Mobile Engineer Equity at Mozart AI

Job Title

Mobile Engineer

£60k-£100k + Equity

Mozart AI - $7M+ VC-backed music technology startup

You will own the end-to-end mobile experience for a viral music creation platform used by over 100,000 creators. As a key early hire, you'll build a high-performance React Native foundation, ship major features from prototype to production, and ensure the app feels 'Instagram-fast' while integrating professional-grade AI audio tools.

London, UK

• Join a rocket ship that reached 1M+ songs created and 10M+ Spotify streams within months of its viral beta launch.
• Backed by $7M+ from elite investors including Balderton Capital and the founders of Eventbrite and Frame.io.
• High-impact ownership where you define the mobile architecture and standards for a product used by world-class music producers.

• Architect and ship major React Native features while maintaining high-performance standards and p95 metrics for media loading.
• Lead the integration of complex mobile subscription states and revenue integrity using Revenue Cat and native store kits.
• Collaborate directly with the CTO and Growth Lead to build a robust analytics foundation for data-driven product evolution.

• Proven expert in React Native who has shipped and maintained production apps on both iOS and Android stores.
• Experienced in optimizing media-heavy feeds, handling background audio playback, and managing complex local/global state tradeoffs.
• Strong background in implementing in-app purchases and managing the technical edge cases of subscription life cycles and entitlements.

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1. Visit our website
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2. Click 'Talk to Jack'
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3. Talk to Jack so he can understand your experience and ambitions
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4. Jack will make sure Jill considers you for this role
Step 5. If Jill thinks you're a great fit and her client wants to meet you, they will make the introduction.
Step 6. If not, Jack will find you excellent alternatives. All for free.