Principal Software Engineer - Embedded Platform Software (Onsite)

Prattwhitney; Cedar Rapids (IA); On-site; USD 108,000 - 205,000; Full time

Benefits offered by this job

Medical, dental & vision

Vacation & PTO

401(k) with match

Job summary

Collins Aerospace, an RTX company, seeks a Principal Software Engineer in Cedar Rapids to drive software development for defense platforms. You will design, implement, and test solutions across RF, PNT, and EW domains with cross-functional teams in a fast-paced environment.

Leverage OO design, multithreading, and DevOps practices while delivering high-assurance software. Travel up to 15% and contribute to mission-critical programs for global customers.

Qualifications

• Experience with C++/Java in Linux and embedded software development.
• Embedded HW/SW integration experience.
• Familiarity with SDRs/MFRF, EW, PNT systems.
• 5+ years of relevant experience or 3+ with advanced degree.
• Experience with Agile/SCRUM, DevOps and test automation.
• Strong OO design and multithreading skills.

Responsibilities

• Develop and test software for defense systems and platforms.
• Design, code, test, integrate, and document software components.
• Collaborate with cross-functional teams across engineering and PM.
• Support DevOps practices and software environment improvements.
• Ensure configurations meet cost, schedule and manufacturability targets.
• Travel up to 15% as needed.

Skills

C++

Java

Linux

Multithreading

Embedded software

Python

OO design

Agile/SCRUM

DevOps

AI/ML concepts

Education

Bachelor's degree in STEM

Advanced degree in related field

Tools

Git

JIRA

Linux tooling

Job description

Date Posted: 2026-08-21 Country: United States of America Location: US-IA-CEDAR RAPIDS-137 ~ 855 35Th St NE ~ BLDG 137 Position Role Type: Onsite U.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 clearance Security Clearance Type: DoD Clearance: Secret Security Clearance Status: Active and existing security clearance required after day 1

At RTX, the world’s largest aerospace and defense company, 185,000 great minds are united by purpose and inspired to make a difference solving the world’s most complex problems. With our three market leading businesses, world-class operations and investments in research and development, we offer capabilities and opportunity no one else can. Together, we push the boundaries of known science and find new ways to connect and protect our world.

Collins Aerospace is a leader in technologically advanced, intelligent solutions that help redefine the aerospace and defense industry. With a comprehensive portfolio and deep technical expertise, we help customers meet the demands of the global market. Join us and help shape the future of aerospace and defense.

Collins Aerospace, an RTX company, is a leader in technologically advanced and intelligent solutions for the global aerospace and defense industry. Collins Aerospace has the capabilities, comprehensive portfolio, and expertise to solve customers’ toughest challenges and to meet the demands of a rapidly evolving global market.

Collins Aerospace Resilient Connectivity Products (RCP) Engineering seeks a Principal Software Engineer to join the Platform Services Software Team who’s ready to make an impact.

Our team solves defense customers’ toughest problems through rapidly developing, integrating, and demonstrating software solutions that employ cutting‑edge signal processing and networking innovations. We pride ourselves on creativity, facing challenging and complex problems head on, and pushing the limits of the possible – all to provide the Warfighter with the most responsive and disruptive capabilities that navigate the intersection of communications; position, navigation & timing (PNT); cyber space; and other radio frequency (RF) systems.

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 trusted systems or breaking ground on new innovations, your contributions will directly support mission‑critical operations across the globe. Join Collins Aerospace and help us connect the battlespace of tomorrow!

What You Will Do

• Participate in the requirements, design, development and testing of software to include development of new work products or enhancement of existing applications and systems
• Design, code, test, integrate, and document software solutions
• Participate in internal review of software components and systems
• Collaborate with project managers and other professionals within Engineering
• Follow established development practices and processes to maintain the configuration management of software products
• Participate in the advancement of the software development environment and DevOps practices within Engineering
• Design and develop innovative solutions for communication, navigation, radar and electronic warfare applications
• Derive requirements for new concepts and systems from overall project goals
• Develop, champion and pursue new approaches and solutions
• Collaborate closely across multi-disciplinary teams to rapidly identify and implement innovative, effective solutions
• Create and deliver technical presentations that articulate design approaches and their relevance to project objectives
• Support assigned tasks with accountability for technical execution, cost, schedule, and design-to-cost/manufacturability targets
• Ability to travel up to 15%

Qualifications

• Experience developing in modern programming languages (e.g. C++, Java) in a Linux environment
• Experience with rapid prototyping and development of software solutions
• Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM) and 8 years of prior relevant experience
• OR an Advanced Degree in a related field and minimum 5 years of experience
• Experience with embedded software development and software/hardware integration
• Experience with software defined radios (SDRs) or multi-function radio frequency (MFRF) systems
• Experience with Electronic Warfare (EW) and Position, Navigation & Timing (PNT) systems
• Experience with Object Oriented Design/Development and multithreading
• Experience with Agile/SCRUM, DevOps, and test automation practices
• Experience with using configuration management and defect tracking tools (Git, JIRA, etc.)
• Experience in software development, testing, and deployment in languages such as Python and C/C++
• Experience with software defined radios (SDRs) or multi-function radio frequency (MFRF) systems
• Experience with Electronic Warfare (EW) and Position, Navigation & Timing (PNT) systems
• Familiar with Artificial Intelligence & Machine Learning techniques
• Active and transferable U.S. government issued Secret security clearance preferred

What We Offer:

• Medical, dental, and vision insurance
• Three weeks of vacation for newly hired employees
• Generous 401(k) plan that includes employer matching funds and separate employer retirement contribution, including a Lifetime Income Strategy option
• Tuition reimbursement program
• Student Loan Repayment Program
• Life insurance and disability coverage
• Optional coverages you can buy pet insurance, home and auto insurance, additional life and accident insurance, critical illness insurance, group legal, ID theft 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
• And more!

The salary range for this role is 107,500 USD - 204,500 USD.

RTX anticipates the application window closing approximately 40 days from the date the notice was posted. However, factors such as candidate flow and business necessity may require RTX to shorten or extend the application window.

This role is a U.S.-based role. If the successful candidate resides in a U.S. territory, the appropriate pay structure and benefits will apply. RTX anticipates the application window closing approximately 40 days from the date the notice was posted. However, factors such as candidate flow and business necessity may require RTX to shorten or extend the application window.

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 or 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.

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RTX is an aerospace and defense company that provides advanced systems and services for commercial, military and government customers worldwide. It comprises three industry-leading businesses – Collins Aerospace, Pratt & Whitney, and Raytheon. Its 195,000 employees enable the company to operate at the edge of known science as they imagine and deliver solutions that push the boundaries in quantum physics, electric propulsion, directed energy, hypersonics, avionics and cybersecurity. The company, formed in 2020 through the combination of Raytheon Company and the United Technologies Corporation aerospace businesses, is headquartered in Arlington, Virginia.