Principal React Native Engineer

We are hiring a Principal React Native Engineer in Mumbai for a team building on React Native, Performance, Android. 10-15 years of experience.

React Native, Performance, Android, with React, Animation across the wider stack.

• 10-15 years with React Native in production.
• Hands-on depth in Performance, Android, enough to defend a decision you made in each, and name the one you rejected.
• Working familiarity with React, Animation.
• You have set technical direction that other teams built on, and have been wrong about one of those decisions in a way you can describe.
• The ability to explain a technical decision to somebody who did not make it. Every round here includes it.

Not the focus of the interview, but part of the job. Teams ask about these, so be ready to talk about them:

• Git, branching and code review as a daily habit
• One cloud provider used in anger: AWS, Azure or GCP
• CI/CD: your work reaches an environment without somebody carrying it
• Release engineering: signing, staged rollout, and a store review you have survived
• CI for mobile: Fastlane, Codemagic or GitHub Actions
• Offline storage and sync, because the network is not a given
• REST or GraphQL clients, retries, and cache invalidation

Expect to be asked how you would approach a problem in each of the areas above, and why you would not take the obvious route. Then one level down on whichever answer was weakest.