HiringCafe
Join our community

56 software simulation engineer jobs at 33 companies in Manassas Park, VA

2mo
Save
Mark Applied
Hide
Senior Software Simulation Engineer
Chantilly, Virginia, United States
OnsiteFull Time
By Light Professional IT Services
By Light Professional IT Services: Provides IT systems engineering and cybersecurity solutions for federal agencies.
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
Job PostingView all
1mo
Save
Mark Applied
Hide
Simulation Developer
Quantico, Virginia, United States
OnsiteFull Time
ManTech
ManTech: Provides technology solutions for defense and intelligence agencies.
7+ YOEBachelor's in CS or related (or 10 years experience), 7+ years simulation/game-focused software development, proficiency in C++, C#, Python or Java, experience with simulation engines (AFSIM, OneSAF, Unity, Unreal Engine, etc.), and active TS/SCI clearance.
C++, C#, Python, Java, AFSIM, NGTS, OneSAF, Unity, Unreal Engine, Simio, Arena, SQL
Job PostingView all
4d
Save
Mark Applied
Hide
Graphics Simulation Software Engineer
Dulles, Virginia, United States
$114k-$171k/yr OnsiteFull Time
Northrop Grumman
Northrop GrummanNYSE: NOC: Develops and manufactures advanced aerospace, defense, and space systems.
5+ YOEActive U.S. Top-Secret clearance and U.S. citizenship required; expertise in 3D graphics (OpenSceneGraph/OpenGL/Vulkan), C/C++ and Python; experience building models and simulations; ability to develop on Windows and Linux.
C, C++, Python, Blender, OpenSceneGraph, OpenGL, Vulkan, Jenkins, Jira, Bitbucket, GitLab, Ansible, Docker, Windows, Linux
Job PostingView all
2mo
Save
Mark Applied
Hide
Naval Software Simulation Developer
Dahlgren, Virginia, United States
$110k-$130k/yr OnsiteFull Time
Amentum
AmentumNYSE: AMTM: Provides engineering, technology, and mission support to government agencies.
5+ YOEBachelor's degree or higher in CS/CE/Math; strong CM knowledge; 5 years software integration experience; active SECRET clearance.
GIT, UNIX, Linux, Windows, MS Office
Job PostingView all
1mo
Save
Mark Applied
Hide
Visualization & Simulation Software Engineer
Chantilly, Virginia, United States
OnsiteFull Time
FTS International
FTS International: Providing engineering and mission support to the US Intelligence Community.
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
Job PostingView all
2w
Save
Mark Applied
Hide
Software Engineer – Full-Stack / Simulation
Fredericksburg, Virginia, United States
$112k-$146k/yr OnsiteFull Time
Obsidian Solutions Group: Delivers technology-enabled and mission-oriented solutions to government agencies.
4+ YOE4+ years software development experience; strong skills in modern languages, web visualization, secure real-time data pipelines, game-engine simulation, and AI/ML integration; US citizenship and ability to obtain security clearance.
Python, JavaScript, TypeScript, C#, NetCDF, HDF5, WRF, Unity3D, Google Protocol Buffers (Protobuf), Android Studio, Android Team Awareness Kit (ATAK), AWS GovCloud, AES-256, TLS, Cursor-on-Target, DIS, HLA
Job PostingView all
3w
Save
Mark Applied
Hide
Software Engineer, Agentic Modeling & Simulation
Washington, District of Columbia, United States
$191k-$292k/yr OnsiteFull Time
Anduril Industries
Anduril Industries: Defense technology building autonomous military hardware and software.
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
Job PostingView all
3w
Save
Mark Applied
Hide
Software Engineer - Weapon Launchers & Simulation
Manassas, Virginia, United States
$91k-$101k/yr OnsiteFull Time
General Dynamics Mission Systems
General Dynamics Mission SystemsNYSE: GD: Designs and manufactures defense and mission-critical technology solutions.
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
Job PostingView all
3w
Save
Mark Applied
Hide
Director – Modeling & Simulation Software
El Segundo or Chantilly
$168k-$252k/yr OnsiteFull Time
The Aerospace Corporation
The Aerospace Corporation: Provides technical expertise and research for national space programs.
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
Job PostingView all
3w
Save
Mark Applied
Hide
Senior Software Engineer, World Modeling & Simulation
Washington, District of Columbia, United States
OnsiteFull Time
Applied Intuition
Applied Intuition: Developing software and simulation infrastructure for autonomous vehicles.
