Larry Massengale has had a broad technical and engineering career encompassing military, defense contractor, and civil servant job positions. His multifaceted career involved positions dealing with maintaining weapon systems, engineering design, research and development, production, logistical support, testing and evaluation, life-cycle management, integration, acquisition, sustainment, modification, software engineering management, and multiple other positions. He has been directly responsible for providing professional and scientific expertise requiring knowledge and application of engineering, mathematics, statistical analysis, modeling/simulation, and other scientific principles, methods, and techniques. His credentials include certifications in system engineering, program system engineering, general engineering, test and evaluation engineering, software engineering, cyber engineering, and program management, with a graduate degree in electrical engineering.