IT Infrastructure Engineer (Windows, Active Directory & VMware)

PSI is a leading Contract Research Organization (CRO) with 30 years of experience in the pharmaceutical industry. Originated in Switzerland, PSI is a privately owned, full-service CRO with a global reach, supporting clinical trials across multiple countries and continents. Our reputation for being highly selective about the projects we undertake highlights our commitment to delivering high-quality, timely services across a broad spectrum of therapeutic indications.
At PSI, we foster an environment where a diverse range of colleagues feel welcomed and valued. Our inclusive culture is a cornerstone of our success, enabling us to attract and retain top talent globally.
We are not just about conducting clinical trials; we are about building a community where every team member has the opportunity to thrive and contribute to groundbreaking advancements in the pharmaceutical industry.
Job Description
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.
Full-time employment 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 and supporting systems, including monitoring, patch management, configuration management, and access control services
Plan and execute OS patching and infrastructure upgrades in accordance with company policies
Lead small and medium-sized infrastructure projects and participate in larger infrastructure initiatives
Perform qualification, validation, troubleshooting, and performance optimization of infrastructure systems
Maintain accurate infrastructure asset inventory, warranties, and related services
Coordinate with infrastructure vendors, including tracking deliveries, contract execution, and vendor activities
Develop and maintain technical documentation, procedures, and system standards
Collaborate with Network & Connectivity and Cloud & Modern Workplace teams on cross-domain initiatives
Qualifications
Must-have qualifications
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
Good to have
Experience with VMware, Proxmox, or Hyper-V
Experience with Microsoft Azure and hybrid infrastructure
Experience with Azure Arc and Azure Update Manager
Experience with Zabbix or other infrastructure monitoring platforms
Experience with PowerShell or other scripting languages and infrastructure automation
Experience with Microsoft Exchange, Sendmail, or Postfix
Experience with Veeam or similar backup technologies
Familiarity with ITIL, change management, qualification, and validation processes
Relevant Microsoft, virtualization, Linux, or other infrastructure certifications
Additional Information
If you feel it is time to make your skills and knowledge visible within a growing company with true focus on its people, then PSI is the right choice for you.

Work arrangement
Yes