Cybersecurity student at ESTG - Instituto Politécnico do Porto with strong interest in information security, system administration, and digital forensics. 2nd place winner at Hackathon CyberTech 2025 as team leader. Proven experience in implementing secure enterprise infrastructures, firewall configuration, and threat detection. Demonstrated leadership skills as sports team captain and class delegate.

CTeSP in Cybersecurity, Networks and IT Systems
ESTG - Instituto Politécnico do Porto | 2023 – 2025 | Felgueiras, Portugal

12th Grade - Languages and Humanities
Escola Secundária D. Maria II | Completed 06/2024 | Braga, Portugal

2nd Place & "Hacker Destaque" Award - Hackathon CyberTech 2025
Incubou | Amarante, Portugal | April 2025

• Led team "404 NotFound" in developing an innovative anti-phishing solution
• Received individual "Hacker Destaque" award for outstanding technical contribution
• Presented solution to panel of cybersecurity specialists
• Certificate protected with blockchain timestamp via OpenTimestamps

github.com/RyanTech00/fsociety-infrastructure | DOI: 10.5281/zenodo.17840636

Complete enterprise network infrastructure implementation for the fictional company FSociety.pt. Architecture included Four-Legged Firewall with pfSense, virtualization with Proxmox VE, Active Directory with Samba AD DC, and Defense in Depth security strategy with multiple protection layers (Cloudflare WAF, CrowdSec IDS/IPS). Also implemented essential corporate services: email server (Mailcow), web server with reverse proxy (Nginx), backup server (Proxmox Backup Server), domain controller, workstations, Nextcloud for file sharing, and Zammad for ticket management.

github.com/RyanTech00/session-desktop-forensics

Forensic investigation of Session Desktop client revealing 5 critical privacy vulnerabilities. Analysis identified serious flaws including SQLCipher encryption key storage in plaintext and the possibility of recovering deleted messages through Full-Text Search (FTS) tables. Also documented 9 test scenarios with systematic methodology, resulting in a technical report protected with blockchain timestamp via OpenTimestamps.

Operating Systems: Linux (Ubuntu Server, Kali Linux, Debian), Windows Server 2019/2022, Windows 10/11

Networks & Security: pfSense, iptables, Cloudflare WAF, CrowdSec, Snort, OpenVPN, TCP/IP, DNS, DHCP, LDAP, RADIUS

Virtualization & Services: Proxmox VE, Proxmox Backup Server, Docker, Samba AD DC, FreeRADIUS, Nginx, Mailcow, Nextcloud

Forensics & Tools: SQLCipher, DB Browser for SQLite, Wireshark, Nmap, Netdata Cloud, OpenTimestamps, Git

Development: Python, Bash, SQL, JavaScript, React, Vite, Tailwind CSS, HTML, CSS

• Team leader in all academic cybersecurity projects (ASII, AFD)
• Team leader at Hackathon CyberTech 2025 (2nd place)
• Football team captain at Botafogo FR and AD Ninense
• Class delegate and group representative throughout academic career

• Portuguese: Native
• English: Intermediate (B1 Listening / B1 Spoken Interaction)

• View Europass CV Online
• Download CV (PDF)

Open to internships and entry-level opportunities in Cybersecurity