Lead Network Engineer

Xtreme Solutions, Inc

$140K — $195K *
Information Technology
8 - 10 years of experience
Job Overview by Ladders

Qualifications

  • 10+ years of experience in enterprise network engineering
  • 5+ years in a senior engineer or architecture role supporting Cisco environments
  • Expertise in enterprise network design, modernization, segmentation, and perimeter security
  • Experience optimizing firewalls and integrating Cisco ISE / 802.1X and Network Access Control
  • Background in vulnerability management and incident response in regulated environments
  • Strong technical writing skills for engineering documentation and government deliverables

Responsibilities

  • Design and optimize Cisco enterprise networking infrastructure
  • Lead architecture for core, distribution, access, and edge networks
  • Implement security measures in compliance with NIST SP 800-53 and Zero Trust principles
  • Execute network segmentation and manage identity-aware access controls
  • Coordinate firmware management and oversee infrastructure modernization efforts
  • Serve as senior technical advisor to CBO stakeholders and mentor junior engineers
  • Support cybersecurity assessments and compliance review processes

Benefits

  • Professional development and mentorship opportunities
  • Exposure to challenging projects in a highly secure environment
  • Collaboration with government stakeholders
  • Work in a mission-driven organization with meaningful impact
  • Potential for further certification sponsorship or training opportunities
Full Job Description
Job Type

Contract

Description

Location: Washington, DC

Employment Type: Full-Time
Program: Congressional Budget Office (CBO)
Pay Range: $140,000 - $195,000 annually

Position Overview

Xtreme Solutions is seeking a Senior Network Engineer to serve as the technical lead supporting the Congressional Budget Office's enterprise Cisco infrastructure.

This role provides leadership for network architecture, modernization initiatives, Zero Trust implementation, cybersecurity integration, and infrastructure optimization. The successful candidate will collaborate with government stakeholders while mentoring engineering staff and leading network design decisions across highly secure enterprise environments.

What You'll Do
  • Design, implement, and optimize Cisco enterprise networking environments.
  • Lead architecture for:
    • Core networking
    • Distribution
    • Access
    • Edge infrastructure
  • Design network security aligned with:
    • NIST SP 800-53
    • NIST SP 800-207 (Zero Trust)
  • Implement:
    • Network segmentation
    • Micro-segmentation
    • Identity-aware access controls
    • Least privilege architecture
  • Lead Cisco ISE / 802.1X / Network Access Control (NAC) implementations.
  • Review and optimize firewall policies and perimeter security.
  • Integrate enterprise networking with SIEM and Network Detection & Response (NDR) platforms.
  • Lead vulnerability remediation planning and device lifecycle management.
  • Coordinate firmware management and infrastructure modernization.
  • Support cybersecurity assessments, audits, compliance reviews, and incident response.
  • Develop:
    • Architecture diagrams
    • Implementation plans
    • Security impact analyses
    • Validation procedures
    • Rollback plans
    • SOPs
    • Root Cause Analyses
    • Audit evidence packages
  • Serve as the senior technical advisor to CBO stakeholders while mentoring junior engineers.


Requirements

Required Qualifications
  • 10+ years of enterprise network engineering experience
  • 5+ years supporting Cisco enterprise environments in a senior engineering or architecture role
  • Demonstrated expertise in:
    • Enterprise network design
    • Infrastructure modernization
    • Segmentation
    • Perimeter security
  • Experience with:
    • Firewall optimization
    • Cisco ISE / 802.1X
    • Network Access Control (NAC)
    • SIEM and NDR integration
    • Vulnerability management
    • Incident response
  • Experience supporting highly regulated environments such as:
    • Federal Government
    • Legislative Branch
    • Defense
    • Financial Services
    • Healthcare
  • Exceptional technical writing skills with experience producing engineering documentation and government-ready deliverables.

Preferred CertificationsHighly desired certifications include:
  • CCNP Enterprise
  • CCNP Security
  • CCIE Enterprise Infrastructure
  • CCIE Security

Additional preferred certifications:
  • CISSP
  • CISM
  • Security+
  • Cisco CyberOps
  • Fortinet NSE
  • Palo Alto PCNSE
  • Juniper Professional Certifications
  • AWS Networking or Security
  • Microsoft Azure Networking
  • ITIL Foundation
  • RMF / NIST cybersecurity experience


Salary Description

140,000- 195,000

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