Senior Principal Software Engineer - Avionics Simulation (Onsite)

globalhr; Cedar Rapids (IA); On-site; USD 132,000 - 252,000; Full time

Benefits offered by this job

Medical insurance

Dental/vision insurance

Vacation days

401(k) plan

Job summary

RTX / Collins Aerospace is seeking an experienced engineer to design, develop, and test applications simulating avionics sensors for Collins Avionics products. The role requires strong C/C++ and Python skills, plus Agile experience.

You will work with a team of engineers, support budgets and schedules, and travel up to 10%. This is an on-site position at Cedar Rapids, IA, USA.

Qualifications

• Requires STEM degree and 10+ years of relevant experience or an advanced degree with 7+ years of experience.
• Experience with C/C++ programming languages.
• Experience with Python scripting.
• Experience with Agile Development Framework (Scrum, Sprints, etc.).

Responsibilities

• Design, develop, and test applications to simulate avionics sensors behavior.
• Assist debugging to identify root causes and propose solutions.
• Interact with teammates, management, and customers effectively.
• Support program leads with budget and schedule data for CSE work.
• Collaborate with engineers to shape the avionics simulation platform.
• Travel 5-10% as needed.

Skills

C/C++ programming

Python scripting

Agile/Scrum

Education

STEM degree + 10 years

Advanced degree + 7 years

Tools

GUI design experience

C# programming

Job description

Date Posted: 2026-07-01

Country: United States of America

Location: US-IA-CEDAR RAPIDS-182 ~ 1100 Cimmie Ave Ne ~ BLDG 182

Position Role Type: Onsite

U.S. Citizen, U.S. Person, or Immigration Status Requirements: This job requires a U.S. Person. A U.S. Person is a lawful permanent resident as defined in 8 U.S.C. 1101(a)(20) or who is a protected individual as defined by 8 U.S.C. 1324b(a)(3). U.S. citizens, U.S. nationals, U.S. permanent residents, or individuals granted refugee or asylee status in the U.S. are considered U.S. persons. For a complete definition of U.S. Person go here: https://www.ecfr.gov/current/title-22/chapter-I/subchapter-M/part-120/subpart-C/section-120.62

Security Clearance Type: None/Not Required

Security Clearance Status: Not Required

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.

What You Will Do:

• Design, develop, and test applications to simulate the behavior of avionics sensors to support the development and testing of Collins Avionics products.
• Aid the development team in the debugging of laboratory issues to determine root cause and propose potential solutions to the discovered problems.
• Effectively interacts and networks with teammates, management, and customers.
• Support the Program Lead(s) with budget and schedule data for the CSE work on a given program to help ensure the successful completion of a Collins Avionics program.
• Work with a team of dedicated engineers to help shape the future of the avionics simulation platform.
• 5-10% travel as needed.

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.
• Experience with C/C++ programming languages.
• Experience with Python scripting.
• Experience with Agile Development Framework (Scrum, Sprints, etc.).

Qualifications We Prefer:

• Strong written and oral communication skills.
• Experience with Graphical User Interface (GUI) design/implementation.
• Experience with C# programming language.
• Familiarity with migrating an application between OS and HW architectures.
• Earned Value Management experience.

What We Offer:

Benefits:

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 illnessinsurance, 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!

This role may be eligible for relocation.

As part of our commitment to maintaining a secure hiring process, candidates may be asked to attendselect 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.