Position: VoIP Engineer
Category: Sysadmin
English level: upper
Years of experience: 5


A passionate Linux admin and VoIP engineer for personal and professional reasons who also interested in software development and DevOps areas. Having 3+ years of voice/networking support experience around the telecommunications field.

My interests and skills:

- VoIP Telephony services (SIP):
Asterisk, FreePBX IP-PBX platforms
Experience with hardware like GSM, FXO/FXS gateways, PRI modules
Dialplan programming (AEL, LUA)
Asterisk AMI, AGI, ARI interfaces
A little experience with Kamailio
SIP trunking and carriers interconnection

- Linux and DevOps:
A power user and administrator of Debian/Ubuntu systems for 5 years
VPS and Cloud Environments such as Hetzner, Digital Ocean, Vultr, Rackspace, AWS/GCP (as Cloud Practitioner level)
Experience with Terraform, Ansible, Docker
Proficient with Proxmox (KVM virtualization)

- Software Development
Junior level of PHP, JS, Bash and Python
FrontEnd development (jQuery and React.js)
API development - Node.js (express, koa), Python (flask)

- Networking
Feeling comfortable about the most common networking protocols around me
Fell in love with SIP & (S)RTP, DHCP, HTTP(s), DNS, ICMP, WebRTC, STUN, SSH, VRRP and few others
Proficient with Cloudflare (DNS, firewalling, SSL/TLS)
Experience with Mikrotik hardware (on my path to MTCNA now)