High Performance Computing (HPC) Computational Scientist

Clearance Level
Dayton, Ohio
Hybrid Workplace
Key Skills For Success

High Performance Computing (HPC)

Large Scale Systems


Parallel Programming


REQ#: RQ148199
Public Trust: None
Requisition Type: Regular
Your Impact

Own your opportunity to work with the largest government agency in the nation. Make an impact by advancing the Department of Defense’s mission to keep our country safe and secure.

Job Description


GDIT is seeking a Computational Scientist to support the High Performance Computing Modernization Program (HPCMP) User Productivity Enhancement and Training (PET). As a Computational Scientist, you will join a team of innovative and savvy engineers and scientists, focusing on building collaborative relationships with the HPC community to better understand their technology needs and challenges. Our team of computational scientists that help solve the HPC challenges for DoD scientists and engineers.

The HPCMP PET team was created to provide expert computational support for users of the supercomputing computing systems within the DoD.  The team serves as a customer-facing presence for the DoD science and technology community, providing SME advice for new initiatives, ongoing projects, and support needs.

Position is hybrid with onsite and remote work.  However, you must live within commuting distance to the client site in Dayton, OH to attend weekly or ad hoc meetings as needed.    


You will join a team of computational experts representing a critical mass of expertise in key areas of support for the HPCMP. These teams provide deep technical expertise in HPC that can be applied to a diverse range of scientific disciplines.

Our teams provide deep technical expertise in HPC that can be applied to a diverse range of scientific disciplines. Sample areas include computational fluid dynamics (CFD); computational structural mechanics (CSM); computational electromagnetics and acoustics (CEA); forces modeling and simulation (FMS); integrated modeling and test environments (IMT); autonomy; high-performance data analytics (HPDA); and physics informed machine learning (ML)/Artificial Intelligence (AI).

  • Engage with HPC community to build an understanding of HPC needs (both current and future) and stay current with new technology solutions and optimizations
  • Drive exploration and innovation of new technologies and capabilities relevant to HPC computing and collaborate with other technical teams to evaluate for future implementation.
  • Qualities:
  • Innovative mindset: Push to understand needs in-depth and think broadly and creatively about solutions.
  • Organization: Track and manage tasks across concurrent efforts with different customer groups, and ensure delivery is on schedule and as planned.
  • Trust: Ability to build and maintain trust of our team and customer base.
  • Science: Be able to understand (at a high-level) what is driving research and how IT can best support and enable this.
  • In this role, a typical day will include:
  • Attending or leading meetings and discussions with team members and customers to troubleshoot complicated technical problems and brainstorm ways to continuously improve our services
  • Working closely with other team members and your Team Lead to enhance and expand fundamental HPC capabilities
  • Occasionally present to senior leadership on HPC best practices, new and interesting cloud technologies, and ways you approached and solved challenging technical issues


  • PhD or MS and five additional years of work experience, in Physical Science/Computer Science/Engineering.
  • Minimum of three years of relevant HPC experience
  • Experience working on technology projects, which includes meeting the schedule on time and managing customer expectations
  • Familiarity with commonly used HPC services (i.e. SLURM schedulers, high performant file systems, such as Lustre or SpectrumScale, modules for installing applications)
  • Ability to clearly present ideas to both technical and non-technical users
  • Experience analyzing solutions components, understanding systems integration challenges, and identifying technology gaps that must be resolved to reach performance targets and functionality requirements
  • Expertise with multiple common scientific computing programming languages and programming models
  • Experience with Linux on large scale systems.
  • Extensive knowledge of HPC and parallel programming techniques (e.g. MPI, OpenMP), in multiple physical science domains.
  • Security Clearance Level: Must be a US citizen and be eligible for a DoD clearance

● Location: Dayton, OH-hybrid
●US Citizenship Required

● Full-flex work week to own your priorities at work and at home
● 401K with company match
● Comprehensive health and wellness packages
● Internal mobility team dedicated to helping you own your career
● Professional growth opportunities including paid education and certifications
● Cutting-edge technology you can learn from
● Rest and recharge with paid vacation and holidays


Work Requirements
Years of Experience

5 + years of related experience

* may vary based on technical training, certification(s), or degree

Travel Required

Less than 10%


U.S. Citizenship Required

About Our Work

We are GDIT. The people supporting some of the most complex government, defense, and intelligence projects across the country. We deliver. Bringing the expertise needed to understand and advance critical missions. We transform. Shifting the ways clients invest in, integrate, and innovate technology solutions. We ensure today is safe and tomorrow is smarter. We are there. On the ground, beside our clients, in the lab, and everywhere in between. Offering the technology transformations, strategy, and mission services needed to get the job done.

COVID-19 Vaccination

GDIT does not have a vaccination mandate applicable to all employees. To protect the health and safety of its employees and to comply with customer requirements, however, GDIT may require employees in certain positions to be fully vaccinated against COVID-19. Vaccination requirements will depend on customer site requirements.

GDIT is an Equal Opportunity/Affirmative Action employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or veteran status, or any other protected class.