Fullstack Mobile Developer (React Native, Supabase) - PT - NA/LATAM/EMEA

Arc Full-time
yesterday

Role details

Contract type
Temporary contract
Employment type
Part-time (≤ 32 hours)
Working hours
Regular working hours
Languages
English
Experience level
Senior

Job location

Remote

Tech stack

Java
Computer Animation
API
Amazon Web Services (AWS)
Amazon Web Services (AWS)
IOS Applications
iOS
Push Technology
Mobile Application Software
PostgreSQL
Systems Integration
Visual Effects
Firebase
Backend
Kotlin
Stripe
Cloudflare
React Native
Google Play

Job description

  • Build a single React Native codebase targeting both iOS and Google Play from the existing Lovable front end and written spec
  • Stand up backend infrastructure: Supabase (auth, data), Stripe/RevenueCat (in-app purchases), push notifications (local + remote)
  • Integrate pre-generated narrated audio (11Labs-generated files) into each practice, syncing playback timing to on-screen content and breathwork pacing
  • Recreate custom animations already built on the front end (organic "diffuse color" pulse/heartbeat effect, milestone and ritual-completion animations)
  • Implement haptic feedback tied to practice pacing and completions
  • Architect and implement object storage + CDN delivery for a growing library of audio practices and ambient soundscapes

Requirements

  • Demonstrated custom animation work - organic motion or non-trivial visual effects beyond standard Animated API usage
  • Experience writing or integrating native iOS (Swift/Objective-C) and Android (Kotlin/Java) modules from a React Native project
  • Supabase or equivalent backend integration experience
  • In-app purchase implementation (Stripe, RevenueCat, or equivalent)
  • Push notification implementation (local and remote)
  • Comfortable working from a detailed written spec without design handholding
  • Experience designing object storage + CDN delivery for media assets in a production mobile app (e.g., S3 + CloudFront, Cloudflare R2, Supabase Storage, Firebase Storage) - able to recommend the architecture, not just wire up playback, * WidgetKit (iOS) or Jetpack Glance (Android) home screen widget experience
  • HealthKit or Health Connect integration
  • Core Haptics (iOS) or custom VibrationEffect (Android)
  • Experience with variable/display web fonts (e.g., Cormorant Garamond) in a native context
  • Familiarity with breathwork, wellness, or mindfulness app conventions

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