ValidaTek, Inc. · 12 hours ago
Senior Network Administrator
Columbus, OH
Full-time
Onsite
Senior Level, Lead/Staff
$100K/yr - $130K/yr
8+ years expValidaTek, Inc. is a company that modernizes and optimizes IT services for federal civilian and defense agencies. They are seeking a skilled and experienced Senior Network Administrator to support the Defense Information Systems Agency (DISA) by managing and securing network infrastructure in a mission-critical environment.
Information Technology & Services
No H1B
Security Clearance RequiredU.S. Citizen Only
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
Provide mentorship to team members across daytime and evening shifts
Qualification
Required
Active Secret clearance with the ability to obtain a Top Secret clearance
Bachelor's degree in Computer Science, Information Technology, or related field OR equivalent professional experience
DoD 8570 IAT Level II certification (e.g., Security+ CE, CCNA Security, CySA +) – required
8+ years of experience in network administration or engineering in a DoD or enterprise environment
In-depth experience utilizing Juniper and Cisco...Juniper - highly utilized
In-depth understanding of TCP/IP, routing protocols (e.g., OSPF, BGP), VLANs, VPNs, and firewall technologies
Experience configuring and managing Cisco, Juniper, or similar network devices
Configure, manage, and troubleshoot Cisco and Juniper network devices, including routers, switches, and firewalls
Implement and maintain routing protocols (e.g., BGP, OSPF, EIGRP) in mixed Cisco and Juniper environments
Familiarity with DoD RMF, network-related security controls, and eMASS
Proficiency in using 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
Preferred
CCNA, CCNP, or similar vendor certifications strongly preferred
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
Company
ValidaTek, Inc.
ValidaTek is a premier government IT consulting firm based in the Washington DC area that drives technology transformation and secures mission-critical systems for our federal partners.
201-500 employees
Funding
Current Stage
Growth StageLeadership Team
Peter Shortsleeves, CPA, MBA, CPCM
Chief Financial Officer
Said Rachidi
Chief Operating Officer
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