Systems Modeling jobs in Chantilly, VA

Senior Power Systems Modeling Engineer, Grid Integration

Remote

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Today

Why Work at SMA America At SMA America, we believe in Energy that Changes. Since 1981, we've been developing innovative solar technology that simplifies, secures, and enhances the performance of photovoltaic systems - all while pushing the boundaries of what's possible in clean energy. But we're not just transforming power - we're empowering people. We've built a culture where bold ideas are welcomed, collaboration is second nature, and your career growth truly matters. With our Rocklin, CA h

Full-time

USD 130,000.00 - 157,000.00 per year

Systems Engineer - Modeling & Simulation

Fort Belvoir, Virginia

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Today

Responsibilities **This position is for upcoming work and is contingent upon task award/funding. ** This will be an onsite position at Fort Belvoir, VA. We are seeking an experienced and highly skilled Senior Systems Engineer to support a dynamic government contracting program in Washington, DC. The ideal candidate will bring deep expertise in Modeling and Simulation (M&S) with a strong focus on conventional weapons effects, vulnerability analysis, and systems engineering process management. I

Full-time

USD 176,800.00 - 276,250.00 per year

Sr. Systems Engineer - Modeling (TS/SCI w/ CI Poly required)

Sterling, Virginia

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Today

Active TS/SCI w/ CI Poly required. On-site position. Must have Sec+ or better. Contingent upon contract. Required Education, Experience, & Skills : We are actively seeking candidates with a minimum of 10 years' relevant experience. Bachelor's or master's degree in a STEM field is required. Specific skills include the following: At a minimum, meet DoDD 8140 requirements (Security+ CE Certification) Experience configuring, deploying and maintaining TeamWork Cloud and Cameo (and associated tools

Full-time

Modeling & Simulation Engineer (Systems Engineer, Sr)

Chantilly, Virginia

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Today

Redwire is an innovative space and defense technology company driving advanced capabilities across the aerospace sector. We are looking for a leader who can contribute to concept of operations development, mission solution design, and strategic analysis for spacecraft programs supporting National Security Space. This includes work spanning space domain awareness, space resiliency, mission autonomy, structures, sensors, and next-generation space systems. The Modeling & Simulation Engineer is res

Full-time

USD 85,000.00 - 150,000.00 per year

Modeling-Based Systems Engineer (All levels)

Chantilly, Virginia

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Today

Full-time

USD 82,000.00 - 150,000.00 per year

Software Engineer, Agentic Modeling & Simulation (Systems Engineer, Sr)

Chantilly, Virginia

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Today

Full-time

USD 93,000.00 - 150,000.00 per year

Senior Modeling and Simulation Systems Engineer

Fort Belvoir, Virginia

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Today

Description We are seeking a Senior Modeling and Simulation (M&S) Systems Engineer to directly support the Defense Threat Reduction Agency (DTRA). This is a full-time, on-site position located at DTRA Headquarters at Fort Belvoir, VA. In this role, you will serve as the principal technical authority specializing in the characterization, targeting, and defeat modeling of Underground Facilities (UGFs) and hardened deeply buried targets (HDBTs). You will lead the development, evaluation, and inte

Full-time

Junior Mechanical Engineer - TS/SCI Polygraph Required

Reston, Virginia

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Today

Junior Mechanical Engineer Leidos is seeking a motivated Mechanical Engineer to support critical national security missions in Reston, Virginia. This role focuses on the assessment, reverse engineering, and characterization of complex above-ground and subterranean facilities located in denied-access environments. The successful candidate will apply mechanical engineering principles to analyze facility designs, spatial layouts, operational workflows, and supporting infrastructure to determine f

Full-time

USD 69,550.00 - 125,725.00 per year

Test Engineer (AN/BYG-1)

Manassas, Virginia

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Today

Calling all transitioning Navy Fire Control Technicians! This Jobot Job is hosted by: Madeline Lazarus Are you a fit? Easy Apply now by clicking the "Apply Now" button and sending us your resume. Salary: $85,000 - $95,000 per year A bit about us: We are a leading provider of information technology, logistics management, business process re-engineering, financial management, and administrative support services for the Department of the Navy and Homeland Security. We have an incredible team of

Full-time

USD 85,000.00 - 95,000.00 per year

Senior Mechanical Engineer - TS/SCI Polygraph Required

Reston, Virginia

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Today

Leidos is seeking an experienced Senior Mechanical Engineer to support critical national security missions in Reston, Virginia. This role focuses on the assessment, reverse engineering, and characterization of complex above-ground and subterranean facilities located in denied-access environments. The successful candidate will leverage strong engineering expertise to analyze facility designs, spatial layouts, operational workflows, and supporting infrastructure to determine functional capabiliti

Full-time

USD 131,300.00 - 237,350.00 per year

Principal Mechanical Engineer SME - TS/SCI Polygraph Required

Reston, Virginia

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Today

Principal Mechanical Engineer (TS/SCI Required) Location: Reston, VA Leidos is seeking an experienced Principal Mechanical Engineer to support high-priority national security missions in Reston, Virginia. This role focuses on the assessment, reverse engineering, and characterization of complex above-ground and subterranean facilities located in denied-access environments. The successful candidate will leverage extensive engineering expertise to analyze facility designs, spatial layouts, opera

