Senior Network Administrator
ValidaTek•Pensacola, FL
•Onsite
About The Position
ValidaTek is seeking a skilled and experienced Senior Network Administrator to join its Cybersecurity Systems Support (CSS) team supporting the Defense Information Systems Agency (DISA). The position is responsible for configuring, maintaining, and securing network infrastructure in a mission-critical DoD environment. It is 100% on-site in Pensacola, Florida, and requires strong technical expertise, problem-solving skills, and the ability to work in a dynamic, team-oriented environment.
Requirements
- Active Secret clearance, with the ability to obtain a Top Secret clearance.
- Bachelor’s degree in Computer Science, Information Technology, or a related field, or equivalent professional experience.
- DoD 8570 IAT Level II certification, such as Security+ CE, CCNA Security, or CySA+; required.
- At least 8 years of experience in network administration or engineering in a DoD or enterprise environment.
- In-depth experience with Juniper and Cisco equipment; Juniper is highly utilized.
- In-depth understanding of TCP/IP, routing protocols such as OSPF and 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 such as Wireshark, SolarWinds, and NetFlow.
- Experience with network hardening, STIG compliance, and IAVA remediation.
- Working knowledge of ITIL processes, change management, and configuration management.
Nice To Haves
- CCNA, CCNP, or similar vendor certifications.
- Experience supporting DISA infrastructure, policies, and standards.
- Familiarity with cloud networking and cross-domain solutions (CDS).
- Knowledge of Zero Trust Architecture (ZTA) principles and implementation strategies.
Responsibilities
- Administer, monitor, and support LAN/WAN infrastructures, including routers, switches, firewalls, and network appliances.
- Monitor network performance 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 integration of the network 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, and 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 developing and maintaining network contingency and disaster recovery plans.
- Configure, manage, and troubleshoot Cisco and Juniper network devices, including routers, switches, and firewalls.
- Implement and maintain routing protocols, including BGP, OSPF, and EIGRP, in mixed Cisco and Juniper environments.
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What This Job Offers
Job Type
Full-time
Career Level
Senior
