> Markdown version of [/jobs/ext/4649408-principal-software-engineer-with-test-solutions](https://www.wearedevelopers.com/jobs/ext/4649408-principal-software-engineer-with-test-solutions). 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). --- # Principal Software Engineer with Test Solutions - **Company:** RTX - **Location:** Miami, FL, United States - **Experience:** Expert - **Salary:** $107,500 - $204,500 - **Contract:** Contract - **Skills:** Java (Programming Language), Microsoft Windows, Agile Methodology, Applications Architecture, Software Applications, Microsoft Azure, C Sharp (Programming Language), C++ (Programming Language), Software Debugging, DevOps, Github, Integrated Development Environments, Python (Programming Language), Microsoft Visual Studio, Software Architecture, Software Maintenance, Software Configuration Management, Software Engineering, Systems Integration, TCP/IP, UML, Software Troubleshooting, Computer Equipment, Optimization Algorithms, Visual Basic Language, Programming Languages - **Published:** November 9, 2026 - **Apply:** https://www.thejobnetwork.com/job/23d10c77-c171-4d1e-9f17-b31588d81d46/principal-software-engineer-with-test-solutions ## About the Role * Typically requires a Bachelor's Degree in Science, Technology, Engineering, or Mathematics (STEM) and minimum 8 years prior relevant experience, or an Advanced degree in a related field and minimum 5 years experience. \n * Experience in developing and integrating software applications using programming languages including but not limited to C++, C#, Java, Python or Visual Basic. \n * Experience in utilizing integrated development environments and debugging tools to troubleshoot software implementation and ensure integrity of the software products. \n * Prior experience in Windows Operating System and Microsoft Visual Studio is required. \n * The ability to obtain and maintain a U.S. government issued security clearance is required. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance. \n, * Prior experience in laboratory test instrumentation, electronics, and software (Ex. oscilloscopes, power supplies, digital multimeters) \n * Experience with computer architecture and computer hardware optimization techniques \n * Experience of the development of software drivers for the operation of computer hardware interfaces \n * Experience in common computer hardware interface and data protocols such as TCP/IP, UDP, or RS-422 \n * Experience with Unified Modeling Language (UML) to visualize software architecture and design \n * Experience in software development lifecycles, such as Waterfall and Agile \n * Experience with Software Configuration Management principles \n * Experience with Microsoft Azure DevOps Server or GitHub \n * Written and interpersonal communication skills ## Description The Principal Software Engineer with Test Solutions position is focused on the design, development, integration, and maintenance of software as a part of on-site factory support of systems to support weapon system product development. The selected candidate will develop applications, libraries, and instrument drivers using the software style, development language, and integrated development environment specified by the organization., The selected candidate will contribute to multidiscipline engineering teams. Typical work involves the development of both engineering and production equipment, environments, and systems. As such, the candidate will contribute to the completion of all stages of product development for RMD weapon system products. They will be expected to work, either as a part of a team or independently, to design, develop, and implement system level applications in support of producing and maintaining weapon system products.