Senior Cybersecurity & SOC Transformation Leader

Rei Francis De los Reyes

Senior Cybersecurity & Cloud Engineer

Rowland Heights, California +1-626-***-****] *************@*****.*** U.S. Permanent Resident Cybersecurity Leader SOC Transformation SIEM/SOAR Threat Hunting Cloud Security CEH CompTIA Security+

PROFESSIONAL SUMMARY

Cybersecurity leader with 18 years of international experience. Results-driven expert in Security Operations, SOC transformation, SIEM/SOAR implementation, incident response, and threat hunting. Proven ability to design and implement enterprise security programs aligned with business objectives, reduce risk, and improve operational efficiency. Strong background in ISO 27001 compliance, vulnerability management, and cloud security.

STRATEGIC SECURITY ACHIEVEMENTS

Reduced incident response time by 70% through SIEM/SOAR automation.

Built and scaled enterprise SOC operations.

Achieved and maintained ISO 27001 compliance.

Automated 60-75% of Tier 1 incidents using Google Chronicle and SOAR playbooks.

Improved security posture through risk-based strategies.

KEY SECURITY TRANSFORMATIONS

SOC Transformation Google Chronicle + SOAR Accenture (2025–2026)

Enterprise SOC Development Global Information Security Program ISS (2021–2024)

ISO 27001 ISMS Implementation Audit Readiness ISS (2015–2021)

Web Application Security OWASP Top 10 ADP (2012–2015)

Enterprise Security Solutions Deployment Aegis PeopleSupport (2010–2012)

Network Security & Access Control Administration PLDT (2008–2010)

AREAS OF EXPERTISE

Cybersecurity Leadership

Security Strategy SOC Operations Threat Hunting Incident Response Security Transformation Vulnerability Management Cloud Security

Governance, Risk & Compliance

GRC ISO 27001 PCI-DSS Risk Assessment Policy Enforcement Zero Trust NIST CSF

TECHNICAL ENVIRONMENT

Cloud: Azure, GCP, AWS

SIEM/SOAR: Google Chronicle, Azure Sentinel,

Security Tools: EDR, Vulnerability Scanners, DLP, Kali Linux, Firewalls

Frameworks: ISO 27001, OWASP, NIST, MITRE&ATTCK

PROFESSIONAL EXPERIENCE

Security Transformation Manager Accenture Philippines Jan 2025 – Mar 2026

Led SOC transformation initiatives including SIEM and SOAR implementation, improving detection and response capabilities.

Automated 60-75% of Tier 1 incidents using Google Chronicle and SOAR playbooks.

Reduced Mean Time to Contain (MTTC) by 70% through automation and process optimization.

Designed security architecture roadmaps to enhance enterprise resilience.

Associate Vice President Institutional Shareholder Services (ISS) Jan 2021 – Dec 2024

Headed the architecture, execution, and continuous optimization of the global enterprise information security program.

Spearheaded the end-to-end development, implementation, and operational maturity of the enterprise-wide SOC.

Directed and mentored a diverse, multi-functional team of cybersecurity professionals.

Maintained absolute compliance with internal security standards and refined incident response playbooks.

Senior Information Security Officer Institutional Shareholder Services (ISS) Sep 2015 – Jan 2021

Oversaw the continuous administration and lifecycle management of physical, logical, and network security.

Spearheaded the corporate vulnerability management program and facilitated deep-dive risk assessments.

Engineered and maintained enterprise ISMS to align with ISO 27001.

Senior Test Analyst ADP Aug 2012 – Jul 2015

Advanced security posture of web applications via penetration testing aligned with OWASP Top 10.

Maintained oversight of in-house application systems, improving anomaly detection.

Lead, InfoSec Implementation & Support Aegis PeopleSupport Nov 2010 – Aug 2012

Engineered and deployed enterprise-wide cybersecurity solutions across global platforms.

Spearheaded quarterly security inspections and source code analysis.

CERTIFICATIONS

Certified Ethical Hacker (CEH) EC-Council

CompTIA Security+

EDUCATION

Bachelor of Science in Information Technology Mapúa Institute of Technology

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