IT Infrastructure Engineer (Windows, Active Directory & VMware)

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 Portugal

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

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

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.