Systems Engineer, Senior; Senior Exchange Integration Engineer

Type of

Requisition :
Regular Clearance Level Must Currently Possess:
Top Secret/SCI Clearance Level Must Be Able to Obtain:
Top Secret/SCI Public Trust/Other

Required:

None Job Family: IT Infrastructure and Operations

Job Qualifications:

Skills:

End to End Implementation, Escalation Resolution, Patch Testing

Certifications:

CompTIA Security+ CE | CompTIA
- CompTIA, Microsoft Certified Solutions Expert (MCSE):
Server Infrastructure | Microsoft
- Microsoft

Experience:

5 + years of related experience US Citizenship

Required:

Yes

General Dynamics is seeking a highly skilled Senior Exchange Integration Engineer to join our mission-critical engineering team. In this role, you will bridge the gap between development and production, serving as the primary Subject Matter Expert (SME) for Microsoft Exchange across multiple isolated, high-security networks. You will architect, test, and validate configurations in a dedicated laboratory environment, and directly execute the strategic planning, rollout, and lifecycle maintenance across operational production environments.

This role requires a unique balance of rigorous integration lab testing, high-impact Tier 3 escalation support, and strategic engineering planning. Additionally, you will act as a critical troubleshooting liaison for our enterprise users accessing Department of War cloud tenants (DOW
365-Joint and DOW
365-SEC), collaborating directly with external agency technicians to diagnose and isolate complex access issues impacting our workforce. You will also mentor lower-tier administrators to ensure maximum operational uptime.

• End-to-End Exchange Architecture:
  Lead the strategic planning, architectural design, building, and deployment of Microsoft Exchange Server infrastructure in both integration labs and active production environments.
• Tier 3 Escalation Support:
  Serve as the ultimate escalation point for complex messaging and collaboration failures in production; perform deep-dive root cause analysis on highly classified networks.
• Patch Compliance & IAVA Testing:
  Conduct Information Assurance Vulnerability Alert (IAVA) testing on Exchange and System Center suites in the lab to validate that security patches do not impede production functionality before deployment.
• Cross-Domain Mail Flow:
  Maintain, configure, and optimize end-to-end mail flow across separated networks connected via specialized Email Guards; troubleshoot live operational routing anomalies.
• Automation & Monitoring:
  Write, maintain, and execute advanced automation scripts utilizing standard Power Shell and Exchange management cmdlets to automate production monitoring, health checks, and simulated mail flow.
• Workforce Mentorship & Documentation:
  Author and maintain comprehensive standard operating procedures (SOPs), deployment guides, and knowledge-base articles; provide technical training and guidance to Tier 1 and Tier 2 system administrators.
• DOW
  365 & DISA Troubleshooting Liaison:
  Assist enterprise users with complex DOW
  365-Joint and DOW
  365-SEC access issues. Gather technical data and collaborate directly with Defense Information Systems Agency (DISA) technicians to isolate, reproduce, and determine the scope of cloud-tenant anomalies impacting our local workforce (
  
  Note:
  
  Cloud tenant administration is managed externally).
• Infrastructure Integration:
  Configure and manage essential infrastructure dependencies required for production Exchange operations, including Active Directory (AD), Public Key Infrastructure (PKI), Group Policies, and Windows Server environments.

Basic Qualifications

• Education:
  
  Bachelor’s degree in Systems Engineering, Computer Science, Information Technology, or a related field (or equivalent combination of education, technical training, and military/work experience).
• Experience:
  
  Minimum of 5–8 years of direct experience with Microsoft Exchange Server engineering, Windows Server administration, and enterprise-level production support.
• Security Clearance:
  Active Top Secret/SCI security clearance is required.
• U.S. Citizenship:
  Required due to the nature of the classified work environment.

Required Skills & Technical…