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Systems Engineer Sr with Security Clearance

Company:
Nalley Consulting
Location:
Reston, VA, 20190
Posted:
May 20, 2026
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Description:

Position: Systems Engineer - Sr

LCAT: Senior

Location: Reston, Virginia This position is contingent upon award. Required clearance: TS/SCI with willingness to take CI poly. Candidates with current CI poly taken within the past seven years will be prioritized. Required experience: At least 11 years

Required education: Master's or PhD in Engineering, Physics, Applied Mathematics, Computer Science, or a related field and 11+ years relevant experience in modeling and simulation within a defense or national security environment. Description Nalley Consulting has an opportunity for an experienced Systems Engineer to support on-going research and development efforts for functional characterization of WMD facilities and their associated design. Requirements: * Demonstrate proficiency in software development and coding in languages such as Python, C++, MATLAB, or Java. * Develop modeling and simulation and conduct computational analysis, Monte Carlo simulations, multi-physics modeling, or agent-based modeling. * Use high-performance computing (HPC) environments to run simulations. * Work with tools such as Ansys, Ansys STK, IMEA or similar modeling (and DTRA) modeling software. * Use M&S tools to conduct vulnerability analyses and develop kinetic/non-kinetic defeat mechanisms. * 11+ years relevant experience in modeling and simulation within a defense or national security environment. ABOUT NALLEY CONSULTING Nalley Consulting is a Service Disabled Veteran Owned Small Business working with prime partners to staff Department of Defense and Intelligence Community positions. Created by a U.S. Navy intelligence veteran, Nalley Consulting has grown to include multiple IDIQ vehicles in several states. Nalley Consulting fringe benefits include: * Excellent medical, dental, and vision benefits * PTO * 11 paid federal holidays * Tuition assistance * Paid military-reserve leave * Paid parental leave for birth or adoption * 401k matching up to 5 percent of the base salary * Flex time * Company-paid short-term disability, long-term disability, and life insurance.

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