Behind every great organization is a team with a vision. Meet the key decision-makers who are leading the one of nation’s top high performance computing centers.
The Team Behind the Vision

Gina Tourassi
Division Director

Matt Sieger
OLCF-6 Project Director

Justin Whitt
OLCF Program and OLCF-5 Project Director

Bronson Messer
OLCF Director of Science

Jim Rogers
Director, Computing and Facilities

Kevin Thach
Section Head, Systems

Ashley Barker
Section Head, HPC Operations and OLCF-6 Deputy Project Director

Tom Beck
Section Head, Science Engagement

Sarp Oral
Acting Section Head, Advanced Technologies

T. P. Straatsma
Distinguished Research Scientist

Paul Abston
Data Center Manager and Safety Officer

Tom Bundy
Quality Assurance Manager

Rachel Clauss
Human Resources Business Partner

Joe Lake
Strategic Programs Manager

David Langley
Finance Officer

Jessica Sampsel
Finance Officer

Betsy Sonewald
Communications Specialist

Suzy Tichenor
Director, Industrial Partnerships

Linda Weltman
Division Administrative Assistant

Kevin Thach
Section Head, Systems

Paul Abston
Group Leader, HPC Infrastructure Operations

Ryan Adamson
Group Leader, HPC Cyber Security & Information Engineering

Elton Cranfill
Group Leader, HPC Clusters

Dustin Leverman
Group Leader, HPC Storage & Archive

Don Maxwell
Group Leader, HPC Scalable Systems

Jeff Miller
Group Leader, HPC Infrastructure & Networking

Ashley Barker
Section Head, Operations

Katie Bethea
Group Leader, User Access, Outreach, & Communications

Chris Fuson
Group Leader, User Assistance

Ryan Prout
Group Leader, Software Services Development

Verónica Melesse Vergara
Group Leader, System Acceptance & User Environment

Tom Beck
Section Head, Science Engagement

Balint Joo
Group Leader, Advanced Computing for Nuclear, Particles, & Astrophysics

Matt Norman
Group Leader, Advanced Computing for Life Science & Engineering

Phil Roth
Group Leader, Algorithms & Performance Analysis

Tom Beck
Acting Group Leader, Advanced Computing for Chemistry & Materials

Sarp Oral
Acting Section Head, Advanced Technologies

Olga Kuchar
Group Leader, Data Lifecycle Technologies

Rafael Ferreira da Silva
Acting Group Leader, Workflows and Ecosystem Services

Feiyi Wang
Group Leader, Analytics and AI Methods at Scale

Chris Zimmer
Acting Group Leader, Technology Integration