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Portobello

Exciting New Fashion Game - forward Thinking in a Changing World

Mid-level Information Security Analyst – Detection, SIEM, Perimeter, NGFW

Security AnalystSecurity AnalystFull TimeRemoteSeniorTeam 1-10Since 2020H1B No SponsorCompany SiteLinkedIn

Location

Brazil

Posted

4 days ago

Salary

0

Seniority

Senior

Professional CertificatePortugueseFirewallsLinuxOpen SourcePythonTCP/IP

Job Description

Mid-level Information Security Analyst – Detection, SIEM, Perimeter, NGFW

Portobello

• Operate and support the maintenance of the SIEM platform, ensuring correct collection of log sources, and the integrity and quality of received data. • Support the creation, review and fine-tuning of detection rules and use cases to reduce false positives and optimize alerts. • Operate and administer Next-Generation Firewalls (NGFW): controlled implementation of access rules, NAT, VPNs, justification documentation, and periodic review of orphaned rules. • Actively support network segmentation activities, traffic rules, and perimeter hardening. • Monitor, classify and investigate security alerts generated by the SIEM, firewalls and other perimeter tools. • Perform triage and initial analysis of perimeter security incidents, carrying out structured escalation to a Specialist when necessary. • Produce operational reports, traffic maps and indicators of security incidents/blocks. • Create and keep up-to-date technical documentation of topologies, network flows and operational procedures (SOPs).

Job Requirements

  • Professional experience in Information Security, Networking, IT Infrastructure or related fields with a focus on security.
  • Hands-on experience in monitoring, log triage and routine operation of SIEM platforms.
  • Experience in operating and administering Next-Generation Firewalls (Check Point, Palo Alto, Fortinet or equivalents).
  • Solid practical knowledge of TCP/IP networking, routing, network segmentation (VLANs, DMZs) and communication protocols.
  • Knowledge of detection rules, event correlation and log header analysis.
  • Familiarity with Windows and Linux environments.
  • Proven technical analysis skills and diligence in documenting activities.
  • Strong analytical ability, attention to detail and investigative mindset.
  • Organization and discipline to follow Change Management processes.
  • Good communication skills for interacting with infrastructure, telecom teams and external partners.
  • Proactivity and interest in continuous technical development in SecOps.
  • Specific experience with Wazuh, Elastic Stack (ELK) or other open-source SIEM platforms.
  • Practical knowledge of detection rules mapped to the MITRE ATT&CK framework.
  • Basic understanding of Identity and Access Management (IAM) and Active Directory structure.
  • Knowledge of ISO/IEC 27001 and CIS Controls frameworks.
  • Basic scripting skills (Python, Bash or PowerShell) for automating log analysis.
  • Entry-level security or networking certifications (e.g., Security+, CCNA, NSE 4 Fortinet, CCSA Check Point).

Benefits

  • Life insurance;
  • Health and dental plans;
  • Portobello Corporate University platform;
  • Profit Sharing (PPR);
  • Discounts at local pharmacies;
  • Private pension plan;
  • Union membership;
  • Discount network – partnerships with various educational institutions;
  • Discounts on Portobello product purchases;
  • Vacation bonus;
  • 'Portobello Mom' allowance – for baby layette purchases;
  • Nursery assistance;
  • Support for dependents with disabilities (PCD);
  • Professional training and development programs;
  • Wellhub and many more!!!

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