Sr Principal Software Engineer - Embedded Communications (Onsite)
RTXAbout the role
Date Posted:
2026-04-28Country:
United States of AmericaLocation:
US-IA-CEDAR RAPIDS-137 ~ 855 35Th St NE ~ BLDG 137Position Role Type:
OnsiteU.S. Citizen, U.S. Person, or Immigration Status Requirements:
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 clearanceSecurity Clearance Type:
DoD Clearance: SecretSecurity Clearance Status:
Active and existing security clearance required after day 1At Collins Aerospace, we don’t just build technology—we engineer mission success. Our Communication Systems teams are on the front lines of innovation, designing and delivering cutting-edge embedded communication solutions that keep military forces around the world safe, connected, and informed—no matter the environment.
We’re looking for a Senior Principal Software Engineer who’s ready to make an impact. In this role, you won’t just write code—you’ll help shape the future of secure communications. From software-defined radios and advanced networking to state-of-the-art cryptographic systems and open system platform software, your work will drive critical real-time communications that enable pilots and soldiers to securely share voice, video, and data when it matters most.
Here, you’ll collaborate with top-tier engineers and industry experts, leveraging advanced technologies to push the boundaries of what’s possible. Whether you're building on trusted systems or breaking ground on new innovations, your contributions will directly support mission-critical operations across the globe.
If you're passionate about solving complex challenges, excited by the idea of working on systems that truly matter, and driven to grow alongside some of the brightest minds in the field—we want you on our team.
What You Will Do
YOU will architect, design, and develop cutting-edge embedded software and communication products in C/C++ and Rust
YOU will drive project success by planning and leading efforts for requirements, implementation, test development, and certification
YOU will develop innovative tools and automated testing infrastructures that support Continuous Integration and Continuous Development processes
YOU will serve as a technical lead, mentoring and guiding software developers to ensure successful execution and professional growth
YOU will lead large initiatives and organize tasks for team members, ensuring timely delivery
YOU will impact our business and our customers: supporting cost, schedule, and technical performance
What You Will Learn
YOU will gain technical leadership experience and mentorship opportunities to develop talent for yourself and others
YOU will collaborate with fellow subject matter experts and industry specialists, obtaining hands-on experience with new and innovative technologies
YOU will engage with a multidisciplinary team to develop a cross-functional skillset
YOU will grow into a subject matter expert on your projects and programs
Qualifications You Must Have:
Typically requires a University Degree in Science, Technology, Engineering, or Mathematics (STEM) and minimum 10 years prior relevant experience or an Advanced Degree in a related field and minimum 7 years of experience
Experience in leading efforts across the full software development lifecycle
Experience with software for communications or similar products
7 years of experience with embedded software development
7 years of experience in Python and C/C++
Qualifications We Prefer:
Active U.S. Department of Defense Clearance
Proficient with Linux development environments
Proficient with Git and other version control systems
Knowledgeable in networking and communications protocols
Experience with Rust programming language
Experience with multithreading and containerization
Experience with communications systems or software-defined radios
Experience developing open systems architecture and microservices for containerized environments
Experience applying patterns, data structures, and algorithms to solve problems in software systems
Comfortable working in Agile/Scrum environments
Ability to investigate complex problems to root cause and champion the creation and implementation of solutions
Ability to architect, design, and imple
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