Mobile Architect for Real-Time Music Collaboration

HireHi; Greater London; On-site; GBP 90,000 - 120,000; Full time

Benefits offered by this job

Significant equity

Medical and health insurance

Gym membership

MacBook of choice

Frive meal prep

Pension contribution

Relocation support to London

Job summary

Mozart AI is building a music creation network with Vibe sessions and Studio to enable collaborative music making and fan connections. You will own the mobile app architecture, state management, and navigation, including real-time collaboration, background tasks, and cross-platform integration.

The role requires 5+ years of mobile development with React Native and Expo, plus fluency in Swift and Kotlin. You will implement seamless navigation, presence, and offline support while ensuring

Qualifications

• 5+ Years of professional mobile development experience.
• Extensive React Native and Expo app experience with profiling and fixes on real devices.
• Fluency in Swift and Kotlin for native development and OS updates.
• Understand Hermes, JSI, native module systems, and bridging JS to native.
• Experience designing predictable state across screens, offline queues, and pushes.
• Experience with background tasks, background playback, and platform limitations.
• Prior work on apps with real-time collaboration or live data is beneficial.

Responsibilities

• Own mobile app architecture, state management, and navigation.
• Design navigation across media creation, editing, collaboration, and social features.
• Implement multiplayer presence and shared session state with robust conflict resolution.
• Build persistent mobile background systems for uploads/downloads and local data syncing.
• Support background audio, system playback controls, and interruption handling.
• Create and maintain deep links and attribution integrations, and ensure analytics are embedded.

Skills

React Native

Expo

Swift

Kotlin

Performance profiling

Offline/Background tasks

Deep links

Tools

Hermes

JSI

Native modules

iOS

Android

Job description

Mozart AI is building a music creation network with Vibe sessions and Studio to enable collaborative music making and fan connections. You will own the mobile app architecture, state management, and navigation, including real-time collaboration, background tasks, and cross-platform integration.

The role requires 5+ years of mobile development with React Native and Expo, plus fluency in Swift and Kotlin. You will implement seamless navigation, presence, and offline support while ensuring