Linux Simulation Application Developer (Hybrid)

Date Posted:
2026-03-25
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:
Security Clearance Type:
None/Not Required
Security Clearance Status:
Not Required

The Systems Engineering organization within Electric Power Systems is seeking a highly motivated Linux Simulation Application Developer to join our Behavioral Simulation team. In this role, you will support the EXpert Electric Power System simulator, a critical tool used across all phases of product development-from early requirements analysis through final validation and verification.

This is an exciting opportunity to work on complex simulation software, contribute to cutting-edge power systems technology, and collaborate with a highly skilled engineering team.

What You Will Do

• Integrate embedded product code into the simulator architecture
• Support integration of the simulator within hardware-in-the-loop (HIL) environments
• Maintain and enhance simulation tools, including drawing editors and scripting extensions
• Investigate and resolve performance issues within the simulator
• Troubleshoot and remediate functional issues (e.g., crashes, build failures, incorrect outputs)
• Collaborate with the team to develop estimates and support project planning
• Support qualification of simulator components for formal product verification
• Create and maintain technical documentation
• Provide support to users and evaluate ad hoc requests for potential improvements

Qualifications You Must Have

• Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM) and minimum 5 years prior relevant experience or an Advanced Degree in a related field and minimum 3 years of experience
• Experience developing applications on UNIX/Linux operating systems (Windows experience is also acceptable)
• Proficiency in C programming and debugging, with some knowledge of C++
• Experience in software application design, maintenance, and support for complex systems

Qualifications We Prefer

• 4+ years of computer programming experience
• Familiarity with embedded flight software build processes and tools such as make
• Knowledge of Linux POSIX mechanisms, including IPC and threading
• Experience using symbolic debugging tools (e.g., gdb, ddd, dbx)
• Experience with scripting languages such as Python, and Linux shell
• Aerospace experience, particularly with aircraft systems architecture
• Experience in GUI development, Linux system administration, computational numerical methods, TCP/IP networking

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

And more!

Learn More & Apply Now!

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!

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

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.

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 86,800 USD - 165,200 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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