Open to opportunities

christy zachariah

@christyzachariah

Message

Cybersecurity professional specializing in penetration testing, threat analysis, and vulnerability assessment.

Ireland

Message

What I'm looking for

I seek roles focused on penetration testing, adversary emulation, and incident/forensic work at organizations that value continuous learning, clear stakeholder communication, and measurable security improvements.

I am a cybersecurity professional pursuing an MSc in Cybersecurity with 3+ years of hands-on experience in security testing, threat analysis, and infrastructure assessment. I specialize in penetration testing, vulnerability assessments, and attack simulation aligned with MITRE ATT&CK.

My background includes roles as an Application Security Engineer at Infosys and freelance Security Consultant work where I conducted infrastructure and web application testing, forensic investigations, and delivered structured remediation guidance. I have led 20+ forensic investigations and improved incident response effectiveness through documented processes.

I prioritize clear stakeholder communication, practical remediation recommendations, and continuous professional development toward certifications like CompTIA Security+, CEH, and GIAC. I seek to help organizations strengthen their security posture through rigorous testing and pragmatic guidance.

Experience

Work history, roles, and key accomplishments

Current

Security Consultant

Current

Self-Employed

Nov 2024 - Present (1 year 2 months)

Deliver freelance penetration testing and vulnerability assessments on internal/external infrastructure and web applications, documenting findings and providing remediation guidance to improve client security posture.

Penetration Testing Vulnerability Assessment Application Security Test Infrastructure Report Writing Python Network Analysis Attack Simulation

Application Security Engineer

Infosys

Aug 2021 - Aug 2024 (3 years)

Conducted security assessments, forensic analysis, and threat hunting on compromised systems and infrastructure, delivering actionable remediation recommendations and mentoring junior team members.