About

Hello! My name is Andrew Lo Zhi Sheng. I'm a Software Engineer at Squarepoint Capital and a recent Computer Science graduate from the National University of Singapore (NUS).

My interests lie in Backend Engineering, Computer Networks, and Database Systems and I've worked on a variety of data-intensive applications ranging from Market Data to KYC

Besides work, I lift, I run, and I'm a purple belt in Brazillian Jiu-Jitsu.

Work Experience

1. May 2025 - Present

   Software Engineer @ Squarepoint Capital

   • Building reliability tooling for Market Data systems
2. Jan 2024 - Dec 2024

   Backend Engineer Intern @ TikTok

   • Automated business license moderation processes by integrating third-party APIs, LLMs, and deduplication, reducing human moderation volume by 20%
   • Improved scalability of several Go and Python microservices to leverage asynchronous communication using pull-based Message Queues, reducing traffic spike-related failures by 100%
   • Constructed an automatic ML training and deployment pipeline with Spark and Python to train a classification model with recent data, improving model accuracy by 20%
3. May 2023 - Dec 2023

   Software Engineer Intern @ GovTech

   • Engineered features for micro-services for the Citizen Disbursement System using technologies such as AWS, Spring Boot, Apache Kafka, Docker, and Kubernetes, handling government payouts for up to 6 million citizens
   • Implemented an audit service from scratch with AWS Lambda, Terraform, Python, and GitLab CI, efficiently extracting millions of data records
   • Optimised application performance through code refactoring, reducing memory usage by over 95%
4. Jan 2023 - May 2023

   Software Engineer Intern @ Grab

   • Enhanced a self-help Web Portal by developing features utilised by several hundred GrabRentals drivers and staff
   • Automated business processes by creating a script to automatically generate invoice statements using MySQL, NodeJS, and AWS S3, saving dozens of man-hours per annum
   • Spearheaded communication between various teams including Operations and two Tech teams from Indonesia and Vietnam
5. Aug 2022 - May 2025

   Undergraduate Teaching Assistant @ National University of Singapore

   • Guided undergraduate students in lab and tutorial sessions, covering concepts such as OOP, Operating Systems, and Computer Organisation, achieving a teaching feedback rating of 4.5/5.0
6. May 2022 - Aug 2022

   Robotics Software Engineer Intern @ Robotics Innovation Lab, SUTD

   • Collaborated with researchers to develop an application to read and publish data from a smart glove to a Robot Operating System network using ROS Noetic, Python, Scikit-Learn, NumPy, and pandas
   • Developed scripts to collect data, train models, and recognise different hand gestures using machine learning in Python, eventually achieving a validation accuracy of 99% within 200 epochs

Projects