Computer Systems Engineer​/Architect

Location: Winchester, Virginia 22601 — On-Site
Employment Type: Full-Time | Permanent
Industry: Defense & Space / Information Technology
Experience Level: Mid-Senior Level
Experience

Required:

10+ Years
Security Clearance: Active Secret Clearance Required
Relocation Assistance: Available
Visa Sponsorship: Not Available
Number of Openings: 1

Global Placement Firm is conducting a confidential search for an experienced Computer Systems Engineer / Architect to support a mission-critical defense communications modernization initiative based in Winchester, Virginia.

Our client is seeking a highly skilled senior-level Systems Engineer / Architect to support Enhanced 9-1-1 (E-911) implementation activities associated with U.S. Army Voice Modernization initiatives.

This position provides advanced systems engineering, IP network architecture, and technical integration support focused on emergency services routing, location information provisioning, interoperability coordination, and technical risk reduction supporting Army Public Safety Answering Point (PSAP) connectivity.

The selected candidate will play a critical role in modernizing emergency communications infrastructure supporting U.S. Army installations worldwide.

The ideal candidate will possess extensive experience in systems or network engineering, enterprise communications, SIP/VoIP technologies, E-911/NG911 environments, and Department of Defense or federal network operations.

An active Secret security clearance is mandatory.

• Provide senior-level systems engineering support for emergency communications infrastructure and Army Voice Modernization initiatives.
• Conduct system architecture reviews, interface analysis, integration assessments, and technical evaluations.
• Coordinate provisioning activities with government stakeholders, prime contractors, and technical teams.
• Evaluate network architecture, identify integration challenges, and recommend technical improvements.
• Support interoperability across enterprise voice, IP networking, and emergency communications platforms.

• Analyze IP routing dependencies associated with E-911 and NG911 emergency call delivery.
• Troubleshoot SIP signaling, VoIP communications, and emergency call-path issues.
• Evaluate network interconnection performance, routing configurations, and communication reliability.
• Utilize Wireshark and related diagnostic tools to analyze network traffic and resolve technical issues.
• Support enterprise communications environments requiring high availability and operational reliability.

• Support emergency communications integration with Army Public Safety Answering Points.
• Assist with location information provisioning, record validation, and emergency services routing accuracy.
• Support DISA Voice Internet Service Provider (VISP) location provisioning activities.
• Investigate and resolve location discrepancies affecting emergency call routing.
• Coordinate technical integration activities involving government and contractor communications systems.

• Identify technical risks, system dependencies, and potential interoperability issues.
• Develop technical recommendations and mitigation strategies.
• Escalate complex engineering issues and coordinate resolution with appropriate stakeholders.
• Participate in technical reviews, engineering discussions, and project coordination meetings.
• Provide technical documentation, assessments, and recommendations supporting successful implementation.

Candidates must meet the following minimum requirements:

• Minimum 10 years of professional experience in systems engineering or network engineering.
• Minimum 5 years of experience with IP routing and enterprise communications infrastructure.
• Demonstrated experience with SIP/VoIP technologies and related troubleshooting.
• Hands‑on experience supporting E-911 or Next Generation 911 (NG911) environments.
• Experience supporting Department of Defense (DoD) or federal government networks.
• Proficiency using Wireshark for packet analysis, network diagnostics, and troubleshooting.
• Strong understanding of IP networking, voice communications, network routing, and systems integration.
• Experience conducting technical assessments, troubleshooting complex systems, and identifying operational risks.
• Ability to collaborate effectively with government stakeholders, prime…