Samuel Vaclavik
Penetration Tester
Naperville, Illinois, United States
Summary
👤
Senior🎓
Top SchoolSamuel Vaclavik is a penetration tester with nine years of hands-on experience blending mathematics, development, and cyber operations, currently testing and hardening systems at Elton. He has a strong background in threat response and infrastructure—leading a seven-person team to stop a ransomware event, managing VMware clusters, VEEAM backups, and consolidating AD/Exchange to cloud environments for municipal IT. Samuel’s lab-to-production skill set spans offensive security, vulnerability research, and practical systems engineering, informed by a BS in Mathematics and Computer Science from Truman State. Based in Naperville, IL, he pairs low-level technical rigor with operational improvements that saved his city tens of thousands in networking costs, and he brings that cost-conscious, forensic mindset to penetration testing engagements.
9 years of coding experience
7 years of employment as a software developer
Bachelor of Science - BS Mathematics and Computer Science, Bachelor of Science - BS Mathematics and Computer Science at Truman State University
Github Skills (93)
low-level10
lldb10
gdb10
debugging10
external10
scanner9
linux9
python9
multithreading9
ctf9
reverse-engineering9
exploit9
rust8
webassembly8
emscripten8
Programming languages (13)
Github contributions (5)
prockallsyms/prockallsyms
Jun 2021 - Apr 2024
Contributions:2 pushes, 1 branch in 2 years 10 months
Dom-1/hackthis.co.uk
Jul 2016 - Dec 2017
HackThis!!
Contributions:4 PRs, 16 pushes, 2 branches in 1 year 5 months
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