📈About Me
Hello friends, this is Alex Tung from Hong Kong. I have been working for about 1.5 years at Susquehanna’s Sydney office as an options quant.
Previously, I was in Waterloo researching graph algorithms, advised by Prof. Lap Chi Lau. I defended my PhD in February 2025. Prior to my PhD studies, I obtained a BSc in Mathematics (minor in French) from CUHK. I am known as alex20030190 on Codeforces.
I like ideating, designing systems, and organizing things.
My hobbies are writing, solving puzzles, choir singing, and playing Chopin.
👇 Scroll down for my recent experiences, products, and blog posts. 👇
Products
Latest blog posts
Active roles
Quantitative Systematic Trader
Susquehanna International GroupAfter a 4.5 month education in Susquehanna’s Bala HQ, I started working on the APAC options desk, focusing on execution.Tenor
VOX, Sydney Philharmonia ChoirsThis is not a professional choir, but performs to a high musical standard. I spent two months practicing my sight singing to pass the audition. So far in 2026, I have performed the following pieces with this non-professional but exceptional choir: Bach’s St. John Passion, “How To Train Your Dragon”, and “The Art of the Score: Music of the Lord of the Rings”.Head of Scientific Committee
Hong Kong Olympiad in Informatics Organizing CommitteeWe prepare competition and team selection test problems (I have authored 80+ problems so far), conduct training sessions, and other duties to ensure the competition seasons are run smoothly. The pipeline for preparing a problem involves description writing, test case creation, testing of correct and incorrect solutions, and writing editorials.