Built the core AI pipeline: human pose estimation, DTW-based temporal alignment, scoring algorithm, and LLM integration.

Coordinated team of 5

Shipped as Android and web app

Reviewing student work & giving feedback

Walk students through challenging confusions in office hours

Solved long-standing problem of commercial karaoke software in C++ through research and runtime inspection debugging, allowing client to declare stable release and start large-scale promotion

Developed pitch-shifting function for karaoke software using C++, responding to long-time demand

Audited and optimized core code for FILLiquid, lending platform for Filecoin written as Solidity contract, revealed and led to repair of 1 critical security vulnerability, 5 bugs, and 11 sub-optimal designs

Wrote majority of core code of Spex Loan, another lending platform, as Solidity smart contract, collaborating with front-end developer and project manager

Onboarded in 5 days, from oblivious of fundamental blockchain concepts to full working capacity