System Administrator

About the role

Onyxes Technologies Ltd. is an ICT company delivering multi‑project infrastructure solutions for enterprise and government clients. We are looking for a System Administrator to ensure the stability, performance and security of IT systems across our client environments.

Key responsibilities

• Administer and maintain Windows servers, virtualization platforms (Sangfor HCI, VMware, Hyper‑V) and storage arrays.
• Manage Veeam backup jobs, repositories and disaster‑recovery runbooks, and perform regular restore tests.
• Maintain Active Directory, Group Policy, DNS, DHCP and other Windows Server roles.
• Administer SQL Server instances, including backups, maintenance plans and access control.
• Deploy, image and manage endpoint fleets, including MDM enrollment, asset tracking and software packaging.
• Configure security settings, permissions and endpoint protection across managed environments.
• Develop PowerShell scripts (and optionally Python/Bash) to automate routine tasks and reporting.
• Monitor infrastructure health with SolarWinds and respond to alerts within defined SLAs.
• Document procedures, configurations and troubleshooting guides while enforcing change control.
• Collaborate with vendors and cross‑functional teams and mentor junior staff.

Required profile

• Bachelor’s degree in IT, Computer Engineering or related field (Master’s preferred).
• 4–7 years of hands‑on system administration in enterprise or government environments.
• Strong background in Windows Server, Active Directory, DNS, DHCP and Group Policy.
• Proven experience with server virtualization (Sangfor HCI, VMware or Hyper‑V).
• Hands‑on experience with Veeam backup & replication and disaster‑recovery planning.
• Experience with enterprise storage administration (SAN, LUN, RAID, multipath).
• Solid scripting skills – PowerShell required; Python or Bash a plus.
• Intermediate knowledge of data‑center networking (VLANs, switching, storage networking).

Required skills

• Sangfor HCI
• VMware
• Hyper‑V
• Windows Server
• Active Directory
• Group Policy
• DNS
• DHCP
• SQL Server
• Veeam Backup & Replication
• PowerShell
• Python
• Bash
• SolarWinds NMS
• SAN/LUN/RAID storage
• Data‑center networking (VLAN, switching)
• Endpoint protection/antivirus/EDR
• Exchange/Email administration
• High‑availability and clustering
• Disaster recovery planning