Sr Principal Software Engineer - Embedded Communications; Onsite

Position Overview

Senior Principal Software Engineer – Onsite, requires U.S. citizenship and a currently active DoD Secret clearance. The role is based in Cedar Rapids, Iowa.

• Architect, design, and develop cutting‑edge embedded software and communication products in C/C++ and Rust.
• Plan and lead efforts for requirements, implementation, test development, and certification to drive project success.
• Develop innovative tools and automated testing infrastructures that support Continuous Integration and Continuous Development processes.
• Serve as a technical lead, mentoring and guiding software developers to ensure successful execution and professional growth.
• Lead large initiatives and organize tasks for team members, ensuring timely delivery.
• Impact the business and customers by supporting cost, schedule, and technical performance.

• Gain technical leadership experience and mentorship opportunities to develop talent for yourself and others.
• Collaborate with subject matter experts and industry specialists, obtaining hands‑on experience with new and innovative technologies.
• Engage with a multidisciplinary team to develop a cross‑functional skill set.
• Grow into a subject‑matter expert on projects and programs.

• University degree in Science, Technology, Engineering, or Mathematics (STEM) with a minimum of 10 years of relevant experience, or an advanced degree with a minimum of 7 years of experience.
• Experience leading efforts across the full software development lifecycle.
• Experience with software for communications or similar products.
• Minimum 7 years embedded software development experience.
• Minimum 7 years experience in Python and C/C++.
• Valid U.S. Department of Defense security clearance (Secret).

• 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.
• 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 implement solutions to complex problems without guidance.

Salary Range: 132,400 USD – 251,600 USD.

• Medical, dental, and vision insurance.
• Three weeks of vacation for newly hired employees.
• Generous 401(k) plan with employer matching funds and a separate employer retirement contribution, including a Lifetime Income Strategy option.
• Tuition reimbursement program.
• Student loan repayment program.
• Life insurance and disability coverage.
• Optional coverages: pet insurance, home and auto insurance, additional life and accident insurance, critical illness insurance, group legal,  protection.
• Birth, adoption, parental leave benefits.
• Ovia Health, fertility, and family planning.
• Adoption assistance.
• Autism benefit.
• Employee assistance plan, including up to 10 free counseling sessions.
• Healthy You incentives, wellness rewards program.
• Doctor on Demand, virtual doctor visits.
• Bright Horizons, child and elder care services.
• Teladoc Medical Experts, second opinion program.

Eligible for relocation. The role is a U.S.

-based position; relocation assistance will be provided as per company policy.

RTX is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability, veteran status, or any other applicable state or federal protected class. RTX provides affirmative action in employment for qualified individuals with a disability and protected veterans in compliance with Section 503 of the Rehabilitation Act and the Vietnam Era Veterans’ Readjustment Assistance Act.