US MobileVerified Job Source

Senior React Native Engineer

Montréal, QC
Hybrid
Posted Aug 19, 2026
1 position

US$120,000–US$160,000 / year

Opens an external site

Employment type: Full-time
Experience level: Senior · 5+ years
Posting language: English
Working hours: 40 hours per week

Job summary

Build and maintain modular, cross-platform mobile applications using React Native while modernizing existing features for performance and scalability. Collaborate with product and design teams to ensure high-quality user experiences and mentor fellow engineers in best practices.

Job details

US Mobile is building the future of wireless communication. The goal: one unified network [http://usmobile.com/manifesto] open to any person and any device, worldwide. Connection without walls. We’re getting there by empowering customers. All three major networks on one phone and one plan, plus home internet from Starlink. No lock-in. No commitments. Custom fit plans at every price point. 24/7 customer support with real people, empowered to help. We get real-time feedback from Reddit [https://www.reddit.com/r/USMobile/], surveys, and customer support informing product roadmaps and everything we do. It’s working — Consumer Reports named us the top-rated mobile carrier [https://usmobile.com/cr] two years in a row.* And we’re building innovative systems that scale. A network agnostic tech stack. Agile, cross-functional teams built on trust and mutual respect. This work isn’t for everyone. If you work fast, flexibly, and collaboratively — without compromising standards — we want to hear from you. \n What You'll Do: * 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. Role Requirements: * Minimum 7 years in mobile development (with 5 years of hands-on React Native expertise). Proven track record of successfully launching applications on App Store and Google Play. * Knowledge of mobile user experience principles and the distinct characteristics of iOS and Android platforms. * Hands-on experience with continuous integration/deployment, over-the-air updates (such as Expo), and release automation. * Demonstrated ability to excel in dynamic startup settings—delivering quickly without compromising code quality. * Excellent interpersonal skills with a passion for knowledge sharing and team collaboration. Core Technologies We're Currently Building With: * React Native (0.83+) + TypeScript * Tanstack ReactQuery * React Navigation Benefits: * Competitive Salary * Gym reimbursement * Commute reimbursement * Flexible working hours * Professional development stipend * Flexible time off * Cell phone service (up to $100/mo) \n $120,000 - $160,000 a year \n Think you're a good fit? Apply to learn more!

What you’ll do

Requirements

Requires a minimum of 7 years in mobile development with at least 5 years of hands-on React Native expertise. Candidates must have a proven track record of launching applications on major app stores and experience with CI/CD and release automation.