Senior Network Engineer

Posted Yesterday
Be an Early Applicant
Hiring Remotely in DC, USA
Remote
Senior level
Information Technology • Consulting • Cybersecurity
The Role
Lead design, implementation, and support of a Cisco-based enterprise network, manage routing/switching/VLANs/DNS/DHCP/VPNs, drive Zero Trust and segmentation initiatives, ensure NIST compliance, perform monitoring and incident response, administer perimeter security, maintain network documentation, and collaborate with cloud, Microsoft, and cybersecurity teams to support audits and modernization.
Summary Generated by Built In
Senior Network Engineer
Clearance Required: Public Trust Tier 2
Remote work is authorized under this contract; however, at the government's discretion

Position Summary
Nationwide IT Services (NIS) is seeking a Senior Network Engineer to provide engineering, operational, optimization, and advisory support for the Congressional Budget Office’s (CBO) Cisco-based enterprise network. This role serves as a senior technical authority responsible for maintaining and enhancing network infrastructure across core, distribution, access, and edge environments while supporting Zero Trust initiatives, incident response, security compliance, and network modernization efforts. The successful candidate will operate with minimal supervision and lead the resolution of complex network issues escalated from the service desk.
Key Responsibilities
  • Design, implement, and support enterprise network infrastructure across core, distribution, access, and edge layers.
  • Manage and optimize routing, switching, VLANs, enterprise DNS, DHCP, VPNs, and related network services.
  • Lead Zero Trust network initiatives, including segmentation, micro-segmentation, least-privilege access, identity-aware controls, and 802.1X deployments.
  • Ensure compliance with NIST SP 800-53, NIST SP 800-207, and Cisco security hardening standards.
  • Perform continuous monitoring, vulnerability management, and network security assessments.
  • Support incident response activities, including containment, forensic analysis, root cause investigations, and remediation efforts.
  • Administer perimeter and public-facing security controls, including firewalls, ingress/egress filtering, and MFA-protected administrative access.
  • Develop and maintain network documentation, architecture diagrams, SOPs, configuration baselines, and change-management records.
  • Conduct security-impact assessments for proposed network changes and enhancements.
  • Serve as a senior technical advisor and collaborate with cloud, Microsoft, cybersecurity, and infrastructure teams.
  • Support audits, compliance reviews, and security assessments.
Required Qualifications
Experience
  • 8+ years of progressive enterprise network engineering experience in Cisco environments.
  • Extensive experience designing, implementing, and supporting enterprise network architectures.
  • Strong knowledge of routing, switching, VLANs, DNS, DHCP, VPNs, and network security technologies.
  • Hands-on experience with Zero Trust networking principles and technologies.
  • Experience supporting incident response, security investigations, and remediation activities.
  • Demonstrated ability to lead technical initiatives and resolve complex network issues independently.
Education
  • Bachelor’s degree in Information Technology, Computer Science, Engineering, or a related field; equivalent experience may be substituted.
Certifications
  • Cisco CCNP Enterprise required/preferred; CCIE strongly preferred.
  • Security-focused certification, such as Security+ or Cisco Security certification, preferred.
  • Current certifications maintained and in good standing.
Technical Skills
  • Cisco routers, switches, and firewalls
  • Cisco ISE and 802.1X / Network Access Control (NAC)
  • Cisco TrustSec, SD-Access, or VLAN/ACL-based segmentation
  • VPN technologies
  • Enterprise DNS and DHCP
  • SIEM and Network Detection & Response (NDR) integrations
  • Cisco security hardening and configuration baselines
  • Configuration, change, and release management processes
Why Join NIS?
At Nationwide IT Services, you’ll be part of an organization committed to delivering exceptional services to government customers while investing in employee growth, wellness, and innovation. NIS embraces modern technologies, flexible work environments, and a mission-driven culture focused on service, resilience, and professional development.
Top of Form
Bottom of Form
 

Skills Required

  • 8+ years enterprise network engineering experience in Cisco environments
  • Designing, implementing, and supporting enterprise network architectures
  • Strong knowledge of routing, switching, VLANs, DNS, DHCP, and VPNs
  • Hands-on experience with Zero Trust networking principles and technologies
  • Experience supporting incident response, security investigations, and remediation
  • Demonstrated ability to lead technical initiatives and resolve complex network issues independently
  • Bachelor's degree in IT, Computer Science, Engineering, or equivalent experience
  • Cisco CCNP Enterprise certification
  • CCIE certification (strongly preferred)
  • Security-focused certification (e.g., Security+ or Cisco Security)
  • Experience with Cisco ISE, 802.1X/NAC, TrustSec/SD-Access or VLAN/ACL segmentation, and MFA-protected admin access
  • Hands-on experience with Cisco routers, switches, firewalls, and perimeter security controls
  • Experience integrating with SIEM and Network Detection & Response (NDR) solutions
  • Familiarity with NIST SP 800-53 and NIST SP 800-207 compliance and Cisco security hardening standards
  • Experience with configuration, change, and release management processes
  • Possess or be eligible for Public Trust Tier 2 clearance
Am I A Good Fit?
beta
Get Personalized Job Insights.
Our AI-powered fit analysis compares your resume with a job listing so you know if your skills & experience align.

The Company
211 Employees

Sign up now Access later

Create Free Account

Please log in or sign up to report this job.

Create Free Account