Lilleigh Stevie is a Systems Engineer at MITRE, where she works on projects in the defense industry performing model-based systems engineering. Lilleigh earned a B.S. in Mathematics and an M.S. in Systems Engineering. Throughout her career, she has researched and applied concepts in modeling languages (SysML v1, SysML v2, LML), artificial intelligence, migrations and transitions, and model-based systems engineering methodologies.