Walter Augusto dos Santos Filho

Led DevSecOps and threat modeling initiatives integrated into the software development lifecycle. Managed web and mobile vulnerability programs, performed penetration testing on critical payment systems, and represented cybersecurity to ensure PCI DSS/PIN/SLC/MPoC compliance.

Conducted penetration tests and managed vulnerabilities across web, infrastructure, mobile, and IoT environments. Ensured audit compliance and ANTT regulatory requirements, managed patch cycles, and ran phishing simulations while representing cybersecurity in cross-functional projects.

Performed penetration testing, DevSecOps integration, threat modeling, and threat intelligence for a regulated insurance environment. Managed vulnerability programs and delivered security training and phishing exercises to support SUSEP-regulated compliance and audits.

Deployed and operated a security stack including DLP, FIM, web access control, USB blocking, and SIEM. Authored security policies and procedures, executed penetration tests and security control reviews, and ran company-wide cybersecurity awareness programs to support LGPD/GDPR compliance.

Managed vulnerability programs and conducted penetration tests across Latin American operations. Ensured PCI DSS/ISO 27000/SOx/NIST compliance while operating DLP/FIM/SIEM platforms, and developed security policies and awareness training for regional teams.

Administered antispam and proxy tools, and supported incident management with access controls and vulnerability tracking. Assisted PCI DSS audit processes and related compliance activities.

Administered firewalls, DNS, and proxies while supporting network segmentation and troubleshooting. Managed VLAN connections and performed routine operational tasks to maintain network security controls.

Completed a bachelor's degree in information systems.