Sam Clark
Software Development Engineer at Amazon Web Services (AWS)
Cambridge, Massachusetts, United States
Summary
🤩
Rockstar🎓
Top SchoolSam Clark is a Software Development Engineer based in Cambridge, MA with 10 years of experience building secure backend systems and testing infrastructure. Currently at AWS, he brings a strong security focus demonstrated by contributions to the widely used aws/s2n-tls project—integrating TLS libraries with tools like SSLyze and improving PKI and certificate testing. His background spans defense research at Raytheon BBN and academic research and teaching at the University of Vermont, giving him a blend of rigorous research habits and practical engineering. Sam’s work emphasizes testability and interoperability in security-critical code, and he has a track record of making complex certificate and protocol scenarios easier to validate in CI-driven environments.
10 years of coding experience
4 years of employment as a software developer
Master of Science - MS, Computer Science, Master of Science - MS, Computer Science at University of VermontComputer Science, Computer Science at Champlain College
Github Skills (12)
c1710
security10
mtls10
tls1210
c1110
openssl10
tls1310
cryptography10
libtls10
testing10
ssl9
c999
Programming languages (5)
Github contributions (5)
aws/s2n-tls
Jan 2022 - Jan 2023
An implementation of the TLS/SSL protocols
Role in this project:
Back-end Developer & Security Engineer
Back-end Developer & Security EngineerContributions:3 releases, 1554 reviews, 76 commits in 1 year
Contributions summary:Sam contributed to the integration and testing of the s2n-tls library with external security tools like SSLyze, as well as the implementation of tests for OpenSSL's client and server functionality. They added functionality to the test infrastructure to make it easier to test and validate a variety of certificate configurations, including client certificate validation and the testing of security protocols. They addressed integration of PKI (Public Key Infrastructure) related components such as the OpenSSL trust store, and certificate status request.
cryptographysslc99tlscrypto
goatgoose/s2n-tls
Feb 2022 - Apr 2025
s2n : an implementation of the TLS/SSL protocols
Contributions:7 PRs, 1448 pushes, 203 branches in 3 years 2 months
sslja3tlsssl-tlsssl-certificate
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