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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior Software Engineer - **Company:** ASTRION, INC. - **Location:** Dahlgren, VA, United States - **Experience:** Expert - **Salary:** $150,000.0 - $190,000.0 - **Contract:** Permanent contract - **Skills:** Testing (Software), Agile Methodology, Software Applications, JIRA, Bash Shell, Bugzilla, C++ (Programming Language), Computer Engineering, Software Debugging, Eclipse (Software), Perl (Programming Language), Interoperability, Python (Programming Language), MATLAB, Mercurial, Microsoft Visual Studio, NetBeans, Object-Oriented Software Development, OpenMP, Posix, Scrum Methodology, Signal Processing, Simulink, Software Engineering, Software Systems, Subversion, Systems Integration, Multithreading, Scripting, Gpu Programming, Git, Infrastructure Automation Frameworks, Information Technology, Performance Monitor, Software Version Control - **Published:** August 29, 2026 - **Apply:** https://www.clearancejobs.com/jobs/9123752/senior-software-engineer ## About the Role * Must have or be able to obtain a DoD security clearance at the required level. Must be able to maintain the required clearance. Eligibility for cleared access in this instance requires US citizenship. * Minimum Education: Bachelor of Science Degree in Computer Science, Computer Engineering or similar Engineering discipline * 10+ years of experience * Demonstrated ability to assume leadership roles on project tasks * Demonstrated ability to mentor junior level engineers * Experience in modeling and simulations architecture and development * Experience with all phases of software QA including unit, acceptance, regression and cross-platform testing * Experience with C++ using the C11 standard * Experience with Object Oriented Architecture and Design * Development experience with IDEs (VisualStudio, NetBeans, Eclipse), debuggers and performance tools * Knowledge or experience in multi-threading (POSIX, OpenMP, MPI), SSE or GPU programming * Experience with version-control software (Git, Subversion, Mercurial) and configuration management tools (Jira, Bugzilla) * Experience working within an Agile development team, * Familiarity with MATLAB scripting and Simulink * Experience with scripting languages (Perl, Python, BASH) * Familiarity with NGTS, AFSIM, ITASE * Familiarity with DIS, HLA, TENA interoperability standards ## Description SEG, an Astrion company, is seeking a Senior Software Engineer to add to our excellent Modeling and Simulation Development team in Columbia, MD. SEG is an industry leader in the development and implementation of advanced simulation software solutions for our customer, the United States NAVY and Missile Defense Agency, which include high fidelity radar simulation systems, Air and missile defense threat engineering, analysis and Combat, and radar and missile systems engineering and analysis. SEG has developed and implemented a large number of solutions, which are crucial and critical to the warfighter with the mission of improving essential, and time-sensitive decision-making capabilities while protecting and defending our country. Some of the many solutions SEG has developed include: * Navy ballistic and cruise missile systems analysis * Naval surface and airborne radar systems, R&D and analysis * Advances signal processing, tracking and waveform generation * Software solution design engineering and development The right candidate should be able to quickly grasp architectures and develop new ones while learning and utilizing the latest technologies. The candidate must be a proven team leader who can guide and mentor the team throughout the entire software development process, from design and implementation to testing, documentation and delivery., * Assist in the design, development, test, and verification of SEG's missile trajectory and RF signature prediction simulations; * The position covers the whole of the software development process, from design and implementation to testing, documentation and delivery; * Lead team(s) on individual projects and provide assistance to junior level engineers; * Provide C++ software development and maintenance with software integration testing; * Participate in Agile style development ceremonies such as Daily Standups, Sprint Planning and Sprint Reviews * Quickly adapt to new technologies and skill as required ## Related Videos - [Using WebAssembly to run, extend, and secure your application](https://www.wearedevelopers.com/videos/652-using-webassembly-to-run-extend-and-secure-your-application) - [Improving quality with Agentic AI with Rovo Dev and Xray](https://www.wearedevelopers.com/videos/2005-improving-quality-with-agentic-ai-with-rovo-dev-and-xray) - [How a Small Team Shrank a Microsoft Monorepo by 94%](https://www.wearedevelopers.com/videos/1236-how-a-small-team-shrank-a-microsoft-monorepo-by-94) - [Crew Management System for Airlines: Plan duties for pilots & flight attendants worldwide](https://www.wearedevelopers.com/videos/1444-crew-management-system-for-airlines-plan-duties-for-pilots-flight-attendants-worldwide) - [On developing smartphones on wheels](https://www.wearedevelopers.com/videos/258-on-developing-smartphones-on-wheels) - [Collaboration Quantified: Lessons from Open Source Developer Networks](https://www.wearedevelopers.com/videos/1422-collaboration-quantified-lessons-from-open-source-developer-networks) ## Related Articles - [How We Built a Worry-Free System That Runs for 10+ Years – And What We’d Do Again](https://www.wearedevelopers.com/magazine/751-how-we-built-a-worry-free-system-that-runs-for-10-years-and-what-we-d-do-again) - [Highest Paying Tech Companies for Developers](https://www.wearedevelopers.com/magazine/220-highest-paying-tech-companies-for-developers) - [The 12 Best Jobs for Software Engineers](https://www.wearedevelopers.com/magazine/401-the-12-best-jobs-for-software-engineers) - [Software Developer Salary in Austria [2023]](https://www.wearedevelopers.com/magazine/213-software-developer-salary-in-austria-2023) - [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated) - [Is Software Engineering Hard?](https://www.wearedevelopers.com/magazine/448-is-software-engineering-hard)