Full-stack Developer

Description:

ToastedHealth is revolutionizing the fitness industry with an AI-powered fitness app that's already live on iOS and Android. We're looking for an exceptional Lead Full Stack Engineer who will be instrumental in scaling our platform to millions of users while driving technical innovation and architectural decisions.

This isn't just a job—it's a chance to be a founding technical leader who will shape the direction of a fast-growing fitness tech company. You'll work directly with the founder to build features that genuinely transform how people approach fitness and health.

🎯 What You'll Be Working On

Core Platform (React Native + Firebase)

• Mobile-First Architecture: Scale our React Native app with 50+ screens, complex state management (Redux Toolkit), and real-time synchronization
• Firebase Infrastructure: Optimize Firestore, Cloud Functions, Storage, and implement advanced security rules
• Performance Engineering: Optimise app performance for concurrent users, implement intelligent caching, and reduce bundle sizes

AI/ML Integration & Personalization

• Progressive Overload Engine: Work on our AI-powered weight suggestion system that analyses user performance patterns
• Personalised Workout Generation: Work on our algorithms that create custom workout plans based on user goals, equipment, and preferences
• Smart Scheduling: Work on our intelligent workout scheduling that adapts to user behavior and life patterns

🎯 What We're Looking ForTechnical Excellence (Non-Negotiable)

• 5+ years of production React Native experience with apps in the App Store/Google Play
• Expert-level TypeScript and modern JavaScript (ES2022+)
• Advanced Redux/state management in complex applications
• Firebase expertise: Firestore, Cloud Functions, Authentication, Storage, Security Rules
• Mobile platform knowledge: iOS/Android deployment, App Store optimization, platform-specific features
• Node.js/Express backend development
• Degree in Computer Science preferred