Systems/Networks Administrator (Ops Specialist), Pretoria

A company that provides integrated identity and payment solutions, specializing in secure document and card manufacturing, biometric identification systems, and digital identity verification, is seeking a highly skilled and experienced

Senior Systems/Network Administrator

to join their team. This role is for a technical expert who thrives in

command-line environments

and possesses a holistic understanding of all interconnected system components.

GUI-driven administrators need not apply.

Responsibilities

Linux (CLI Expert):

Provide expert-level administration for Debian (Ubuntu) and RedHat (Alma, Rocky) distributions. Provision and configure systems (servers, clusters, laptops) via the

CLI . Manually install and configure LOB applications using config files (YAML, JSON). Monitor, troubleshoot system performance, and analyze logs/processes.

Windows Server Ownership:

Manage and maintain Windows servers, including

Active Directory (AD/LDAP), DHCP, DNS, NPS, Certificate Services, IIS (with Dot Net/ASP/WebSockets) , and Hyper‑V. Provide user desktop support and manage file servers.

Network Topology Management:

Work with Core/Distribution/Access switching environments (Edgecore, MikroTik, UniFi, D-Link).

Security&Configuration:

Manage

VLANs

and implement modern tunneling (ZeroTier, WireGuard). Proficiently configure

iptables/nftables, firewalld , and network bonding.

Firewall Administration:

Hands‑on configuration and troubleshooting of FortiGate, MikroTik, and pfSense.

Performance&Monitoring:

Maintain network uptime, ensure critical service availability, and utilize monitoring applications (Zabbix, Nagios, etc.).

IPAM/DCIM experience is essential.

Storage Management:

Manage

SAN, NAS, DAS, LVM, and LUN

infrastructure (HPE SAN, Synology, FreeNAS). Perform HBA bonding, SCSI configuration, and storage performance optimization.

Hardware&HA:

Assemble, upgrade, and troubleshoot server hardware. Configure

RAID

and other High Availability (HA) methods.

Advantageous: Experience with Veeam, Quest NetVault, and LTO‑tape technology.

Virtualization&Clusters:

Administer Xen‑based hypervisor clusters (XCP/Xen) and Hyper‑V. Deploy, maintain, and troubleshoot virtualized environments, managing cluster performance and failover.

Advantageous: Experience with Hyper‑V clusters, VMWare vSphere, Docker, and Kubernetes.

Database Support:

Provide basic support (backups, restores, minor SQL queries) for Postgres, Oracle, and MariaDB. Collaborate with DBA teams.

Advantageous: Oracle Data Pump and TNS Listener troubleshooting.

Office&Asset Management:

Implement

ITIL‑based best practices (ITSM) . Manage assets (ITAM), including procurement, supplier negotiation, warranties, and SLAs.

Soft Skills&Documentation:

Write support/training documentation. Maintain strong written/verbal English communication.

Work independently, manage multiple priorities , and collaborate effectively with interdepartmental teams (e.g., Finance, Audit). Be eager to learn new technologies.

Advantageous: Familiarity with JIRA and Confluence.

Minimum Requirements

Education:

Bachelor's Degree in Computer Information Systems, Management Information Systems (MIS), or a similar field.

Required Certifications (or equivalent):

A+, N+

MTCNA

ICND1, UBWA

Linux+/LPIC1, Server+

MCSA: Windows Server 2016

Extensive technical management experience, preferably in a related industry.

Advanced knowledge of IT Infrastructure innovation and integration.

Methodologies:

Full understanding of the IT Software Development Lifecycle (SDLC).

Database Knowledge:

Familiarity with basic SQL, database design, and working with data architects.

Certifications:

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

Methodologies:

Experience with ITIL and AGILE Methodologies.

Benefits

Competitive salary based on experience (salary can potentially be more based on experience/skills)

IFyou meet the above requirements and want to make a career‑changing move, apply today by emailing your CV to

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