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Justin Zhu
Mid-level Full-Stack Engineer specializing in web, iOS, and interactive platforms
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About
Full-stack developer who built a social media/live-streaming platform with searchable user streams based on profile attributes like hobbies, schools, and profession. Demonstrated hands-on ownership of both application and database architecture, including social graph modeling, SQL optimization, and a hybrid STUN/TURN approach for scaling multi-user live streaming on AWS.
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Key Strengths
- Built a full-stack social media platform with profile-based stream discovery
- Designed relational data models for social graph features
- Strong SQL querying and join-based data retrieval
- Improved search performance by normalizing JSON-based profile data into relational tables
- Understands real-time streaming tradeoffs between P2P/STUN and TURN architectures
- Balanced scalability and infrastructure cost with a hybrid TURN fallback approach
- Took ownership of refactoring codebase and database design for maintainability
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