Meet key managers in the NASA Advanced Supercomputing (NAS) Division. To see where they fit in the NAS organization, check our current organization chart.
Piyush Mehrotra oversees the full range of high-performance computing services for NASA's primary supercomputing center, sets high-level objectives for the division, and coordinates technical strategy with agency management. Read Full Bio
Bryan Biegel focuses on creating a productive, high-impact organization, and serves as NASA representative to various interagency working groups. Read Full Bio
John Parks is responsible for overall facility planning, engineering, and operations activities for the entire NAS facility. Read Full Bio
Ana Grady-Hiser's responsibilities range from strategic planning and budget preparation to ensuring an excellent safety record at the NAS Facility. Read Full Bio
Arsi Vaziri is responsible for information security on NAS systems, and develops long-range plans and policies that help minimize risks associated with IT system vulnerabilities. Read Full Bio
Mark Tangney oversees management of NAS facility modifications made to support the supercomputers and subsystems.
Cetin Kiris is responsible for orchestrating all aspects of the NAS Applied Modeling and Simulation operations, including providing technical direction and strategic planning. Read Full Bio
Jerry Yan manages a group of experts working on high-end computing (HEC) tools and technologies, and coordinates support for the NAS user community in effectively utilizing supercomputing resources. Read Full Bio
Bill Thigpen manages staff and activities for key system development efforts, and is responsible ensuring delivery of world-class supercomputing resources and services supporting NASA missions. Read Full Bio
Terry Holst leads a group of researchers who develop a broad range of computational methods and the associated applications software to solve engineering and scientific problems that are important to NASA and the nation. Read Full Bio