Software Test Engineer I

Date Posted: 2026-10-01 Country: United States of America Location: US-AZ-TUCSON-805 ~ 1151 E Hermans Rd ~ BLDG 805 Position Role Type: Onsite U.S. Citizen, U.S. Person, or Immigration Status Requirements: Active and transferable U.S. government issued security clearance is required prior to start date. 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: Ability to obtain INTERIM U.S. government issued security clearance is required prior to start date Are you ready to explore the world of aerospace and defense? Do you want to learn from and collaborate with some of the greatest minds in the industry? At RTX, our internships, co-ops and full-time careers provide an exceptional foundation to work on complex problems, advance your skills and create a safer, more connected world. Discover opportunities to make a difference at RTX. What You Will Do Join the Test Solutions Engineering team within the Hardware Discipline Center at Raytheon, where we architect and build sophisticated software applications and automated test environments for mission-critical defense systems. In this role, you will develop cutting-edge software solutions that interface directly with state-of-the-art engineering hardware, supporting products across the entire lifecycle—from early lab demonstrations and design verification to high-rate production testing and long-term sustainment. Working alongside a collaborative, multi-disciplinary engineering team, you will design robust tools that ensure our nation's defense technologies perform flawlessly. Key Responsibilities Design, code, and integrate object-oriented software applications and test software targeting Windows operating platforms. Develop and derive system-level software requirements, operational specifications, and architectural designs. Troubleshoot, debug, and optimize software applications to ensure rigorous test accuracy, repeatability, and reliability. Collaborate closely with systems, electrical, and mechanical engineers to integrate software test tools with specialized hardware instrumentation. Participate actively in formal design reviews, code peer reviews, and technical defect resolution. Work within structured engineering frameworks applying both Agile and Waterfall development lifecycles. Qualifications You Must Have Bachelor’s degree in Science, Technology, Engineering, or Mathematics (STEM) discipline. Degree must be obtained by start date. Experience developing, testing, or integrating software applications using one or more programming languages, such as C, C++, C#, Python, or Visual Basic (VB/VBA/.NET). Experience developing, building, and debugging software applications targeting Windows operating systems using the Microsoft Visual Studio integrated development environment (IDE). Experience may be obtained through on-the-job experience, research, coursework, or projects. Qualifications We Prefer Demonstrated foundation in software development principles and Object-Oriented Design (OOD/OOP), including encapsulation, inheritance, polymorphism, and modular class structure. Experience or coursework utilizing C# or modern C++ in an engineering or laboratory test setting. Familiarity with hardware/software interfacing, test automation frameworks, or instrumentation control (e.g., via GPIB, Ethernet, or serial interfaces). Hands-on exposure to version control tools (such as Git) and Agile software development practices. Strong diagnostic and analytical problem-solving skills applied to complex software/hardware integration issues. What We Offer Our values drive our actions, behaviors, and performance with a vision for a safer, more connected world. At RTX we value: Trust, Respect, Accountability, Collaboration, and Innovation. Relocation Eligibility The salary range for this role is 57,200 USD - 108,800 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. 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. 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. #J-18808-Ljbffr