Role summary. Delivery engineer contributing across the three delivery waves under the guidance of the Senior React Native Engineer. Owns lower-complexity screens, contributes to shared components, participates in paired development with 407 ETR's team.

Responsibilities.

- Deliver screens and features across the three delivery waves.

- Follow patterns set by the Senior Engineer and Technical Architect.

- Write unit and component tests to meet the 75% coverage gate enforced in CI.

- Contribute to Detox end-to-end test suites.

- Participate in pull request reviews.

- Pair with 407 ETR's engineers on knowledge transfer.

Must-have technical experience.

- 5+ years mobile engineering, minimum 3 years hands-on React Native in production.

- Solid TypeScript.

- Familiar with React Native 0.76+ and the New Architecture — understanding of Bridgeless, TurboModules, Fabric even if not architect-level authorship.





- Fluent with Hermes and modern React patterns (hooks, composition, suspense).

- Comfortable with TanStack Query and Zustand, or equivalent state management.

- Test authorship experience with Jest, React Testing Library, and Detox.

Native platform expertise (preferred, not ).

- Basic ability to read native iOS and Android code to debug or modify existing modules. Not expected to author complex TurboModules from scratch.

Migration and replatform experience (preferred).

- Any prior involvement in a React Native migration or feature-parity rebuild is a solid plus.

Industry background (preferred).

- Prior work on payment flows, account management, or public-facing regulated mobile.

📌 React Native Engineer - Canada (Woodbridge)
🏢 Zazz
📍 Woodbridge