Senior React Native Engineer

About Scopex Scopex moves money from Europe/US to India for NRIs and expats — 0% transfer fees, better-than-market rates, and delivery to Indian bank accounts in minutes rather than days. Behind that simple promise sits real financial infrastructure: identity verification, regulated payin rails, customer wallets, and settlement with banking partners. Our mobile app is the product. Almost every customer interaction — onboarding, KYC, funding, sending, tracking — happens on a phone. We are looking for a senior engineer to own that surface. The role You will be a senior individual contributor with genuine ownership of our React Native codebase: a large TypeScript app shipping to the App Store and Play Store plus over-the-air updates. This is not a ticket-closing role. You will shape mobile architecture, decide what gets refactored, and be the person the team trusts on anything that touches the app. What you'll actually work on Money movement flows. Send money, split transfers, add money, bank-linked payins, wallet balances, rate alerts. These flows have to be correct under bad networks, partial failures, and retries — a double-charged customer is not an acceptable bug. Identity and auth. KYC and re-verification journeys with our verification partners; passkeys and WebAuthn; biometric unlock; device management; social sign-in. Release engineering. You own the release train: versioning, Gradle and Xcode builds, CI pipelines, and OTA delivery across staging and production. Performance and stability. Startup time, list performance, animation-driven interactions, bundle size, and keeping crash and performance monitoring boring. Our crash-free rate is a number you will care about. Platform health. Keeping us current on the React Native release train and charting our New Architecture path. Testing. Unit tests with Jest and React Native Testing Library, end-to-end smoke flows with Maestro. We want more coverage on the money paths, and we want you to have opinions about how. What we're looking for 5+ years building software, with 3+ years shipping production React Native apps to both the App Store and Play Store. You have owned apps with real users, not just prototypes. Strong TypeScript. You use the type system to make broken states unrepresentable, not to decorate any. You can drop into native when you have to. Reading and debugging Swift/Objective-C and Kotlin/Java, wiring up a native module, interpreting a native crash trace, and resolving Gradle or CocoaPods problems without stalling for days. Depth in the modern RN ecosystem: React Navigation, Reanimated, Gesture Handler, fast key-value storage, React Query for server state, Context for app state. You know when a re-render is the real problem. Judgement about correctness. You instinctively think about idempotency, error states, race conditions, and what the user sees when the request times out at the worst possible moment. You write for the next engineer. Clear PRs, reviewable commits, and code that matches the conventions around it. Strong written English and async habits. Our team spans time zones; clarity in writing is how we stay fast. Nice to have Fintech, payments, remittance, or any regulated environment — especially KYC/AML, PCI, or FCA/RBI-adjacent constraints Passkeys, WebAuthn, or applied client-side cryptography and secure key handling OTA update strategy and staged rollouts Experience leading a New Architecture / Fabric migration Localisation and multi-currency UX Mobile analytics and growth instrumentation