Senior Network Administrator

Recruiter:

Communicate Recruitment

Job Ref:

CTI006642/LB

Date posted:

Tuesday, May 26, 2026

Location:

Johannesburg, South Africa

Salary:

420 000 Annually

SUMMARY:
My client is looking for a seniorâlevel Network Administrator who thrives on solving complex infrastructure challenges.
This is a handsâon role for someone who enjoys ownership, stability, and building resilient systems.
Ideal for experienced IT professionals who want longâterm impact rather than shortâterm firefighting.

POSITION INFO:

Job Description:

My client operates a large, established IT environment supporting hundreds of internal users across multiple business units. The Senior Network Administrator will play a critical role in keeping core systems secure, reliable, and scalable.

This role sits at the heart of the IT function and offers real ownership, from designing and maintaining networks to ensuring business continuity across servers, cloud services, and security layers. You’ll work closely with internal stakeholders, not external clients, focusing on stability, optimization, and longâterm improvements.

This is not a helpdesk role. It’s suited to someone who enjoys deep technical work, autonomy, and being the goâto person for critical IT systems.

Key responsibilities include:

Managing and maintaining enterprise networks (routing, switching, VPNs)
Administering Windows Server environments, including Active Directory and permissions
Supporting Microsoft 365 services (Exchange, Azure Active Directory)
Ensuring network security, backups, disaster recovery, and uptime
Troubleshooting complex infrastructure issues across servers and networks
Contributing to continuous improvement, documentation, and best practices

Skills & Experience:

Minimum 5+ years’ experience in IT administration / network administration
Strong handsâon knowledge of TCP/IP, DNS, DHCP, VLANs and routing protocols
Solid experience with Windows Server (Server 2022 or similar)
Microsoft 365 administration (Exchange, Azure AD)
Network security, backups, and recovery planning
Experience with hardware, software, and VOIP environments
Strong problemâsolving skills with the ability to work under pressure
Comfortable taking ownership and accountability in a senior role

Qualification:

Diploma in IT Systems Administration (NQF Level 4/5 or similar)
Relevant certifications such as A+, N+, Microsoft certifications, MCITP, or Network Security+

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