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
![Portrait of Arjun Shankar in suit and blue shirt.](https://nccs.ornl.gov/wp-content/uploads/2023/10/Arjun-Shankar-240x300.jpg)
Arjun Shankar
Interim Division Director
![](https://nccs.ornl.gov/wp-content/uploads/2022/02/ashley_barker_profile_picture_11-240x300.jpeg)
Ashley Barker
OLCF Program Director
![Person in grey suit in front of blue background](https://nccs.ornl.gov/wp-content/uploads/2023/01/Matt-Seiger-240x300.jpg)
Matt Sieger
OLCF-6 Project Director
![](https://nccs.ornl.gov/wp-content/uploads/2023/01/Bronson-Messer--240x300.jpg)
Bronson Messer
OLCF Director of Science
![](https://nccs.ornl.gov/wp-content/uploads/2022/02/jim_rogers_profile_picture_152-240x300.jpeg)
Jim Rogers
Director, Computing and Facilities
![](https://nccs.ornl.gov/wp-content/uploads/2022/02/kevin_thach_profile.jpg)
Kevin Thach
Section Head, Systems
![](https://nccs.ornl.gov/wp-content/uploads/2024/05/veronica_melesse-vergara_profile_picture_56-240x300.jpeg)
VerĂ³nica Melesse Vergara
Section Head, Operations
![](https://nccs.ornl.gov/wp-content/uploads/2022/02/tom_beck_profile_picture_265-240x300.jpeg)
Tom Beck
Section Head, Science Engagement
![Man in a white shirt with dark hair facing the camera](https://nccs.ornl.gov/wp-content/uploads/2022/02/sarp_oral_profile_picture_73-231x300.jpeg)
Sarp Oral
Interim Section Head, Advanced Technologies
![](https://nccs.ornl.gov/wp-content/uploads/2022/02/t.-p._straatsma_profile_picture_32-240x300.jpeg)
T. P. Straatsma
Distinguished Research Scientist
![](https://nccs.ornl.gov/wp-content/uploads/2022/02/paul_abston_profile_picture_218-240x300.jpeg)
Paul Abston
Data Center Manager and Safety Officer
![](https://nccs.ornl.gov/wp-content/uploads/2022/04/tom_bundy_profile.jpg)
Tom Bundy
Quality Assurance Manager
![](https://nccs.ornl.gov/wp-content/uploads/2022/04/Rachel_Clauss_profile.jpg)
Rachel Clauss
Human Resources Business Partner
![](https://nccs.ornl.gov/wp-content/uploads/2022/02/joe_lake_profile.jpg)
Joe Lake
Strategic Programs Manager
![Man in suit and orange tie in front of blue background](https://nccs.ornl.gov/wp-content/uploads/2023/01/David-Langley-Portrait-240x300.jpg)
David Langley
Finance Officer
![](https://nccs.ornl.gov/wp-content/uploads/2023/10/Jessica-Sampsel-240x300.jpg)
Jessica Sampsel
Finance Officer
![](https://nccs.ornl.gov/wp-content/uploads/2022/05/2020-P00033-240x300.jpg)
Betsy Sonewald
Communications Specialist
![](https://nccs.ornl.gov/wp-content/uploads/2022/04/Suzy_Tichenor_profile.jpg)
Suzy Tichenor
Director, Industrial Partnerships
![](https://nccs.ornl.gov/wp-content/uploads/2022/02/linda_weltman_profile_picture_103-240x300.jpeg)
Linda Weltman
Division Administrative Assistant
![](https://nccs.ornl.gov/wp-content/uploads/2022/02/kevin_thach_profile.jpg)
Kevin Thach
Section Head, Systems
![](https://nccs.ornl.gov/wp-content/uploads/2022/02/paul_abston_profile_picture_218-240x300.jpeg)
Paul Abston
Group Leader, HPC Infrastructure Operations
![](https://nccs.ornl.gov/wp-content/uploads/2022/02/ryan_adamson_profile_picture_53-240x300.jpeg)
Ryan Adamson
Group Leader, HPC Cyber Security & Information Engineering
![](https://nccs.ornl.gov/wp-content/uploads/2022/02/elton_cranfill_profile_picture_242-240x300.jpeg)
Elton Cranfill
Group Leader, HPC Clusters
![](https://nccs.ornl.gov/wp-content/uploads/2022/02/dustin_Leverman_profile.jpg)
Dustin Leverman
Group Leader, HPC Storage & Archive
![](https://nccs.ornl.gov/wp-content/uploads/2022/02/don_maxwell_profile_picture_71-240x300.jpeg)
