Santiago Teira, Network Admin

Check out Santiago's expertise

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 5 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 (7 years and 9 months)

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.