Luiz Gabriel · Networking & Cloud Infrastructure
Informatics Engineering @ ISEP · Porto, Portugal
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I'm Luiz Gabriel, a CCNA-certified Informatics Engineering student at ISEP. I work with Linux, build Cisco network labs, and use automation and monitoring to understand and maintain infrastructure.
My next step is an internship in Networking, Cloud, Infrastructure or Systems Administration.
profile:
based_in: Porto, Portugal
education: Informatics Engineering @ ISEP
graduation: June 2027 (expected)
current_average: 15/20
hands_on:
- Daily-use Linux homelab
- Three-site physical Cisco network lab
- Wireless deployment for ISEP Career Summit
direction: Networking + Linux -> Cloud infrastructure🟢 Open a project below to inspect the implementation. Repository links lead to the full documentation.
🖥️ [01] linux-homelab/ — daily-use Linux infrastructure
2025 — Present · Open repository ↗
linux-homelab/
├── platform Linux · Docker Compose · persistent storage
├── remote-access WireGuard · OpenVPN
├── dns AdGuard Home
├── reverse-proxy Nginx Proxy Manager
├── security CrowdSec
├── monitoring Prometheus · Grafana
└── operations Bash · cron · backups · restore testingLogical service inventory, not the repository's directory structure.
I administer a Linux server running containerized services used daily, manage deployments and storage, and maintain the services above. Bash scripts automate scheduled backups, retention, restore testing and cleanup.
Operational focus: keeping services observable and maintenance repeatable.
🌐 [02] ccna-multisite-network/ — three sites, physical Cisco hardware
2026 · Open repository ↗
| Layer | Implementation |
|---|---|
| Routing & addressing | IPv4/IPv6 · VLANs · inter-VLAN routing · OSPF over GRE/IPsec · NAT |
| Redundancy | HSRP · EtherChannel · Rapid STP |
| Services | DHCPv4/v6 · WLC-managed wireless / FlexConnect · VoIP |
| Protection | ACLs · port security · DHCP snooping · Dynamic ARP Inspection · BPDU Guard |
| Operations | Ansible configuration backups · LibreNMS · SNMP · Syslog · NTP |
Operational focus: connecting three sites while putting redundancy, security controls and monitoring into practice.
📡 [03] isep-career-summit-wireless/ — an event deployment & a troubleshooting story
2026 · Open repository ↗
Scope: a three-day faculty event, with a wireless network designed to support up to 100 users.
Equipment: Catalyst 2960 PoE · 3 Cisco Aironet lightweight APs · Cisco Virtual WLC · external gateway/DHCP.
Symptom APs failing to join the WLC
Investigate AP/WLC logs + Cisco show commands
Trace DHCP -> CAPWAP -> DTLS
Root cause Expired AP MIC certificates
Resolution WLC certificate-expiry workaround; AP registration restored
Also configured dedicated management IP addressing, unused-port shutdown, a blackhole VLAN, PortFast and BPDU Guard.
Operational focus: troubleshooting from evidence and restoring wireless registration.
[networking]
platform = Cisco IOS
protocols = TCP/IP, IPv4/IPv6, VLANs, OSPF, NAT, ACLs, DHCP, DNS, VPN
[systems]
platform = Linux, Docker, Docker Compose
services = Nginx / reverse proxy
[automation_and_observability]
tools = Bash/Shell, Ansible, Git
telemetry = Prometheus, Grafana, LibreNMS, SNMP, Syslog
[programming]
languages = Java, Python, C, RISC-V Assembly, SQL| State | Credential / training | Details |
|---|---|---|
| 🟢 Certified | Cisco CCNA | Aug 2026 — Aug 2029 · Verify on Credly ↗ |
| 🟡 In progress | Fortinet NSE 4: FortiOS Administrator | Continuing my networking and security learning |
| 🔵 Course only | AWS Cloud Practitioner | Not certified |
| 🔵 Course only | AWS AI Practitioner | Not certified |
🎓 Expand education & language information
Bachelor's Degree in Informatics Engineering
Instituto Superior de Engenharia do Porto · February 2024 — June 2027 (expected)
Current average: 15/20
- Portuguese: native.
- English: B2, professional working proficiency · EF SET certificate ↗.
- Spanish: B1, limited working proficiency.
Looking for an intern who enjoys Linux, networking and hands-on troubleshooting? Let's talk about your infrastructure team.
