React Native Developer

6 days ago


London Area, United Kingdom Sentinel Full time

Senior React Native Developer - 300K Salary - Onsite - LondonYou 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 reachWhat You’ll DoBuild, maintain, and iterate on a cross-platform mobile app using React NativeIntegrate with blockchain / crypto backends (Solana RPC, wallet connectors, Web3 APIs)Implement real‑time features: live updates, WebSockets, subscription streamsHandle in-app state management, offline caching, synchronization, data persistenceEnsure high performance, smooth animations, responsiveness even under high loadParticipate in code reviews, mentoring, architectural decisionsContribute to product & UX design discussions — help shape what features the app offersSkillsMust‑have:Proven experience building and shipping React Native apps (3+ years)Strong command of JavaScript / TypeScriptComfortable 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 YouPragmatic engineer — you balance speed with quality, deliver MVPs, iterateOwnership mindset — you see something broken, you fix itStrong problem-solving skills, especially in high load / edge-case conditionsPassion for building mobile apps with great UX under tight constraintsWhat We OfferCompetitive salary + equity in a fast-growing crypto startupOpportunity to shape a unique product at the intersection of social + cryptoWork in a small, passionate team that values quality, iteration, and innovation



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