KBR is seeking a Systems Engineer to support Model Based Systems Engineering (MBSE) efforts for government programs in Chantilly, Va. Responsibilities: Develop descriptive mission and system models Integrate MBSE tools to support trade studies using COTS APIs and developing custom integrations Analysis of alternatives evaluations of mission and system models Tracking of mission measures of effectiveness and system technical performance measures Trace related analysis models and results to enterprise tools, requests for change, engineering review board, concept of operations and architecture development, risks, schedule, and verification, validation, & test