Ioannis Samantouros
Ioannis Samantouros

Offensive Security Engineer | OSCP Certified

Open to offers · Member since 12 Jul 2026
Message
Location
Barcelona, Spain
Desired salary
Unspecified
Work preference
Hybrid / Full Time
Experience level
Senior

About

Professional summary

OSCP-certified Offensive Security Engineer with extensive experience in leading red team engagements, vulnerability management programs, and advanced threat hunting. Proven track record in executing end-to-end penetration tests, developing custom automation for security assessments, and maturing crowdsourced security initiatives. Adept at bridging offensive findings and defensive remediation, with strong expertise in cloud security (Azure) and incident response. Committed to proactive threat simulation and delivering actionable, risk-based reporting to enhance organizational resilience.

Skills

19 capabilities

Experience

Career history

Senior IT Security Engineer / Red Team Lead HEXAGON GEOSYSTEMS

Lead comprehensive internal and external penetration testing using Pentera and manual exploitation. Spearhead the HackerOne program, improving triage and remediation workflows. Serve as EMEA regional backup for vulnerability management. Execute advanced L2 security investigations and threat hunting using KQL. Developed custom Python and PowerShell scripts to automate security workflows. Administered Azure AD security posture and designed compliance policies within Intune.

Technical Support Engineer / Team Lead WEBHELP SPAIN

Optimized security incident workflows for Google Workspace, specializing in authentication protocols, phishing detection, and log analysis via Wireshark and HTTP archives. Mentored junior engineers on security best practices and technical troubleshooting.

Owner / Manager I & Z SAMANTOUROU GP

Engineered a secure data management application using Python and Google Spreadsheets API, ensuring compliance with medical device distribution standards.

Education

Learning history

University of Piraeus

MSc, Digital Systems Security

MSc in Digital Systems Security.

Hellenic Open University

BSc, Computer Science

BSc in Computer Science.

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