Information Security Administrator – Mid-Level Linux

Responsible for analytical services and operational support monitoring, following the client's standards and processes. Main activities and responsibilities: Configure, administer, and maintain security policies in Linux environments, ensuring system protection and compliance with institutional guidelines; Manage access controls, file permissions, groups, and user privileges on Linux servers and workstations; Configure, administer, and monitor firewall rules and other Linux infrastructure protection mechanisms; Monitor and analyze event and audit logs to identify suspicious activities, anomalous behaviors, and potential security incidents; Apply patches, security updates, and fixes to Linux operating systems following the organization's defined processes and standards; Implement hardening practices on Linux servers and workstations, reducing vulnerabilities and strengthening the security posture of assets; Perform periodic evaluations of security configurations, permissions, and access privileges, identifying inconsistencies and opportunities for improvement; Execute vulnerability scans on Linux servers, services, and workstations, supporting remediation and risk mitigation actions; Support security audit exercises, verifying adherence to internal policies, standards, and regulatory requirements; Evaluate the use of privileged accounts and segregation of duties.