Senior Systems Administrator
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Job Description
Senior Systems Administrator managing client infrastructure and cybersecurity compliance for a South African managed service provider. Leading IT projects, L3 support, and CMMC/NIST implementation.
Responsibilities:
- Manage, maintain, and optimize client infrastructure including servers, networks, Azure, Microsoft 365, and security solutions
- Lead and execute IT projects end-to-end, including migrations, deployments, upgrades, and cloud transitions
- Implement and enforce security frameworks such as CMMC, NIST, and other compliance standards across client environments
- Troubleshoot escalated L3 technical issues 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, and compliance gaps
Requirements:
- 5+ years of experience as a Systems Administrator in an MSP environment (preferred)
- Strong technical expertise in Windows Server, Active Directory, and Group Policy
- Experience with virtualization using VMware and Hyper-V
- Experience with cloud services including Microsoft 365, Azure, and Intune
- Experience with firewalls, networking, and endpoint security solutions
- Hands-on experience with compliance/security frameworks including 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 technical and non-technical stakeholders
- Relevant certifications preferred, including CompTIA Security+, Microsoft, CISSP, CISM, or CMMC-related credentials
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