KARTHIK

AVAILABLE FOR SECURITY CONSULTING


WHO I AM

ABOUT ME

I am Karthik S Sathyan, a seasoned cybersecurity specialist with over 2+ years of experience in vulnerability research, penetration testing, and responsible disclosure. My passion lies in discovering and helping fix security vulnerabilities before they can be exploited by malicious actors. Throughout my career, I've worked with organizations of all sizes, from startups to Big companies, helping them strengthen their security posture through meticulous assessment and practical recommendations.

My Approach to Security

My approach to security combines technical expertise with a deep understanding of how real attackers think and operate. I believe that effective security isn't just about finding vulnerabilities—it's about understanding the full context of how these weaknesses could be exploited in the real world. This perspective allows me to provide not just technical findings, but actionable insights that help organizations truly improve their security posture.

Expertise & Skills

Vulnerability Research

  • Web Application Security Testing
  • API Security Assessment
  • Mobile Application Security
  • Cloud Infrastructure Security
  • Source Code Review

Technical Expertise

  • Network Penetration Testing
  • Malware Analysis
  • Reverse Engineering
  • Exploit Development
  • Security Architecture Review

Platforms & Tools

  • HackerOne & Bugcrowd
  • Burp Suite Professional
  • Metasploit Framework
  • SQLMap & Nmap
  • Custom Exploit Development

Achievements

  • Reported 20+ vulnerabilities to various organizations
  • Received multiple awards for responsible disclosure
  • Published 5+ research blogs on security topics
  • Contributed to open-source projects
  • Participated in security competitions
  • Build Security Tools for Hacking
  • Contributed to open-source security projects
  • Participated in CTF Competitions

Certifications

  • Protect Sensitive Data with Data Loss Prevention Skill Badge from Google
  • Mitigate Threats and Vulnerabilities with Security Command Center Skill Badge from Google
  • CompTIA Cybersecurity Analyst+: Cloud Computing & Cybersecurity from Skillsoft/Infosys Springboard
  • CompTIA Cybersecurity Analyst+: Digital Forensics from Skillsoft/Infosys Springboard
  • Certified Ethical Hacking From Scratch From Udemy
  • Ethical Hacking Vulnerability Research From Udemy

Contact

karthikssathyan1@gmail.com

© 2025 Karthik S Sathyan. All rights reserved.