Senior React Native Engineer

AppGrowly; Canada; Remote; CAD 160,000 - 190,000; Full time

Job summary

AppGrowly is seeking a senior mobile engineer to design, build and ship cross-platform apps using React Native and TypeScript for iOS and Android.

You will write and maintain native modules in Swift and Kotlin, release updates to the App Store and Google Play, and work on performance optimizations, onboarding, paywalls, and experiments with the ASO team. Excellent communication is essential.

Qualifications

• 5+ years building mobile apps professionally.
• 3+ years using React Native in production.
• Strong TypeScript and React skills.
• Experience releasing to App Store and Google Play.
• Clear written communication.

Responsibilities

• Design, build and ship features in React Native and TypeScript for iOS and Android.
• Write and maintain native modules in Swift and Kotlin, including in-app purchases on both stores.
• Ship releases to the App Store and Google Play, and keep both builds healthy.
• Profile and fix performance problems: startup time, lists, animations and memory.
• Review code, mentor other engineers and help decide when to go cross-platform and when to go native.
• Work with our ASO and ads specialist on onboarding, paywalls and experiments.

Skills

React Native

TypeScript

Mobile app development

Swift

Kotlin

Performance profiling

Code review

Tools

Swift

Kotlin

React Native

TypeScript

Job description

Build cross-platform apps in React Native and TypeScript that feel native on both iPhone and Android, and dive into Swift or Kotlin when the job needs it.

What you'll do

• Design, build and ship features in React Native and TypeScript for iOS and Android.
• Write and maintain native modules in Swift and Kotlin, including in-app purchases on both stores.
• Ship releases to the App Store and Google Play, and keep both builds healthy.
• Profile and fix performance problems: startup time, lists, animations and memory.
• Review code, mentor other engineers and help decide when to go cross-platform and when to go native.
• Work with our ASO and ads specialist on onboarding, paywalls and experiments.

What you bring

• 5+ years building mobile apps professionally, including 3+ years of React Native in production.
• Strong TypeScript and React, and a good understanding of React Native's new architecture.
• Enough Swift and Kotlin to write a native module and debug a native crash.
• Experience releasing on both the App Store and Google Play.
• Clear written communication: you explain your choices and write things down.

Nice to have

• Expo, EAS and over-the-air updates.
• Localizing apps in English and French.
• Education or exam-preparation apps.

CA$160,000 – CA$190,000 base salary per year

AppGrowly is an equal opportunity employer. We welcome applications from people of every background, including Indigenous peoples, racialized people, women, people with disabilities and 2SLGBTQIA+ people.

Accommodations are available on request for candidates with disabilities at every stage of hiring. Tell us what you need in your application, or at any time after.