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Senior Systems Administrator

Prime System Solutions
Remote (South Africa) Posted Oct 25, 2026
Full-timeRemote

About this role

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).

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