We are seeking a highly skilled Senior Systems/Network Administrator to join our technical team. This role involves deep, hands-on experience in both Linux and Windows environments, advanced networking, virtualization, storage, and cluster management.

Important: This is a CLI-driven role — GUI-only administrators will not be considered.

Key Responsibilities

Linux Systems Administration

• Advanced administration of Debian (Ubuntu) and RedHat (Alma, Rocky)
• CLI-based provisioning/configuration of servers and devices
• Manual setup of applications (YAML/JSON)
• Performance monitoring and log analysis

Windows Systems Administration

• Manage Windows Server roles: AD/LDAP, DHCP, DNS, NPS, IIS, Hyper-V
• User desktop and file server support
• General Windows Server maintenance

Networking

• Core/distribution/access switching (Edgecore, MikroTik, UniFi, D-Link)
• VLANs, ZeroTier, WireGuard, iptables/nftables
• FortiGate, MikroTik, pfSense configuration
• Network monitoring (Zabbix, Nagios, DataDog, New Relic)
• IPAM/DCIM management

Database Support

• Basic support for Postgres, Oracle, MariaDB (backups, restores, queries)
• Oracle Data Pump, TNS Listener troubleshooting (advantageous)

Hardware & Storage

• SAN, NAS, DAS, LVM, LUN management (HPE, Synology, FreeNAS)
• RAID and HA configuration best practices
• Veeam, Quest NetVault, and LTO tape (advantageous)

Virtualization & Clustering

• Administer XCP-ng/Xen and Hyper-V clusters
• Exposure to VMware vSphere, Docker, Kubernetes (advantageous)

General IT & Soft Skills

• ITIL-based best practices (ITSM), asset management (ITAM)
• Familiarity with JIRA, Confluence
• Strong communication and documentation skills
• Independent, analytical problem-solver
• Experience working with cross-functional teams (e.g., Finance, Audit)

Requirements

Qualifications

• Bachelor’s degree in computer information systems, MIS, or related field
• A+, N+, MTCNA, ICND1, Linux+/LPIC1, Server+, MCSA (or equivalent)

Preferred Certifications

• LPIC2, MCITP, MTCRE, CCNA, MCSE: Core Infrastructure, ITILv4, Security+

Experience

• Senior-level systems/network administration
• Strong infrastructure design and integration skills
• Understanding of IT SDLC, ITIL, AGILE methodologies
• SQL/database design and query experience

Apply for this role today, contact Sune Pienaar at Hire Resolve or on LinkedIn.
You can also visit the Hire Resolve website: hireresolve.us or email us your CV: [email protected]

We will contact you telephonically in 3 days should you be suitable for this vacancy.

If you are not suitable, we will put your CV on file and contact you regarding any future vacancies that arise