React Native Developer

Senior React Native Developer - 300K Salary - Onsite - London

You will be working on building the next-generation crypto launchpad and trading/social platform — but with stronger security, better UX, and features to expand the community’s reach

What You’ll Do

  • Build, maintain, and iterate on a cross-platform mobile app using React Native
  • Integrate with blockchain / crypto backends (Solana RPC, wallet connectors, Web3 APIs)
  • Implement real‑time features: live updates, WebSockets, subscription streams
  • Handle in-app state management, offline caching, synchronization, data persistence
  • Ensure high performance, smooth animations, responsiveness even under high load
  • Participate in code reviews, mentoring, architectural decisions
  • Contribute to product & UX design discussions — help shape what features the app offers

Skills

Must‑have:

  • Proven experience building and shipping React Native apps (3+ years)
  • Strong command of JavaScript / TypeScript
  • Comfortable with native modules (iOS / Android bridges)

Nice-to-have / Bonus:

  • Experience with CI/CD pipelines for mobile (Fastlane, Bitrise, CircleCI, etc.)
  • State management experience (Redux, MobX, Recoil, or similar)

What We Look For in You

  • Pragmatic engineer — you balance speed with quality, deliver MVPs, iterate
  • Ownership mindset — you see something broken, you fix it
  • Strong problem-solving skills, especially in high load / edge-case conditions
  • Passion for building mobile apps with great UX under tight constraints

What We Offer

  • Competitive salary + equity in a fast-growing crypto startup
  • Opportunity to shape a unique product at the intersection of social + crypto
  • Work in a small, passionate team that values quality, iteration, and innovation

Job Details

Company
Sentinel
Location
London, UK
Posted