Principal Systems Solutions Engineer
 By Light Professional IT Services LLC | |||||||||
 United States, Virginia, Fort Belvoir | |||||||||
 Jan 23, 2026 | |||||||||
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Principal Systems Solutions Engineer Job Locations
US-VA-Fort Belvoir
Company Overview By Light Professional IT Services LLC readies warfighters and federal agencies with technology and systems engineered to connect, protect, and prepare individuals and teams for whatever comes next. Headquartered in McLean, VA, By Light supports defense, civilian, and commercial IT customers worldwide. Position Overview Our By Light team, the premier providers of innovative Information Technology (IT) services and communications support to the Department of Defense and Federal Agencies, is growing. We're increasing our team to support the US Army Comprehensive Modernization (COMPMOD) program. The program delivers end-to-end EFIS&T services-including survey and design through installation, security, and testing. This work spans NIPR and SIPR networks, Wi-Fi, VoIP, ISP/OSP infrastructure, and voice modernization across all CONUS Army installations. We're looking for a Principal Systems Solutions Engineer to lead systems engineering efforts for Army network modernization initiatives. You'll develop and guide engineering solutions from concept through final design, providing fielding teams with the technical direction, documentation, and artifacts needed to successfully implement COMPMOD capabilities. You'll work closely with government stakeholders and engineering teams to ensure solutions meet mission requirements, comply with DoD and Army standards, and are ready for deployment and operational use. Responsibilities
Develop system engineering plans to modernize, upgrade, and enhance capabilities across the project lifecycle
Required Experience/Qualifications
Preferred Experience/Qualifications
Special Requirements/Security Clearance
Physical Demands
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