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John Kounelis (jk-brah)

About Software Engineer turned Application Security Engineer with 6 years of experience building and breaking web applications.
Current Role Senior Product Security Engineer @ ServiceNow
Location San Diego

Bug Bounty

  • Synack Red Team Top 100 Worldwide
  • 1st Place H1 US South LHE 2025
  • CVE-2026-21284

Education

  • BS Computer Science: University of Arizona
  • MS Cyber Security: Johns Hopkins University

Certifications

OSCP
Offensive Security
OSWE
Offensive Security
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