Led a P0, foundational initiative enabling the platform to serve inference requests across heterogeneous AI hardware types, future-proofing the system against hardware fragmentation. Owned extensive redesign and alignment for the next-generation EMS platform with mixed-hardware capability, and led a team of 6+ engineers on the implementation, internal A/B testing, and rollout with 0 downtime.

As the reliability point-of-contact of the team, drove cross-stack reliability roadmapping across EMS data and control planes; migrated all production models to isolated prod environment & organized half-long workstreams across team, achieving ~43% crash rate reduction, ~9–10% increase for traffic served on elastic capacity, ~10–12× faster reaction times, and ~200% fewer oncall alerts.

Drove the investigation and remediation for 30+ SEVs, delivering durable, postmortem-driven fixes for revenue-critical incidents.

Built org-wide influence via mentoring junior engineers through oncall rotations and design reviews; led technical talks on platform architecture and next-generation serving capabilities.

Co-project lead in implementing VoIP calling third-party APIs on Messenger, which allows Messenger businesses to call customers / receive customer calls through third-party software to ensure operation scalability. Owned design of the real-time calling interface that integrated with first-party messaging infrastructure while meeting strict latency, reliability, and third-party extensibility requirements. Led a team of engineers to deliver test-ready beta 2-months early; closely coordinated with external enterprise customers to kickstart beta testing by end of 2024 ahead-of-schedule.

Designed the first end-to-end testing framework for Messenger and Instagram business messaging APIs, reducing the CI runtime by >90% and making critical tests push-blocking.

Improved API reliability through expanded test coverage, high-scale load testing, and test flakiness detection.

Drove privacy, security, and compliance work, ranking among top contributors on the team.

Created kubernetes deployment of cloud microservice that manages batch updates of digests and cached data objects in SQL store, with added concurrency protection for when interacting with multiple client microservices.

Generalized tooling (Protobuf, SQL cachestore) used in gRPC endpoints to propagate the digests pattern across services.

Changes included in Magma v1.6 release, estimated to reduce network load from 15.7TB to 0.054TB (/month/network).

Led team and developed Columbia Housing Review web page using React/NodeJS and MySQL stack, which allows for dynamic and concurrent user content generation.

Facilitating the migration of the Columbia Spectator website, which received over 4 million page views last year, to React in collaboration with the Washington Post.

Created training program for junior engineers in web development technologies, e.g. React, Node, SQL, Git.