Photo of Antonio Fernández

Hi! 👋 I'm Antonio

Higher Technician in Network Computer Systems Administration (ASIR) and Technician in Microcomputer Systems and Networks.

I'm about to start the Specialization Course in Cybersecurity in Information Technology Environments.

Passionate about technology, systems administration and continuous learning to tackle new challenges. Always learning.

🛠️ Technical Skills

Operating Systems

Windows Windows Server Linux Ubuntu Ubuntu Server Debian

Networking

LAN/WAN TCP/IP DNS DHCP VPN

Security

Firewalls Permissions Antivirus Cybersecurity

Virtualization

VirtualBox VMware

Databases

MySQL SQL Server phpMyAdmin

Scripting

Bash Batch PowerShell

📚 Currently Learning

Specialization Degree in Cybersecurity in Information Technology Environments

Languages

Spanish🇪🇸 Native
English🇬🇧 B1 (Cambridge Certificate)

Academic Background

Vocational Training in Microcomputer Systems and Networks

IES Sierra de Gádor (Berja)

2022 - 2024

Higher Vocational Training in Network Computer Systems Administration *First year*

IES Al-Andalus (Almería)

2024 - 2025

Higher Vocational Training in Network Computer Systems Administration *Second year*

IES Aguadulce (Roquetas de Mar)

2025 - 2026

Specialization Degree in Cybersecurity in Information Technology Environments

IES Aguadulce (Roquetas de Mar)

2026 - PRESENT

Work Experience / Internships

Diputación de Almería

March 2026 - June 2026 · 3 months

View internship details

Artificial Intelligence and Language Models (LLMs / RAG)

  • RAG design: Implementation of custom RAG systems using Python and JavaScript.
  • Local deployment: Installation of LLMs (DeepSeek, Qwen3.5-2B) on Ollama and a vLLM Server on Debian 13.
  • Integration: Connection with Gemini CLI, Codex CLI, OpenRouter AI, and deployment of local embeddings.
  • Specialized RAG: Creation of a local legal RAG based on legal documents.
  • UI/UX and documentation: Visual improvements to the RAG web app with Opencode, finishing the chatbot, and writing the installation manual.

Databases and Text-to-SQL

  • RAG-SQL integration: Implementation of PostgreSQL in a RAG so the model can respond with SQL queries.
  • Cloud management: Use of Firebase to manage users and chatbot information.
  • Processing: Automated conversion of .doc files to .pdf for correct data ingestion.

Document Management (Alfresco)

  • Deployment: Installation of Tomcat and Alfresco through automation scripts for file uploads.
  • RAG integration: Configuration of Alfresco and PostgreSQL for AI-powered document queries.

Data Engineering and Telemetry

  • Data extraction: Development of a Python script (confluent_kafka) to extract telemetry from Datahub.
  • Dashboards: Creation of an interactive panel for water meters with monitoring and CSV export.
  • Monitoring: Use of njmon on AIX to extract Oracle performance and visualize it in Grafana.

Systems Administration and Operations

  • Linux systems: Installation of NixOS with encrypted ZFS and deployment of Linux Mint on multiple laptops.
  • Containers and web: Editing a Dockerfile and installing PHP's GD library on a CMS to process JPG images.
  • Operations: Documentation in Redmine, domain pricing control, and conference management with municipalities.

Diputación de Almería

May 2025 - June 2025 · 3 weeks

View internship details

Databases and Administrative Management

  • SQL administration: Use of Oracle SQL Developer and DBeaver for managing and maintaining municipal databases.
  • Advanced queries: Work with Oracle regular expressions (Regex) for data processing.
  • Excel control: Creation of spreadsheets to manage CIPE licenses and to control municipal public works contracting expenses.

Quantasoft

March 2024 - June 2024 · 3 months

On-site Erasmus internship in the Czech Republic (Prague), with an Europass certificate.

Certificates and Courses

Cybersecurity certificate

Ethical Hacker

2026
CCNA certificate

CCNA: Introduction to Networks

2025
Linux certificate

Linux Fundamentals

2025
Cybersecurity certificate

Introduction to Cybersecurity

2025
Europass certificate

Europass Certificate

2024