Early iOS engineer on Meta’s Wearable companion app for Ray-Ban Meta and Oakley HSTN, serving millions of users. Scaled the app from a single wearable to a platform supporting 5+ device families and helped rebrand it into a mobile surface for Meta’s GenAI features.

Worked across feature, platform, and infrastructure teams over four years. Built a shared design system used across most screens, implemented leak-prevention systems that caught dozens of product leaks, and migrated build recipes to a clean, declarative structure. Led software testing, raising unit test coverage from 20% to 75% in six months. Tech lead for the bug reporting feature, coordinating across 4+ cross-functional teams. Recent initiatives include ML-based triage, reducing device onboarding to one day, and lowering log loss from 20% to 3%.

Managed a summer intern who converted to a return offer.

Engineer on the TD America app. Developed a core API for provisioning credit and debit cards in Apple Wallet using PassKit. Previously, card provisioning required a manual call with a 20% completion rate; the new in-app flow reduced call volume by 75% and increased completion to 90%.

Staffed on the Care4Rare project - a nationwide effort to analyze genomics for causes of rare disease. Standardized data pipelines written in Python, Bash and R, and developed websites to facilitate the analysis of genetic data.

Led a small team of 3 to migrate existing pipelines and scripts to an open source framework called SnakeMake. This eliminated almost all manual steps in the lab’s primary analysis, freeing up 4 hours of analyst time per week.

Wrote multi-threaded Python code to identify causative mutations for muscular dystrophy in RNAseq. Code has been used by scientists at Harvard, UCLA and the University of Toronto.

Published paper: https://www.cell.com/ajhg/fulltext/S0002-9297(19)30012-6?fbclid=IwAR0NpFUWQoS498EF_n31_nWXHTEi2Su3RVmjuzh2owelvp3yfWWmnfuN1EI#%20

Source code: https://github.com/dennis-kao/MendelianRNA-seq-DB

Wrote test scripts to verify fixed issues on a wireless alarm panel in ROBOT framework. Developed a C++ program to generate and send JSON messages to a wireless alarm panel.