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Victor Alejandro Flores Rivera

@victoralejandroflore

Cybersecurity leader at SUBASTAS VENTURA who reduced critical vulnerabilities by 90% and strengthened cloud security and ISO controls.

Mexico

Message

At SUBASTAS VENTURA, I operated SentinelOne EDR/XDR and led vulnerability and patch management, reducing the impact of security incidents by 95% and critical vulnerabilities by 90%.

I coordinated the transition from ISO/IEC 27001:2013 to 27001:2022 and configured Azure and AWS security controls. I also supported ISO audits that achieved 100% accreditation.

At PROSA, I led CIS Benchmark hardening across 90% of production assets and implemented a CyberArk privileged access management program. My work has also included security compliance, incident response, cloud security, and technical team leadership.

Experience

Work history, roles, and key accomplishments

Líder de Seguridad de la Información

Subastas Ventura

Jun 2024 - Jun 2026 (2 years)

Operated and administered a centralized AI/ML-based EDR/XDR solution (SentinelOne), achieving 95% reduction in security incident impact. Led the vulnerability management program and coordinated the transition to ISO/IEC 27001:2022.

Especialista Líder de Seguridad Tecnológica

PROSA

Apr 2019 - Feb 2024 (4 years 10 months)

Designed and led CIS Benchmark hardening across 90% of production assets. Implemented vulnerability management and PAM programs, and operated EDR/SIEM platforms to enhance detection and response.

Crowdstrike Tanium Zscaler Darktrace CyberArk Splunk Wazuh Ansible Trend Micro Cloud One Workload Security WSUS ISO 27001 PCI DSS CNBV CUB MITRE ATT&CK

Ingeniero de Auditoría, Procesos y Seguridad

Praxis

Apr 2017 - Apr 2019 (2 years)

Executed technical IT audits under COBIT and CMMI Level 5, and implemented security controls within Secure SDLC. Reduced project release times by 35% through automation of security testing.

SonarQube Redmine CAAT ACL OWASP COBIT NIST CMMI Level 5

Coordinador de Operaciones de Tarificación

Telefónica Movistar

Nov 2015 - Jan 2017 (1 year 2 months)

Executed data integrity audits and load/stress testing on web servers, ensuring operational stability before production deployments. Improved billing system availability to 99.9%+ through root cause analysis.

Líder de Proyecto

Indra / Telefónica Movistar

Dec 2008 - Aug 2015 (6 years 8 months)

Led multi-platform hardening (Linux, Unix, Solaris, Windows) under CIS Benchmark, strengthening security posture of critical servers. Ensured 99.9% availability of critical infrastructure through proactive monitoring and maintenance.

Especialista de Soporte de Aplicaciones

Grupo Salinas

Mar 2008 - Dec 2008 (9 months)

Provided first-level support for incident resolution in the point-of-sale (POS) system for LATAM operations, ensuring service continuity. Participated in development, change control, and deployment of POS improvements.

Desarrollador Frontend/Backend

Ayuntamiento de Puebla

Jan 2004 - Jan 2008 (4 years)

Developed and maintained the institutional website and payroll system, ensuring proper functioning and availability. Developed the new property tax collection system, contributing to process modernization.