ð« Network Administrators [CCNA, ACSA, Fortigate]
Sci Tech Placements Johannesburg
Location: Predominantly Benoni-based, with travel to data centres and other sites as required
The Network Administrator is responsible for securing, maintaining, and optimizing the organizations computer systems and data communications network. This includes ensuring high availability, security, and efficiency of network infrastructure across all sites.
Essential
Essential
- Occasional after-hours callouts (weekends and public holidays)
- Scheduled standby and callout shifts
The Network Administrator is responsible for securing, maintaining, and optimizing the organizations computer systems and data communications network. This includes ensuring high availability, security, and efficiency of network infrastructure across all sites.
Key Performance Areas (KPAs)
Network Infrastructure Planning and Setup- Design and specify network requirements and solutions
- Implement, configure, and maintain LAN and WAN environments
- Assist System Administrators with network configurations
- Plan and report on network capacity
- Coordinate reciprocal network support with third-party vendors
- Contribute to risk mitigation, knowledge sharing, and incident response planning
- Monitor network traffic and update incident response plans
- Manage user accounts, permissions, and passwords via Active Directory
- Install and configure network equipment and server hardware/software
- Administer third-party network and firewall applications
- Maintain systems including virtual hosts, VPNs, routers, and hardware
- Optimize network performance based on business needs
- Monitor and respond to security alerts and incidents
- Test network performance (availability, utilization, throughput, latency)
- Update antivirus software and diagnose root causes of issues
- Resolve performance issues and escalate support queries
- Provide remote infrastructure support within SLA
- Monitor capacity thresholds and respond accordingly
- Identify and review software updates, patches, and firmware
- Recommend improvements to server operations
- Stay current with networking best practices and technologies
- Define and document network policies and procedures
- Communicate issues to IT teams and management
- Resolve escalated configuration issues
- Track system lifecycle and recommend replacements
- Document systems and plan new implementations
- Maintain positive relationships with internal stakeholders
- Support System Administrators with cross-functional tasks
- Liaise professionally with third-party providers
- Advise Maintenance team on UPS and system failures
- Retrieve camera footage for managerial review
- Occasional night-time driving and work
- Ability to carry loads of at least 20 kg
- Work at heights and in confined spaces
Essential
- A+ and N+ Certifications
- Linux LPIC-1 OR Equivalent NQF Level 7 certification (e.g., CCNA, ACSA, FortiGate)
- MCSE, MCIPT
- JNCIA
- FortiGate NSE 4
Essential
- Proven experience as a Network Administrator
- Experience designing and implementing routing/switching in large-scale, multi-vendor networks (Aruba, Cisco, Juniper)
- Direct experience in network security (e.g., Juniper, FortiGate)
- Hands-on experience with Aruba and Juniper routing/switching
- Wireless network experience (e.g., Unifi)
- Firewall and VPN implementation and troubleshooting
- Experience with Sentinel One and Gytpol
- Windows Server 20162019 experience
- Infrastructure and Linux Server experience
- VMware ESXi experience
- Backup and recovery methodologies
- Deep understanding of internet protocols and standards
- Network automation, telemetry, and SDN
- Network security standards and best practices
- Physical cabling knowledge
- Server infrastructure management
- Strong scripting and troubleshooting skills
- Excellent communication, problem-solving, and organizational abilities
Recru-itJohannesburg
Have to Have)
• Proven experience in a network administrator role
• Verifiable experience in the design and implementation of routing and switching in large-scale, multi-vendor networks (Aruba, Cisco, Juniper)
• Direct experience in Network Security...
CSG RecruitJohannesburg
of products.
• Proven expertise in network administration (TCP/IP, DNS, DHCP, VLANs, firewalls, wireless).
• Strong knowledge of server technologies (Windows Server, Linux/Unix, Active Directory, virtualisation platforms such as VMware or Hyper-V...
Network RecruitmentJohannesburg
position
• Understanding of SQL backups
• Experience with Microsoft Azure, network administrator (TCP/IP, DNS, DHCP, VLans, and firewalls) and server technologies (Windows Server, Linux / Unix, and Active Directory)
• Knowledge of Scripting languages (AWS...