Senior Network Engineer (Security) (TS)

We are seeking a highly skilled Senior Network Engineer (Security) who will serve as the Subject Matter Expert (SME) for enterprise network security infrastructure. The engineer will design, implement, manage, and optimize critical security controls, including firewalls, VPN systems, intrusion prevention systems (IPS), and network access control (NAC). This role is responsible for securing both perimeter and internal network segments, ensuring resilient, compliant, and mission-ready operations. The selected candidate will support security operations at Joint Base Anacostia-Bolling and must maintain an active TS/SCI clearance. Candidates who do not hold a TS/SCI please do not apply., * Serve as the Subject Matter Expert (SME) for network security infrastructure across mission systems.

• Design, deploy, configure, and maintain enterprise firewalls, IPS, NAC, VPNs, and segmentation technologies.
• Engineer secure network architectures that protect the perimeter and internal network segments from advanced threats.
• Administer and maintain Palo Alto Networks next-generation firewalls (PA-5000 series) and Cisco Adaptive Security Appliance (ASA) platforms.
• Manage site-to-site and remote-access VPN solutions, including security policy enforcement and identity-based access controls.
• Analyze security logs, events, and packet data to detect and respond to threats.
• Support zero-trust initiatives, access segmentation, and least-privilege network design.
• Develop, implement, and maintain security baselines and configuration standards.
• Provide Tier III operational support and perform root cause analysis for complex network security issues.
• Collaborate with cybersecurity teams to ensure compliance with DoD security frameworks, STIGs, and enterprise policies.
• Document configurations, changes, engineering updates, and architectural decisions., MANTECH is seeking a motivated, career-driven, and customer-focused Senior Systems Engineer to join our team in Laurel, MD. You will play a critical role in supporting the enterp…
• 18 days ago, MANTECH seeks a motivated, career-driven, and customer-focused Senior Network Engineer to join our team in Laurel, MD. You will play a critical role in supporting the enterprise …
• 1 month ago +

Koniag Management Solutions, LLC (KMS), a Koniag Government Services (KGS) company, is hiring a Senior Network Engineer (Security). Position requires an active Top Secret/SCI clearance with ability to obtain additional security requirements. Please do not apply if you do not possess the required Top-Secret Clearance., Required Technical Certifications (at least one):

• CISSP (or CCNP Security + CASP+)
• Platform-specific certification (e.g., Palo Alto, Cisco, or equivalent)

Preferred Technical Certifications (Plus):

• CCNP Security
• GCIH or GCIA
• CySA+
• CCIE Security
• GIAC advanced certifications (e.g., GCIA, GWAPT)
• CCSP

Required Technical Knowledge: Strong understanding of:

• Palo Alto Networks PA-5000 series next-generation firewall platforms
• Cisco ASA firewall technologies
• VPN design and management (IPsec, SSL/TLS, DMVPN)
• Intrusion Prevention Systems (IPS)
• Network Access Control (NAC) technologies
• Security zoning, segmentation, micro-segmentation, and zero-trust principles
• Secure routing, switching, and firewall policy design
• Network monitoring, packet capture, and threat detection tools

Preferred Experience:

• Designing enterprise network security architectures in DoD or IC environments.
• Implementing segmentation in hybrid or multi-site mission networks.
• Performing threat analysis, incident response, or vulnerability mitigation for network infrastructure.
• Supporting enterprise security toolsets, SIEM, and intrusion-detection platforms.
• Working with STIGs, SRGs, compliance frameworks, and accreditation processes.

Koniag Government Services (KGS) is an Alaska Native Owned corporation supporting the values and traditions of our native communities through an agile employee and corporate culture that delivers Enterprise Solutions, Professional Services and Operational Management to Federal Government Agencies. As a wholly owned subsidiary of Koniag, we apply our proven commercial solutions to a deep knowledge of Defense and Civilian missions to provide forward leaning technical, professional, and operational solutions. KGS enables successful mission outcomes for our customers through solution-oriented business partnerships and a commitment to exceptional service delivery. We ensure long-term success with a continuous improvement approach while balancing the collective interests of our customers, employees, and native communities. For more information, please visit .