U
US Mobile
Mobile Engineer
Skills
Mobile DevelopmentReactTypescriptIOSReact NativeTesting & QA
2 months ago
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Important information
Contract type:
Permanent
Salary:
$130,000 – $160,000 / year
Location:
Toronto, ON, Canada
Work mode:
Onsite
Published on:
21 August 2026
What they need
- Build cross-platform mobile applications using React Native, ensuring modular, extensible, and maintainable architecture
- Modernize and refactor existing application features to enhance performance, scalability, and future-proofing by leveraging performance metrics and error monitoring platforms
- Partner closely with product and design stakeholders to create high-performance, user-friendly features with strong visual appeal
- Establish and maintain robust testing frameworks, reliability standards, and streamlined release processes as well as collaborate with QA to ensure testing coverage
- Guide and develop fellow engineers while fostering an environment focused on high-quality code, creative solutions, and ongoing skill development
- Create and maintain clear process documentation as well as contribute to development and design guidelines
- Research emerging technologies and best practices within the React Native ecosystem; present findings to the team and influence design and technical decisions
- Champion user experience across the product lifecycle, ensuring designs translate seamlessly into practical, engaging solutions
- Core Technologies We’re Currently Building With:
- React Native (0.77+) + TypeScript
- Tanstack ReactQuery
- React Navigation
Benefits
- Gym reimbursement
- Free cellular service on the best network in the US
- Free lunch in NYC office & fully stocked kitchen
- Metrocard reimbursement
- Flexible working hours- Excellent interpersonal skills with a passion for knowledge sharing and team collaboration
- Demonstrated ability to excel in dynamic startup settings—delivering quickly without compromising code quality
- Hands-on experience with continuous integration/deployment, over-the-air updates (such as Expo), and release automation
- Knowledge of mobile user experience principles and the distinct characteristics of iOS and Android platforms
- Minimum 5 years in mobile development (with 4 years of hands-on React Native expertise).Proven track record of successfully launching applications on App Store and Google Play
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