Alexandr Nedvedicky
Software Engineer at OpenSSL Corporation
Prague, Czechia
Summary
🤩
Rockstar🎓
Top SchoolAlexandr Nedvedicky is a seasoned software engineer with 10+ years of experience focused on systems, security and protocol-level C development, currently maintaining and evolving the QUIC stack in the OpenSSL library. He has a long track record at Oracle and Sun, working on sustained engineering and low-level networking/security components, and earlier helped build firewall and VPN products at Kerio. Alexandr is an active open-source contributor to high-impact projects like OpenSSL and MIT krb5, where his work centers on bug fixes, memory-leak remediation and improving protocol robustness—efforts that directly affect internet security infrastructure. He combines deep troubleshooting skills with pragmatic code improvements to support portability (e.g., OpenBSD) and stability under production load. Based in Prague, he brings a quietly persistent approach to hard-to-reproduce bugs and complex crypto/networking issues. Notably, his contributions reflect a focus on making critical security libraries safer and more reliable for downstream users.
10 years of coding experience
18 years of employment as a software developer
University of West Bohemia, Pilsen
Github Skills (16)
c1710
debugging10
mtls10
memory-management10
debug10
http10
ssl10
tls1210
c1110
kerberos10
quic10
cryptography10
tls1310
libtls10
network-programming9
Programming languages (9)
Github contributions (5)
openssl/openssl
Dec 2023 - Apr 2025
TLS/SSL and crypto library
Role in this project:
Back-end Developer
Back-end DeveloperContributions:477 reviews, 73 PRs, 1 branch in 1 year 3 months
Contributions summary:Alexandr primarily contributed to the OpenSSL library, specifically focusing on improving the HTTP client and QUIC functionality. Their work includes bug fixes for memory leaks and crashes, the implementation of server address validation through retry packets, and ensuring proper functioning of existing code. Additionally, the user implemented improvements to the code base to support OpenBSD and handle potential issues.
crypto-librarycryptographyssltlscrypto
krb5/krb5
Feb 2018 - Jun 2022
mirror of MIT krb5 repository
Role in this project:Backend Developer
Backend DeveloperContributions:23 commits, 34 PRs, 42 comments in 4 years 4 months
Contributions summary:Alexandr primarily contributed to fixing memory leaks and improving code quality within the Kerberos 5 project. Their work involved addressing memory management issues in areas like test authdata servers, PKINIT code, and the KDC. Additionally, they improved output parameter handling and fixed build issues. The contributions reflect a focus on software stability and security.
krb5mitlinuxwindows
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