Noblis · 6 hours ago
Network Engineer III
Chantilly, VA
Full-time
Onsite
Senior Level, Lead/Staff
$110K/yr - $172K/yr
8+ years expNoblis is a company that tackles the nation's toughest problems and applies advanced solutions to critical missions. The Network Engineer III will provide expert leadership in designing and managing sophisticated network systems, focusing on security and performance for classified environments.
Information TechnologyNational SecurityNon Profit
No H1B
Security Clearance RequiredU.S. Citizen Only
Responsibilities
Design and implement advanced network systems and communications solutions
Create and maintain comprehensive network security strategies for classified environments
Gather complex user network requirements utilizing multiple methodologies while ensuring compliance with security controls
Develop and maintain extensive technical documentation, system requirements documents, and security requirements for classified networks
Lead troubleshooting and resolution efforts for sophisticated network issues involving various protocols, topologies, and networking hardware in classified domains
Design, deploy, test, certify, and patch critical network components including switches, firewalls, and load balancers in classified environments
Address complex interoperability issues for all features, components, and application dependencies across classification boundaries
Lead incident response for critical network issues within designated resolution timelines
Qualification
Required
US Citizenship is required
Bachelor's degree OR Master's degree with 8 years of experience OR Associate degree with 11 years of experience OR High School diploma with 14 years of experience
Minimum of 8 years of experience in network engineering/administration
Active Top Secret (TS) clearance with eligibility for Sensitive Compartmented Information (SCI) and ability to obtain a Counterintelligence (CI) Polygraph
Comprehensive understanding of multi-enclave network environments
Demonstrated experience designing and implementing secure networks in classified government environments
Proficiency with: Enterprise network hardware (Cisco, SonicWall, or Arista) configuration in classified environments
Cloud networking, preferably Amazon Web Services (AWS)
Advanced implementation of network protocols (TCP/IP, DNS, DHCP, HTTP/S, NTP) with security hardening
Advanced load balancer implementation and configuration for classified applications
Secure VPN technologies and encrypted tunneling for classified data transmission
Strong experience with authentication, encryption, and directory services, including SSL/TLS, LDAP, and secure credential handling
Advanced network security principles and practices including zero-trust architecture
Enterprise network monitoring, analytics, and troubleshooting tools for classified networks including Wireshark, packet capture/packet scan, Splunk, SolarWinds, Elastic Stack, etc
Network performance optimization while maintaining stringent security controls
Network segmentation and isolation techniques for classified domains
Advanced knowledge of IDS/IPS deployment and management
May require flexible scheduling to support critical operations in Top Secret environments
Must be able to respond to critical network incidents within designated resolution timelines (Critical: 8 hours, High: 24 hours, Medium: 48 hours, Low: 72 hours)
Preferred
Active TS/SCI with CI Polygraph
Relevant network certifications (CCNP, CCIE, or equivalent) preferred
Security certifications (CISSP, Security+) preferred
Experience designing and implementing networks within SCIFs
Experience with Nutanix
Experience with cross-domain and high-assurance encryption solutions, including TACLANEs and NCAP-integrated environments
Background in security accreditation for classified networks
Expertise in network traffic analysis within classified environments
Prior work with specialized networking requirements for intelligence community operations
Benefits
Health, life, disability, financial, and retirement benefits
Paid leave
Professional development
Tuition assistance
Work-life programs
Company
Noblis
Noblis is a nonprofit science, tech strategy organization that works in the public interest to help clients solve most complex problems.
1001-5000 employees
Funding
Current Stage
Late StageLeadership Team
Mile Corrigan
President and CEO
William Streilein
Chief Technology Officer
Recent News
Washington Technology
2025-10-21
Washington Technology
2025-10-11
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