Freelancer profile translated to English.

Description

Networking, Perimeter Security, and IT Infrastructure Specialist, with experience in enterprise environments, firewall administration, virtualization, and level 2/3 support. I focus on designing, optimizing, and securing small and medium-scale networks, ensuring availability, performance, and traffic traceability.

I regularly work with Sophos XGS/SFOS, Mikrotik, Cisco firewalls, VLANs, advanced routing, NAT, VPNs, SD-WAN, and diagnostic tools such as packet capture, sniffers, log analysis, and layer 2 to layer 7 troubleshooting.

I have solid experience in virtualization (VirtualBox, Proxmox, VMware), Linux environment deployment, Docker containers, service automation, and server administration. I also implement and maintain monitoring systems (Zabbix, Nagios, PRTG), optimizing alerts, metrics, and infrastructure visibility.

My approach is precise diagnostics, clear documentation, and scalable solutions. I adapt quickly to existing environments, work with orderly methodologies, and prioritize effective technical communication.

Services I offer:

Network design and optimization (LAN/WAN/VLAN).

Firewall configuration and hardening.

VPN implementation (site-to-site and remote access).

Advanced connectivity and performance troubleshooting.

Virtualization and isolated environment deployment.

Infrastructure migration and topology reorganization.

Monitoring, alerts, and traffic analysis.

Technical documentation and operating procedures.

I seek to collaborate with companies that require real technical expertise, reliable diagnostics, and robust solutions in networks and infrastructure.

Industry field of expertise

Languages

Spanish
Native or bilingual
English
Fluent

Workplace preferences

Remote only

Primarily works remotely

Grupo Gamma
Infrastructure Engineer
January 2026 - Today (5 months)
Rosario, Santa Fe Province, Argentina
Administration of Linux environments (Debian, RedHat, Oracle Linux) and advanced automation with Bash and custom scripts. Management of VMware platforms, network design, and network architecture, ensuring availability and scalability. Responsible for Veeam backup, Sophos firewall, and level 3 support. Leadership in optimization, automation, and security strengthening projects (DRP, BCP, RPO/RTO).
Linux VMWARE Networking Sophos Mikrotik
Celestia
Infrastructure & Field Support
October 2024 - January 2026 (1 year and 3 months)
Roldán, SF, Argentina
Hybrid infrastructure management with a focus on Linux and task automation through Bash scripts. Proactive monitoring with Zabbix, level 2 support, and participation in datacenter migrations. Technical documentation and vendor/licensing administration.
Nagios Linux Mikrotik Cisco Microsoft Azure
Industrias SECCO S.A.
Head of Technical Support
September 2019 - October 2024 (5 years and 1 month)
Rosario, Santa Fe Province, Argentina
Coordination of a technical team (13 people + 2 supervisors), critical incident management, and ITIL v2 documentation. Design of the department from scratch, implementation of monitoring and alerts, advanced training in networks, Linux, and support. Leadership with a focus on coaching and developing the team's soft skills.
ITIL V4 ISO 27001 VMWARE Linux HPE