Hybrid Network Engineer( Secret Clearance #26-079)

Strategic Analysis, Inc.; Arlington (VA); On-site; USD 90,000 - 120,000; Full time

Job summary

Strategic Analysis, Inc. is seeking an experienced Hybrid Network Administrator to support and enhance our on-premise and cloud IT infrastructure in Arlington, VA.

You will ensure high availability, security, and performance across enterprise systems by managing network hardware and Microsoft 365 services in a hybrid environment. The role requires 3–7+ years in network or systems administration, strong knowledge of TCP/IP, DNS, and VPNs, experience with Fortinet, VMware ESXi, and Azure AD/Entra

Qualifications

• 3-7+ years of experience in network or systems administration.
• Strong understanding of networking fundamentals: TCP/IP, DNS, DHCP, VLANs, routing, switching, and VPN technologies.
• Hands-on experience with enterprise-grade network hardware (Fortinet switches, Fortigate firewall, Dell EMC and Chassis, Sophos firewall, etc.).
• Proficiency with Windows Server administration and Active Directory.
• Experience with Microsoft 365 administration and hybrid identity environments.
• Familiarity with Azure AD/Entra ID, Conditional Access, MFA, and Azure AD Connect.
• Experience with virtualization platforms (VMware ESXi).
• Familiarity with network monitoring and packet analysis tools (PRTG, SolarWinds).
• Strong understanding of network and cloud security best practices.
• Ability to troubleshoot complex issues across hybrid environments.
• Strong documentation and communication skills.
• Active government Secret or higher-level clearance, or ability to obtain and maintain the clearance required.

Responsibilities

• Administer, monitor, and maintain on-premise network infrastructure including switches, routers, firewalls, wireless systems, and VPN solutions.
• Configure and manage LAN/WAN environments, VLANs, routing protocols, and network segmentation.
• Manage Windows Server environments, including Active Directory, DNS, DHCP, and Group Policy.
• Support virtualization platforms such as VMware ESXi or Hyper-V, including VM provisioning and performance optimization.
• Administer Microsoft 365 services (Exchange Online, Teams, SharePoint, OneDrive) and maintain hybrid configurations.
• Manage Azure AD/Entra ID identity services, including MFA, Conditional Access, SSO, and Azure AD Connect.
• Configure and maintain Intune/Endpoint Manager for device compliance, configuration profiles, and Autopilot deployments.
• Implement and maintain network and cloud security policies, including firewall rules, DLP, Defender for Office 365, and Zero Trust principles.
• Monitor network and system performance using tools such as PRTG, SolarWinds; respond to alerts and outages.
• Perform root-cause analysis and resolve escalated technical issues across both cloud and on-premises environments.
• Support disaster recovery planning, backups, and failover testing.
• Maintain accurate documentation including network diagrams, configuration records, and SOPs.
• Participate in infrastructure upgrades, cloud migrations, and modernization initiatives.
• Collaborate with IT team members to support end users and escalate issues when necessary.

Skills

TCP/IP

DNS

DHCP

VLANs

Routing

Switching

VPN technologies

Windows Server

Active Directory

Microsoft 365

Azure AD/Entra ID

Intune/Endpoint Manager

MFA

Azure AD Connect

VMware ESXi

Hyper-V

PRTG

SolarWinds

Zero Trust

Security policies

Documentation

Troubleshooting

Tools

Fortinet Fortigate

Dell EMC

Sophos Firewall

VMware ESXi

Hyper-V

Intune

Azure AD Connect

PowerShell

PRTG

SolarWinds

Job description

Strategic Analysis is seeking an experienced Hybrid Network Administrator to support, maintain, and enhance our on-premise and cloud-based IT infrastructure. This role is responsible for ensuring high availability, security, compliance, and performance across all enterprise systems by managing the physical network systems (switches, firewalls, servers, etc.) as well as Microsoft 365 (Azure AD/Entra ID, Intune, etc.). The ideal candidate is a versatile, hands-on professional who can troubleshoot complex issues, strengthen security, and ensure seamless connectivity across hybrid environments.

Responsibilities

• Administer, monitor, and maintain on-premise network infrastructure including switches, routers, firewalls, wireless systems, and VPN solutions.
• Configure and manage LAN/WAN environments, VLANs, routing protocols, and network segmentation.
• Manage Windows Server environments, including Active Directory, DNS, DHCP, and Group Policy.
• Support virtualization platforms such as VMware ESXi or Hyper-V, including VM provisioning and performance optimization.
• Administer Microsoft 365 services (Exchange Online, Teams, SharePoint, OneDrive) and maintain hybrid configurations.
• Manage Azure AD/Entra ID identity services, including MFA, Conditional Access, SSO, and Azure AD Connect.
• Configure and maintain Intune/Endpoint Manager for device compliance, configuration profiles, and Autopilot deployments.
• Implement and maintain network and cloud security policies, including firewall rules, DLP, Defender for Office 365, and Zero Trust principles.
• Monitor network and system performance using tools such as PRTG, SolarWinds; respond to alerts and outages.
• Perform root-cause analysis and resolve escalated technical issues across both cloud and on-premises environments.
• Support disaster recovery planning, backups, and failover testing.
• Maintain accurate documentation including network diagrams, configuration records, and SOPs.
• Participate in infrastructure upgrades, cloud migrations, and modernization initiatives.
• Collaborate with IT team members to support end users and escalate issues when necessary.

Qualifications

• 3-7+ years of experience in network or systems administration.
• Strong understanding of networking fundamentals: TCP/IP, DNS, DHCP, VLANs, routing, switching, and VPN technologies.
• Hands-on experience with enterprise-grade network hardware (Fortinet switches, Fortigate firewall, Dell EMC and Chassis, Sophos firewall, etc.).
• Proficiency with Windows Server administration and Active Directory.
• Experience with Microsoft 365 administration and hybrid identity environments.
• Familiarity with Azure AD/Entra ID, Conditional Access, MFA, and Azure AD Connect.
• Experience with virtualization platforms (VMware ESXi).
• Familiarity with network monitoring and packet analysis tools (PRTG, SolarWinds).
• Strong understanding of network and cloud security best practices.
• Ability to troubleshoot complex issues across hybrid environments.
• Strong documentation and communication skills.
• Active government Secret or higher-level clearance, or ability to obtain and maintain the clearance required.

Preferred Qualifications

• Fortinet NSE Certifications
• CompTIA Network+ or Security+.
• Experience with SAN/NAS storage systems.
• Microsoft 365 Administrator Expert or Azure Administrator Associate (AZ-104).
• Experience with backup and disaster recovery tools (Druva, Veeam, etc.).
• Knowledge of physical cabling standards and data center best practices.