Sr Network Administrator

The Ventura Group is seeking a highly experienced Sr. Network Administrator to serve as key personnel supporting a high-visibility Federal Government program.

JOB DESCRIPTION 

Work Location: Hybrid (Remote & customer site in Reston, VA)

***Position is contingent on contract award***

Clearance Level: Must have an Active Secret Clearence

About the Job:

The Sr. Network Administrator will be responsible for:

• Design, implement, and manage network systems to ensure optimal performance and security.
• Monitor, manage and optimize LAN/WAN performance and troubleshoot issues to minimize downtime.
• Maintain firewalls, routing/switching, ACLs, segmentation, QoS, & network access control (NAC).
• Ensure DNS/DHCP integrity, IPAM updates, and certificate lifecycle coordination.
• Ensure network security by implementing and maintaining security protocols and measures. Patch network devices, maintain standardized configs, backup/restore device configurations.
• Provide technical support and guidance to end-users and other IT staff.
• Collaborate with other IT professionals to develop and implement IT policies and procedures.
• Administer and manage Cisco TACACS Service and Network Access Control, also Endpoint Posture assessment and remediation.

Qualifications/Experience required:

• 5+ years in enterprise networking (Cisco/Palo Alto/Juniper preferred).
• Relevant certifications (e.g., CCNA, Palo Alto Networks CNSA, CompTIA Network+) are a plus.
• Expertise in routing/switching (BGP/OSPF), firewalls, VPN, wireless, NAC, DNS/DHCP/IPAM.
• Experience with network monitoring/observability tools and config management.
• Strong documentation, incident response, and change management discipline.
• Certifications (preferred): CCNA/CCNP, Network+, PCNSE (if Palo Alto), Azure Fundamentals.
• Network Infrastructure Management: The role demands a deep understanding and experience in managing both Local Area Network (LAN) and Wide Area Network (WAN) services. This includes ensuring continuous availability and optimal performance across multiple Federal offices.
• Cloud Services Management: Expertise in overseeing Microsoft Azure Cloud Services is essential. This involves managing resources Federal website and maintaining the security and performance of online presence.
• Network Monitoring Tools: Proficiency in utilizing various network tools to monitor the health, performance, and security posture of FirstNet’s internal IT network and systems is crucial. This proactive monitoring helps prevent service disruptions and ensures efficient network operations.
• Technical Competency: Experience with a wide range of infrastructure devices and tools. This includes managing network services, overseeing cloud services, and utilizing network monitoring tools.
• Support for Public Safety Operations: Mission-critical ability to ensure effective management of network infrastructure in support of  public safety operations and prevent delays or failures in network services.