Senior Systems Administrator

Prime System Solutions · posted Oct 25, 2026

Open to candidates in South Africa

Full-time · Senior

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What this job asks for

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Must have

•5+ years Systems Admin experience
•Windows Server/AD/Group Policy
•Virtualization (VMware/Hyper-V)
•Cloud (M365, Azure, Intune)
•Firewalls, networking, endpoint security
•Compliance frameworks (CMMC, NIST)

Nice to have

•MSP environment experience
•Relevant certifications

Tools and technologies

Windows Server, Active Directory, Group Policy, VMware, Hyper-V, Microsoft 365, Azure, Intune

Read the full posting

We are a fast-growing Managed Service Provider (MSP) delivering IT solutions and security services to a diverse portfolio of clients. Our mission is to provide proactive support, innovative solutions, and best-in-class cybersecurity compliance to help businesses thrive in a secure and scalable IT environment.

We’re seeking a Senior Systems Administrator who can not only manage day-to-day operations but also take the lead on complex projects and guide clients through evolving security frameworks such as CMMC and NIST .

Responsibilities:

Manage, maintain, and optimize client infrastructure including servers, networks, cloud platforms (Azure, Microsoft 365), and security solutions.
Lead and execute IT projects end-to-end (migrations, deployments, upgrades, cloud transitions).
Implement and enforce security frameworks such as CMMC, NIST, and other compliance standards across client environments.
Troubleshoot escalated technical issues (L3) and mentor junior engineers.
Develop and maintain documentation for client systems, policies, and procedures.
Collaborate with internal teams and vendors to deliver solutions on time and within scope.
Monitor system performance and proactively address vulnerabilities, outages, or compliance gaps.

Requirements

5+ years of experience as a Systems Administrator in an MSP environment (preferred).
Strong technical expertise in:
Windows Server / Active Directory / Group Policy
Virtualization (VMware, Hyper-V)
Cloud services (Microsoft 365, Azure, Intune)
Firewalls, networking, and endpoint security solutions
Hands-on experience with compliance/security frameworks ( CMMC, NIST, HIPAA, or SOC 2 ).
Proven track record of successfully delivering IT projects .
Excellent problem-solving skills and ability to manage multiple priorities.
Strong communication skills with both technical and non-technical stakeholders.
Relevant certifications preferred (CompTIA Security+, Microsoft, CISSP, CISM, or CMMC-related credentials).