# Junsheng Pei

> Cloud Infra, AI Infra Engineer, EECS MS in UC Berkeley

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

Cloud infra.

## Work Experience
### Senior Software Engineer @ Google
Jan 2020 – Present | Sunnyvale, California, United States
AI Infra & Platforms
- TPU System
- Google Distributed Cloud
- Kubenetes

### Software Engineer Intern @ Walmart Labs
Jan 2019 – Jan 2019 | San Francisco Bay Area
• Added category bidding in campaign management for both search brand amplifier and consolidated ads to allow advertisers to target selective category keywords to dominate a particular category. (Play Framework, Java, Hibernate, Oracle, Cucumber)
• Published category bidding to Kafka and processed bidding messages in Apache Storm in real time and finally created category bidding query in Solr document and MySQL table for ad retrieval. (Kafka, Storm, Scala, Solr, MySQL)
• Modified ad search and ranking system to retrieve the relevant keyword bided or category bided ads without negative keywords, and return the ads with highest rank score when customer visited Walmart online store. (Docker, Jenkins)
• Increased the reach rate from 2% to 20-25% for search brand amplifier by prediction.

### Member in Large-scale Vision System Group @ Berkeley DeepDrive
Jan 2018 – Jan 2019 | San Francisco Bay Area
• Implemented data pipeline to achieve large-scale image classification system with Active Learning including parallel image scraping, downloading and uploading to Amazon mturk. (Python, Distributed System, Machine Learning).
• Conducted benchmarked report on the reading/writing performance of MongoDB, MySQL, LMDB, PostgreSQL and Dgraph.
• Upgraded the system database from LMDB to MongoDB which supports parallel writing and reading with Ray. (Ray, Database)

### SDE Intern - Java Developer in WPS @ Kingsoft
Jan 2018 – Jan 2018 | Zhuhai, Guangdong, China
API for document editing and saving in WPS. (Java, Android)


## Education
### Master of Engineering - MEng in Computer Science
UC Berkeley College of Engineering
Jan 2018 – Jan 2019

### Bachelor of Eng. in Electrical Engineering
Xi'an Jiaotong University
Jan 2014 – Jan 2018

### Non Degree in Computer Science
UC San Diego Extended Studies
Jan 2017 – Jan 2017


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

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