Zhiyi Zhang
Senior Research Scientist at Meta
Menlo Park, California, United States
Summary
🤩
Rockstar🎓
Top SchoolZhiyi Zhang is a Senior Research Scientist at Meta with a decade of experience bridging security-focused systems research and production software engineering. He earned a Ph.D. in Computer Science from UCLA, where he combined doctoral research with teaching, and previously interned at Facebook and Alibaba. At Meta and in open source, he has shipped low-level security work—most notably contributing to Facebook’s fizz TLS-1.3 C++ implementation by adding NSS key log support, Merkle tree structures, and batch-signature benchmarks—demonstrating both cryptographic insight and performance engineering. Based in Menlo Park, he blends academic rigor with pragmatic engineering to harden TLS stacks and scale secure protocols in real-world services.
10 years of coding experience
5 years of employment as a software developer
Bachelor’s Degree, Bachelor’s Degree at Nankai UniversityDoctor of Philosophy (Ph.D.), Doctor of Philosophy (Ph.D.) at University of California, Los Angeles
Chinese, English
Github Skills (11)
mtls10
c-language10
tls1210
merkle-tree10
cprogramming-language10
tls1310
cryptography10
libtls10
security10
benchmark9
benchmarking9
Programming languages (13)
Github contributions (5)
facebookincubator/fizz
Jun 2020 - Aug 2020
C++14 implementation of the TLS-1.3 standard
Role in this project:
Back-end Developer & Security Engineer
Back-end Developer & Security EngineerContributions:13 commits in 2 months
Contributions summary:Zhiyi primarily focused on implementing and integrating features related to Transport Layer Security (TLS) within the C++ codebase. A significant portion of the work involved adding support for the NSS key log file, enabling the dumping of TLS secrets for debugging purposes. The user also contributed to the development of a Merkle Tree data structure, likely for use in batch signatures, and integrated batch signature functionality into the server and client benchmark tools, demonstrating involvement in improving the security and performance of the TLS implementation.
tlscppssltls13
Zhiyi-Zhang/ndnSIM-V2X-NDN-Downloading
Feb 2018 - Nov 2019
Contributions:70 commits, 51 pushes, 7 branches in 1 year 8 months
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