Описание

Support and development of IP PBX based on Asterisk.
Configuration of dialplans, SIP trunks, SIP agents, and call routing.
Integration of backend applications with Asterisk via ARI/AMI.
Diagnostics and resolution of problems with SIP traffic and call quality.
Ensuring the security and fault tolerance of telephony: fail2ban, firewall, protection against SIP/brute-force attacks.
Work with CDR, call recordings, their storage, and rotation.
Infrastructure support: Linux, MariaDB/MySQL, Redis, Nginx, cron, Samba.
Configuration and support of monitoring (Grafana Alloy, Heplify).
Maintaining technical documentation.

Over 2 years of practical experience with Asterisk.
Good understanding of the SIP protocol: registration, NAT traversal, codecs, diagnostics of typical problems.
Practical experience with ARI and/or AMI.
Confident Linux administration.
Experience with MariaDB/MySQL and basic SQL.
Understanding of network security and the principles of firewall/fail2ban.
Experience with Redis.
Experience configuring Nginx as a reverse proxy.
Understanding of network security principles (fail2ban, firewall, DDoS/brute-force protection).
Experience with monitoring systems (Grafana, Prometheus, or similar).
Independence and the ability to diagnose technical problems.

VoIP / Asterisk Engineer