Senior Mobile App Engineer (React Native)

Angel•Provo, UT

3d•$160,000 - $175,000

About The Position

Angel Studios is hiring a Senior Mobile App Engineer to build and improve its iOS and Android mobile apps using React Native, Expo, and TypeScript. The role owns major app features from technical design through launch and iteration, spanning content discovery, playback, and user engagement. The engineer will spend most of their time building and shipping while contributing to code quality, technical collaboration, and shared team standards. The position focuses on delivering reliable, high-quality streaming and personalized discovery experiences, including resilient playback, offline viewing, downloads, notifications, and membership flows. It also contributes to mobile architecture, performance and reliability, measurement and experimentation, Expo-based delivery workflows, OTA updates, CI/CD, testing, and release processes. The engineer collaborates with product, design, and backend teammates and helps improve team productivity through reviews, knowledge sharing, and better tooling. The position is regular full-time at 40 hours per week. It is based in Provo, Utah, with hybrid or remote options. Remote team members need a private, quiet workspace. In the main office, the environment is comfortable and air-conditioned, with desks in an open shared space that can be fast-paced and occasionally noisy. Travel to 2–4 onsite events in Utah each year is required; no other significant out-of-state travel is anticipated. Applicants must be authorized to work in the United States.

Requirements

At least 5 years of software engineering experience.
At least 3 years building mobile applications.
At least 3 years of production React Native experience.
Strong experience with TypeScript and modern frontend architecture.
A proven track record of shipping complex, consumer-facing app features.
Experience working on apps with real users at scale.
Strong React Native expertise and the ability to build and scale production mobile apps.
Ability to design mobile features and systems that balance performance, scalability, and developer experience.
Familiarity with Expo, OTA updates, mobile CI/CD pipelines, and release processes.
A builder mindset and product ownership, with a focus on user outcomes.
A focus on app responsiveness, crash rates, performance, reliability, and user experience details.
Experience using A/B tests and metrics to guide product and engineering decisions.
Ability to collaborate with product, design, and backend engineers and communicate tradeoffs clearly.
Initiative to identify problems and drive solutions end-to-end.
Comfort working in a fast-moving environment with evolving priorities.
Willingness to support teammates through code review, pairing, and shared standards.
Authorization to work in the United States.

Nice To Haves

Experience with Expo and OTA update systems.
Experience building streaming or media-heavy applications.
Experience implementing push notifications and engagement systems.
Experience with subscription or membership flows, including in-app purchases, payments, or authentication.
Experience with analytics, observability, and performance monitoring tools.
Background in high-performance or resource-constrained environments.
Experience with native iOS (Swift) or Android (Kotlin) development.
Familiarity with the Angel Guild.
Understanding of video playback, buffering, caching, or other performance-critical systems.

Responsibilities

Own major mobile app features end-to-end, from technical design through launch and iteration, across discovery, playback, and user engagement.
Deliver seamless, high-quality streaming playback with fast startup times, minimal buffering, adaptive streaming, and resilient offline playback.
Implement intuitive browsing, search, recommendations, and personalized content experiences.
Write scalable, maintainable React Native (Expo and TypeScript) code that performs across devices and network conditions, and contribute to architectural direction.
Work within and improve Expo-based workflows, including OTA updates, CI/CD pipelines, and release processes.
Build and iterate on features such as downloads, offline mode, notifications, and membership flows.
Resolve challenges involving video playback, background downloads, offline sync, push notifications, and app lifecycle management.
Instrument and track metrics such as startup time, buffering rate, crash-free sessions, engagement, and retention, and use data to guide decisions.
Conduct code reviews, share knowledge, and help teammates grow while remaining hands-on.
Improve tooling, testing, CI/CD, and shared patterns to increase team productivity.