Senior Mobile Engineer - React Native, End-to-End Features

triumph-arcade

San Francisco (CA)

On-site

USD 120,000 - 180,000

Full time

8 days ago

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Job summary

Triumph is seeking a talented mobile engineer to own core features in React Native and Expo, from design discussions to launch and iteration. You’ll shape motion, transitions, and perceived performance to create a native-like user experience while ensuring correctness and polish in a high-stakes trading-card app.

You’ll dive deep into native modules when needed, partner with backend teams on API design, and own reliability metrics such as startup time and crash-free sessions.

Qualifications

Experience with React Native and Expo in shipping apps.
Strong mobile engineering background with end-to-end ownership.
Ability to debug performance and rendering issues on mobile devices.

Responsibilities

Build and own core product features in React Native and Expo, from design through launch.
Focus on motion, transitions, perceived performance, and small details that delight users.
Delve into native modules and platform APIs when necessary to solve problems.
Collaborate with backend engineers on API and data model design, pushing back on contracts that hurt the client.
Own performance and reliability: startup time, frame rate under load, crash-free sessions.
Set architectural patterns and guardrails to help future features ship quickly.

Skills

React Native

Expo

Mobile engineering

Ownership

Performance optimization

Debugging

Tools

Native iOS

Android

Native modules

API design

Job description

You’ll dive deep into native modules when needed, partner with backend teams on API design, and own reliability metrics such as startup time and crash-free sessions.

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