Sr. System and Network Engineer (on-site)

CFS; Chantilly (VA); Hybrid; USD 120,000 - 130,000; Full time

Job summary

CFS is seeking a Sr. System and Network Engineer to join our cloud-first IT team in a hybrid Northern Virginia environment. You will administer Microsoft 365, manage Azure, Entra ID, and Intune, and oversee networking with firewalls, switches, and VLANs, while advancing security posture and cloud infrastructure initiatives.

The role is onsite three days per week with remote flexibility, offering a base salary in the 120k–130k range and potential up to 145k for highly qualified candidates.

Qualifications

• Strong Microsoft 365 administration experience.
• Azure and Intune expertise.
• Networking knowledge including firewalls, switches, and VLANs.
• Experience working within cloud-first or SaaS environments.

Responsibilities

• 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.

Skills

Microsoft 365 administration

Azure

Intune

Networking

Firewalls

VLANs

Cloud-first environments

SaaS environments

Tools

Palo Alto

Aruba

Job description

Sr. System and Network Engineer | Hybrid | Northern Virginia
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

Requirements

• 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

Compensation

• $120,000-$130,000 base salary with flexibility up to $145,000 for highly qualified candidates.

Schedule

• Hybrid schedule with 3 days onsite and 2 days remote.
• This is an excellent opportunity for a hands-on cloud infrastructure professional seeking autonomy, visibility, and the opportunity to help drive technology initiatives in a collaborative environment.

#CFSSEP2026
#INSEP2026
#CBSEP2026
#ZRCFSTECH