Senior Network Administrator

Senior Network Administrator | Johannesburg South

Salary: R40 000 - R50 000 pm

Are you an experienced Network & Systems Administrator looking for your next senior opportunity?

We’re looking for a hands-on Senior Network Administrator to take ownership of network infrastructure, server administration, Microsoft 365 environments and IT security across a business-critical environment.

Key Responsibilities

• Manage and maintain network infrastructure , including routing, switching, VPNs and MikroTik environments.
• Administer Windows Server environments, including Windows Server 2022 .
• Manage Active Directory , user access, shares and file permissions.
• Administer Microsoft 365 , including Exchange and Azure Active Directory.
• Maintain and troubleshoot core network services including TCP/IP, DNS, DHCP and VLANs .
• Support routing protocols and overall network performance.
• Manage network and server security, backups and recovery processes.
• Assist with hardware, software and VoIP solutions.
• Contribute to business continuity, infrastructure resilience and disaster recovery.
• Diagnose and resolve complex technical issues while providing strong internal customer support.
• Ensure infrastructure is maintained to a high standard with a focus on reliability, security and performance.

Requirements

• 5+ years’ experience in IT Administration and/or Network Administration.
• Strong hands-on experience across networking and server administration .
• Solid knowledge of:
• TCP/IP
• DNS
• DHCP
• VLANs
• Routing
• VPN
• Switching
• MikroTik
• Active Directory
• Windows Server 2022
• Microsoft 365
• Exchange
• Azure Active Directory
• Relevant IT qualification or equivalent experience.
• Certifications such as A+, N+, Microsoft certifications/MCITP or Network Security+ would be advantageous.
• Strong troubleshooting and problem-solving capabilities.
• Excellent communication and internal customer service skills.
• Highly organised with strong attention to detail.
• Able to work under pressure, manage multiple priorities and take ownership of technical issues.
• Self-motivated, proactive and committed to continuous learning.

The ideal candidate

You'll be a hands-on infrastructure professional who enjoys solving problems, takes accountability for their work and can confidently manage both network and server environments.

You should be comfortable working independently while collaborating with internal teams, and have a strong focus on security, reliability, service delivery and continuous improvement .

Location: Johannesburg South / City Deep

Position: Senior Network Administrator

If you're an experienced Network Administrator with strong MikroTik, Windows Server, Active Directory and Microsoft 365 experience, we'd love to hear from you.

Apply now!

Stefan Pretorius

Recruiter

stpretorius@communicate.co.za

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