• WhatsApp Android: Led initiatives to reduce app data usage and improve resource efficiency (battery, memory, disk) for 2B+ users; shipped WhatsApp Payments infrastructure on Android.
• Instagram Video Infrastructure: Drove adoption of ExoPlayer 2 and Adaptive Bitrate (ABR) streaming improvments — meaningfully improving video quality and reliability at global scale.
• Portal Identity: Brought WhatsApp to Portal devices, designing the identity and auth infrastructure for a new hardware form factor.
• Facebook App Infrastructure: Worked on OEM partnerships and upgrade infrastructure supporting the full Facebook Family of apps; contributed to initial Oculus mobile products.