Job Description
Were looking for a Senior Systems/Network Administrator with deep hands-on experience in both Linux and Windows environments, advanced networking, virtualization, storage, and clustered systems. This is a highly technical, command-line-driven role requiring excellent troubleshooting skills, strong autonomy, and a holistic understanding of infrastructure components.
Key Responsibilities
- Linux Systems Administration
- Expert management of Debian-based (Ubuntu) and RedHat-based (Alma, Rocky) systems.
- Server, cluster, and endpoint provisioning/configuration via CLI.
- Manual setup of LOB apps using config files (YAML, JSON).
- Troubleshooting system issues using logs and performance data.
- Windows Systems Administration
- Administering Windows servers (AD/LDAP, DHCP, DNS, NPS, IIS, Hyper-V, etc.).
- User support and Windows-based file server management.
- Ownership of server health, patching, and updates.
- Networking
- Manage enterprise-level networks (Core/Distribution/Access).
- VLANs, ZeroTier, WireGuard, iptables/nftables, firewalls (FortiGate, MikroTik, pfSense).
- IPAM/DCIM and network monitoring (Zabbix, Nagios, Data Dog, New Relic).
- Database Support
- Basic support for Postgres, Oracle, MariaDB.
- Backups/restores, minor SQL queries, TNS listener troubleshooting.
- Server & Storage
- Manage SAN, NAS, DAS, LVM, LUNs (HPE SAN, Synology, FreeNAS).
- Hardware assembly, RAID setup, LTO tape systems.
- Experience with Veeam, NetVault, and performance tuning.
- Virtualization & Clusters
- Administer XCP-ng/Xen, Hyper-V clusters; VMware and container tech (Docker/K8s) advantageous.
- Setup, maintain, and troubleshoot high-availability clusters.
- IT Operations & Administration
- ITIL/ITSM practices for incident/change/config management.
- IT asset management (procurement, warranties, vendor SLAs).
- Collaboration with Finance, Audit, and other departments.
- Documentation, reporting, and user training.
Key Requirements
Qualifications
- Degree in Computer Information Systems, IT Management, or related field.
- Relevant certifications (e.g. A+, N+, MTCNA, LPIC1, MCSA 2016).
Experience
- 5+ years in a senior systems/network role.
- Proven technical leadership and project ownership.
- Advanced knowledge of systems integration and lifecycle management.
- Solid understanding of IT security, fault diagnostics, and incident response.
- Strong written and verbal English communication.
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: *****@*****.co.za
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
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