# Jun Chen

> Principal Engineer at Salesforce

Location: San Francisco Bay Area, United States
Profile: https://flows.cv/junchen1

Specialties:

Parallel & distributed database systems. Database kernel. Concurrency control, distributed transaction management. Distributed query processing. Replication.

Parallel and distributed computing. Middleware. High performance communication protocol design/implementation, flow control, congestion control. TCP, HTTP, P2P. Network programming. 

Performance analysis. Scalability. 
 
Security, cryptographic protocols.

System software development(Win32 APIs, Unix/Linux system calls). kernel mode protocol driver.

## Work Experience
### Principal Engineer @ Salesforce
Jan 2020 – Present | San Francisco Bay Area
Build cloud native OLTP database system.

### Principal Engineer @ Stealth Startup
Jan 2018 – Jan 2020 | San Francisco Bay Area
Research and prototype secure container that fully encrypts in-memory database systems while maintaining the performance, leveraging hardware memory encryption engine and Intel SGX based virtualization technologies. To get a flavor of the work, here are a few interesting joint researches in this area from database, OS and hardware architecture (secure hardware) communities:

https://petsymposium.org/2019/files/papers/issue3/popets-2019-0052.pdf
https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=8418608
http://www.fkerschbaum.org/dbsec17a.pdf
https://eprint.iacr.org/2016/086.pdf

### Database Kernel Architect / Principal Engineer @ Huawei Technologies
Jan 2016 – Jan 2018 | San Francisco Bay Area
Research and build distributed transaction management system. Distributed lock manager, distributed deadlock detection (distributed 2PL) and their integration with the record access layer, 2PC and consensus (for each partition level replication group).

A side project: graph database and graph processing engine.  Graph partition research. Reverse-engineered Titan/Janus graph database internals.

### Special Projects @ eBay
Jan 2016 – Jan 2016 | Greater Seattle Area
Research and development multi-dimensional range query index over key-value store.

### Member of Technical Staff @ SpaceCurve Inc.
Jan 2012 – Jan 2015 | Greater Seattle Area
Real-time, distributed and massively parallelized, spatial-temporal database system: built high performance Http/Rest API servers(a.k.a the Front nodes) of SpaceCurve's database cluster, inter-engine communication fabric, data ingestion pipeline, query engine and distributed spatial JOIN operator, replication controller and rebalancer(for data partitions).

http://www.jandrewrogers.com/2015/10/08/spacecurve
http://www.jandrewrogers.com/2015/03/02/geospatial-databases-are-hard/

### Sr Software Engineer @ Microsoft Corp.
Jan 2010 – Jan 2012 | Redmond
Live Mesh / SkyDrive / OneDrive: designed and implemented Windows Push Notification
Protocol (WNS protocol). Designed and implemented cross-platform (Windows and Mac) P2P
file synchronization platform and library.

### Sr Software Engineer @ Citrix Systems Inc.
Jan 2006 – Jan 2010
Remote Desktop: designed and implemented DVC (Dynamic Virtual Channel) protocol on top of
ICA protocol. This includes the client side API and protocol library and the server side API and
kernel mode protocol driver. (The purpose of DVC is for PnP device remoting for remote
desktop). Designed and implemented XenDesktop virtual machine management API.

### Software Engineer in Test @ Microsoft via Exell Data
Jan 2005 – Jan 2006
Test automation for MSN VoIP client platform (which enables MSN Messenger to connect to Public Switched Telephone Network (PSTN)).

### Software Engineer @ Amazon.com
Jan 2004 – Jan 2005
Contributed to the design, implementation and operation of Amazon.com’s tax and surcharge
cloud services.


## Education
### Master of Science (M.Sc.) in Computer Science
Carleton University

### Bachelor of Science (B.S.) in Computer Science
Nanjing University


## Contact & Social
- LinkedIn: https://linkedin.com/in/jun-chen-6880017

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Source: https://flows.cv/junchen1
JSON Resume: https://flows.cv/junchen1/resume.json
Last updated: 2026-04-12