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Dennis Sheehan currently serves as Systems Engineering Manager at VAST Data since October 2023. Prior to this role, Dennis held various leadership positions including Sr. SE Director East & Federal at Qumulo (October 2020 - September 2023), Director of Systems Engineering, East at Cohesity (August 2017 - September 2020), and Sr. Director Systems Engineering, Americas/Federal at Tintri (July 2013 - August 2017). Additional experience includes Director of System Engineering at Coraid (August 2010 - July 2013), Federal BRS TC Director at EMC (March 2006 - August 2010), Senior Systems Engineer at Network Appliance (2000 - 2006), and IP Engineer at Verizon Internet Services (1995 - 2000). Dennis holds a Master's degree in Information and Telecommunications from The Johns Hopkins University - Carey Business School (1992 - 1997) and a Bachelor's degree in Finance and MIS from La Salle University (1985 - 1989).