EN

Oliver C. Díaz

IT & Network Specialist

Barcelona, Spain

Available for opportunities

// about

I fix networks, automate what I can, and build the rest from scratch. From managing hotel infrastructure to running my own homelab with VPNs, bots, and self-hosted services that just work.

// experience

2024 - Present

Helpdesk Agent

IRIUM

On-site and remote support for the Department of Education of Catalonia. L1 incident resolution and escalation.

2023 - 2024

IT Technician

Netland SL

Managed networks for 8+ hotels. Reduced internet costs by 20% through bandwidth optimization. Decreased incident resolution time by 25%.

2021 - 2022

IT Technician

Plasticband

Optimized Active Directory and VMware environments. Reduced service downtime by 10% through preventive maintenance.

// skills

Systems
Linux
Windows Server
VMware
Active Directory
Docker
Networking
TCP/IP
DNS
VPN
Firewalls
Routing
Development
Python
Bash
JavaScript
MySQL
Git

// currently learning

Expanding my skills in cloud and orchestration

☁️
AWS Cloud Infrastructure
⚙️
Kubernetes Container Orchestration

// education

2018 - 2021

IT Systems & Network Administration

IES Carles Vallbona

Higher Technician Degree - Cybersecurity Profile

2016 - 2018

Microcomputer Systems & Networks

INS Les Salines

Middle Grade Degree

// certifications

🏅
CCNA R&S: Introduction to Networks Cisco
🏅
CCNA R&S: Routing & Switching Essentials Cisco

// homelab

Personal Raspberry Pi server running 24/7

⚡ status
⚡ Status ONLINE
⏱ Uptime --d --h
🌡 Temp --°C
💾 Memory --%
🛡 Pi-hole --
🚫 Blocked --%
📋 Blocklist --

// projects

PiBot

Telegram bot for remote Raspberry Pi management. Controls WireGuard VPN, Pi-hole v6, monitors public IP, and auto-updates dynamic DNS.

Python Telegram API Automation
Running

WireGuard VPN

Personal VPN server for secure remote access. Client management via Telegram with QR code generation.

WireGuard Networking Security
-- peers

Cloudflare Tunnel

Secure tunnel exposing local services to the internet without opening ports. Powers this site's live stats API.

Cloudflare API Infrastructure
Active

Pi-hole

Network-wide ad blocker running Pi-hole v6. Blocks 770K+ domains across ads, trackers, malware, and crypto-mining for all devices on the network.

DNS Privacy Ad Block
Blocking

Status Page

Monitors all my services and shows if something goes down.

Node.js Monitoring DevOps
Live

// contact

LinkedIn GitHub Email