Software Test Engineer II

Prattwhitney; Tucson (AZ); On-site; USD 69,000 - 131,000; Full time

Benefits offered by this job

Annual short-term incentive

Annual long-term incentive

Benefits package

Job summary

RTX's Test Solutions Engineering team in Tucson is seeking a software engineer to design, code, and integrate OO software and test tools for mission-critical defense systems. You will develop applications interfacing with state-of-the-art hardware across the lifecycle, from lab demos to production testing, collaborating with multiple engineering disciplines.

You will work within Agile and Waterfall lifecycles, participate in design reviews, and apply strong problem-solving skills to ensure test

Qualifications

• Advanced STEM degree required by start date.
• Experience developing, testing, or integrating software in multiple languages.
• Experience for Windows apps using Visual Studio IDE.

Responsibilities

• Design, code, and integrate OO software and test apps for Windows.
• Derive system requirements, specs and architecture.
• Troubleshoot and optimize for test accuracy and reliability.
• Collaborate with systems/electrical/mechanical engineers to integrate tooling.
• Participate in design reviews and code peer reviews.
• Apply Agile and Waterfall lifecycles in development.

Skills

C/C++

Python

C#

VB.NET

Windows

Education

Advanced STEM degree

Tools

Visual Studio IDE

Git

Job description

Date Posted: 2026-10-06

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

• Advanced 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.

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: Safety, Trust, Respect, Accountability, Collaboration, and Innovation.

Salary range for this role is 68,900 USD - 131,100 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 incentive compensation programs.
• Hired applicants may be eligible for annual long-term incentive compensation programs.

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.

Equal Opportunity and Diversity

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.

DCSA Consolidated Adjudication Services (DCSA CAS), an agency of the Department of Defense, handles and adjudicates the security clearance process. More information about Security Clearances can be found on the US Department of State government website here: https://www.state.gov/m/ds/clearances/c10978.htm

RTX is an aerospace and defense company that provides advanced systems and services for commercial, military and government customers worldwide. It comprises three industry-leading businesses - Collins Aerospace, Pratt & Whitney, and Raytheon. Its 195,000 employees enable the company to operate at the edge of known science as they imagine and deliver solutions that push the boundaries in quantum physics, electric propulsion, directed energy, hypersonics, avionics and cybersecurity. The company, formed in 2020 through the combination of Raytheon Company and the United Technologies Corporation aerospace businesses, is headquartered in Arlington, Virginia.