Administrador em Segurança da Informação | Linux – Sênior

Accountabilities:

• • Configure and manage Linux security policies, including access controls, file permissions, firewalls, and privileged-user management.
  • Monitor Linux logs and SIEM alerts to identify suspicious activity, anomalies, vulnerabilities, and potential security incidents.
  • Apply security patches, updates, and hardening practices while ensuring systems remain aligned with internal security standards.
  • Conduct security and compliance audits, vulnerability assessments, file-integrity checks, and reviews of user privileges and segregation of duties.
  • Configure and maintain Linux security technologies, including iptables/UFW, SELinux/AppArmor, SSH, LDAP, encryption solutions such as LUKS, and MFA.
  • Document, investigate, and support the response to security incidents, including compromised Linux environments, malware, and other threats.
  • Perform forensic analysis when required to identify attack vectors, impacts, and opportunities for remediation.
  • Develop resilient and secure Linux architectures using network segmentation, load balancing, granular controls, and other measures to reduce attack surfaces.
  • Support advanced security testing and simulations to identify weaknesses and strengthen defensive controls.
  • Develop and maintain Bash, Python, or similar scripts to automate security activities such as containment, account management, and malware remediation.
  • Design and maintain ransomware prevention, detection, backup, recovery, and disaster-response strategies.
  • Prepare technical reports covering security posture, incidents, vulnerabilities, compliance, and performance indicators.
  • Collaborate with internal teams on security investigations, improvements, and other information-security initiatives as required.

  Requirements:

  • Bachelor’s degree in Information Technology, Computer Science, Cybersecurity, or a related technology field.
  • Professional experience in information security and/or Linux environments, with experience demonstrable through formal employment or contractor documentation.
  • ITIL 4 training with a minimum workload of 12 hours.
  • Official ITIL 4 Foundation certification or higher.
  • Linux Professional Institute LPIC-3 Security certification.
  • At least one of the following certifications: ECSA (EC-Council Certified Security Analyst), CySA+ (CompTIA Cybersecurity Analyst), ECIH (EC-Council Certified Incident Handler), or CSIH (Certified Specialist Incident Handler).
  • Strong practical knowledge of Linux security administration, access management, hardening, firewalls, vulnerability management, logging, and security monitoring.
  • Ability to investigate incidents, analyze security events, identify root causes, and recommend effective remediation measures.
  • Experience with scripting and automation, particularly using Bash and/or Python, is highly relevant to the role.
  • Strong analytical, problem-solving, documentation, and communication skills, with the ability to work independently in a senior-level security environment.

  Benefits:

  • 🏠 100% remote work model.
  • 🏥 Health insurance through Hapvida, Bradesco, or Unimed, according to applicable regional collective bargaining terms.
  • 🦷 Dental insurance through Hapvida Odonto or Bradesco Dental.
  • 🍽️ Meal or food allowance.
  • 🛡️ Company-funded life insurance.
  • 💪 TotalPass.
  • 💊 Pharmacy benefits.
  • 🎓 Partnerships and discounts with educational institutions.
  • 📚 Access to a corporate education platform.
  • 👶 Welcome kit for new babies.
  • 🧠 Access to the Moodar platform.