Senior IT Infrastructure Specialist (Systems Administration)

Polskie Sieci Elektroenergetyczne S.A.

Radom, Poland • 56m ago • On-site

Senior

On-site

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Quick Facts

  • Role: Senior IT Infrastructure Specialist (Systems Administration)

  • Focus: Data center IT device and infrastructure services administration

  • Work model: Hybrid

  • On-call: 24/7 duty participation

Description

Administer IT devices in the Data Processing Center and manage infrastructure IT services based on RHEL and Red Hat components (Red Hat IDM, Red Hat Satellite), including installation, configuration, optimization, upgrades, patch implementation, availability monitoring, incident response, and troubleshooting. Collaborate with external vendors and internal units to deliver development projects and resolve issues. Create standards and documentation, and plan/design and implement changes or new IT systems.

Responsibilities

  • Administer IT devices in the Data Processing Center

  • Install, configure, optimize, upgrade, and patch RHEL-based infrastructure and related services (Red Hat IDM, Red Hat Satellite)

  • Monitor availability, respond to incidents, and troubleshoot technical problems

  • Coordinate with external suppliers and internal teams on development initiatives and problem resolution

  • Develop standards, rules, procedures, and project documentation (including as-built)

  • Plan, design, and implement changes in existing IT systems

  • Plan, design, and implement new IT systems

  • Participate in procurement procedures as part of working/selection/acceptance committees or as a technical expert

  • Participate in 24/7 on-call support

Requirements

  • Bachelor’s degree in IT

  • 5–6 years of experience administering and servicing IT systems/devices in a data center

  • English knowledge at B1 level

  • Proven knowledge of Linux server infrastructure: RHEL, Red Hat IDM, Red Hat Satellite (install/configure/optimize, upgrade/patch, availability monitoring, diagnosis, troubleshooting)

  • Ability to analyze and resolve complex IT issues (troubleshooting)

  • Ability to collaborate with network, middleware, application, and security teams

  • Analytical mindset, independence, and accountability

  • Communication skills and ability to work in a team

  • Ability to learn quickly

  • Driver’s license category B

Benefits

  • Employment contract

  • Competitive salary with a clear bonus system

  • Training and professional development

  • Additional benefits: private medical care, life insurance, MultiSport card, and extra ZFŚS benefits

  • Extra day off for Energy Day (August 14)

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