Job 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
