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System Engineer / Site Reliability Engineer | 1

Company: Inetum Polska

Location: Warsaw, London

Posted: May 28, 2026

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Position Details

Job Description

Join our team as a key contributor responsible for the end-to-end operation of approximately 700 systems across TEST, AC1, PreLIVE, and LIVE environments. You will work in a highly automated, performance-driven infrastructure, ensuring stability, scalability, and continuous improvement of our VoIP and Radius platforms.

As part of our team, you will:

  • Operate, maintain, and enhance VoIP and Radius systems within high-performance data centers
  • Develop and improve automated system management using Puppet and Debian-based server clusters
  • Drive projects within the VoIP and Radius environment across their full lifecycle — from design and implementation to deployment
  • Perform performance analysis and optimization to ensure system efficiency and reliability
  • Plan and execute rollouts of new features and system updates
  • Carry out regular maintenance activities (system expansions, updates, upgrades)
  • Analyze, ...