Design Engineer (Mobile/Frontend) — Early-Stage FinTech, London, Remote, Up to a £110k base

Design Engineer (Mobile/Frontend) — Early-Stage FinTech, London, Remote, Up to a £110k base

I’m supporting a fast-growing startup in the consumer finance space that’s building a new kind of credit experience. They’re small, ambitious, and looking for someone who’s excited about owning big pieces of product from day one.

The team is looking for a Design Engineer who can help shape their mobile app and overall user experience. If you enjoy working closely with design, turning complex flows into something incredibly simple for users, and being part of a product still early in its journey, this could be a great fit.

What you’ll be working on:

• Taking the lead on their React Native app across iOS and Android
• Building and integrating with backend APIs
• Setting up CI/CD, testing, monitoring, and general production-ready infrastructure
• Handling sensitive data securely (auth, KYC/AML)
• Improving app performance and reliability
• Collaborating closely with design and product to create a polished, user-first experience
• Jumping into other parts of the stack when needed

What they’re looking for:

• Startup experience is important — someone comfortable owning problems end-to-end
• Strong background in React Native & React
• Experience with consumer-facing products
• Familiarity with BFF patterns and Node.js APIs
• Comfortable shipping to the App Store / Google Play
• Production experience at scale
• Good debugging habits and attention to detail

Nice bonuses:

• Native mobile (Swift/Kotlin)
• Any exposure to Web3 or on-chain interactions
• A strong design/UX sense

What’s on offer:

• Competitive salary + meaningful equity
• Flexible setup (remote or London)
• Team trips, events, and conferences
• The opportunity to help build something genuinely new in consumer credit