As a System Administrator at Azki, you will ensure the provisioning, configuration, operation, and maintenance of our Microsoft Windows and Linux infrastructures. With a major focus on Microsoft Exchange Server, you will drive the reliability, scalability, and security of our systems while contributing to continuous improvement and technical R&D efforts.

Key Responsibilities

• Ensure compliance with internal standards and operational requirements.
• Perform advanced administration, troubleshooting, and optimization of Microsoft Exchange Server (deployment, maintenance, performance tuning, and issue resolution).
• Manage core Microsoft infrastructure services: Active Directory, Group Policy, Certificate Services, DHCP, DNS, Remote Access, Failover Clustering, IIS, and WSUS.
• Develop and maintain PowerShell automation scripts for system maintenance tasks.
• Monitor system performance and availability; review logs and verify completion of scheduled jobs (e.g., backups).
• Administer Linux servers (Ubuntu, CentOS, Debian): configurations, patching, security hardening, and service management.
• Apply operating system updates and patches regularly; configure and deploy new services as needed.
• Design and support high-availability systems, clusters, and backup/disaster-recovery procedures; perform data recovery when necessary.
• Participate in a 24×7 on-call rotation for critical systems support (including evenings, weekends, and holidays).

Required Skills

• Minimum 3 years’ experience as a System Administrator or in a similar technical role.
• Expert-level hands-on experience with Microsoft Exchange Server (installation, upgrade, diagnostic, and troubleshooting).
• Proficiency with Windows Server ecosystem (AD, DNS, DHCP, GPO, etc.).
• Proven track record administering and troubleshooting Linux servers in production environments.
• Familiarity with virtualization technologies (VMware, Hyper-V).
• Solid understanding of storage systems (LUNs, iSCSI, NFS, etc.).
• Experience designing and supporting high-availability systems and clustering solutions.