It Network Administrator (2Nd Line Support) (Sandton Onsite)
Posted on 2025-03-29
Employer | Datafin |
---|---|
Salary | 0 |
Category | It Computer |
Location | Gauteng / Johannesburg |
Job Summary
Johannesburg – Gauteng – South Africa
- Provide advanced 2nd Line IT support for software, hardware and network issues escalated from 1st Line Support.
- Diagnose and resolve complex IT problems, ensuring system reliability.
- Act as a key IT contact for internal teams, providing expert advice and solutions.
- Monitor network and IT infrastructure to proactively detect and resolve issues.
- Lead PC setup, software configurations and pre-deployment testing.
- Conduct network troubleshooting and optimisation to ensure secure, stable connectivity.
- Provide remote deployment support for software and hardware installations at customer sites.
- Manage and configure Active Directory, Group Policies, DNS, DHCP and VPNs.
- Optimise network performance and diagnose connectivity issues (e.g. slow speeds, packet loss).
- Maintain and troubleshoot LAN/WAN, VLANs, Firewalls, Routers and Switches.
- Manage firewalls (Cisco, Fortinet, MikroTik) and VPN configurations.
- Implement cybersecurity measures to protect network integrity and prevent threats.
- Utilise network monitoring tools (e.g. Zabbix, PRTG, SolarWinds) for real-time performance tracking.
- Assist in data protection, user access controls and IT security best practices.
- Develop and maintain detailed as-built documentation for network and system configurations.
- Document troubleshooting steps to improve the knowledge base and incident response efficiency.
- Continuously enhance IT operations by analysing past incidents and recommending improvements.
- Microsoft Certified: Azure Administrator Associate (MCSA, MCSE). Or (AWS Certified).
- Cisco Certified Network Associate (CCNA) or higher (CCNP). Or (Juniper Network Certifications).
- CompTIA Network+ (Networking Fundamentals).
- ITIL Foundation (IT Service Management & Incident Response).
- Zabbix Certified Specialist (For monitoring system administration). Or (Similar).
- 5 Years of experience in IT Support, Network Administration, or System Administration.
- Proven experience in troubleshooting escalated IT issues (2nd Line Support).
- Strong knowledge of network configurations, firewall management and security protocols.
- Hands-on experience with Active Directory (AD), Group Policies and Microsoft 365 Administration.
- Experience in troubleshooting Windows 10/11, Linux (Ubuntu/CentOS) and macOS systems.
- Experience in remote IT support tools (RDP, TeamViewer, AnyDesk, PowerShell).
- Proficient in configuring and managing routers, switches and firewalls.
- Hands-on experience in LAN/WAN troubleshooting, VLAN setup and VPN administration.
- Strong knowledge of Wi-Fi networks, subnetting and IP addressing.
- Experience in server administration (Windows Server, Linux).
- Basic scripting knowledge (PowerShell, Bash, or Python) for IT automation.
- Understanding of Cybersecurity principles (Access Control, MFA, Security Audits).
- Knowledge of SIEM tools (Splunk, ELK, Graylog) and endpoint security solutions.
- Proficient in firewall management and intrusion detection systems.
- Familiarity with patch management and OS updates (WSUS, SCCM, Intune).
- Experience with cloud environments (Azure, AWS, Google Cloud).
- Managing virtualisation (VMware, Hyper-V, Proxmox).
- Supporting remote users via VPNs, cloud applications and remote desktop tools.
- Problem-Solving & Troubleshooting Ability to diagnose and resolve complex IT issues quickly.
- Communication & Collaboration Can explain technical concepts to non-technical users.
- Initiative-Taking Attitude Proactively identifies, troubleshoots and resolves IT issues.
- Teamwork & Knowledge Sharing Works well in cross-functional teams and can mentor junior staff.
- Adaptability Keeps up with modern technologies, evolving IT needs and business changes.
- Documentation & Reporting Ability to write clear technical documentation and reports.
It Network Administrator (2Nd Line Support) (Sandton Onsite) position available in Gauteng, Johannesburg. This job position was posted by Datafin. The job has been posted as a premium ad on 2025-03-29 at 16:10:28 in the It Computer category
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