Where

Systems / Networks Administrator (Ops Specialist)

Hire Resolve
Pretoria Full-day Full-time

Description:

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)

IF you meet the above requirements and want to make a career-changing move, apply today by emailing your CV to itcareers@hireresolve.za.com


Requirements:

  • 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.

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

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

  • Advantageous: Oracle Data Pump and TNS Listener troubleshooting.

  • Advantageous: Familiarity with JIRA and Confluence.

  • 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.

  • A+, N+

  • MTCNA

  • ICND1, UBWA

  • Linux+/LPIC1, Server+

  • MCSA: Windows Server 2016

  • Competitive salary based on experience (salary can potentially be more based on experience/skills)
17 Nov 2025;   from: careers24.com

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