Marc Smeets
IT Security Specialist, Red Teamer & Co-founder at Outflank
Randstad, Netherlands
Summary
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Rockstar🎓
Top SchoolMarc Smeets is an IT security specialist, red teamer and co-founder with nine years of dedicated experience leading offensive security engagements and helping organisations harden their defenses. Based in the Randstad, he combines hands-on ethical hacking with public speaking and training at events like SANS, BruCON and FIRST, translating complex attack techniques into actionable blue team improvements. His background spans consultancy and advisory roles at KPMG and Linq42, plus early systems and network engineering, giving him a rare blend of enterprise process knowledge and practical technical tradecraft. Certified CISSP, CISA and OSCP/OSWP, he focuses on realistic adversary simulations and pragmatic security recommendations rather than theoretical checklists. Known for being a "pain-in-the-ass for blue teams," he pushes defenders to close real gaps while also coaching them to do so. Outside of engagements he mentors and guest-lectures, turning offensive insights into teachable, repeatable defensive practices.
9 years of coding experience
1 year of employment as a software developer
Bernardinus collegeCISA, CISA at ISACA - CISAOffensive Security Certified Professional, Offensive Security Certified Professional at Offensive Security - OSCPMSc, MSc at University of AmsterdamEMITA, EMITA at Erasmus University RotterdamOffensive Security Wireless Professional, Offensive Security Wireless Professional at Offensive Security - OSWPCISSP, CISSP at ISC² - CISSPStudent researcher BSc, Student researcher BSc at Tennessee Technological UniversityBSc, BSc at Zuyd Hogeschool | Zuyd University of Applied Sciences
Github Skills (66)
security10
elasticsearch10
monitoring10
logstash10
elastic10
kibana10
usability10
endpoint-security7
redirect7
correlation6
dotnet6
active-directory6
csharp6
dotnet-core6
information-security5
Programming languages (9)
Github contributions (5)
outflanknl/RedELK
Oct 2018 - Dec 2022
Red Team's SIEM - tool for Red Teams used for tracking and alarming about Blue Team activities as well as better usability in long term operations.
Contributions:18 releases, 14 reviews, 545 commits in 4 years 2 months
kibanalogstashred-teamsmonitoringterm
outflanknl/PasswordDump2ELK
Jan 2018 - May 2021
Contributions:2 pushes, 1 branch, 1 comment in 3 years 4 months
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