// curriculum vitae

Julio A. Romero Ramírez

ASIR Student · Extremadura, Spain

📧 contacto@julior23.es 🐙 github.com/Juli0r23 💼 linkedin.com/in/julior23 📍 Extremadura, ES
// education
Higher Technician in Network Systems Administration (ASIR) 2025 – present
IES Suárez de Figueroa · Network Systems Administration
2nd year · Modules: Local Networks, SRI, Security, OS Administration, Python
Technician in Microcomputer Systems and Networks (SMR) 2023 – 2025
IES Suárez de Figueroa · Microcomputer Systems and Networks
Training in hardware maintenance, local networks and technical support.
// experience
Repair Technician · Bolopapa Sep 2024 – Aug 2026
Device repair · Extremadura, Spain
Hardware Technical support Diagnostics
Repair and maintenance of mobile phones, tablets and computers. SMR internship (Sep 2024) followed by contract until Aug 2025. ASIR 1st year internship followed by contract until Aug 2026.
// projects
Enterprise Network in Cisco Packet Tracer
Networking Cisco IOS
Design and implementation of a full company network: VLANs, IP addressing, subnets, static and dynamic routing, ACLs and inter-site connectivity.
Home Server with Raspberry Pi
Homelab Linux Docker
Home server based on Raspberry Pi running Docker services: monitoring, storage, local DNS and other self-hosted services.
Debian 13 Server with Static IP
SRI Linux
From-scratch installation and configuration of a Debian 13 server: static IP, gateway, custom DNS and connectivity verification. Documented on the blog.
SSH Hardening on Linux Server
Security Linux
sshd_config hardening for remote access: port change, root login disabled, ed25519 key authentication and Fail2ban installation.
// skills
Networking
Cisco IOS TCP/IP VLANs OSPF DNS/DHCP Packet Tracer
Systems
Linux (Debian) Windows Server Bash SSH Apache/Nginx Raspberry Pi
DevOps / Infra
Docker Self-hosting Monitoring Homelab
Development
Python PHP Git HTML/CSS
Languages
Spanish (native) English (B1)
// additional training
Cisco NetAcad — Introduction to Networks 2025
Network fundamentals: OSI model, TCP/IP, IPv4/IPv6 addressing and basic Cisco device configuration.
// goals
Cybersecurity · Pentesting In progress
After ASIR, specialised training in cybersecurity focused on pentesting. Target certifications: eJPT (eLearnSecurity) and CompTIA PenTest+, with OSCP as a long-term goal.
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