Tim Chen Sr. Vice President, West Coast Federal & Space Technologies / California Branch Manager Tim Chen serves as the Sr. Vice President, West Coast Federal & Space Technologies / California Branch Manager. Tim brings demonstrated leadership in technology development for propulsion, launch and space vehicles, large scale systems integration and project/ program management. He brings an unique perspective having work both in the private sector and in the government. At NASA, he's currently Program Manager supporting NASA STMD Flight Opportunities program. Previously he has served in leadership role as STMD Program Executive, MSFC Space Launch Systems (SLS), and the Commercial Crew Programs. At Boeing, He was Propulsion & Thermal Deputy IPT Lead on X-37 program. He served as Propulsion Lead for Systems Integration on Delta IV/ EELV program, and as Integration Lead for the MB-XX engine development on Delta IV Advanced Upper Stage (AUS). Prior, he was Program Manager & Chief Engineer on the Rocket Based Combined Cycle (RBCC) program. His previous experience also included the X-33 Reusable Launch Vehicle (RLV) and the National Aerospace Plane (NASP) programs. He has written several technical publications for AIAA and NASA conferences. He is Past-Chair of the ASME Propulsion Technical Committee.