# Qian Zhengyin

> Principal Software Engineer at Roblox

Location: Berkeley, California, United States
Profile: https://flows.cv/qianzhengyin

## Work Experience
### Principal Software Engineer @ Roblox
Jan 2022 – Present | California, United States
Database as a service and data movement Infrastructure

### Manager / Staff Software Engineer @ Google
Jan 2020 – Jan 2022 | Mountain View, CA
Led a cross-functional team of 5 engineers to architect and scale the end-to-end AI Assistant ecosystem for the Smart Home, balancing technical excellence with product vision.

1. Responsible for the full-stack user journey, integrating Speech-to-Text (STT), Natural Language Understanding (NLU), multi-modal query execution across local and cloud environments, and the final Text-to-speech (TTS) 

2. Designed and evolved the core Smart Home Data Model and high-throughput pipelines, enabling the system to reason over complex, multi-device home topologies with tens of millions of smart home devices.

3. Spearheaded the design and governance of public-facing Home APIs, enabling seamless integration for thousands of 3rd-party device partners and expanding the Google Home footprint.

### Senior Software Engineer @ Google
Jan 2018 – Jan 2020 | Mountain View, California, United States

### Software Engineer @ Google
Jan 2015 – Jan 2018 | Mountain View
Google Assistant, Smart Home.

### Software Engineer @ Oracle
Jan 2013 – Jan 2015 | Santa Clara


## Education
### Master's degree in Electrical Engineering and Computer Science
University of California, Berkeley

### Bachelor's degree in Engineering
National University of Singapore


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

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Source: https://flows.cv/qianzhengyin
JSON Resume: https://flows.cv/qianzhengyin/resume.json
Last updated: 2026-04-12