Senior Mobile Engineer - React Native + Expo

The Mobalytics mission is to create the ultimate gaming companion, providing powerful tools that enable all players to step up their game and be their best selves.

Over the past few years, we have gone from just servicing League of Legends players to empowering players of different genres through Teamfight Tactics, Diablo 4, Path of Exile 2, and many many more. Millions of players get game advice from Mobalytics every day, and now we want to be in their pocket too.

We're building the Mobalytics mobile app from the ground up, and we're looking for the engineer at its core. This is a hands-on, coder-first role: you'll write a large part of the app yourself and lead by example through your code, architecture and reviews. This isn't porting a website to a phone. It's building something players reach for between matches, in the queue and on the go.

Our Mobile Stack

React Native with Expo (SDK, Expo Router, development builds)

TypeScript everywhere

EAS Build, EAS Submit and EAS Update for builds, store delivery and OTA updates

GraphQL APIs backed by our Go microservices

Mixpanel for product analytics

Your Responsibilities

Build the app's foundation hands-on: architecture, navigation, state and data layer, offline behaviour, theming and a shared component library

Write and ship features, and set the coding standards and patterns the rest of the squad follows

Be the React Native reference for the team: review code and pair with React developers as they make the move to mobile

Make the app feel native on both iOS and Android: performance, animations, gestures, haptics, push notifications and deep links

Own the mobile release flow (signing, versioning, TestFlight and Play testing tracks, staged rollouts, OTA updates), together with our DevOps team, who handle CI/CD infrastructure

Work with the Product and design team to decide what a phone does better than a desktop.

Your Technical Skill Set

5+ years of software engineering experience, with at least 3 years working mainly in React Native

Shipped and maintained production React Native apps on both the App Store and Google Play. Please include store links in your application. Web React experience alone isn't enough for this role

Solid React web background, enough to know where web habits break on mobile and to help others avoid those traps

Hands-on experience with Expo: managed workflow and development builds, Expo Router, config plugins, and EAS Build, Submit and Update

Strong TypeScript and modern React (Hooks, Suspense, performance profiling)

Solid understanding of the React Native New Architecture (Fabric, TurboModules) and of when a native module is needed (Expo Modules API is a plus)

Experience with Reanimated and Gesture Handler, and you care about 60 fps scrolling and smooth transitions

Experience with GraphQL or REST data layers and caching (Apollo, TanStack Query or similar)

Familiarity with mobile testing at different levels (Jest, React Native Testing Library, Detox or Maestro)

Comfortable reading and debugging Swift/Kotlin and Xcode/Gradle builds when something breaks below the JavaScript layer

Your Personal Skill Set

You'd rather open a PR than a slide deck, and you lead with working code

You enjoy sharing what you know, and a good code review or pairing session is part of the job for you, not a distraction from it

You want to do a job that means something, and to build things people love

You speak up when the team is heading down the wrong path

You are fluent in English. You'll work daily with global stakeholders and cross-functional team members in English.

Would be a plus

Experience building an app from scratch (0 → 1) rather than only maintaining one

Experience helping web developers move to React Native

Experience with push notification strategy, in-app purchases or subscriptions

Native iOS (Swift) or Android (Kotlin) development experience

We don't care if you're ranked Bronze or Diamond, but familiarity with the games we support helps you understand what our players need

What we offer

Real ownership: you'll shape a product from the very beginning, in a flat organization where good ideas win, not titles

Fully Remote Job: we've been a remote company from day one

Flexible working hours: apart from scheduled meetings, we don't have a set schedule or a required number of hours. Mobalytics is about results, not hours spent

Salary paid in USD, wherever you are in the world

15 vacation days + 2 more weeks of company-wide vacation in Dec–Jan + 10 sick days

If you love games and want to build a mobile product for passionate communities of competitive gamers, this is the place for you.