Senior Cisco Network Architect — Government (Zero Trust)

Xtreme Solutions Inc; Washington (District of Columbia); On-site; USD 140,000 - 195,000; Full time

Job summary

Xtreme Solutions Inc. is seeking a Senior Network Engineer to serve as the technical lead for the Congressional Budget Office’s enterprise Cisco infrastructure in Washington, DC.

You will lead architecture for core through edge networks, implement Zero Trust security, and mentor a team of engineers in highly secure environments. You will design and optimize network security per NIST standards, coordinate vulnerability remediation, and align with cybersecurity best practices while collaborating

Qualifications

• 10+ years in enterprise network engineering.
• 5+ years in Cisco enterprise environments in a senior role.
• Expertise in network design, modernization, segmentation and perimeter security.
• Experience with regulated environments (federal government, defense, healthcare, financial services).

Responsibilities

• Design, implement, and optimize Cisco enterprise networking environments.
• Lead architecture for core, distribution, access, and edge infrastructure.
• Design security aligned with NIST SP 800-53 and NIST SP 800-207 (Zero Trust).
• Implement network segmentation, micro-segmentation, identity-aware access controls, and least privilege architecture.
• Lead Cisco ISE / 802.1X / NAC implementations and review firewall policies.
• Integrate networking with SIEM and NDR platforms; support assessments and audits.
• Mentor engineers and serve as senior technical adviser to CBO stakeholders.

Skills

Network architecture

Zero Trust

Cybersecurity integration

Documentation skills

Mentoring/leadership

Tools

Cisco ISE

SIEM

NDR

Firewall optimization

NAC

Job description

Xtreme Solutions Inc. is seeking a Senior Network Engineer to serve as the technical lead for the Congressional Budget Office’s enterprise Cisco infrastructure in Washington, DC.

You will lead architecture for core through edge networks, implement Zero Trust security, and mentor a team of engineers in highly secure environments. You will design and optimize network security per NIST standards, coordinate vulnerability remediation, and align with cybersecurity best practices while collaborating