2023 NCCS Virtual Career Fair

2023 Virtual Career Fair

You are invited to attend the National Center for Computational Sciences (NCCS) Virtual Career Fair taking place Friday, October 27, 2023 from 1:00 pm ET to 4:30 pm ET. Register below by 11:59pm ET on October, 26

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 opportunities.

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 two of the world’s fastest supercomputers—the Summit IBM AC922 and the Frontier HPE-Cray EX—supported by world-class data management and analysis tools. In May 2022, the OLCF debuted Frontier as the world’s first exascale supercomputer, achieving 1.102 exaflops. That performance was updated in May 2023 to 1.194 exaflops, making it No. 1 on the TOP500 list and faster than the next 4 supercomputers on that list combined. The OLCF’s Summit supercomputer, a 200 peftaflops system, debuted in June 2018, and in May 2023 Summit was still in the top 5 fastest supercomputers in the world.

As supercomputing technology continues to evolve, the OLCF is positioned to remain at the vanguard of high-performance computing on the international stage.

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 opportunities within the NCCS from internships to staff positions, learn more about our HPC infrastructure, 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 October 26th.

What to Expect

On the day of the event, you will be able to join the Career Fair at any point between 1:00-4:30 pm ET.  We will have NCCS staff available 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.

1:30pm ETORISE Student, Internship, and Postdoc ProgramsJordan Stidham
2:00pm ETWorking at NCCSKate Carter
3:30pm ETScience on Summit and FrontierBronson Messer

Career Fair booths will be available from 1:00 pm to 4:30 pm ET.

Career Fair Booths

Career Fair booths will be available from 1:00 pm to 4:30 pm ET.

Career Table NameDescriptionStaff Representatives
Advanced Computing User AssistanceThe 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
Large-scale System TestingOur 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

Togo Odbadrakh

Elijah MacCarthy

John Holmen

Nick Hagerty
Software Environment/PackagingOur 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

Togo Odbadrakh

Elijah MacCarthy

John Holmen

Nick Hagerty
Software Services DevelopmentOur 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.Ryan Prout

Aaron Barlow

Paul Bryant

Alan Longcoy
Workflow and EcosystemsThe Workflow and Ecosystem Services (WES) group specializes in optimizing automated workflows for efficient research execution across distributed computing systems. We integrate diverse computational, storage, and visualization resources, using advanced networking for data transfer. Focused on empowering scientists, we utilize resources from DOE facilities. Our expertise spans computational and FAIR workflows, distributed computing, and programming, driving innovative solutions for streamlined use of varied computing resources.Ketan Maheshwari

Tyler Skluzacek
HPC Scalable Systems EngineeringOur 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, Summit, and Frontier.Don Maxwell
Science EngagementThe 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.
Security and Information EngineeringOur 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.Ryan Adamson

Tori Robinson
HPC Clusters The HPC Clusters Group administers and supports the division’s large-scale cluster computing infrastructure, which includes system installation, deployment, acceptance, performance testing, upgrades, problem diagnosis, and troubleshooting.Elton Cranfill
Analytics and MonitoringThe Analytics and Monitoring team provides researchers, operators, and administrators of NCCS systems with streaming and data analytics services. We develop tools and administer data management platforms to extract and analyze telemetry, event logs, and system state information for NCCS systems. We maintain two core services: STREAM, a central Kafka message bus and CADENCE, an Elastic stack for data storage. Leah Huk

Tim Osborne
HPC Infrastructure and PlatformsThe HPC Infrastructure & Platforms Group designs, implements, and operates all infrastructure services that are common to groups in the Systems Section. In addition, the group provides the OLCF Slate Service. Slate, built on Kubernetes and the Red Hat OpenShift Container Platform, provides a container orchestration service for running user-managed persistent applications that run alongside the OLCF Supercomputer Systems and other OLCF managed large-scale clusters.Jeffery Miller
HPC NetworkingThe HPC networking team administers and supports all networks within CCS. This includes designing, deploying, troubleshooting, and facilitating all network communications as well as adding defense in depth security. HPC Networking also researches, tests, and implements new technologies/equipment to better serve the needs of CCS as well as our special project partners.Travis Croxdale
Analytics and AI Methods at ScaleOur 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.Wes Brewer
Jesse Hines
Internship, Postdoc, and Student ProgramsORNL staff and representatives from the
Oak Ridge Institute for Science and Education (ORISE) will be available to share information on internship, postdoc, and student programs at NCCS.
Jordan Stidham

Michael Whetstone
ORNL Human ResourcesWe will have representatives from ORNL's Human Resources department on hand to answer any questions related to working at ORNL.Kate Carter


Oct 27 2023


1:00 pm - 4:30 pm




Josh Cunningham

Other Organizers

MacKenzie Bellimam
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