Fred Qiu - Software Engineer at Facebook

Fred Qiu

Software Engineer at Facebook

Parkville, Maryland, United States

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Summary

🤩

Rockstar

🎓

Top School

Fred Qiu is a software engineer with a decade-plus track record building secure, high-performance backend systems and networking protocols, currently at Facebook. He brings deep C++ expertise and a security-first mindset, demonstrated by contributions to notable open-source projects like Facebook's fizz (TLS 1.3) and folly, where he improved ALPN handling, TLS certificate workflows, and TCP Fast Open support. His prior roles at Cisco, Sourcefire, Cavium, and Trustwave reflect experience across product-focused engineering, architecture, and security domains. With an MS in Computer Science from Johns Hopkins and a BS in Biophysics from Fudan, he combines rigorous academic training with pragmatic low-level systems work. Colleagues rely on him for robustness improvements and subtle protocol fixes—areas where small changes prevent large outages. Based in Parkville, Maryland, he blends hands-on implementation with an eye for maintainable, testable security features.

4 years of coding experience

14 years of employment as a software developer

Johns Hopkins University

Bachelor of Science (BS), Biophysics, Bachelor of Science (BS), Biophysics at Fudan University

Github Skills (20)

unit-testing10

alpn10

c-language10

ssl10

tls1210

tls1310

openssl10

cryptography10

network-security10

thrift10

cprogramming-language10

testing9

python9

integration-testing9

test-unit9

Programming languages (1)

C++

Github contributions (5)

facebookincubator/fizz

Jun 2021 - Jul 2022

C++14 implementation of the TLS-1.3 standard

Role in this project:

Back-end Developer & Security Engineer

Contributions:6 commits, 7 PRs, 4 pushes in 1 year

Contributions summary:Fred primarily contributed to the implementation of security features and improving the overall robustness of the TLS 1.3 implementation. Their work included adding functionality to enforce ALPN matching, enhancing logging for debugging handshake issues, and incorporating a mechanism to replace server certificates with verified leaf certificates. They also addressed low-level details related to byte buffer handling and testing. The contributions indicate a strong focus on security and low-level network protocol implementation within the project.

tlscppssltls13

facebook/folly

Jun 2021 - Jul 2022

An open-source C++ library developed and used at Facebook.

Role in this project:

Back-end Developer

Contributions:6 commits in 1 year

Contributions summary:Fred contributed to the `folly` library by implementing and modifying features related to SSL/TLS and TCP Fast Open (TFO) protocols. They enhanced the handling of Application-Layer Protocol Negotiation (ALPN) in AsyncSSLSocket, including parsing client-provided ALPNs and introducing options for ALPN matching. The user also worked on TFO support, adding code to skip tests based on kernel settings and modifying existing tests. Furthermore, the user refactored code by renaming variables.

facebookcppc-library

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