Senior Network Admin - DoD Cyber & RMF (On-Site Pensacola)

ValidaTek, Inc.; Pensacola (FL); On-site; USD 100,000 - 140,000; Full time

Job summary

ValidaTek, Inc. seeks a skilled Senior Network Administrator to join the Cybersecurity Systems Support team supporting the DISA in a 100% on-site role in Pensacola, FL. You’ll configure, maintain, and secure LAN/WAN networks in a DoD setting, collaborating with cybersecurity and sysadmin teams.

Required are extensive DoD network experience, RMF/STIG familiarity, and Cisco/Juniper device proficiency. Expected to work in a dynamic, mission-driven environment with strong problem-solving skills.

Qualifications

• Active Secret clearance with ability to obtain Top Secret clearance.
• Bachelor’s degree in Computer Science, Information Technology, or related field OR equivalent professional experience.
• 8+ years of experience in network administration or engineering in a DoD or enterprise environment.
• In-depth experience utilizing Juniper and Cisco devices.
• Strong knowledge of TCP/IP, routing protocols (OSPF, BGP), VLANs, VPNs, and firewall technologies.
• Experience configuring and managing Cisco, Juniper, or similar network devices.
• Familiarity with DoD RMF, network-related security controls, and eMASS.
• Proficiency with network diagnostic tools (e.g., Wireshark, SolarWinds, NetFlow).
• Experience with network hardening, STIG compliance, and IAVA remediation.
• Working knowledge of ITIL processes, change management, and configuration management.

Responsibilities

• Administer, monitor, and support LAN/WAN infrastructures, including routers, switches, firewalls, and network appliances.
• Perform network performance monitoring and troubleshoot connectivity and performance issues.
• Plan and implement network upgrades and configuration changes with minimal downtime.
• Manage network security protocols, including firewall rule sets, VPNs, and access control policies in accordance with DoD cybersecurity standards.
• Support network integration with cybersecurity tools, including HBSS, ACAS, and SIEM platforms.
• Maintain compliance with DoD STIGs and IA Vulnerability Management (IAVM) directives.
• Collaborate with cybersecurity and system administration teams to implement RMF security controls and support ATO/IATT efforts.
• Manage and document network configurations, diagrams, and change logs.
• Perform packet capture analysis, port scanning, and network vulnerability assessments as required.
• Coordinate with vendors and DISA stakeholders to resolve hardware/software/network issues.
• Respond to and support network-related incident response activities and investigations.
• Provide subject matter expertise on network architecture, segmentation, and enclaving.
• Participate in the development and maintenance of network contingency and disaster recovery plans.

Skills

Active security clearance

TCP/IP knowledge

Routing protocols (OSPF, BGP)

Firewall technologies

Education

Bachelor's degree or equivalent

Tools

Juniper devices

Cisco devices

Wireshark

SolarWinds

NetFlow

Job description

ValidaTek, Inc. seeks a skilled Senior Network Administrator to join the Cybersecurity Systems Support team supporting the DISA in a 100% on-site role in Pensacola, FL. You’ll configure, maintain, and secure LAN/WAN networks in a DoD setting, collaborating with cybersecurity and sysadmin teams.

Required are extensive DoD network experience, RMF/STIG familiarity, and Cisco/Juniper device proficiency. Expected to work in a dynamic, mission-driven environment with strong problem-solving skills.