Justin Bollinger
Principal Security Consultant at TrustedSec
Toledo, Ohio, United States
Summary
🤩
Rockstar🎓
Top SchoolJustin Bollinger is a Principal Security Consultant with over a decade of hands-on experience designing and testing large-scale network infrastructures across enterprise, manufacturing, healthcare, higher education, and retail. He specializes in network penetration testing, PKI, VPNs, QoS, and complex LAN/WAN architectures, and has been designing and implementing Cisco Identity Services Engine (ISE) deployments since 2011 — including networks supporting over 150,000 endpoints. Justin pairs deep Cisco security product expertise (ISE, ASA, Sourcefire, Ironport) with practical Microsoft and Linux administration skills, making him a go-to for uncovering weaknesses in network infrastructure that many pen tests miss. At TrustedSec he leads and collaborates on engagements that blend offensive testing with remediation, and contributes to open-source tooling such as TrustedSec’s hate_crack where he improved Hashcat-based cracking workflows. Based in Toledo, he holds a B.S. in Computer Science and Engineering Technology and carries multiple Cisco and CNSSI certifications that reflect both breadth and operational depth.
11 years of coding experience
3 years of employment as a software developer
B.S Computer Science and Engineering Technology, B.S Computer Science and Engineering Technology at The University of Toledo
Github Skills (7)
hashcat10
python10
regex9
file-handling9
string-formatting8
subprocess8
string-format8
Programming languages (10)
Github contributions (5)
trustedsec/hate_crack
Jan 2018 - Oct 2021
A tool for automating cracking methodologies through Hashcat from the TrustedSec team.
Role in this project:
Full-stack Developer
Full-stack DeveloperContributions:2 reviews, 116 commits, 30 PRs in 3 years 9 months
Contributions summary:Justin primarily worked on `hate_crack.py`, a tool for cracking methodologies using Hashcat. Their contributions involved refactoring code, updating EOL characters, removing tabs, and modifying file open methods. They introduced and refactored the Quick Dictionary attack, allowing for the usage of additional rules beyond best64. The user also implemented various changes, including checks, updates, and logic to expand the functionality and improve the performance of existing features, such as the integration of bandrel's methodology and checks to ensure the use of config.json, enhancing the tool's overall usability.
bugbountysecurityinfoseccybersecuritypentesting
trustedsec/SeeYouCM-Thief
Jan 2022 - Sep 2022
Contributions:1 review, 27 commits, 10 PRs in 8 months
Find and Hire Top DevelopersWe’ve analyzed the programming source code of over 60 million software developers on GitHub and scored them by 50,000 skills. Sign-up on Prog,AI to search for software developers.