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
Job PostingView all
2mo
Save
Mark Applied
Hide
Space Operations Planning and Simulation Engineer
Laurel, Maryland, United States
$100k-$245k/yr OnsiteFull Time
Johns Hopkins University Applied Physics Laboratory
Johns Hopkins University Applied Physics Laboratory: Conducts research and engineering for national security and space.
4+ YOEBachelor’s or Master’s in CS/Software/Engineering/Physics; 4+ years in simulations; Java; orbital mechanics knowledge; strong communication; TS/SCI with poly eligibility; citizenship required.
MATLAB, Linux HPC, GitLab CI, GitHub Actions, Jenkins
Job PostingView all
2mo
Save
Mark Applied
Hide
Software Engineer
Dahlgren, Virginia, United States
OnsiteFull Time
Radiance Technologies
Radiance Technologies: Engineering and technology solutions for defense and intelligence.
Bachelor's in CS/CompE or related; math/statistics; software for simulation; TS/SCI clearance; full software lifecycle; C++/Java; Python or R.
C++, Java, Python, R, Docker, Kubernetes, Git, CI/CD, AFSIM, NGTS, ITASE
Job PostingView all
1mo
Save
Mark Applied
Hide
Software Engineer
Columbia, Maryland, United States
$93k-$140k/yr OnsiteFull Time
TCOM
TCOM: Designs and manufactures persistent surveillance aerostat and ISR systems.
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.
Job PostingView all
1mo
Save
Mark Applied
Hide
Junior Software Engineer (Modeling & Simulation) - TS/SCI
Chantilly, Virginia, United States
OnsiteFull Time
TENICA
TENICA: Provides national security and defense services to government agencies.
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
Job PostingView all
1mo
Save
Mark Applied
Hide
Software Engineer - Midlevel
Dahlgren, Virginia, United States
$120k-$140k/yr OnsiteFull Time
Astrion
Astrion: Provides engineering, cybersecurity, and mission support services.
5+ YOEUS citizen eligible for Secret clearance, BS in CS/CE/engineering, 5+ years experience, C++ (C11), modeling & simulation, multi-threading, QA/testing, version control, IDEs, Agile, mentoring skills.
C++, POSIX, OpenMP, MPI, SSE, GPU, Microsoft Visual Studio, NetBeans, Eclipse, Git, Subversion, Mercurial, Jira, Bugzilla, MATLAB, Simulink, Perl, Python, BASH, NGTS, AFSIM, ITASE, DIS, HLA, TENA
Job PostingView all
1mo
Save
Mark Applied
Hide
Software Engineer II - Advanced Simulation & Training Systems (Onsite)
Sterling or United States
$76k-$144k/yr OnsiteFull Time
RTX
RTXNYSE: RTX: RTX provides advanced aerospace and defense systems and services.
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
Job PostingView all
3w
Save
Mark Applied
Hide
Modeling and Simulations Software Developer
Huntsville or Rockville or Maryland or California
$72k-$123k/yr OnsiteFull Time
BAE Systems
BAE SystemsLondon Stock Exchange: BA: Provides advanced defense, aerospace, and security technology solutions.
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++
Job PostingView all
2mo
Save
Mark Applied
Hide
Backend Software Engineer - Simulations
Arlington or New York City or Seattle or Arlington
OnsiteFull Time
Rune Technologies
Rune Technologies: Develops AI-powered logistics and sustainment software for military operations.
4+ YOE4+ years software engineering; production-grade software; Python/C++/Go; math/physics background; strong ownership.
Python, C++, Go, AWS, Kubernetes, Linux
Job PostingView all
1d
Save
Mark Applied
Hide
Senior Software Developer
Dahlgren, Virginia, United States
$120k-$150k/yr OnsiteFull Time
Modern Technology Solutions
Modern Technology Solutions: A technical services providing advanced modeling, simulation, and analysis for defense customers.
7+ YOEActive Secret clearance and U.S. citizenship, Bachelors in CS/Comp Engineering or related, 7+ years developing high-fidelity C++ modeling and simulation for aircraft/missile/sensor systems, EM development practices, Python/MATLAB experience preferred.
C++, Python, MATLAB, DevSecOps
Job PostingView all
1mo
Save
Mark Applied
Hide
Staff Software Engineer - NOS
Washington, District of Columbia, United States
$150k-$196k/yr OnsiteFull Time
The Nuclear Company
The Nuclear Company: Deploys standardized nuclear reactors for utility-scale energy generation.
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
Job PostingView all