experiences | Zhiyang's Digital Garden

Incoming Software Developer Intern

Optiver • Sydeny Australia, December 2025 – February 2026

DRW Holdings • Singapore, May – August 2025

Optimised performance-critical trading component in C++ using template metaprogramming.
Improved in-house Python dependency-graph library by replacing performance critical code with C++ bindings to reduce execution-time by 30x.
Developed a new API for OpenSSL write functionality in C that supports vectored IO to reduce the number of records sent over the network (Pull Request #27768)
Implemented zipping feature in C++ that handles the creation of zip archives and file compression to automatically convert output files from npy to npz format.

Octava Digital Assets • Singapore, May – August 2024

Researched and developed crypto asset trading strategies ranging from technical forecasts, sentiment analysis, and regression/machine learning approaches.
Established an efficient and comprehensive pipeline to evaluate trading strategy performance which integrates into the existing portfolio allocation infrastructure.
Conducted extensive analysis on macro factors that potentially influence the price action of crypto portfolios.
Deployed a cloud-based application that monitors daily price movements, generates a PDF containing statistics and visualized charts, and emails the portfolio performance report to investors.

Impact Experience Project • Singapore / Cambodia, May 2023 – Present

Deployed full-stack web application currently in use by health centers based in Kampong Chhnang, Cambodia.
Designed a responsive and intuitive interface, ensuring accessibility and facilitating efficient data entry.
Integrated SQL for robust backend database management with data validation and error handling mechanisms.
Participated in on-site visits to study local conditions and collaborated with Water and Healthcare Foundation.