Network Engineer - Senior

Nationwide IT Services, Inc • $100K — $130K *

Washington, DC 20011In-Person

Information Technology

8 - 10 years of experience

Today

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Job Overview by Ladders

Qualifications

8+ years of experience in enterprise network engineering, particularly in Cisco environments.
Proficiency in architecting and operating various network layers (core, distribution, access, edge).
Strong understanding of Zero Trust principles at the network layer, including segmentation and identity-aware access.
Familiarity with NIST SP 800-53 compliance and network security best practices.
Expertise in incident-response processes, including root-cause analysis and remediation.
Experience with perimeter security measures like firewall management and multi-factor authentication (MFA).
Proficiency in change management processes and documentation practices.

Responsibilities

Provide engineering and operations support for Cisco-based enterprise networks.
Lead remediation efforts for incident-response findings and enforce Zero Trust principles.
Resolve complex faults escalated from the service desk with minimal supervision.
Collaborate with cloud, Microsoft, and cybersecurity teams on network-related tasks.
Support audits and assessments related to network compliance and security.
Document network diagrams, SOPs, and maintain configuration baselines.
Monitor and manage network security and compliance protocols continuously.

Benefits

Hybrid work model with on-site requirements.
Engagement with cutting-edge Zero Trust architecture.
Opportunity to work in a collaborative environment alongside cybersecurity and IT teams.
Involvement in critical compliance and security assessments.

Full Job Description

Network Engineer - Senior
Clearance: Public Trust Tier 2
Location & Schedule: Hybrid, with on-site work during business hours at the Ford House Office Building (2nd & D Streets SW, Washington, DC) and CBO data-center facilities.

Role Summary
Nationwide IT Services, NIS, is seeking a senior network engineer to provide engineering, operations, optimization, and advisory support for CBO's Cisco-based enterprise network across the core, distribution, access, and edge layers. Serves as CBO's senior technical adviser, leads remediation of identified incident-response (IR) findings, and enforces Zero Trust across the network. Works with minimal supervision and resolves the most complex faults escalated from the service desk.

Required Experience

8+ years of progressive enterprise network engineering in Cisco environments (senior level).
Architecting and operating core, distribution, access, and edge; routing, switching, VLANs, enterprise DNS, DHCP, and VPNs to hardened, documented standards.
Zero Trust at the network layer: segmentation and micro-segmentation, least-privilege and identity-aware access, and 802.1X.
Network security and compliance to NIST SP 800-53 (AC, CM, SC, AU), SP 800-207, and Cisco hardening best practices; continuous monitoring and vulnerability management.
Incident-response support: containment, analysis, forensics, root-cause analysis, and remediation of findings.
Perimeter and public-facing security: firewall rule management, ingress/egress filtering, MFA for administrative access.
Change management with security-impact analysis; network diagrams, SOPs, and configuration baselines.
Senior advisory; collaborates with cloud, Microsoft, and cybersecurity teams; supports audits and assessments.

Education & Certifications

Recommended (to be competitive): Cisco CCNP Enterprise (CCIE preferred); a security or Zero Trust credential (e.g., Security+ or a Cisco security cert) is a plus.
Bachelor's in IT, Computer Science, or Engineering, or equivalent experience. Current certifications, ideally maintained 5+ years.

Key Technical Skills

Cisco routers, switches, and firewalls; Cisco ISE for 802.1X / NAC; TrustSec / SD-Access or VLAN-and-ACL segmentation; VPNs; enterprise DNS/DHCP; SIEM and NDR integration; hardened Cisco baselines; configuration and change management.

About Nationwide IT Services, Inc

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