Virtual Career Fair

You are invited to attend the National Center for Computational Sciences (NCCS) Virtual Career Fair taking place Thursday, November 11, 2021 from 1:30 pm ET to 5:30 pm ET. Register below by 11:59pm ET on November 10. 

The NCCS is hiring across a wide range of disciplines from computational and data scientists, system administrators, cyber security professionals, HPC support engineers, and more.  We have positions that span senior professionals, mid-career, and recent college graduates.  We also have a number of postdoc and student internship possibilities.

The NCCS, a division of the Computing and Computational Sciences Directorate at Oak Ridge National Laboratory (ORNL), provides state-of-the-art computational and data science infrastructure for technical and scientific professionals to accelerate scientific discovery and engineering advances across a broad range of disciplines. As an important part of the broader High-Performance Computing (HPC) infrastructure, the division also hosts the Oak Ridge Leadership Computing Facility (OLCF), a Department of Energy Office of Science User Facility. Each year the OLCF provides over 36 million hours of computer time to scientists and engineers.

The OLCF is home to the IBM AC922 Summit supercomputer, the fastest in the United States.  Summit can perform 200 quadrillion calculations per second, or 200 petaflops. Researchers use Summit to investigate otherwise inaccessible global problems: from designing new materials, energy sources, and treatments for disease to modeling complex phenomenon related to weather or space to gaining new insights by analyzing gargantuan amounts of data.

In 2021, the NCCS and the OLCF will debut the Frontier supercomputer. The work to provide the additional power and cooling to run Frontier and the work to prepare researchers to use Frontier has been underway for 3-years.  When it comes online, Frontier will be the nation’s first exascale computer and likely the fastest in the world at 5 to 10 times faster than Summit.

In addition, the NCCS fields supercomputers for other Federal Agencies like the U.S. Air Force and the National Oceanic and Atmospheric Administration (NOAA).

So, please join us to hear about all of the possibilities within the NCCS and also learn more about the upcoming Exascale System and hear from some of the researchers making use of these resources to change the world.


The Career Fair will be hosted within Gather Town.  We will email the connection details and further instructions to all those that register on November 10th.

What to Expect

On the day of the event, you will be able to join the Career Fair at any point between 1:30-5:30 pm ET.  We will offer four short talks at the top of every hour as well as guided virtual tours of our Facilities at 1:45 and 3:45 pm ET.  We will also have NCCS staff at each of the tables to discuss the open positions within their teams and have several 1-1 rooms available for more in-depth conversations.  You may drop in and talk to someone at the tables at any time during the Career Fair, and you are welcome to visit as many tables as you wish.

All times are listed in Eastern Daylight Time, UTC−04:00.

Invited Talks on the Hour

Time Title Invited Speaker
2:00-2:20pm ET AI and Data as Engines for Science at Oak Ridge Leadership Computing Facility Arjun Shankar
3:00-3:20pm ET The Adventures of an Accidental Computational Biomedical Scientist Gina Tourassi
4:00-4:20pm ET Science on Summit and Future Systems Bronson Messer
5:00-5:20pm ET Neuromorphic Computing: Brain-Inspired Computing Systems Katie Schuman

Guided Tours of the NCCS Computing Facilities

Time Tour Description Staff Member
1:45-2pm ET Guided tour of NCCS Computing Facilities Rachel McDowell
2:45-3pm ET Guided tour of NCCS Computing Facilities Bill Renaud

Career Tables

Career Fair tables will be available from 1:30 pm to 5:30 pm ET.

Career Table Name Description Staff Member
Advanced Computing User Assistance The User Assistance team provides technical support and promotes effective use of the NCCS Advanced Computing resources. Members of the UA team develop support documentation, training programs, and enjoy solving complex problems to support researchers on some of the world’s fastest HPC resources and the center’s emerging quantum user program. Chris Fuson
Suzanne Parete-Koon
Ryan Prout
Large-scale System Testing Our HPC engineers put systems to the test to provide a reliable, performant, and stable system to users from all our programs. We conduct testing at different levels from feature-specific tests to full-system application tests. If you are interested in testing brand new software on bleeding edge architectures, stop by to learn more! Verónica G. Melesse Vergara
Tom Papatheodore
Software Environment/Packaging Our HPC software engineers design and deploy a fully-featured software environment for all our systems relying on modern package managers for HPC including Spack. We provide libraries, tools, and applications for all our programs in order to provide the best possible user environment on each system. If you are interested in what it takes to deploy a HPC software stack on the fastest supercomputer in the US, stop by to learn more! Verónica G. Melesse Vergara
Jamie Finney
Operational Software Engineering & Development Our engineers develop operationally-critical, advanced computing software services for the division’s end-users and staff with a focus on system interconnectivity and simplified data accessibility. Aaron Barlow
Suzanne Prentice
Alan Longcoy
Paul Bryant
DevOps and Systems Engineering Our systems engineers design and operate a scalable platform-as-a-service that enables users and facility staff to innovate and deliver application services that are tightly coupled to HPC compute and data resources. Jason Kincl
HPC Scalable Systems Engineering Our engineers administer and support system installation, deployment, acceptance, performance testing, upgrades, problem diagnosis, and troubleshooting of HPC computational resources. This group has deployed several Top500 #1 systems over the past decade including Jaguar, Titan, and Summit and is now in the process of deploying Frontier. Don Maxwell
Science Engagement The Science Engagement section partners NCCS users with experts in scientific domains and computation to obtain optimal scientific results from the center’s computational resources and systems. The members of this section include experts in the chemical and materials sciences; in nuclear physics, such as nuclear structure and quantum chromodynamics; in high energy physics, such as particle physics; in astrophysics, such as stellar evolution and cosmology; and in climate science, geophysics, biology, biomedical sciences, and engineering. Additionally, this section works to improve algorithms and application performance. Tom Beck
Balint Joo
Matt Norman
Phil Roth
Dayle Smith
Security and Information Engineering Our security engineers design and implement HPC-centric security tools keeping performance considerations in mind. We attack the fastest computers in the world in order to find weaknesses and secure them from adversaries. Our data engineers design data ingest pipelines to support the processing of massive amounts of system health information and help researchers apply machine learning techniques to that data in order to gain insight into the workings of HPC systems. Tori Robinson
Data and Edge Computing
Our Data Team and Edge Computing Team are working closely with ORNL Scientific Edge Instruments and are building the tools and interfaces for integrating scientific experiments and instruments into the larger ORNL Edge to Exascale Ecosystem, with a focus on FAIR workflows.
Ben Chance
Sean Wilkinson
Rohit Srivastava
Clara Nguyen
Application Profiling Our application profiling team is working on profiling different applications run on Summit at scale to collect their resource utilization data, which then will be used in the procurement of the upcoming OLCF supercomputers. Seher Acer
Analytics and AI Methods at Scale Our HPC AI researchers work on improving scaling and throughput performance of AI techniques on the OLCF supercomputers. Other areas of focus are in real-time system and facility analytics for the supercomputers and emerging strategies for blending AI with existing HPC applications. J. Austin Ellis Hao Lu
ORNL Human Resources We will have representatives from ORNL’s Human Resources department on hand to answer any questions related to working at ORNL. Kate Carter


Nov 11 2021


1:30 pm - 5:30 pm




Veronica Melesse Vergara
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