René Fischer
Tech Lead Open Source Projects at Zentrum Digitale Souveränität (ZenDiS)
Bochum, North Rhine-Westphalia, Germany
Summary
🤩
Rockstar🎓
Top SchoolRené Fischer is a tech lead and security-focused software engineer with 11 years of experience building and hardening C++ systems and shared components for enterprise and open-source projects. Currently leading Open Source Projects at Zentrum Digitale Souveränität, he previously ran shared components and DevOps teams at Rohde & Schwarz Cybersecurity, raising code-quality standards with tools like clang-tidy, ASan and libFuzzer. His background includes leading BSI-backed cryptography projects and contributing security and build improvements to the well-regarded Botan cryptography toolkit, including PKCS#8 handling and XMSS X.509 support. A code-level quality fanatic with an M.Sc. in IT Security from Ruhr-Universität Bochum, René combines hands-on vulnerability-aware engineering with practical process design for rigorous change control and code review.
11 years of coding experience
11 years of employment as a software developer
Master of Science (M.Sc.), IT Security, very good (85), Master of Science (M.Sc.), IT Security, very good (85) at Ruhr-Universität Bochum
English, Turkish, Russian
Github Skills (14)
crypto10
crypt10
mtls10
c-language10
tls1210
pkcs10
cprogramming-language10
x50910
tls1310
cryptography10
libtls10
ios8
clang8
clangd8
Programming languages (12)
Github contributions (5)
randombit/botan
Mar 2015 - Sep 2022
Cryptography Toolkit
Role in this project:
Back-end Developer & Security Engineer
Back-end Developer & Security EngineerContributions:37 reviews, 43 commits, 162 PRs in 7 years 7 months
Contributions summary:René made multiple contributions related to enhancing the security and functionality of the cryptography toolkit. This included increasing the default key size for the keygen tool, adding a new tool for processing PKCS#8 keys, and addressing build issues by correctly setting compiler flags for iOS. Furthermore, they updated the build instructions and added improvements to the documentation. The user's work also touched upon incorporating XMSS X.509 certificates.
cryptographycryptocryptography-librarytlsx509
Rohde-Schwarz/TPMManager
May 2015 - Jan 2023
TPM 1.2 management tool with an easy-to-use graphical user interface
Contributions:2 releases, 14 commits, 7 PRs in 7 years 9 months
graphical-user-interface
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