Johannesburg: Systems / Networks Administrator (Ops Specialist) posted by Hire Resolve
Posted on 2025-08-29 00:00:00
Employer | Hire Resolve |
---|---|
Category | Other IT/Computer |
Location | Gauteng / Johannesburg |
Job Summary
their team in Centurion, EC. The ideal candidate will have extensive hands-on experience with both Linux and
Windows environments, advanced networking, virtualization, storage solutions, and system clusters. This role demands technical expertise, a strong troubleshooting mindset, and the ability to work independently with minimal supervision. Attention to detail is essential, along with a holistic understanding of all interconnected components.
Responsibilities:
Linux Systems Administration
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Expert-level administration of Debian-based distributions (Ubuntu) and RedHat derivatives (Alma, Rocky).
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Provisioning and configuring servers, clusters, laptops, and other devices via the CLI.
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Installation and configuration of LOB (Line-of-Business) applications manuallyconfig files (YAML, JSON).
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Monitoring and troubleshooting system performance, processes, and logs to ensure smooth operations.
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Participating in interviews and tests focused on troubleshooting system issues based on log output and process analysis.
Windows Systems Administration
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Managing and supporting Windows servers in a range of functions, including Active Directory (AD/LDAP), DHCP, DNS, NPS, Certificate Services, IIS, and Hyper-V.
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Knowledge of IIS modules (Dot Net, ASP, WebSockets).
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Providing user desktop support and managing Windows-based file servers.
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Taking ownership of Windows Server maintenance and administration tasks.
Networking
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Working in environments with Core/Distribution/Access-switching topologies, high-throughput aggregation switches, and edge/access switches (Edgecore, MikroTik, UniFi, D-Link).
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Managing VLANs, implementing modern tunneling technologies such as ZeroTier and WireGuard, and being well-versed in iptables/ip6tables, firewalld, and network bonding techniques.
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Hands-on configuration and troubleshooting of FortiGate, MikroTik, pfSense, and other similar systems.
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Maintaining network performance and ensuring uptime for critical services.
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Knowledge of monitoring applications such as Zabbix, Nagios, DataDog, and New Relic.
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IPAM/DCIM experience essential.
Database Support
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Providing basic support for Postgres, Oracle, and MariaDB environments (backups, restores, and minor SQL queries).
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OracleDB knowledge advantageous, including the use of Oracle Data Pump and TNS Listener troubleshooting.
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Collaborating with DBA teams to ensure database availability and performance.
Server Hardware & Storage Administration
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Manage SAN, NAS, DAS, LVM, and LUN infrastructures. From setting up and configuring HPE SAN systems to managing Synology, Seagate NAS, and FreeNAS devices.
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Perform tasks such as HBA bonding, SCSI configuration, and storage performance optimization.
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Server hardware assembly/upgrades and troubleshooting.
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RAID and other HA methods, including setup and best practice configurations.
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Veeam Backup and Quest NetVault experience advantageous.
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Familiarity with LTO-tape technology and how it works and is used will be advantageous.
Virtualization & Cluster Management
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Administering Xen-based hypervisor clusters (XCP/Xen Hypervisors) and Hyper-V environments.
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Deploying, maintaining, and troubleshooting virtualized environments.
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Managing cluster performance, failover, and storage integration.
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Past hands-on experience with Hyper-V clusters and VMWare vSphere advantageous.
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Knowledge of Docker, Kubernetes, and containerization technologies is advantageous.
Office Administration & Soft Skills
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Implementing ITIL-based best practices (ITSM).
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Managing assets (ITAM), including hardware procurement, supplier negotiation, warranties, and SLAs.
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Familiarity with JIRA and Confluence is advantageous.
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Experience collaborating with interdepartmental teams, such as Finance and Audit.
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Strong English communication skills, both written and verbal, with professional email etiquette.
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Writing of support and training documentation.
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Strong troubleshooting and analytical abilities.
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Ability to work independently and unsupervised, manage multiple priorities in a fast-paced environment.
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Eagerness to learn new technologies and systems, be curious!
Requirements:
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A bachelor’s degree in computer information systems, management information systems, or similar.
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Certifications: A+ & N+, MTCNA, ICND1, UBWA, Linux+/LPIC1, Server+, MCSA: Windows Server 2016or the nearest equivalent of the aforementioned.
Desired Certifications:
LPIC2, MCITP, MTCRE, CCNA, MCSE: Core Infrastructure, ITILv4, Security+.
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Extensive experience in technical management, preferably in a related industry.
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Advanced knowledge of IT Infrastructure and Information Systems innovation and integration.
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Ability to manage IT support teams.
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Familiarity with database queries.
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Knowledge of database design and theories.
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Ability to work with data architects and other IT specialists to set up, maintain, and monitor data networks.
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Knowledge of database structure languages, such as SQL or SQL/PSM.
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Experience with server installation and maintenance.
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Familiarity with database management best practices.
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Has a full understanding of the IT SDLC.
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Experience in ITIL and AGILE Methodologies advantageous.
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Ability to diagnose faults, incidents, and problems, and implement required changes.
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Ensuring optimal hardware and software functionality, as well as network security.
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Exceptional communication and interpersonal skills.
If you are looking for career advancement and new environments, kindly forward your CV to Gaby Turner *****@*****.co.za or you may forward your CV to *****@*****.co.za
Click Go Apply to apply online!
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