Los Angeles Metropolitan Area
Core Engineering, Media Delivery Platform. Building performance-critical systems across networking, storage, diagnostics, and app infrastructure for Snapchat’s iOS app, serving 800M+ users.
• Built a real-time network quality prediction system for Snapchat, improving latency estimation accuracy by 71% and reducing p90 prediction error from +28ms to +9ms.
• Shipped a storage cleanup system to 8.2M+ iOS users, reducing app storage usage by 26% at p90 and saving up to 5.7 GB per device.
• Drove a 1.3-2.4% crash-rate reduction, +0.10% lift in daily app opens, and +0.34% lift in ad clicks, all statistically significant at p < 0.01.
• Built automated storage diagnostics that surfaced a 97 GB data accumulation bug and fixed a crash affecting devices with 170+ GB of cached data.
• Migrated iOS network monitoring infrastructure for 15.2M+ users, correcting a 3-4% cellular vs. WiFi traffic attribution error impacting downstream analytics and ad targeting.
• Improved app launch performance by 5.3% and increased ad engagement by 5% through a phased rollout from dogfood to full production.