2mo
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Senior Software Simulation Engineer
Chantilly, Virginia, United States
OnsiteFull Time
5+ YOEBS in Engineering or Computer Science; 5+ years software engineering experience; proficient in C, C++, FORTRAN, Ada; Visual Studio; GCC; Makefiles; Windows/UNIX/Linux; object-oriented design; knowledge of flight simulation and real-time programming; ability to obtain Secret DOD clearance.
C, C++, FORTRAN, Ada, Visual Studio, GCC, Makefiles, Windows, Unix/Linux
4w
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Visualization & Simulation Software Engineer
Chantilly, Virginia, United States
OnsiteFull Time
1+ YOEUS citizen able to obtain TS/SCI with polygraph; BS in STEM (engineering discipline); 1+ years relevant experience; basic JavaScript and frontend, familiarity with Python, 3D math, and client-server exposure.
Three.js, Python, JavaScript, Git
2w
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Software Engineer - Weapon Launchers & Simulation
Manassas, Virginia, United States
$91k-$101k/yr OnsiteFull Time
2+ YOEBachelor's in Software Engineering or related STEM plus 2 years experience (or Master's plus 6 months); DoD Secret clearance obtainable; US citizenship; experience with Linux, Bash, Java, C/C++, React, TypeScript, and networking preferred.
Linux, Bash, Networking Switches, Java, C, C++, React, Typescript
2w
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Director – Modeling & Simulation Software
El Segundo or Chantilly
$168k-$252k/yr OnsiteFull Time
10+ YOEBachelor's in STEM, 10+ years engineering/scientific experience, track record of technical achievement, experience with C++ or Python, leadership and team-building experience, ability to obtain Top Secret/SCI clearance, occasional domestic travel (<20%).
C++, Python, Java, Go, Rust
3w
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Junior Software Engineer (Modeling & Simulation) - TS/SCI
Chantilly, Virginia, United States
OnsiteFull Time
Active TS/SCI clearance with polygraph required; proficiency in an OOP language (Python, Java, or C++), Git, and databases; full‑stack development and rapid prototyping experience; strong problem‑solving and collaboration skills.
Python, Java, C++, Git, Docker, Kubernetes, NoSQL
1mo
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Software Engineer II - Advanced Simulation & Training Systems (Onsite)
Sterling or United States
$76k-$144k/yr OnsiteFull Time
2+ YOESTEM degree and ~2 years' relevant experience (or advanced degree). Active transferable U.S. secret security clearance required. Working knowledge of C/C++, Windows; experience with Visual Studio/Eclipse, source control, ALM, DevSecOps/Agile preferred.
C/C++, Windows, DevSecOps, Agile, C#, Windows Presentation Formats (WPF), .NET, Python, Perl, Visual Studio, Eclipse, SVN, GIT, ClearCase, JIRA, Confluence, Crucible, Bamboo, ALM
2d
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Principal / Sr. Principal AI Software Engineer
Dulles or Colorado Springs or El Segundo
$138k-$258k/yr OnsiteFull Time
5+ YOEU.S. citizen with active DoD Top-Secret clearance (ability to obtain SCI/SAP), 5+ years AI engineering experience (level dependent), expertise in ML/RL/SL, strong software engineering and simulation experience.
Python, JAX, PyTorch, C++, CUDA, MATLAB/Simulink, Windows, Linux
1mo
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SATCOM Software Engineer, Senior Advisor
Chantilly, Virginia, United States
$146k-$234k/yr OnsiteFull Time
7+ YOETS/SCI with poly required. 7+ years (PhD) / 10+ years (MS) / 12+ years (BS) experience. Experience with SATCOM and weapons systems, TT&C, telemetry, modeling & simulation, data analysis, and SATCOM control/monitoring software; strong briefings and stakeholder engagement skills.
1mo
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(On-site) Computational Physicist/Simulation Engineer - Department of Radiology
Morgantown or Keyser or Beckley
OnsiteFull Time
5+ YOEBachelor's in CS, CE, Physics; 5+ years in C++ and Python; GEANT4/MCNP/GATE experience preferred; healthcare imaging knowledge beneficial.
C++, Python, Linux, Mac, Windows, GEANT4, MCNP, GATE, Data Acquisition (DAQ)
2w
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Sr Principal Engineer Embedded Software
Sterling, Virginia, United States
$142k-$213k/yr OnsiteFull Time
4+ YOEUS citizen able to obtain/maintain Top Secret/SCI clearance; advanced degree in EE/CE or related STEM with 4–8+ years embedded software experience; proficiency in C/C++, Python, Windows/Linux scripting, and revision control; hardware-in-the-loop simulation experience.
C/C++, Python, Windows, Linux, Subversion, Git, Jenkins, Jira, Bitbucket, National Instruments, SpaceWire, MIL-STD-1553, RS-422, UART
1mo
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SATCOM Software Engineer, Senior Advisor
Chantilly, Virginia, United States
$146k-$234k/yr OnsiteFull Time
7+ YOERequires active TS/SCI with polygraph, 7–12+ years of experience depending on degree (7 years with Ph.D., 10 with MS, 12 with BS), experience with SATCOM/weapon systems, TT&C, modeling & simulation, and data/enterprise systems.
2d
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Senior Robotics Engineer
Sterling, Virginia, United States
OnsiteFull Time
5+ YOE5+ years developing automated solutions with 6 DOF robots; proficiency in Python3 or C++ and ROS/ROS2; strong robotics fundamentals, motion planning, simulation, and experience validating software on physical robots.
Python3, C++, ROS, ROS2, unix, linux, sh, bash, zsh, git, CI/CD, ABB, FANUC, KUKA, CNC, 3D printers
2w
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Communications and Signal Processing Research and Development Engineer
State College or Reston or Annapolis Junction
$168k-$319k/yr OnsiteFull Time
14+ YOERequires technical background in communications and signal processing, simulation/analysis experience (MATLAB or Python), ability to prototype with software defined radios, eligibility for Secret-level clearance, and strong written/oral communication.
MATLAB, Python, C++, Software Defined Radios (SDRs)
2w
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Engineering Manager- Control Laws
Manassas, Virginia, United States
$153k-$185k/yr OnsiteFull Time
10+ YOEBachelor's degree and 10+ years relevant experience or equivalent; deep flight controls and control theory expertise; model-based development, simulation, real-time embedded software, and leadership experience required.
model-based development, simulation environments, real-time embedded platform, CI/CD, DO-178, DO-331
1mo
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The One 23 Group - Advanced Solutions Lead
Herndon, Virginia, United States
OnsiteFull Time
5+ YOEBachelor's degree required; 5+ years in product management/software development/engineering/analytics/consulting; technical leadership experience; strong software architecture, cloud, API, simulation, and Unity 3D experience; AI/ML and modeling & simulation preferred.
Unity 3D, R, Python, APIs, Reinforcement Learning