Mobile Engineer

US Mobile; New York (NY); Hybrid; USD 100,000 - 140,000; Full time

Benefits offered by this job

Competitive salary

Flexible working hours

Supplemental health insurance

Professional development stipend

$500 wfh tech set-up reimbursement

Job summary

US Mobile is seeking an experienced mobile developer to create innovative, cross-platform applications using React Native. Ideal candidates will have a minimum of 5 years in mobile development and a strong passion for enhancing user experiences.

The role includes modernizing existing features, collaborating closely with product and design teams, and fostering high-quality code development among peers. Benefits include a competitive salary, flexible hours, and a professional development stipend.

Qualifications

• 5+ years of mobile development experience, with 4 years in React Native.
• Proven track record of launching apps on App Store and Google Play.
• Hands-on experience with release automation and over-the-air updates.

Responsibilities

• Build cross-platform mobile applications using React Native.
• Modernize and refactor existing features for scalability and performance.
• Establish and maintain testing frameworks and release processes.

Skills

Mobile development

React Native

Continuous integration

Team collaboration

Tools

TypeScript

React Navigation

Tanstack ReactQuery

Job description

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

We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses and identifying potential inconsistencies or verification signals in application materials based on available information. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.