At the Intersection of Public and Private Sectors
Senior Network Engineer
Location
United States
Posted
4 days ago
Salary
0
Seniority
Senior
Job Description
Senior Network Engineer
DMI (Digital Management, LLC)
• Design, implement, operate, and optimize Cisco-based network infrastructure, including core, distribution, access, and edge layers for high availability, scalability, and mission resilience • Implement and maintain network security architecture aligned with NIST SP 800-53, NIST SP 800-207 Zero Trust Architecture, and Cisco security best practices • Engineer and enforce Zero Trust network principles, including network segmentation, micro-segmentation, and continuous verification of users and devices • Design and implement least-privilege network access controls with role-based and identity-aware access mechanisms, including 802.1X • Configure and maintain centralized logging, SIEM integration, and NDR tool connectivity to enhance threat detection and incident response readiness • Conduct continuous monitoring and vulnerability assessments; coordinate remediation in alignment with NIST RMF • Secure perimeter and public-facing assets through ingress/egress filtering, firewall rule optimization, and MFA for administrative access • Lead security assessments, audits, and compliance reviews; continuously evaluate and enhance network security posture through emerging best practices • Serve as senior technical advisor to stakeholders; collaborate with cybersecurity, cloud, and operations teams to resolve complex issues and improve architecture • Support incident response with network-level analysis, containment actions, and forensic data collection
Job Requirements
- Bachelor's degree in Computer Science, Information Technology, or a related field; relevant experience and Cisco certifications may be considered in lieu of a degree
- Professional certifications in network engineering or cybersecurity, maintained continuously for a minimum of 5 years
- 7+ years of enterprise network engineering experience, including at least 3 years in a senior or lead engineering role
- Expert-level proficiency with Cisco routing, switching, and firewall platforms; advanced experience with VLANs, DNS, DHCP, and VPNs
- Experience in engineering and managing 802.1X network access control and identity-aware network security
- Experience configuring centralized logging and integrating with enterprise SIEM and NDR platforms
- Experience leading or participating in security assessments, audits, and compliance reviews
- Cisco CCNP or CCIE (or equivalent) certification
- Experience integrating SIEM and NDR platforms for real-time threat detection and alerting
- Experience supporting or leading incident response operations
- Must possess or be eligible to obtain and complete a Public Trust background investigation and/or a Public Trust clearance. Public Trust Tier 2 clearance required.
Benefits
- Virtual health visits
- Commuter perks
- Pet insurance
- Entertainment discounts
- Annual performance reviews
- Tuition assistance
- Internal career growth opportunities
- Generous 401(k) matches
- Life and disability insurance
- Financial wellness tools
- Annual awards
- Service anniversaries
- Referral bonuses
- Peer-to-peer shoutouts
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