> Markdown version of [/jobs/ext/3566141-senior-software-engineer-training-system-software-onsite](https://www.wearedevelopers.com/jobs/ext/3566141-senior-software-engineer-training-system-software-onsite). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior Software Engineer - Training System Software (Onsite) - **Company:** RTX - **Location:** Sterling, VA, United States (Remote available) - **Experience:** Expert - **Salary:** $95,500.0 - $181,700.0 - **Contract:** Permanent contract - **Skills:** Testing (Software), Java (Programming Language), Microsoft Windows, Agile Methodology, Software Applications, Systems Engineering, Confluence, JIRA, C Sharp (Programming Language), C++ (Programming Language), IBM Rational ClearCase, Databases, Software Debugging, Linux, Eclipse (Software), Microsoft Visual Studio, Windows Presentation Foundation, Object-Oriented Software Development, Subversion, System Software, Multithreading, Git, Software Version Control, Devsecops, Atlassian Bamboo - **Published:** October 3, 2026 - **Apply:** https://dejobs.org/x/x/DAFFA02A6E4C4E23A32194620F30ED1B/job/ ## About the Role In this role, you will become a technical focal for the design, implementation, and testing of complex multi-platform training device software and their associated user interfaces. This position requires a highly motivated self-starter who can learn quickly and can tackle complex problems and lead limited development activities. Candidates with agile development experience and the desire to grow into agile leadership roles are strongly encouraged to apply! This position requires the ability to obtain a US security clearance. Most aspects of the job are done in a classified lab environment and requires a daily onsite presence., * Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM) and minimum 5 years prior relevant experience or an Advanced Degree in a related field and minimum 3 years of experience * Active and transferable U.S. government issued security clearance is required prior to start date. Skill Qualifications: * Previous experience working with multi-threaded C# or JAVA software applications. * Experience interfacing with databases. * Experience with object-oriented programming concepts. Qualifications We Prefer : * Prior experience with Windows Presentation Formats (WPF) highly desired. * Excellent written and oral communication skills * Familiarity with Linux and Windows development environments * Candidate exhibits leader-like qualities and has a willingness to share their knowledge and build up their peers * Experience using Visual Studio and Eclipse * Familiarity with DevSecOps and Agile development methodologies * Strong OOP and C++ language skills including STL, Templates * Usage of source code control tools (SVN, GIT, ClearCase, etc.) * Usage of ALM tools (JIRA, Confluence, Crucible, Bamboo) * Active DoD Security Clearance (within 24 months) ## Description * Design, develop, integrate, and test software on cross-functional agile teams to deliver solutions within budget, scope, and schedule constraints * Perform bidding and proposal activities to support the acquisition of new business * Make and influence decisions which impact cost, schedule, and technical performance at a team level * Develop high-quality software which is verifiable, maintainable, and readable * Perform multi-threaded software debugging * Work independently with limited supervision * Provide engineering estimates * Contribute to software and systems engineering requirements capture and analysis * Travel to domestic and international customer sites to support training events and product installations ## Related Videos - [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) - [GitOps for the people](https://www.wearedevelopers.com/videos/461-gitops-for-the-people) - [Docker network without Docker](https://www.wearedevelopers.com/videos/1418-docker-network-without-docker) - [Navigating the Corporate Jungle: Life as a Developer in a large Company](https://www.wearedevelopers.com/videos/621-navigating-the-corporate-jungle-life-as-a-developer-in-a-large-company) - [Git for Code Reviews](https://www.wearedevelopers.com/videos/429-git-for-code-reviews) - [Security Pitfalls for Software Engineers](https://www.wearedevelopers.com/videos/726-security-pitfalls-for-software-engineers) ## Related Articles - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs) - [Résumé-Driven Development: How IT trends affect the job market for software developers](https://www.wearedevelopers.com/magazine/59-resume-driven-development-how-it-trends-affect-the-job-market-for-software-developers) - [Dev Digest 121 - AI goes offline](https://www.wearedevelopers.com/magazine/456-dev-digest-121-ai-goes-offline) - [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) - [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated) - [Where to Find Entry-Level Software Engineering Jobs](https://www.wearedevelopers.com/magazine/397-where-to-find-entry-level-software-engineering-jobs)