Systems and Network Administrator

Sys Arc is seeking a Washington, DC area-based Network Administrator with expertise in Windows Server, Microsoft 365, hybrid cloud environments, and network infrastructure to support our growing MSP client base.

We are one of the few MSPs in the market with a mature cybersecurity practice that has been fully operational for several years.

We have developed vertical market expertise within the Aerospace & Defense industry and are one of the leaders in DFARS/NIST 800-171/CMMC compliance solutions and are expecting this market to substantially accelerate over the next several years.

As a leading MSP in this space, Sys Arc offers growth opportunities for Network Administrators looking to advance into cloud engineering, cybersecurity, or senior infrastructure roles

The ideal candidate has 3-5 years of experience supporting and managing production network and server environments within an MSP or multi-client setting.

This individual is proactive, organized, and committed to identifying and resolving systemic risks before they impact client operations.

We are seeking someone who thrives on structured processes, values documentation, and is enthusiastic about driving long-term stability, security, and scalability across client environments.

If you are an experienced Network Administrator with MSP experience and strong Windows Server, network infrastructure, and Microsoft 365 skills, we encourage you to apply

• Network administration (LAN/WAN, switches, routers, firewalls)
• Windows Server & Active Directory administration
• Network security, MFA, Conditional Access
• Backup and disaster recovery support
• Troubleshooting and rootcause analysis
• NIST 800171 / CMMC knowledge
• Strong written and verbal communication skills, including the ability to explain technical concepts to non-technical stakeholders

• Perform proactive technology alignment reviews using MyITprocess
• Identify risks, deficiencies, technical debt, and systemic issues before they impact client operations
• Develop and execute remediation plans to improve stability, performance, and security
• Serve as a technical escalation resource for complex network and system issues
• Configure, monitor, and maintain network devices including switches, routers, firewalls, VPNs, and wireless access points
• Troubleshoot LAN/WAN connectivity and performance issues
• Manage VLANs, routing, firewall rules, intrusion prevention, and network security policies
• Monitor system health, resource utilization, availability, throughput, and latency
• Administer and support Windows Server environments including Active Directory, Group Policy, DNS/DHCP, and file/print services
• Manage hybrid identity environments including AD synchronization and Entra n
• Support and maintain virtualized environments (VMware and/or Hyper‑V)
• Configure and maintain Windows endpoint operating environments
• Administer Microsoft 365 tenants including Exchange Online, SharePoint, and Teams
• Manage Microsoft Azure infrastructure and hybrid cloud environments
• Implement and maintain Conditional Access, MFA, and identity security controls
• Manage user accounts, permissions, and authentication across client systems
• Perform patch management, system updates, vulnerability remediation, and endpoint security configuration
• Administer and monitor backup and disaster recovery platforms
• Perform backup testing and recovery validation to ensure business continuity readiness
• Maintain integrity of network infrastructure, server deployments, backup systems, and security controls
• Document all findings, changes, recommendations, and resolutions according to MSP standards
• Maintain accurate network diagrams and technical documentation
• Collaborate with vCIOs and project teams to align…