Santiago Teira, Network Admin

Having worked on a lot of different environments, I took the skills to be a realiable and open-minded network engineer. I like trying new things when deploying configuration if the customer asks for it, and I can fully adapt to the necessities and problems that can be found in almost any productive system.

Also I work very hard to document everything I do and I actively try to automate all jobs to be as efficient as possible using scripts and all kinds of software.

Abertis Autopistas España
Network Admin
TELECOMMUNICATIONS
September 2023 - Today (1 year and 8 months)
Barcelona, Spain
Working as a full-time Network Administrator in OT from Abertis Autopistas in more than a thousand of kilometers of freeways in Spain.
E-Ports Ample de banda i Internet
Core backbone network engineer
TELECOMMUNICATIONS
April 2017 - Today (8 years and 1 month)
Tortosa, Spain
- Configuration and manteinance of the whole backbone of the ISP.
- Configuration and manteinance of networks with Mikrotik, Huawei, Cisco and Nokia. BGP, OSPF, MPLS, VPLS, VSi, vlan, VX-LAN, Static Routing, Recursive Routing, Automatic Backups, OSPF Costs...
- Configuration and manteinance of GPON Networks (OLT & ONT) with various manufacturers (Televés, Huawei, FiberHome, Uplink, NuCom, Comtrend, Zyxel, etc).
- Firewall rules and traffic management with various platforms: Mikrotik (NAT, Mangle, Raw, Filter rules, Address list...), PfSense, Cisco, SonicWall, iptables.
- VoIP: deploy and manteinance of VoIP networks. IP Phones, virtual IP Phones, and PBX (Citra, Elastix, FreePBX, 3CX). Great experience in debugging VoIP issues.
- Use of different tools: NMAP, wireshark, MTR, Hydra, WinSCP, ConEmu, etc.
- Windows and Linux regular and advance use (Ubuntu, Kali, Debian, Debian server...).
- Debugging network problems (loops, degraded bandwidth, etc).
- Detecting network security problems (Bruteforcers, DDoS, ARP Poisoning, DNS Attacks...) and solve them.