Senior React Developer

Woodbridge South, Canada | Posted on 08/19/2026 Welcome to the Cutting-Edge of Innovation: ZAZZ Step into the world of ZAZZ, a realm where innovative design meets software development brilliance. We're not your average tech company; we're trendsetters shaping the future, crafting digital masterpieces, and redefining boundaries. At ZAZZ, technology isn't just a tool—it's our canvas, our playground. Our passionate, ingenious team doesn't just adapt to the latest technologies; Join us, and you’ll be at the heart of a revolution, influencing, and driving technological advancements. Ever dreamed of putting your mark on the digital universe? Here, you won't just be creating software—you'll be part of a grand journey to revolutionize digital experiences. Prepare to ignite your creativity and fuel your passion in an environment buzzing with groundbreaking ideas and projects. It doesn't matter if our client is a fledgling startup, a dynamic SME, or a Fortune 500 titan—we’ve partnered with them all. Plus, our team loves to get geeky over a coffee chat on the latest tech Lead engineer on the delivery team. Set engineering patterns, reference implementations, and code standards for the team. Pair with the client's engineers on paired-programming and knowledge transfer. Must-have technical experience ~8 + years mobile engineering, minimum 5 years hands-on React Native in production. ~ Direct production experience with React Native 0.76+ and the New Architecture (Bridgeless, TurboModules , Fabric). ~ Strong TypeScript, comfortable with strict mode. ~ Detox authorship for end‑to‑end mobile tests, both iOS and Android. ~ Prior implementation of APNs and FCM push notifications, including token migration on version upgrades. ~ Comfortable reading and writing native iOS (Swift or Objective‑C) and native Android (Kotlin or Java) at the level required to author or maintain TurboModules bridging native SDKs into React Native. Prior experience with iOS Keychain and Android Keystore for secure token storage. Direct experience on at least one mobile replatform from native to React Native, in production. Understanding of auth token migration, push token re‑registration, cached data reconciliation on first launch after replatform . Regulated Canadian mobile experience (public sector, transportation, financial services). Bilingual (English and French) app delivery experience. #