# Weiji Huang

> Production Engineer, Software Engineer | Site Experience & Reliability

Location: San Francisco Bay Area, United States
Profile: https://flows.cv/weiji

Having 2yr YoE in Production Engineering and Software Engineering. Past experience includes Commerce integrity infra, autonomous truck onboard infra, big data, and infra.

## Work Experience
### Software Engineer @ EarnIn
Jan 2023 – Present | 山景城, CA

### Production Engineer @ Meta
Jan 2021 – Jan 2023 | Menlo Park, California, United States
- Implemented an auto-backfill tool resending unfinished 500K-1M/day listings for integrity review automatically.
- Identified random OOM issues in production services and built a robust error boundary for Marketplace integrity review systems that avoids 3-5M/day review failures, by migrating the service to serverless computing.
- Built a system to automatically turn off erroneous integrity models/static rules within 30min of detection.
- Established a framework to migrate integrity model training datasets with feature sizes' scalability (expected to be over 1,000), using code generation.
- Led Integrity infra asset discovery to understand over 1,000 asset usage and upstream lineage for privacy review.

### Software Engineer @ TuSimple
Jan 2021 – Jan 2021 | San Diego, California, United States
- Implemented three frontend features to support truck onboard data visualization in Vue.js.
- Optimized truck data status page generation, from 120GB to 7GB memory usage, by changing the data access to be on demand in Python.
- Wrote thorough test units for onboard infra tools with 99\% coverage using Python unittest.
- Ran E2E automated integration tests for onboard infra tools, for over 400 sample cases, using Bash scripts.

### Software Engineer @ TAMMIRA
Jan 2020 – Jan 2021 | Los Angeles, California, United States
- Conducted dogfooding sessions to all functionalities with the dev team and collected bugs with the designer.
- Fixed 90\% UI/UX bugs around the whole iOS app using React Native and launched the first production ver.
- Developed video session scheduling, video call, Sign in with Apple, and session reviews in Swift, Objective-C and React Native, through Agora API.

### Production Engineer @ Facebook
Jan 2020 – Jan 2020 | Menlo Park, California, United States
- Collected package usages over all Python scripts in Facebook code repo by analyzing build files.
- Improved internal Python reverse dependency tool from 90\% precision to 99.9\%.
- Queried running status of all Facebook Python scripts on all Facebook servers to understand 3rd package usage.
- Created alerts to detect highly used 3rd Python packages on freshness, usages and CVEs (publicly disclosed cybersecurity vulnerabilities).

### Software Intern @ Hikvision
Jan 2019 – Jan 2019 | Shanghai City, China
- Improved special car plate recognition by augmenting the dataset, precision from 63\% to 92\% using Caffe.
- Reduced CNN parameters and computation from 35m to 0.3m with pruning methods and < 1\% perf loss.
- Implemented an efficient data augmenting algorithm for over 200,000 images within minutes.

### Software Engineer @ Logic Solutions, Inc.
Jan 2018 – Jan 2018 | Shanghai City, China
-Updated course selection options to be real-time changing based on users behavior.
- Found the issue of course overlapping and implemented an algorithm to reduce pre-register course conflicts.
- Restructured back-end data flow to support real-time course registration status in Spring framework.


## Contact & Social
- LinkedIn: https://linkedin.com/in/weijihuang

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Source: https://flows.cv/weiji
JSON Resume: https://flows.cv/weiji/resume.json
Last updated: 2026-03-22