who shares knowledge and learns from others.
Able to thrive in a fast-paced environment.
Excellent written and verbal communication.

Responsibilities

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.