React Native Mobile App Developer for Fitness Tracking App

We’re a growing fitness-tech startup with a React Native app (iOS + Android) that helps users track workouts, nutrition, habits, and connect with coaches. Current users: 25k+, revenue from subscriptions + in-app purchases (Stripe + Apple/Google Pay).

The app is stable but we’re shipping new features every 2–3 weeks (AI workout suggestions, social feed, wearable sync, challenges). We need a strong React Native dev to own the mobile codebase, fix bugs, optimize performance, and publish updates. Perfect if you breathe React Native, ship clean code fast, and want product ownership with startup-level pay.

Responsibilities

Build new screens & features (React Navigation, Reanimated 3, custom animations)

Integrate APIs (our Laravel backend + Stripe, Apple Health, Google Fit, Wear OS)

Fix bugs & crash reports (Sentry + Firebase Crashlytics)

Optimize performance (Hermes, code splitting, image caching)

Implement push notifications (Expo Notifications or OneSignal)

Handle App Store + Google Play submissions (we use EAS Build)

Add offline support & data sync

Occasional UI polish with Tailwind/RN StyleSheet

Write unit/integration tests (Jest + Detox)

Required Skills

Expert React Native (hooks, context, Reanimated, Gesture Handler)

Expo managed workflow + EAS Build

REST + GraphQL (we use both)

TypeScript proficiency

Git + clean code practices

Nice to Have

Experience with fitness/health apps (HealthKit, Google Fit)

Located in Philippines, India, Pakistan, Indonesia, or Eastern Europe

Expo Router + Supabase/Clerk auth experience

RevenueCat for subscriptions

Firebase/AWS Amplify

Published 5+ apps to App Store & Play Store

Typical Weekly/Monthly Tasks

30–40 hours per week

New features: 20–25 hrs

Bugs + hotfixes: 5–10 hrs

Reviews + deploys: 5 hrs

What We Provide

Full repo access + Expo account

Backend APIs fully documented (Postman + OpenAPI)

Figma designs + Zeplin access

All tools paid (Expo, Sentry, RevenueCat, etc.)

Weekly standups + async Slack updates

Mac Mini for builds if needed

What We Offer

Top 1% pay for React Native freelancers

Paid 1-month trial at full rate

$1,000–$3,000 quarterly bonuses tied to user growth

Rate increases every 6 months

Potential full-time offer + equity after 12 months

Working Schedule

Flexible but need 4–6 hrs overlap with US Pacific Time (we’re US-based team).

Payment Structure

Standard Tier – $2,500/month (30 hrs/week, features + bugs)

Senior Tier – $3,200/month (35 hrs/week, includes performance + testing)

Lead Tier – $4,000/month (40 hrs/week, full ownership + architecture + deploys)

Paid bi-weekly via Wise or PayPal.

Tools You’ll Use

React Native, Expo, TypeScript, Reanimated 3, React Query, Sentry, Firebase, RevenueCat, Figma, GitHub

Training Provided

Yes — full codebase tour, existing docs, and pair-programming first sprint.

Realistic Expectations

We ship fast but don’t crunch. You’ll have real impact — your code goes to 25k+ users weekly. We value velocity + reliability over perfection.

Growth Opportunities

Our last mobile dev became Head of Mobile and now earns $7k+/month + equity. This role can grow into leadership or full-time C-level as we scale.

Ideal Candidate

React Native is your main thing

Ships production updates weekly

Obsessed with smooth 60fps animations

Wants to own a consumer app long-term

Cares about fitness and health

How to Apply

Please reply with:

“RN” in the first line so I know you read everything

Link to 1–2 React Native apps you’ve shipped (App Store/Google Play links or GitHub)

Your asked monthly rate ($2,500–$4,000 range)

Hours per week you can commit

One proud React Native feature or optimization you built

Your time zone + overlap with US Pacific

Why you love building fitness/lifestyle apps