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Alexander LabradorAL

Alexander Labrador

Linux and Windows Server Administrator

€310/day
Madrid, ES
8-15 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Alexander

Server administrator with experience in infrastructure monitoring and automation. Specialized in ensuring high availability, performance, and security through tools like Ansible, Grafana, Prometheus, ELK, and custom scripts.
  • Spanish

    Native or bilingual

Can work on-site
Madrid (up to 50km)

Experience

  • Alter SL
    Systems Administrator
    TELECOMMUNICATIONS
    July 2025 - May 2026 (10 months)
    Madrid, Spain
    Specializing in automation, infrastructure, and administration of Linux and Windows environments, with experience in Docker, Kubernetes, Ansible, and CI/CD. Focused on optimizing processes, ensuring high availability, and improving the performance of enterprise platforms through scalable, secure, and efficient solutions.
    Administración de sistemas Linux Ansible Docker Jenkins Kubernetes
  • Consultame LYL SPA,
    Linux and Windows Server Administrator
    January 2022 - January 2025 (3 years)
    Chile
    Server administration using automated systems
    • Installation and configuration of ELK Stack (Elasticsearch, Logstash, and Kibana) for real-time log monitoring system of the entire infrastructure, managing metrics, system anomalies, service monitoring, etc.
    • Installation and configuration of Grafana for monitoring virtual and physical server resources, customizing dashboards, creating scripts for sending alerts via email, and including SNMP protocols.
    • Implementation of monitoring system deployments with Docker. Private Cloud Installation and Configuration with oVirt
    • Creation of Data Centers for virtual machines (Windows 10, Windows 11, Windows Server, Ubuntu, Debian, CentOS, AlmaLinux, etc).
    • Creation of custom templates depending on requirements.
    • VM Screenshot Planning.
    • Creation of oVirt nodes for migrations and high availability.
    • Nested virtualization if required by a virtual machine. IP telephony system implementation in the cloud (vitalpbx) with trunks in different countries (Chile, Peru, Spain, and Mexico).
    Grafana Docker Elastic Stack (ELK) Cloud Administration
  • IMAGINACOLOMBIA,
    Linux Server Support
    January 2019 - January 2021 (2 years)
    Colombia
    Installation and configuration of Linux Hosting, VPS, Dedicated Servers
    • WHMCS, cPanel, and CyberPanel.
    • Configurations of Firewall, DNS, Email, FTP, Websites, etc. Monitoring and error correction on different platforms. Platform migrations between cPanel <-> CyberPanel or manual.
    • Optimizations of services like MySQL and PostgreSQL.
    MySQL Administración de sistemas Linux cPanel

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Education

  • High School Diploma in Sciences
    U.E Colegio Monte Carmelo
    2004
    Bachiller en Ciencias
  • Computer Engineering
    UGMA
    2010
    Ingeniería Informática

Skill set

Categories