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Job #: R-00026866
Location: Annapolis Junction, MD
Category: Software Engineering
Schedule (FT/PT): Full Time
Travel Required: No
Shift: Day
Potential for Telework: No
Clearance Required: Top Secret/SCI with Polygraph
Referral Eligibility: Eligible
Group: Intelligence

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Job Description:

Come support the development and engineering support efforts directed at enhancing the Agency's High Performance Computing (HPC) infrastructure, HPC ecosystem, and HPC Storage capabilities as a HPC Test Engineer.

The HPC Test Engineer analyzes system requirements and concept of operations documents, acquisition plans, and system descriptions to develop evaluation and test plans and procedures, prepare for and conduct the data collection and analysis, and report status and results, primarily focused on HPC performance measurement, modeling and analysis, benchmarking, and system optimization/tuning. This position sits at the intersection of several disparate disciplines, including system architecture, test engineering, software development, and data analytics.

Task Activities:

  • Measure and analyze the performance and scalability of key HPC benchmarks that exercise system components (processor, interconnect, memory, storage, etc.)
  • Measure and analyze performance related to platform specific hardware and software, identify bottlenecks and performance tradeoffs, and help tune customer benchmarks.
  • Propose remedies to identified bottlenecks via software restructuring and/or architectural improvement with comprehensive understanding of any trade-offs in design, cost, and software engineering effects.
  • Investigate/identify performance related issues as they arise and as requested by team leadership
  • Prepare timely reports, papers, and presentations describing significant results for dissemination within customer organization.
  • Contribute performance-related expertise to cross-team activities that may involve performance tuning of applications, interconnects, and/or storage (I/O).
  • Establish best practices for applying lessons learned and optimizations done for a specific system/customer to all future customer engagements.

Basic Qualifications

Eight (8) years experience as a TE in programs and contracts of similar scope, type and complexity is required. Bachelor’s degree in Math, Science, Engineering, Statistics, Engineering Management, or related discipline form an accredited college or university is required. Four (4) years of additional TE experience may be substituted for a bachelor’s degree.

  • Experience with HPC performance engineering and testing, including running benchmarks
  • Proficiency with standard Linux/Unix tools and scripting languages (Python, Bash, Perl, git, etc.)
  • Experience with developing, profiling, and optimizing parallel applications
  • Demonstrated ability to speed up an application or benchmark
  • Experience programming in a low-level language (C/C++, assembly)
  • Strong understanding of HPC architectures:
    • CPU architecture
    • Memory, Data Caches, TLB, Large Pages, etc.
    • Interconnect/High Speed Network
    • Storage (e.g., nVME), shared HPC parallel file systems, etc.
  • Experience with tuning the Linux Operating System
  • Experience with GPU-related software/libraries (CUDA, OpenCL, etc.)

Security Clearance Requirement

Must have an active TS/SCI with a polygraph in order to be considered for this position. 

Preferred Qualifications

  • Experience with multi-threading and parallel programming techniques (MPI, pthreads, OpenMP, etc.)

External Referral Bonus:


Potential for Telework:


Clearance Level Required:

Top Secret/SCI with Polygraph



Scheduled Weekly Hours:




Requisition Category:


Job Family:

Software Engineering


Leidos is a Fortune 500® information technology, engineering, and science solutions and services leader working to solve the world's toughest challenges in the defense, intelligence, homeland security, civil, and health markets. The company's 33,000 employees support vital missions for government and commercial customers. Headquartered in Reston, Virginia, Leidos reported annual revenues of approximately $10.19 billion for the fiscal year ended December 28, 2018. For more information, visit

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