3mo
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Simulation Software Engineer
Laurel, Maryland, United States
$85k-$195k/yr OnsiteFull Time
0+ YOEBS in CS/CSE/EE/Physics/Applied Mathematics; experience in C++ and scientific computing; Python/ Matlab; team software practices; security clearance eligibility
C++, Python, Matlab/Simulink, TensorFlow, PyTorch, CUDA, Linux, Windows, CMake, Visual Studio
1w
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Software Engineer, Agentic Modeling & Simulation
Washington, District of Columbia, United States
$191k-$292k/yr OnsiteFull Time
Production backend engineering experience, AI/ML and LLM-powered software knowledge, proficiency in Python or Go, technical degree, ability to work with operators and obtain Top Secret clearance.
Lattice OS, LLM, Python, Go, gRPC, protobuf, Kubernetes, AFSIM, STORM
1w
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Senior Software Engineer, World Modeling & Simulation
Washington, District of Columbia, United States
OnsiteFull Time
7+ YOE7+ years software engineering experience building world/scene representations; expert C++20, computational geometry, spatial indexing, low-latency design; Python and shell scripting; U.S. citizenship and ability to obtain security clearance.
C++20, Python, shell scripting, Cursor, Claude Code, GitHub Copilot, Linux, Docker, Nix, Bazel
1mo
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Software Engineer
Columbia, Maryland, United States
$93k-$140k/yr OnsiteFull Time
5+ YOEBachelor's in Engineering required; minimum 5 years engineering experience (advanced degree may substitute); experience with simulation tools, modeling, testing, documentation, and design reviews.
1mo
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Principal Software Engineer - Advanced Simulation & Training Systems (Onsite)
Sterling, Virginia, United States
$118k-$225k/yr OnsiteFull Time
5+ YOEActive transferable U.S. government security clearance (Secret), U.S. citizenship, STEM degree with 8+ years (or advanced degree with 5+ years), experience with C++, agile development, multi-threaded debugging, and customer travel.
C++, ARINC 429, ARINC 610, MIL-STD-1553, Windows, Linux, Visual Studio, DevSecOps, STL, Python, Perl, GIT, SVN, ClearCase, JIRA, Confluence, Crucible, GitLab CI/CD, Electronic Medical Records (EMR)
2w
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Modeling and Simulations Software Developer
Huntsville or Rockville or Maryland or California
$72k-$123k/yr OnsiteFull Time
4+ YOEUS citizen with Secret clearance, Bachelor's in CS/CE or related plus 4+ years experience, modeling & simulations experience, C++ development, software engineering and testing experience.
C++
1mo
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Backend Software Engineer - Simulations
Arlington or New York City or Seattle or Arlington
OnsiteFull Time
4+ YOE4+ years software engineering; production-grade software; Python/C++/Go; math/physics background; strong ownership.
Python, C++, Go, AWS, Kubernetes, Linux
3w
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Staff Software Engineer - NOS
Washington, District of Columbia, United States
$150k-$196k/yr OnsiteFull Time
8+ YOE8+ years building and shipping production software; strong architecture and design judgment; experience with cloud (AWS) and CI/CD; experience across multiple surfaces; mentoring and cross-team leadership; BS/MS in CS/SE or equivalent.
NOS, AWS, CI/CD, iOS, Android, React Native, Flutter, Unity, Unreal, IoT, OT, XR, VR, computer vision, biometrics, digital twin, simulation
2mo
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Senior Software Engineer, Autonomy Behaviors (R4587)
Boston or Washington
$160k-$240k/yr OnsiteFull Time, Temporary
5+ YOEDevelop autonomy software for unmanned platforms; strong C++, 5+ years in related areas; eligible for US Secret clearance; travel up to 20%.
C++, ROS, OMPL, Simulation tools
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
2w
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Lead Modeling and Simulations Software Developer
Huntsville or Rockville or California
OnsiteFull Time
10+ YOE10+ MgmtUS citizen with Secret clearance, 10+ years experience with Javascript, Typescript, React, Java/Spring, management responsibility, bachelor's degree, and modeling & simulations experience.
Javascript, Typescript, React, Java, Spring Framework, Docker, Kubernetes, Rabbit MQ, TomCat Admin
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
3mo
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1676 - Systems Engineer
Washington, District of Columbia, United States
$135k-$160k/yr OnsiteFull Time
Sigma Defense: Develops tactical communications and intelligence systems for defense.
10+ YOEU.S. citizen with high school/GED plus 15+ years, Bachelor’s with 15+ years, or Master’s with 10+ years in Surface Radar/ECM/EO/IR/Lasers software system design and test.
Model-Based Systems Engineering, Cybersecurity RMF, Simulation
1mo
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Mid Level Test & Evaluation Engineer
Washington, District of Columbia, United States
HybridFull Time
3+ YOEMust be US citizen with active Secret clearance and ability to sustain Top Secret/SCI; bachelor's +5 years or master's +3 years in engineering; experience in test & evaluation, SETR/TEMP knowledge, hardware/software testing, modeling & simulation, MS Office proficiency, and up to 25% CONUS travel.
Microsoft Excel, Microsoft PowerPoint, Microsoft Word, AutoCAD
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)
2mo
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CWMD Computer Programming SME
Arlington, Virginia, United States
$87k-$198k/yr OnsiteFull Time
Experience designing and developing complex software simulations using Python, C++, and Visual Basic for CBRN environments; TS clearance; BS in CS or Engineering.
Python, C++, Visual Basic, Software simulations, Modeling frameworks, CBRN simulations
3w
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Gaming Experience Full Stack Developer
Washington, District of Columbia, United States
$69k-$158k/yr HybridFull Time
3+ YOE3+ years full-stack development (React or Angular), 2+ years with simulation/visualization platforms (Unity, Unreal, Omniverse, NVIDIA), knowledge of C#/C++/Java, Python, SQL, REST APIs, cloud (AWS/Azure/GCP), and ability to obtain a Secret clearance. Bachelor's degree required.
React, Angular, Unity, Unreal, Omniverse, NVIDIA, JavaScript, C#, C++, Java, Python, SQL, RESTful APIs, AWS, Azure, GCP
3mo
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Assistant Research Scientist (PREP0004124)
Gaithersburg, Maryland, United States
$60k-$93k/yr OnsiteFull Time
Master's in Robotics/CS/AI/Data Science or related; knowledge of network communications, UAS (PX4, ArduPilot, AirSim, MAVLink); software engineering for simulation; experience with AI/cloud tools (AWS, GCP, Azure, MLFlow, BigQuery, Snowflake, SQL); programming in Python, C/C++, Qt, JavaScript; dataset curation and ML knowledge. U.S. citizens prefer...
PX4, ArduPilot, AirSim, MAVLink, AWS, GCP, Azure, MLFlow, SQL, BigQuery, Snowflake, Python, C, C++, Qt, JavaScript
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
6d
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Lead Solution Architect, Supply Chain Risk Management Platform
Tysons, Virginia, United States
$150k-$210k/yr OnsiteFull Time
8+ YOEBachelor's in a technical field,8+ years in software engineering/architecture for mission or enterprise systems,Top Secret (SCI-eligible) clearance,experience across data engineering, modeling & simulation, and full-stack delivery.
AWS, Databricks, Apache Airflow, DevSecOps, CI/CD, NIPR, SIPR, JWICS
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