Mauricio Ferreira
@maugf
I build secure, observable infrastructure across Windows, Linux, networks, and enterprise edge security.
BrazilWhat I'm looking for
I've delivered secure, resilient infrastructure at Grupo Guanabara, including a Windows domain migration for 150+ users and devices, ransomware data recovery, and Kaspersky EDR deployment across 200+ hosts. I also built Zabbix and Grafana monitoring with SNMP automation to support 24/7 operational decisions.
Across InvestSmart XP, MedSênior, and Mullertec, I've administered firewalls, VPNs, VLANs, servers, virtualization, and new-site infrastructure. I bring hands-on experience with Fortigate, pfSense, Windows Server, Linux, DRP, ITIL governance, and high-availability environments supporting critical operations.
Experience
Work history, roles, and key accomplishments
Infrastructure Analyst
Grupo Guanabara
Jan 2024 - Jan 2026 (2 years)
Refactored Windows Server environment, led domain migration for 150+ users/devices, and executed critical service restoration post-incident. Managed edge infrastructure, including DHCP/DNS mapping, NAT/PAT rules, and security profiles.
Education
Degrees, certifications, and relevant coursework
Universidade Cruzeiro do Sul
Technologist, Network and Systems Administration
2021 - 2023
Completed coursework in network and systems administration, covering infrastructure, security, and system management.
Estácio
Technologist, Information Technology Management
2019 - 2021
Studied information technology management, focusing on IT governance, project management, and business alignment.
Tech stack
Software and tools used professionally
Availability
Location
BrazilAuthorized to work in
Social media
Job categories
Skills
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