Full-time

USD 154,050.00 - 278,475.00 per year

ISR Principal Modeling/Simulation Engineer

Chantilly, Virginia

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Today

Job ID: 2615796 Location: Chantilly, VA, US Date Posted: 2026-08-18 Category: Engineering and Sciences Subcategory: Modeling/Sim Engr Schedule: Full-Time Shift: Day Job Travel: Yes - 10% of the time Minimum Clearance Required: TS.SCI_wPoly Clearance Level Must Be Able to Obtain: None Potential for Remote Work: ORA_ON_SITE Description The qualified applicant will provide local support to the Space Warfighting Analysis Center (SWAC), Multi-Domain Sensing Program (MDSP), Space-based Intel

Full-time

USD 160,001.00 - 200,000.00 per year

Mechanical Engineer - TS/SCI Polygraph Required

Reston, Virginia

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Today

Mechanical Engineer Location: Reston, VA Leidos is seeking a talented Mechanical Engineer to support critical national security missions in Reston, Virginia. This role focuses on the assessment, reverse engineering, and characterization of complex above-ground and subterranean facilities located in denied-access environments. The successful candidate will apply mechanical engineering expertise to analyze facility designs, spatial layouts, operational workflows, and supporting infrastructure t

Full-time

USD 87,100.00 - 157,450.00 per year

Lead Mechanical Engineer - TS/SCI Polygraph Required

Reston, Virginia

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Today

Leidos is seeking an experienced Mechanical Engineer to support critical national security missions in Reston, Virginia. This role focuses on the assessment, reverse engineering, and characterization of complex above-ground and subterranean facilities located in denied-access environments. The successful candidate will apply engineering expertise to analyze facility designs, spatial layouts, operational workflows, and supporting infrastructure to determine functional capabilities and mission re

Full-time

USD 107,900.00 - 195,050.00 per year

Model-Based Systems Engineer

Arlington, Virginia

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Today

Looking for an opportunity to make an impact? Leidos is dedicated to making the world a safer place. This starts with helping our customers in the Defense Industry achieve their critical missions. Our dedicated Defense Group employees are solving critical challenges across the globe. At Leidos, we deliver innovative solutions through the efforts of our diverse and talented people who are dedicated to our customers' success. We empower our teams, contribute to our communities, and operate sustain

Full-time

USD 69,550.00 - 125,725.00 per year

Engineer Satellite Systems 3

Dulles Town Center, Virginia

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Today

Location: Dulles Town Center, VA Salary: $70.00 USD Hourly - $90.00 USD Hourly Description: Position: Satellite Systems Engineer Location: Dulles, VA About the Role We are seeking a Principal Systems Engineer to support advanced space system programs and mission-focused initiatives. In this role, you will collaborate with multidisciplinary engineering teams to define system architectures, develop mission concepts, manage requirements, and support major program milestones throughout the system

Contract

USD 70.00 - 90.00 per hour

CWL Systems Engineer

Manassas, Virginia

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Today

Basic Qualifications Bachelor's degree in Systems Engineering, or a related Science, Engineering or Mathematics field, plus a minimum of 2 years of relevant experience; or Master's degree, plus 6 months of relevant experience. CLEARANCE REQUIREMENTS: Department of Defense Secret security clearance is preferred at time of hire. Applicants selected will be subject to a U.S. Government security investigation and must meet eligibility requirements for access to classified information. Due to the n

Full-time

USD 90,833.00 - 100,767.00 per year

Software Systems Engineer

Chantilly, Virginia

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Today

Job ID: 2615967 Location: Chantilly, VA, US Date Posted: 2026-08-20 Category: Engineering and Sciences Subcategory: Systems Engineer Schedule: Full-Time Shift: Day Job Travel: No Minimum Clearance Required: TS.SCI_wPoly Clearance Level Must Be Able to Obtain: None Potential for Remote Work: ORA_ON_SITE Description SAIC is seeking an Software Systems Engineer in Chantilly, VA to support SAIC's large SETA program, supporting the NRO's Ground Enterprise Directorate (GED), Advanced Ground

Full-time

USD 80,001.00 - 120,000.00 per year

Portfolio Architect & Enterprise Systems Engineer

Chantilly, Virginia

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Today

The Aerospace Corporation is the trusted partner to the nation's space programs, solving the hardest problems and providing unmatched technical expertise. As the operator of a federally funded research and development center (FFRDC), we are broadly engaged across all aspects of space- delivering innovative solutions that span satellite, launch, ground, and cyber systems for defense, civil and commercial customers. When you join our team, you'll be part of a special collection of problem solvers,

Full-time

USD 100,300.00 - 150,400.00 per year

Senior Modeling Engineer - TS/SCI Polygraph Required

Reston, Virginia

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Today

Leidos is seeking a highly skilled Modeling Engineer to support critical national security missions for the Defense Threat Reduction Agency and the Defense Intelligence Agency. This position focuses on advanced structural modeling of complex facilities, critical infrastructure, and target environments to enable Countering Weapons of Mass Destruction and Hard and Deeply Buried Target vulnerability and defeat assessments. The ideal candidate will bridge the gap between field-captured spatial data

Full-time

USD 131,300.00 - 237,350.00 per year

Systems Modeling jobs in Chantilly, VA, USA