Senior Principal Software Engineer - APNT (Onsite)

Date Posted:

2026-04-13

Country:

United States of America

Location:

US-IA-CEDAR RAPIDS-166 ~ 855 35Th St NE ~ BLDG 166

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

Senior Principal Software Engineer - APNT (Onsite) 

At RTX, the world 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 is looking for a Sr. Principal Software Engineer with a passion for engineering and the desire to provide leadership to the Assured Positioning, Navigation and Timing (APNT) Solutions software team. The team is responsible for architecting, designing, and developing software for real-time embedded navigation and timing solutions for military ground, airborne, and maritime applications.

This position offers abundant opportunity to acquire in-depth knowledge of Assured PNT systems architecture, and to apply that knowledge in a team effort to develop our navigation products for the warfighter.

Collins Aerospace continues to build on a strong history of providing navigation equipment to meet the evolving needs of commercial and military users. Our navigation solutions provide enhanced situational awareness and pinpoint accuracy for airborne and surface missions worldwide allowing users of our equipment to complete their mission and return home safe. 
 
What You Will Do:

• You will contribute to and lead the software development execution in collaboration with subject matter experts 
• You will lead a software team culture emphasizing growth in technical and process 
• You will lead a software team through a modernization effort in Continuous Integration / Continuous Deployment (CI/CD) 
• You may provide project execution management including detail planning, cost account management, status and analysis, while also participating in software/system design and implementation activities 
• You will adapt to dynamic environments and foster collaborative relationships through strong interpersonal and communication skills 
• You will lead and manage the engineering bid and planning process for a software engineering team 
• You will participate in and facilitate Agile team ceremonies, Agile sprint reviews, user story refinement and end of sprint product demos and retrospective reviews 
• You will provide communication and status to relevant stakeholders 
• You may lead disciplined and systematic root cause analyses 
• You will help drive resolution for technical issues through problem-solving and coordination across impacted teams, which may include 
• You will have the opportunity to improve our approaches through sharing lessons learned with the team and department 

What You Will Learn:

• You will be able to gain highly visible leadership experience and exposure within the Assured Positioning, Navigation, and Timing (APNT), Resilient Navigation Solutions, and Mission Systems 
• You can take flight to becoming knowledgeable in the most advanced navigation equipment 
• You will gain exposure to multiple key technologies with opportunities to deepen your subject matter expertise in related areas 
• You will have opportunities to influence and enrich the department culture as we continuously look to improve 

Qualifications You Must Have:

• Typically requires a 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
• Must have or be capable of obtaining a US Department of Defense (DoD) security clearance.  Candidate selected will be subject to a government security investigation/reinstatement and must meet eligibility requirements 

Skills We Value:    

• Prior experience in GPS and/or Antenna Electronics development  
• Assured Positioning, Navigation, and Timing (APNT) 
• Bidding, planning, and managing project budget, schedule, and scope 
• Knowledge of Scaled Agile Framework and DevSecOps 
• Software development experience with C, C++, and Python 
• Familiarity with CI/CD tools such as Docker, Artifactory, GitLab pipelines, and more

Do you want to be a part of something bigger? A team whose impact stretches across the world, and even beyond? At Collins Aerospace, our Mission Systems team helps civilian, military and government customers complete their most complex missions — whatever and wherever they may be. Our customers depend on us for intelligent and secure communications, missionized systems for specialized aircraft and spacecraft and collaborative space solutions. By joining our team, you’ll have your own critical part to play in ensuring our customer succeeds today while anticipating their needs for tomorrow. Are you up for the challenge? Join our mission today.

What We Offer:

Some of our competitive benefits package includes:   

• 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  
• Eligible for relocation assistance
• And more!  

Learn More & Apply Now!

*Please ensure the role type (defined below) is appropriate for your needs before applying to this role. 

Onsite: Employees who are working in Onsite roles will work primarily onsite. This includes all production and maintenance employees, as they are essential to the development of our products. 

At Collins, the paths we pave together lead to limitless possibility. And the bonds we form – with our customers and with each other -- propel us all higher, again and again.   

  

Apply now and be part of the team that’s redefining aerospace, every day.   

As part of our commitment to maintaining a secure hiring process, candidates may be asked to attend select steps of the interview process in-person at one of our office locations, regardless of whether the role is designated as on-site, hybrid or remote.

The salary range for this role is 132,400 USD - 251,600 USD. The salary range provided is a good faith estimate representative of all experience levels. RTX considers several factors when extending an offer, including but not limited to, the role, function and associated responsibilities, a candidate’s work experience, location, education/training, and key skills.

Hired applicants may be eligible for benefits, including but not limited to, medical, dental, vision, life insurance, short-term disability, long-term disability, 401(k) match, flexible spending accounts, flexible work schedules, employee assistance program, Employee Scholar Program, parental leave, paid time off, and holidays. Specific benefits are dependent upon the specific business unit as well as whether or not the position is covered by a collective-bargaining agreement.

Hired applicants may be eligible for annual short-term and/or long-term incentive compensation programs depending on the level of the position and whether or not it is covered by a collective-bargaining agreement. Payments under these annual programs are not guaranteed and are dependent upon a variety of factors including, but not limited to, individual performance, business unit performance, and/or the company’s performance.

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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