Senior Network Engineer

🔥 21 hours ago

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DMI (Digital Management, LLC)

WebsiteLinkedInAll Job Openings

1001 - 5000 employees

Founded 2002

☁️ SaaS

🏢 Enterprise

Technology • SaaS • Enterprise

DMI (Digital Management, LLC) is a leading global provider of digital transformation and managed IT services that operates across both the public and private sectors. DMI's broad capabilities encompass artificial intelligence and data, application development and modernization, security and privacy, and cloud and infrastructure, supporting a diverse range of clients including national security, transportation, automotive, manufacturing, and consumer goods sectors. The company is recognized as an eight-time leader in the Gartner Magic Quadrant for Managed Mobility Services, and its Cloud+ suite offers comprehensive solutions for cloud advancements. DMI is committed to delivering superior customer satisfaction and innovative digital solutions that drive impactful business and mission outcomes for its clients worldwide.

📋 Description

• 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

🎯 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