US Mobile Logo

US Mobile

Mobile Engineer

Reposted Yesterday
Be an Early Applicant
Hybrid
Toronto, ON, CAN
Senior level
Hybrid
Toronto, ON, CAN
Senior level
As a Mobile Engineer, you'll build and modernize cross-platform mobile applications, guide fellow engineers, and enhance user experience while collaborating with product and design teams.
The summary above was generated by AI

US Mobile is building the future of wireless communication. The goal: one unified network 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, surveys, and customer support informing product roadmaps and everything we do. It’s working — Consumer Reports named us the top-rated mobile carrier 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.

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 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.
  • 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 (0.77+) + TypeScript
  • Tanstack ReactQuery
  • React Navigation

Benefits:

  • Competitive salary
  • Flexible working hours
  • Supplemental health insurance
  • Professional development stipend
  • $500 wfh tech set-up reimbursement

Think you're a good fit? Apply to learn more!

Similar Jobs

45 Minutes Ago
In-Office or Remote
Canada
Senior level
Senior level
Artificial Intelligence • Fintech • Machine Learning • Software • App development • Conversational AI • Generative AI
Lead mobile QA across iOS and Android: define test plans, run functional/exploratory/regression/UI/UX and E2E API tests on real devices and emulators, build and maintain UI+API automation integrated with CI/CD, support store releases and crash monitoring, collaborate with product and engineering, and track QA metrics.
Top Skills: Adb LogcatAllure TestopsApp StoreAppiumBitriseCharlesCi/CdEmulatorsFiddlerGitGithub ActionsGoogle PlayGraphQLJavaScriptJIRAMaestroPostmanProxymanPythonReal DevicesRestSentryXcode Console
3 Days Ago
In-Office
3 Locations
Senior level
Senior level
Information Technology • Internet of Things • Software
Lead design, architecture, development, and maintenance of Geotab's iOS and/or Android mobile apps. Drive technical decisions, CI/CD, testing, performance optimization, and integration with telematics backends. Mentor engineers, adopt AI-assisted tools, own release processes, and participate in on-call incident response to ensure a reliable, scalable mobile experience.
Top Skills: App StoreBitriseBleCan BusClaude CodeClean ArchitectureDetoxEspressoFastlaneFlutterGithub ActionsGithub CopilotGoogle PlayJetpack ComposeKotlinMqttMviMvvmReact NativeSwiftSwiftuiWebsocketsXctest
4 Days Ago
Hybrid
Toronto, ON, CAN
Senior level
Senior level
Digital Media • Gaming • Software • Sports
Develop, maintain, and optimize a React Native (Expo/EAS) mobile app focused on community features (social feeds, bet sharing, chat). Improve performance and reliability using Crashlytics, testing frameworks, and CI/CD. Collaborate with Product, Design, and Engineering to shape features and technical direction, establish React Native best practices, and support platform growth across squads.
Top Skills: AndroidAppleBackend Api IntegrationCi/CdCrashlyticsDeep LinkingDetoxEasExpoGeolocationGitGoogleGoogle PlayiOSJestOffline Data StrategiesReactReact NativeSwiftTestflightTesting LibraryTypescript

What you need to know about the Toronto Tech Scene

Although home to some of the biggest names in tech, including Google, Microsoft and Amazon, Toronto has established itself as one of the largest startup ecosystems in the world. And with over 2,000 startups — more than 30 percent of the country's total startups — Toronto continues to attract new businesses. Be it helping entrepreneurs manage their finances, simplifying business operations by automating payroll or assisting pharmaceutical companies in launching new drugs, the city's tech scene is just getting started.

Sign up now Access later

Create Free Account

Please log in or sign up to report this job.

Create Free Account