New 
Senior System Engineer
 Quadrant, Inc. | |
 United States, Virginia, Chantilly | |
 Jun 17, 2026 | |
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Senior System Engineer
Chantilly, VA MUST: Experienced Senior System Engineer Active TS clearance or higher required with ability to obtain CI POLY 10+ years of experience in aerospace, space systems, or defense programs Demonstrated experience across the full system lifecycle (requirements, design, integration, test, and operations) Must have Payload knowledge/experience Strong background in space-based ISR systems, radar systems, or RF payloads Experience with one or more of the following: Radar system design or radar signal processing RF payload development and production testing Performance modeling and estimation (e.g., detection, tracking, coverage) Mission data processing or ground system architectures Experience with Model-Based Systems Engineering (MBSE) and SysML tools (e.g., Cameo/MagicDraw) Ability to assess contractor technical performance and provide independent recommendations Strong written and verbal communication skills, including experience briefing senior leadership Bachelor's degree in aerospace engineering, Electrical Engineering, Physics, or related technical field required DUTIES: Senior and Subject Matter Expert Engineers to provide SETA (Systems Engineering & Technical Assistance) support to a government program office responsible for the development and deployment of a space-based Air Moving Target Indicator (AMTI) system. Responsibilities include: Provide independent technical assessment of contractor designs, architectures, and performance Support systems engineering lifecycle activities, including requirements development, design reviews, integration, test, and verification Evaluate radar payload performance, modeling, and system-level trade studies Assess RF hardware development and production testing Support Model-Based Systems Engineering (MBSE) and digital engineering efforts, including system performance modeling and multi-sensor integration Analyze and validate end-to-end mission performance (sensor, ground, processing, dissemination) Participate in and support major program design reviews Provide technical risk identification and mitigation recommendations to government leadership Develop and deliver briefings and decision support materials for senior stakeholders Collaborate with government and contractor teams using tools such as Cameo, Tableau, and Confluence Quadrant is an affirmative action/equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, status as a protected veteran, or status as an individual with a disability. "Healthcare benefits are offered to all eligible employees according to compliance mandated by the Affordable Care Act". | |