Systems and Database Administrator (IT Infrastructure)

About the role

The Piraeus Port Authority is seeking a qualified Systems and Database Administrator to support its growing ICT environment. You will be responsible for ensuring the reliability, security, and performance of both infrastructure and database platforms that underpin critical port operations.

Key responsibilities

• Install, configure, and maintain ICT infrastructure including servers, networks, storage and operating systems (Windows & Linux).
• Monitor system performance and take proactive measures to ensure reliability and efficiency.
• Administer Microsoft on‑premises and cloud services such as Active Directory, Entra ID, Microsoft 365 and Intune.
• Design primary and disaster‑recovery data‑center infrastructure on virtualization platforms (VMware, KVM, AI, etc.).
• Design, implement and maintain Oracle and MS SQL databases, ensuring data integrity, security and availability.
• Monitor, troubleshoot and optimise database performance.
• Collaborate with developers to design and implement database structures.
• Ensure compatibility and integration between different systems.
• Implement system and database security controls and audit access.
• Maintain up‑to‑date security patches and technologies.
• Develop and execute backup and recovery plans for databases and systems.
• Test and update disaster‑recovery procedures regularly.
• Maintain detailed documentation of databases, systems, configurations, changes and upgrades.

Required profile

• Bachelor degree in Informatics, Computer Engineering, Electrical & Computer Engineering, Applied Informatics, or a related field.
• Strong analytical mindset with experience in managing enterprise‑level IT infrastructure and databases.

Required skills

• Windows Server administration
• Linux system administration
• VMware and KVM virtualization
• Oracle Database
• Microsoft SQL Server
• Active Directory and Microsoft Entra ID
• Microsoft 365 and Intune
• Backup, recovery and disaster‑recovery planning
• System monitoring and performance tuning