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Levy Zhao

PROFILE

Levy Zhao

Worked on embedding sharding and TBE integration within the pytorch/FBGEMM and pytorch/torchrec repositories, focusing on distributed systems and deep learning infrastructure. Developed features to enhance observability and reliability by introducing embedding table sharding metadata and improving shard context propagation in TBE construction, leveraging Python and PyTorch. Addressed stability in distributed caching by implementing deep copy isolation for sharding cache parameters, reducing cross-table mutation risks in multi-table workloads. Maintained strong traceability through explicit commit references and PR linkage, supporting future maintenance. The work demonstrated depth in distributed data engineering and contributed to more robust, maintainable embedding workflows in production environments.

Overall Statistics

Feature vs Bugs

67%Features

Repository Contributions

3Total
Bugs
1
Commits
3
Features
2
Lines of code
149
Activity Months2

Your Network

3486 people

Work History

July 2025

1 Commits

Jul 1, 2025

July 2025: TorchRec stability and correctness focus. Delivered a critical fix to the sharding cache parameter isolation by implementing a deep copy when constructing cache parameters, preventing unintended modifications across tables in the sharding plan. This change enhances reliability of distributed caching and reduces cross-table data mutation risks in multi-table workloads. Linked commits and tracing to PR #3219.

April 2025

2 Commits • 2 Features

Apr 1, 2025

Monthly summary for 2025-04 highlighting targeted engineering contributions to embedding sharding and TBE integration across FBGEMM and TorchRec to enhance observability, reliability, and distributed operation.

Activity

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Quality Metrics

Correctness100.0%
Maintainability86.6%
Architecture93.4%
Performance86.6%
AI Usage20.0%

Skills & Technologies

Programming Languages

Python

Technical Skills

Deep LearningDistributed SystemsMachine LearningPyTorchPythondata engineeringdistributed systems

Repositories Contributed To

2 repos

Overview of all repositories you've contributed to across your timeline

pytorch/torchrec

Apr 2025 Jul 2025
2 Months active

Languages Used

Python

Technical Skills

Distributed SystemsMachine LearningPythondata engineeringdistributed systems

pytorch/FBGEMM

Apr 2025 Apr 2025
1 Month active

Languages Used

Python

Technical Skills

Deep LearningDistributed SystemsMachine LearningPyTorch