Network Administrator

SUMMARY:
Job Summary

• Secure and maintain the organisation’s computer systems’ network
• Maintain a reliable, secure and efficient data communications network

POSITION INFO:
Key Performance Areas

• Plan and Set Up Network Infrastructure
• Maintain High Availability Network Infrastructure
• Conduct Research on Latest Networking Practices
• Perform General Administrative Functions

• Plan and Set Up Network Infrastructure
• Specify network requirements and design solutions
• Implement, configure and maintain LAN
• Implement, configure and maintain WAN
• Assist System Administrators
• Plan and report on network capacity within the company
• Negotiate and provide reciprocal network support and access between the company and third party vendors

• Set up user accounts, permissions and passwords
• Install and configure network equipment to update/fix hardware/software issues
• Install and integrate new server hardware and applications
• Support and administer third-party applications (Network and Firewall applications)
• Maintain computer networks and systems including software, Virtual hosts, VPNs, routers and other physical hardware
• Tune network performance
• Check for and respond to network security and connectivity alerts and incidents
• Monitor network performance (availability, utilization, throughput and latency) and test for weaknesses
• Update virus protection software to keep data and communications protected
• Diagnose and identify root causes of network and security issues.
• Research and resolve network performance issues in a timely manner
• Provide accurate solutions to problems escalated from the 1st line support team
• Provide remote infrastructure support/troubleshooting within agreed SLAs
• Monitor and respond to new capacity threshold alerts

• Identify and review appropriate software updates, patches and firmware releases
• Research and make network recommendations on server system operations
• Research and review networking best practices and applications

• Define network policies and procedures
• Communicate networking issues to other IT Teams, Supervisors and management
• Resolve software and hardware configuration issues for users
• Track system’s end of life and specify replacements when needed.
• Document existing systems and formulate comprehensive plans for the implementation of new systems
• Establish and maintain a good working relationship with customers
• Undertake Extraneous-to-IT Activities

• Undertake cross-functional tasks for, and provide assistance to, System Administrators
• Liaise with third party providers in a professional manner.
• Undertake UPS operational/functionality checks per prescribed checklist(s)
• Check that OEM UPS suppliers’ maintenance regimes are completed per SLA
• Process “first point of contact” calls for UPS and systems issues and/or failures
• Retrieve camera footage for managers’/supervisors’ review
• Monitor and maintain camera hardware and cabling
• Occasional night-time driving and working

• Must be able to carry heavy loads (minimum 20 Kg)
• Working at heights and in confined spaces
• Exposed to sharp and jagged finishes to infrastructure and equipment
  
  

• Typically, during standard working hours (Monday to Friday 08:00 – 17:00)
• Occasional after hours call outs (including weekends and public holidays)
• Scheduled standby and call out shifts

• Predominantly Benoni based
• When required data centres and other sites
  
  

• Matric
• A+ Certificate
• N+ Certificate
• Linux LPIC-1
• OR
• An equivalent certification at NQF Level 7 (e.g. Cisco Certified Network Associate (CCNA), Aruba Certified Switching Associate (ACSA), Fortigate)

• MCSE
• MCIPT
• Fortigate NSE 4

• 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).
• Direct experience in Network Security (e.g. Sophos, Fortigate)
• Applied experience with Aruba routing and switches
• Practical experience with wireless networks
• Relevant experience with firewalls, Internet VPNs remote implementation, troubleshooting, and problem resolution

• Hands on experience in Windows server 2019-2016, hyper v, Designing and Implementing a Server
• Practicable experience with Infrastructure, Linux Server, Microsoft Systems
• Working experience with VMware

NB! This job is now closed. You can apply for other jobs by uploading your CV.