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System Engineer / Site Reliability Engineer | 1

Warsaw, Masovian Voivodeship, pl💼 Full-time🗓 2026-05-26 → 2026-09-25

Core

Operate, maintain, and enhance VoIP and Radius systems across high-performance data centers, ensuring stability and scalability for approximately 700 systems.

Role type

Senior System Engineer / Site Reliability Engineer

Builds

Automated system management solutions for VoIP and Radius platforms

Domain

Telecommunications infrastructure and IT Operations

Deliverable

production ML models | product features | dashboards & analysis | infrastructure

Required skills

Linux administration, Puppet, Bash scripting, Python scripting, TCP/IP networking, ITIL processes, MySQL/MariaDB administration, virtualization (KVM, Proxmox, oVirt, OpenStack)

Preferred skills

VoIP technologies (Asterisk, Kamailio), FreeRADIUS

Technologies

Puppet, Debian, KVM, Proxmox, oVirt, OpenStack, Asterisk, Kamailio, FreeRADIUS, MySQL, MariaDB, Bash, Python, Perl

Responsibilities

Operate and maintain VoIP and Radius systems in data centers, develop automated system management, perform performance analysis and optimization, plan and execute feature rollouts, troubleshoot technical issues, coordinate with upstream providers via trouble tickets, participate in on-call rotation

Seniority

Senior, hands-on IC

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