Senior Principal Software Engineer (Hybrid)

Date Posted : 2026-02-10

Country :

United States of America

Location :

US-IL-ROCKFORD-P6 ~ 4747 Harrison Ave ~ 4747 HARRISON AVE-P6

Position Role Type : Hybrid

U.S. Citizen, U.S. Person, or Immigration Status Requirements :

U.S. citizenship is required, as only U.S. citizens are authorized to access information under this program / contract.

Security Clearance Type :

None / Not Required

Security Clearance Status :

Not Required

Collins Aerospace has an exciting opportunity for a Senior Principal Software Engineer. We’re looking for a passionate professional who is ready to take on a high level of responsibility in a fast-paced, dynamic environment.

The Senior Principal Systems Engineer within the Electric Power Systems Power Distribution product group contributes across all phases of the product development life cycle, including software requirements, architecture and design, integration and test, and verification and certification support—within an interdisciplinary process that ensures customer needs are met at every stage.

We are seeking an individual capable of working collaboratively with both local and remote team members to develop embedded flight software and produce the associated life-cycle and certification evidence. The candidate will define, maintain, document, implement, and test software requirements for secondary power distribution products. They must also be able to work effectively on a cross-functional support team and communicate clearly in various internal and external review boards.

What You Will Do

Work in a team environment, including collaboration with remote team members, engaging in full life-cycle development (planning, requirements, design, verification, certification / qualification) of electric power distribution and conversion systems. Development is typically performed in C and certified to aerospace standards (DO-178B / C, Design Assurance Levels A–C).

Lead, measure, and analyze software designs for equipment and products to ensure current and future business needs are met.

Build and implement procedures used to support hardware and software product development activities.

Operate equipment and computer systems for testing and software design to facilitate operations and ensure established objectives are achieved.

Design, develop, document, test, and debug control and diagnostic systems that incorporate logical and mathematical solutions.

Lead and conduct multidisciplinary research and collaborate with equipment designers in the planning, design, development, and utilization of electronic data processing systems for product and commercial software.

Collaborate with software discipline chiefs and technical teams to adhere to and implement DO-178B / C processes.

Lead and participate in the Stage of Involvement (SOI) audit reviews with certification authorities.

Perform timing, memory, and stack-usage analysis.

Determine end-user needs by analyzing system capabilities and resolving issues related to program intent, output requirements, and input data acquisition.

Participate in Software Engineering Process Group (SEPG) meetings to improve and adapt standard work and departmental practices.

Ensure software standards are met.

Design and implement build procedures that support hardware and software product development and use.

Develop software configuration standards for company-wide use, 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.

Qualifications We Prefer

Strong presentation and communication skills, with experience delivering information to leadership and cross-functional teams.

Proven ability to lead or contribute to complex technical projects, including coordination across multiple stakeholders.

Experience with data analysis and reporting tools, such as Visio, Excel, or similar platforms.

Demonstrated ability to work independently and manage priorities in a fast-paced or dynamic environment.

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 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!

We make modern flight possible for millions of travelers and our military every second. Our major product lines are on-board virtually every aircraft flying. Be it keeping passengers safe with our emergency power generation systems or creating a positive in flight experience through reliable cabin pressure controls and quieter engines, Power & Controls focuses on delivering a best-in-class experience to our customers. We hire the top people in the industry. Their ideas drive our performance, and their integrity keeps our customers happy. Join us as we take flight!

Hybrid : Employees who are working in Hybrid roles will work regularly both onsite and offsite. Ratio of time working onsite will be determined in partnership with your leader.

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.

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.