# Ruijin Zhou

> Staff Software Engineer at Meta

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

My research interests include storage system, virtualization, big data, and computer architecture. I published several papers in those areas.

My speciaties include: Storage system, Operating System, Virtualization, Solid State Drive, and Phase Change Memory.

Proficient programming skills: C, C++, Python, Shell Script, Matlab Script. 

Virtualization platform: Xen, KVM, VMware ESXi

File Systems: BTRFS, ZFS, EXT4, VMFS, Virtual SAN

Similation tools: Simics, FeS2, Marss86, DRAMsim2, DiskSim.

## Work Experience
### Staff Software Engineer @ Meta
Jan 2022 – Present | Menlo Park, CA
Content ecosystem (H2 2023)
Video/Audio/Text Similarity Understanding.


AI Dev Infra (H2 2022):
Compatibility solution for Model release

AI Platform (H1 2022):
Training efficiency for ML models.

### Staff Engineer @ VMware
Jan 2019 – Jan 2022
Working on automatic performance tuning using ML techniques. 

Worked automatic performance regression detection system using various machine learning algorithms.

Worked on Defragmentation caused by deduplication and compression

### Senior Member Of Technical Staff @ VMware
Jan 2016 – Jan 2019 | Palo Alto, CA
Working on:
========= VMware Cloud on AWS ============
1. IO performance of VSAN on AWS
2. VSAN IO performance under Failure Scenario (host failure/disk failure)

========= Distributed Storage System (VSAN) ===========
1. Addressing Data fragmentation in a deduplication/compression Environment 
2. Object placement / fault domains. 

========= Effectiveness of Storage Management ===========
1. Effectiveness Study of SDRS (Data/object placement)

### Member of Technical Staff @ VMware
Jan 2015 – Jan 2016 | Palo Alto, CA
Working on:
VSAN performance (Deduplication/Compression, RAID5/6, etc.) 
Prototype for automatic performance debugging framework (machine learning, etc.)
vSphere Storage IO Control (SIOC)

### Research Assistant @ University of Florida
Jan 2010 – Jan 2015
Research area includes storage virtualization, live virtual machine migration, live virtual storage migration, x86 simulation, memory management, Phase Change Memory, Solid State Drive.

### Member of Technical Staff Intern @ VMware
Jan 2014 – Jan 2014 | Palo Alto CA
Develop a tool to analyze the performance of VSAN (Virtual SAN), which is the VMware's software solution for distributed storage system.

### Member of Technical Staff Intern @ VMware
Jan 2013 – Jan 2013
Storage performance analysis, analyzing guest file system impact on virtualized storage system.


## Education
### Doctor of Philosophy (PhD) in Computer Engineering
University of Florida

### Master's degree in Computer Engineering
University of Florida

### Bachelor in Automatic Control
Xiamen University


## Contact & Social
- LinkedIn: https://linkedin.com/in/ruijin-zhou-41118033
- Portfolio: https://sites.google.com/site/ruijinzhouruijinzhou/

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