IT Infrastructure Engineer (Windows, Active Directory & VMware)

About the role

We’re looking for an IT Systems Engineer to join our global Infrastructure & Platform team. In this role you will design, implement, maintain, and continuously improve infrastructure systems supporting PSI’s business operations globally. The position is full‑time and based in Czechia.

Key responsibilities

• Design, implement, maintain, and improve Windows and Linux server infrastructure.
• Manage and maintain virtualization, storage, and backup platforms.
• Administer Windows Active Directory and Public Key Infrastructure (PKI).
• Support enterprise applications and services hosted on Windows and Linux platforms, including email and business systems.
• Manage infrastructure management tools such as monitoring, patch management, configuration management, and access control services.
• Plan and execute OS patching and infrastructure upgrades in line with company policies.
• Lead small and medium‑sized infrastructure projects and contribute to larger initiatives.
• Perform qualification, validation, troubleshooting, and performance optimisation of infrastructure systems.
• Maintain accurate asset inventory, warranties, and related services.
• Coordinate with vendors, track deliveries, manage contracts, and oversee vendor activities.
• Develop and maintain technical documentation, procedures, and system standards.

Required profile

• University degree in IT, Computer Science, or a related field.
• Full professional proficiency in English (written and spoken).
• Strong hands‑on experience with Windows Server and Active Directory.
• Practical experience with virtualization technologies.
• Experience with Windows and/or Linux server administration.
• Experience with enterprise infrastructure services such as PKI and email/MTA technologies.
• Practical experience with backup and disaster recovery solutions.
• Experience designing, implementing, and managing infrastructure projects.
• Experience with infrastructure monitoring, patch management, and configuration management.
• Ability to troubleshoot complex infrastructure issues and maintain detailed technical documentation.

Required skills

• Windows Server
• Active Directory
• Virtualization (VMware, Proxmox, Hyper‑V)
• Linux server administration
• PKI
• Email/MTA technologies (Microsoft Exchange, Sendmail, Postfix)
• Backup and disaster recovery (Veeam)
• Infrastructure monitoring (Zabbix)
• Patch management
• Configuration management
• PowerShell scripting
• Microsoft Azure and hybrid infrastructure
• Azure Arc and Azure Update Manager
• ITIL and change management processes