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# Sr. System and Network Engineer (on-site)

- **Company:** CFS, Inc.
- **Location:** Chantilly, VA, United States
- **Experience:** Expert
- **Salary:** $120,000.0 - $145,000.0
- **Contract:** Permanent contract
- **Skills:** Microsoft Windows, Microsoft Azure, Software as a Service, Cloud Computing, IT Management, Microsoft SharePoint, Virtual Local Area Networks, Computer Networking Systems, Computer Network Technologies, Firewalls (Computer Science), Microsoft InTune, Wireless Technologies
- **Published:** September 13, 2026
- **Apply:** https://www.indeed.com/viewjob?jk=21745424952cb89b

## About the Role

* Strong Microsoft 365 administration experience
 * Azure and Intune expertise
 * Networking knowledge including firewalls, switches, and VLANs
 * Experience working within cloud-first or SaaS environments
 * Ability to work onsite in Northern Virginia three days per week

Preferred:

 * CMMC or NIST experience
 * Palo Alto and Aruba experience
 * Government contracting industry experience

## Description

A growing organization is seeking a Senior Systems Administrator to join its cloud-first IT team on a contract-to-hire basis. This individual will serve as a key technical resource supporting Microsoft 365, Azure, networking, and security initiatives in a modern SaaS-focused environment.
What You'll Be Doing:

 * Administer Microsoft 365 including Exchange Online, Teams, SharePoint, Purview, and Security
 * Manage Azure, Entra ID, Intune, policy deployments, and endpoint management
 * Support networking infrastructure including firewalls, switches, wireless technologies, and VLANs
 * Evaluate and improve cloud infrastructure and security posture
 * Provide senior-level technical support and infrastructure administration
 * Partner closely with IT leadership on modernization initiatives