High Performance Computing Engineer - Mid-level

Company: GD Information Technology
Location: Mc Lean
Posted on: April 1, 2026

Job Description:

Type of Requisition: Regular Clearance Level Must Currently Possess: Top Secret SCI Polygraph Clearance Level Must Be Able to Obtain: Top Secret SCI Polygraph Public Trust/Other Required: None Job Family: IT Infrastructure and Operations Job Qualifications: Skills: Automation, Scripting, Tooling Certifications: None Experience: 6 years of related experience US Citizenship Required: Yes Job Description: HPC Engineer Who You Are You are a talented, multidiscipline engineer versed in getting the best performance out of systems. You are familiar with High Performance Computing using both CPU and GPU based systems. You understand scheduling using SLURM, computing using MPI, and operating software at scale. What you will be doing: Playing a key role in defining and operating some of the most complex computer platforms that the client has to bring to bear against complex problems. These systems enable complex analysis, simulation and modeling leveraging massively parallel computing and disparate holding of very large data sets, to answer difficult questions. To do this you will assist the users in deploying jobs to these systems to harness the capabilities of these systems producing answers in the form of analytic product, models and simulations. This mission enablement is the heart of the hardest problems to solve. Specific duties include: • Responsible for the normal day-to-day HPC operations and maintenance of the HPC systems • Provide day to day systems administration duties for Nvidia GPUs, Commodity Cluster Systems and Cray HPC environments • Perform system monitoring, software installations, debug, upgrades, health checks, and identification/implementation of automated business processes • Provide assessments, on-going performance analysis and recommendations for future architectures • Responsible for operating all the host systems for analysis • Works in a liaison role, linking the analysts and their specialty codes and applications, to the computing systems that are focused on yielding in-depth technically sound results. •Oversees analytic applications running on a clustered HPC fabric including CPU and GPU systems • Managing job submission to clients applications and codes using MPI/OpenMPI • Provide in-depth analytic results, to achieve a best-tool-for-the-job approach. • Partners with data scientists, engineers, and analysts conducting specialized scientific and engineering analysis. • Escalate issues and problems to hardware support and/or engineering management as necessary • Responsible for continuous performance analysis and tuning the HPC environment • Assist with the identification, troubleshooting, and repair of software problems impacting performance of implemented HPC solutions • Perform installation of software patches including upgrades to operating systems and firmware • Assist with the resolution of trouble tickets and software problems identified by system’s users • Identify and expand services and functionalities offered in HPC environment • Be a primary point of contact to resolve any hardware or software malfunctions, including working with service personnel as necessary • Review system logs to identify and resolve software and systems related issues • Prepare reports related to the operational efficiency of the hardware and execution of users jobs • Experience with MPI/OpenMPI, SLURM, and Linux Operating Systems essential • Prior experience as a Systems Administrator essential, with a preference for experience working with clustered systems including GPUs in the hardware stack • Experience with high speed networking, and CUDA preferred • Software integration experience a plus • Other duties could be required to support the customer’s mission What you will need to succeed: • Minimum of 6 years demonstrated on-the-job experience • Security clearance required: TS/SCI w/ Polygraph • Demonstrated on-the-job experience with integrating functionality from disparate systems via scripting/tooling/automation • Demonstrated on-the-job experience with the Sponsor's system security environment and requirements • Demonstrated experience leading systems architecture, operations, maintenance and administration GDIT IS YOUR PLACE At GDIT, the mission is our purpose, and our people are at the center of everything we do. Growth: AI-powered career tool that identifies career steps and learning opportunities Support: An internal mobility team focused on helping you achieve your career goals Rewards: Comprehensive benefits and wellness packages, 401K with company match, and competitive pay and paid time off Community: Award-winning culture of innovation and a military-friendly workplace MD_2026Alumni IntelligenceEngineered The likely salary range for this position is $207,386 - $280,582. This is not, however, a guarantee of compensation or salary. Rather, salary will be set based on experience, geographic location and possibly contractual requirements and could fall outside of this range. Scheduled Weekly Hours: 40 Travel Required: None T elecommuting Options: Onsite Work Location: USA VA McLean Additional Work Locations: Total Rewards at GDIT: Our benefits package for all US-based employees includes a variety of medical plan options, some with Health Savings Accounts, dental plan options, a vision plan, and a 401(k) plan offering the ability to contribute both pre and post-tax dollars up to the IRS annual limits and receive a company match. To encourage work/life balance, GDIT offers employees full flex work weeks where possible and a variety of paid time off plans, including vacation, sick and personal time, holidays, paid parental, military, bereavement and jury duty leave. To ensure our employees are able to protect their income, other offerings such as short and long-term disability benefits, life, accidental death and dismemberment, personal accident, critical illness and business travel and accident insurance are provided or available. We regularly review our Total Rewards package to ensure our offerings are competitive and reflect what our employees have told us they value most. We are GDIT. A global technology and professional services company that delivers consulting, technology and mission services to every major agency across the U.S. government, defense and intelligence community. Our 30,000 experts extract the power of technology to create immediate value and deliver solutions at the edge of innovation. We operate across 50 countries worldwide, offering leading capabilities in digital modernization, AI/ML, Cloud, Cyber and application development. Together with our clients, we strive to create a safer, smarter world by harnessing the power of deep expertise and advanced technology. Join our Talent Community to stay up to date on our career opportunities and events at gdit.com/tc . Equal Opportunity Employer / Individuals with Disabilities / Protected Veterans

Keywords: GD Information Technology, Dale City , High Performance Computing Engineer - Mid-level, IT / Software / Systems , Mc Lean, Virginia