Job Description
Responsibilities :
Key Responsibilities
Install, configure, and maintain Linux (RHEL / CentOS / Ubuntu) and Windows Server 2019+ environments
Manage Active Directory, DNS, DHCP, Group Policies, and File/Print services
Monitor system performance, apply updates and patches, and troubleshoot OS-level issues
Administer VMware ESXi / vCenter or Proxmox environments, including VM creation, storage, and networking
Ensure efficient resource utilization and implement backup and recovery strategies
Manage Veeam Backup & Replication for virtual machines, physical servers, and key applications
Maintain backup schedules, replication plans, and disaster recovery procedures
Regularly test backup integrity and restore functionality
Administer and maintain HPE Data Storage systems (HPE MSA)
Configure LUNs, access controls, and monitor storage performance and capacity
Install, configure, and maintain Mail servers (MDaemon / Microsoft Exchange)
Manage domains, user mailboxes, aliases, and email security policies (SPF, DKIM, DMARC)
Deploy and maintain web servers (Apache, Nginx) and ensure high availability
Perform basic DBA tasks (backup, restore, tuning, and user management) for PostgreSQL and MSSQL databases
Configure and maintain VLANs, routing, firewalls, and VPNs
Support and manage VoIP systems (Yeastar / Asterisk), including SIP trunks and call routing Security & Monitoring
Implement security best practices and manage user access controls
Use monitoring tools (Zabbix / Grafana) to ensure system uptime and performance
Maintain accurate documentation of configurations, processes, and incidents
Provide technical support and guidance to internal users
Requirements :
Requirements
Bachelor’s degree in Computer Science, Information Technology, or a related field (or equivalent experience)
3+ years of experience as a System Administrator or in a similar IT infrastructure role
Strong knowledge of Linux (Red Hat) and Windows Server administration
Hands-on experience with VMware vSphere / ESXi / Proxmox
Basic understanding of databases (PostgreSQL, MSSQL)
Experience managing web servers (Apache, Nginx)
Knowledge of TCP/IP, firewalls, VPNs, and network troubleshooting
Familiarity with VoIP technologies (SIP, PBX, call routing)
Preferred Skills
Scripting and automation using Bash or PowerShell
Experience with backup/recovery tools and disaster recovery planning
Exposure to cloud platforms (e.g., Azure)
Understanding of ITIL processes or similar frameworks
Key Attributes
Strong problem-solving and analytical mindset
Excellent communication and documentation skills
Ability to manage multiple projects simultaneously
Proactive and detail-oriented approach to reliability and security