HWIL Software Engineer II

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

Benefits offered by this job

Relocation Offered Based OnEligibility

Job summary

RTX in Tucson, AZ is seeking a software engineer to develop and integrate real-time flight simulator software for HWIL facilities. Candidates must hold a DoD Secret clearance and have strong C++ OO skills, plus experience with embedded systems and RTOS environments.

The role is onsite at the Tucson facility, collaborating with multi-disciplinary teams to meet mission-critical requirements and deliver robust hardware-in-the-loop solutions.

Qualifications

• Bachelor’s degree in Computer Science, Engineering or STEM field.
• 2+ years of relevant software engineering experience.
• Proficiency with C++ in OO style and modern development practices.
• Active DoD Secret clearance or ability to obtain one prior to start.
• Experience with embedded systems and/or real-time software development.

Responsibilities

• Collaborate in a multi-disciplinary team to develop software to control HWIL facilities.
• Determines end user needs by analyzing system capabilities and ensures standards are met.
• Designs and implements build procedures supporting hardware and software development.
• Software design, coding and integration in a real-time environment.
• May train software developers and contribute to software quality processes.

Skills

C++ OO

Embedded Software

Embedded OS

Software Architecture

Education

Bachelor's degree in STEM

Tools

MATLAB

Oscilloscopes

Logic Analyzers

Network Analyzers

Job description

Date Posted:

2026-09-01

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:

Active and existing security clearance required on day 1

At Raytheon, the foundation of everything we do is rooted in our values and a higher calling – to help our nation and allies defend freedoms and deter aggression. We bring the strength of more than 100 years of experience and renowned engineering expertise to meet the needs of today’s mission and stay ahead of tomorrow’s threat. Our team solves tough, meaningful problems that create a safer, more secure world.

The Hardware in the Loop (HWIL) Department in Tucson, AZ is a multi-discipline organization responsible for designing, building and integrating state of the art testing environments (flight simulators for missiles), as the last step before flight test. On our team, you will work with weapon system designers to understand requirements, design solutions, integrate, and deploy the systems to help support tactical software development, testing, and delivery for missiles to the warfighter.

This position is within the Effectors Center of the HWIL organization, and is an onsite role located in Tucson, AZ

What You Will Do

• Collaborate in a multi-disciplinary team to develop software to control Hardware-In-the-Loop (HWIL) facilities (flight simulators for missiles).

• Determines end user needs by analyzing system capabilities to resolve problems on program intent, output requirements and input data acquisition. Ensures hardware and software standards are met.

• Designs and implements build procedures that are used to support hardware and software product development and use.

• Software design, coding and integration in a real-time environment.

• May train software developers in the use of configuration management tools and the implementation of software quality standards. Includes control modeling (model based design)

Qualifications You Must Have

• Typically requires a Bachelor’s degree in Computer Science, Engineering or other STEM related field and a minimum of 2 years of relevant experience.

• Experience with software development in C++, using the object-oriented features.

• Experience including at least two of the following: Embedded Software, Embedded Software Security, Embedded Operating Systems (Linux, RTOS, VxWorks, etc), Software Architecture Design and Implementation.

• Active and transferable Secret U.S. government issued security clearance is required prior to start date with the ability to obtain program access after start.

Qualifications We Prefer

• Strong organization, coordination, planning, teaming skills, as well as written and oral communication skills.

• Experience generating technical documentation and reports.

• Experience with RF theory and application in systems.

• Experience with electronics design and/or conducting data analysis using tools such as Matlab.

• Experience troubleshooting systems using test equipment such as oscilloscopes, logic analyzers, network analyzers, and/or spectrum analyzers.

• Knowledge of networking and IP addressed based equipment.

• Able to work and interface with a cross-discipline team.

• Experience with both Windows and Linux operating systems.

• Agile and Scrum team member experience

• Knowledge of or experience with software languages such as Java, C, C++, or similar languages; scripting languages such as Python and/or Perl, and MATLAB scripts for data analysis purposes.

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.

• Relocation Offered Based On Eligibility

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.

The 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 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.