Zi Wong
Software Development Engineer III at Amazon
Singapore, Singapore
Summary
👤
Senior🎓
Top SchoolZi Wong is a Software Development Engineer III with nine years of experience building backend services and payments APIs, most recently as a tech lead on Amazon Wallet. Based in Singapore, Zi has deep hands-on experience in scalable service design and performance tuning, and a history of progressing through multiple SDE roles at Amazon. Beyond backend systems, Zi contributes to open-source machine learning tooling—optimizing a PyTorch implementation of FaceBoxes for CPU/GPU performance and cleaner data augmentation pipelines. Known for improving test automation early in their career and for pragmatic code refactors, Zi blends operational rigor with a practical, performance-first mindset.
9 years of coding experience
9 years of employment as a software developer
Bachelor's Degree, Electrical and Computer Engineering, Bachelor's Degree, Electrical and Computer Engineering at University of Toronto - University of St. Michael's College
English, Chinese
Github Skills (7)
face-detection10
computer-vision10
pytorch10
python10
machine-learning9
deep-learning9
data-augmentation8
Programming languages (3)
Github contributions (5)
zisianw/FaceBoxes.PyTorch
Jan 2019 - Nov 2019
A PyTorch Implementation of FaceBoxes
Role in this project:
ML Engineer
ML EngineerContributions:10 commits, 2 PRs, 12 pushes in 10 months
Contributions summary:Zi primarily focused on implementing and optimizing the FaceBoxes model in PyTorch. They added timer functionalities for performance analysis, supported both CPU and GPU training/testing, and refactored code for better readability. Their contributions included updates to the data augmentation process and the `box_utils.py` file, demonstrating a focus on model training and performance.
pytorchfaceboxesface-detectionpytorch-implementation
zisianw/WIDER-to-VOC-annotations
Jan 2019 - Jan 2019
WIDER FACE annotations converted to the Pascal VOC XML format
Contributions:7 commits, 1 PR, 11 pushes in 8 days
pascalpascal-vocxml-formatannotationsxml
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