Jr Software Test Engineer Jobs in Rockford, IL (NOW HIRING)

Date Posted:
2026-06-18
Country:
United States of America
Location:
US-IL-ROCKFORD-P6 ~ 4747 Harrison Ave ~ 4747 HARRISON AVE-P6
Position Role Type:
Onsite
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
We are seeking a Software Engineer to join an agile/scrum development team focused on building and supporting a reusable operating environment for automated product testing and hardware-in-the-loop (HIL) simulation systems.
This role involves developing software that interfaces directly with complex test equipment and hardware systems, enabling automated testing, simulation, and validation of advanced engineering products.
What You Will Do

• Engineer will be part of an agile/scrum development team, creating & supporting a re-usable operating environment for automated product testing and hardware-in-the-loop simulations.

• Develop modular software applications which interface test equipment hardware (including prime mover controllers, loadbanks, power supplies, discrete/analog I/O and comms data networks) and integrate them into a cohesive system.

• Collaborate with electrical engineers on wiring, hardware configuration and test stand requirements.

• Develop leading-edge software tools, supercomputing clusters, and real-time software applications for Automatic Test Equipment using Object Oriented Design, scripting languages (Python, TCL & others), and the C++ programming language.

• Provide on-site and remote support (including debugging, operating system administration, and computer hardware build-up / teardown) to our internal customers in development labs.

• Lead development efforts for large software projects from a technical perspective (design, implementation, and test), as well as from a financial planning perspective.

• Develop for Linux and Windows operating systems.

• Generate and maintain software documentation and change requests.

• Review and update department processes.

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

• Prior experience developing and integrating software that directly interfaces with hardware-based test or measurement systems, hardware-in-the-loop (HIL) systems, or Automatic Test Equipment (ATE) environments) in a lab or production setting

Qualifications We Prefer

• Python, C++, Bash, and TCL scripting experience

• LabVIEW experience

• Strong understanding of electrical engineering concepts

• Object-oriented design and software design patterns

• Configuration management experience

• UX design 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 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.
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 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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