Don Maxwell
Group Leader, HPC Scalable Systems
![](https://nccs.ornl.gov/wp-content/uploads/2023/01/Jeff-Miller-Portrait-240x300.jpg)
Jeff Miller
Group Leader, HPC Infrastructure & Platforms
![](https://nccs.ornl.gov/wp-content/uploads/2023/12/Croxdale-Pic-1.jpeg)
Travis Croxdale
Group Leader, HPC Networking
![](https://nccs.ornl.gov/wp-content/uploads/2023/10/Stephanie-Berlin-240x300.jpg)
Stephanie Berlin
Administrative Assistant
![](https://nccs.ornl.gov/wp-content/uploads/2023/10/Sherry-Chandler-225x300.jpeg)
Sherry Chandler
Administrative Assistant
![](https://nccs.ornl.gov/wp-content/uploads/2024/05/veronica_melesse-vergara_profile_picture_56-240x300.jpeg)
VerĂ³nica Melesse Vergara
Section Head, Operations
![](https://nccs.ornl.gov/wp-content/uploads/2022/02/katie_bethea_profile_picture_47-240x300.jpeg)
Katie Bethea
Group Leader, User Access, Outreach, & Communications
![](https://nccs.ornl.gov/wp-content/uploads/2022/02/chris_fuson_profile_picture_17-240x300.png)
Chris Fuson
Group Leader, User Assistance
![Person in suit and tie in front of trees](https://nccs.ornl.gov/wp-content/uploads/2023/01/Ryan-Prout-Profile-1-237x300.jpeg)
Ryan Prout
Group Leader, Software Services Development
![](https://nccs.ornl.gov/wp-content/uploads/2024/05/veronica_melesse-vergara_profile_picture_56-240x300.jpeg)
VerĂ³nica Melesse Vergara
Group Leader, System Acceptance & User Environment
![](https://nccs.ornl.gov/wp-content/uploads/2023/10/Sonya-Mowery-240x300.jpg)
Sonya Mowery
Administrative Assistant
![](https://nccs.ornl.gov/wp-content/uploads/2022/02/tom_beck_profile_picture_265-240x300.jpeg)
Tom Beck
Section Head, Science Engagement
![](https://nccs.ornl.gov/wp-content/uploads/2022/02/balint_joo_profile.jpg)
Balint Joo
Group Leader, Advanced Computing for Nuclear, Particles, & Astrophysics
![](https://nccs.ornl.gov/wp-content/uploads/2022/02/matt_norman_profile.jpg)
Matt Norman
Group Leader, Advanced Computing for Life Science & Engineering
![](https://nccs.ornl.gov/wp-content/uploads/2022/02/philip_roth_profile_picture_159-240x300.jpeg)
Phil Roth
Group Leader, Algorithms & Performance Analysis
![](https://nccs.ornl.gov/wp-content/uploads/2022/02/tom_beck_profile_picture_265-240x300.jpeg)
Tom Beck
Acting Group Leader, Advanced Computing for Chemistry & Materials
![](https://nccs.ornl.gov/wp-content/uploads/2023/10/Maria-White-225x300.jpeg)
Maria White
Administrative Assistant
![](https://nccs.ornl.gov/wp-content/uploads/2023/10/Myranda-White-225x300.jpeg)
Myranda White
Administrative Assistant
![Man in a white shirt with dark hair facing the camera](https://nccs.ornl.gov/wp-content/uploads/2022/02/sarp_oral_profile_picture_73-231x300.jpeg)
Sarp Oral
Section Head (Interim), Advanced Technologies
![](https://nccs.ornl.gov/wp-content/uploads/2023/06/Rafael-Ferreira-da-Silva-1-233x300.jpg)
Rafael Ferreira da Silva
Group Leader, Workflows and Ecosystem Services
![](https://nccs.ornl.gov/wp-content/uploads/2022/04/olga_kuchar_profile.jpg)
Olga Kuchar
Group Leader, Data Lifecycle Technologies
![](https://nccs.ornl.gov/wp-content/uploads/2023/10/Feiyi-Wang-240x300.jpg)
Feiyi Wang
Group Leader, Analytics and AI Methods at Scale
![](https://nccs.ornl.gov/wp-content/uploads/2023/06/Zimmer_Portrait-240x300.jpg)
Chris Zimmer
Group Leader (Interim), Technology Integration
![](https://nccs.ornl.gov/wp-content/uploads/2023/10/Ashley-Guge-225x300.jpeg)
Ashley Guge
Administrative Assistant
![](https://nccs.ornl.gov/wp-content/uploads/2023/10/Jessica-Whitt-225x300.jpeg)
Jessica Whitt
Administrative Assistant