> Markdown version of [/jobs/ext/4628143-principal-embedded-software-engineer](https://www.wearedevelopers.com/jobs/ext/4628143-principal-embedded-software-engineer). 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 Embedded Software Engineer - **Company:** RTX - **Location:** Boston, MA, United States - **Experience:** Expert - **Salary:** $107,500.0 - $204,500.0 - **Contract:** Contract - **Skills:** Bash Shell, C Shell, Unix, Linux, Embedded Software, Shell Script, Software Engineering, Systems Integration, VxWorks, Git, Software Version Control - **Published:** November 7, 2026 - **Apply:** https://www.juju.com/job/7_DAFA77319859235D33F3DB08F591F701 ## About the Role relevant experience.Embedded C/C++ and/or Ada software development experience.Experience developing on VxWorks and Linux/Unix platforms.The ability to obtain and maintain an Interim Secret U.S. government issued security clearance is required prior to start date. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance.Qualifications We Prefer:Experience with version control systems such as Git or ClearCase.Experience in shell scripting (e.g., Bash or C Shell).Experience working with VME bus-based systems.Radar domain experience.Active / Existing Secret U.S. Security Clearance.What We Offer:Our values drive our actions, behaviors, and performance with a vision for a safer, more connected world. At RTX we value: Safety, Trust, Respect, Accountability, Collaboration, and Innovation.This position offers relocation assistance based on candidate eligibility.Learn More & Apply Now!Please consider the following role type definition as ## Description Architecture (REPA) Department as a Principal Embedded Software Engineer. The department's primary goal is to design, develop, and support land and sea-based radar systems. We are looking for a unique engineer to enhance the sustainability of our current radar products. The ideal candidate will have experience in legacy radar hardware and software technologies, with an interest and ability to transition these products to current technologies while maintaining and troubleshooting and patching our deployed systems.What You Will Do:Support sustainment of legacy radar systems, to involve troubleshooting, maintenance, and patching.Port legacy Unix and VxWorks software to modern Linux systems or identify replacements.Support software integration, testing, and verification.This 1st shift role will be 100% onsite and based in Marlborough, MA.Qualifications You Must Have:Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM) and a minimum of 8 years of prior