Software Engineer, Notifications

• Engineered a proprietary core Android push notification infrastructure—built as a scalable alternative to FCM—delivering all notifications across Meta applications to over 300 million devices globally.
• Spearheaded a 0-to-1 platform initiative to port the core notification system to Meta's first-party hardware devices, architecting the backend systems required to enable robust third-party notification support.
• Enhanced connection security by migrating to a secure, zero-knowledge network handshake protocol and implementing advanced security-hardening features across the core service.
• Partnered with the Messenger team to redesign the notification architecture, ensuring seamless compatibility and secure data handling for a newly implemented end-to-end (E2E) encryption paradigm.