Sr. Systems Administrator

Senior Systems Administrator / Infrastructure Architect (MSP – 10+ Years) Location & Role Type

Location:

Columbus, OH (Primarily in-office with limited WFH flexibility)

Type:
Full-Time

Kloud9 IT is seeking a Senior Systems Administrator with architect-level experience to help design, standardize, and support infrastructure across multiple client environments. This role is intended for a highly experienced professional (10+ years) who has worked extensively in MSP environments and is comfortable making architectural decisions, leading complex projects, and serving as the highest technical escalation point.

This position blends hands-on engineering with technical leadership. You will influence how environments are built, secured, documented, and maintained—whileremainingdirectly involved in execution.

• Act as a senior technical authority and final escalation point for complex infrastructure issues
• Design, implement, and maintain scalable, secure client environments
• Own architecture and long-term health of Microsoft 365, Windows Server, and identity platforms
• Architect and support network infrastructure including firewalls, switching, VLANs, routing, and site-to-site VPNs
• Lead high-impact infrastructure initiatives such as Microsoft 365 migrations and modernization projects
• Ensure environments align with security, compliance, and best-practice frameworks
• Partner with security, service delivery, and project teams to align technical decisions with business and compliance requirements
• Produce and maintain high-quality technical documentation and standards
• Provide mentorship and technical guidance to other engineers
• Communicate confidently and professionally with client stakeholders

• 10+ years of professional IT experience
• Extensive MSP experience supporting multiple client environments
• Advanced expertise in Microsoft Windows Server, Microsoft 365, Active Directory / Entra , and network design
• Proven ability to architect solutions—not just support existing systems
• Strong understanding of security fundamentals (MFA, backups, least privilege, endpoint protection)
• Excellent documentation, prioritization, and decision-making skills

• Experience with CMMC, NIST 800-171, or similar security frameworks
• Background supporting regulated or compliance-driven organizations
• Experience defining technical standards and best practices
• Familiarity with MSP tools (RMM, PSA, documentation platforms)
• Relevant Microsoft, networking, or security certifications

Kloud9 IT supports organizations that require reliability, security, and compliance. We value experienced engineers who think strategically, execute cleanly, and raise the technical bar for the entire organization.