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Antonio M.AM

Antonio M.

Linux Systems Administrator & Infrastructure

€270/day
Málaga, ES
3-7 years

Average response time: 2 hours

Freelancer profile translated to English.
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About Antonio

I help small businesses have their own infrastructure that works without causing problems. Structured local network, own servers, interconnected branches, and secure remote access — all set up so you can forget about it.

What matters most to me is that when the internet goes down, when a server fails, when someone needs to connect from outside, your business keeps running. That's why I work with OPNsense as a perimeter firewall, NetBird to keep branches communicating even if the main link fails, Proxmox for virtualization, Docker for internal services, and Grafana to monitor everything and detect problems before they affect you.

It's not infrastructure for large corporations. It's serious infrastructure, well-built, for businesses that don't want to depend on the cloud or pay for things they don't need. Once set up, maintenance is minimal — because if it's done right, it doesn't fail.

I do it in production in my current company and provide services to two others. It's not theory.
  • Spanish

    Native or bilingual

  • English

    Conversational

Remote only
Primarily works remotely

Experience

  • Orden Hospitalaria de San Juan De Dios
    Systems Administrator & Fullstack Developer
    May 2025 - Today (1 year and 3 months)
    Málaga, Spain
    Systems and Network Technician at the Order of Hospitallers of Saint John of God, serving three centers in the province of Malaga.

    Management of Linux servers in production (Debian/Ubuntu), virtualization with Proxmox and VMware, and deployment of internal services with Docker. Local network with Aruba and Huawei switches, VLANs, Fortinet firewall, and MPLS links between branches.

    Secondary firewall with OPNsense integrated with NetBird as a backup link in case of MPLS failures. Infrastructure monitored with Grafana: network interfaces, traffic, machine status, and SSH access auditing.

    Development of internal tools with Python and TypeScript, self-hosted CI/CD pipeline with Gitea, GitHub Actions, and Komodo, and a full-stack network monitoring application via SNMP with Windows equipment inventory through GPO.
    Docker Desarrollo Front-End Desarrollo Back-End Administración de redes Monitorizacion

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Education

  • Grado en Física
    Universidad de Cordoba
    2025

Skill set

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