Freelance Embedded Firmware Engineer Jobs in Arizona

Date Posted:
2026-07-22
Country:
United States of America Location:
US-AZ-TUCSON-M10 ~ 3360 E Hemisphere Loop ~ BLDG M10 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 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 PCAS department is seeking an embedded software/firmware engineer to support development of a range of high-performance actuation systems, such as aerodynamic steering, thrust vectoring, attitude and divert maneuvering, pointing, and stabilization of missile systems & subsystems. The individual will help specify, design, verify, and integrate motor control embedded software for current and future precision control actuation systems. They will implement digital control algorithms in C/C++ in conjunction with the Controls and Algorithms team. What You Will Do * Day-to-day you will be expected to apply sound engineering practices to address technical problems while collaborating with technical teams including electrical engineering, mechanical engineering, control systems engineering, test engineering, systems safety engineering, and others.
* Hands-on opportunity with firmware integration and verification testing in a laboratory environment is plentiful, thus enabling firsthand knowledge of system function and performance.
* The position will rely on fundamental understanding of C/C++, MATLAB/Simulink, and working with electrical and mechanical hardware. What You Will Learn * The PCAS organization provides a strong technical learning environment with a dedicated technology pyramid comprised of engineering fellows.
* PCAS engineers are provided the opportunity for direct access to these subject matter experts, fostering accelerated technical growth through a structured mentoring program. Qualifications You Must Have * Typically requires a degree in Science, Technology, Engineering or Mathematics(STEM) and a minimum of 2 years of prior relevant experience
* Experience with documenting work; extensively commenting code, or test benches and/or test software. Qualifications We Prefer * Fundamentals with C/C++ development on embedded hardware platforms
* Strong verbal and written communication and ability to work hands-on in a team.
* Use of software/firmware configuration management tools such as GIT, Subversion or similar
* Basic proficiency with model development and data analysis in MATLAB/Simulink
* Knowledge of actuation communication busses; electromechanical actuators (using gears, ballscrews, leadscrews etc); position sensors; electronic controllers and power amplifiers; test equipment
* Familiarity with UART, SPI, and I2C protocols
* Ability to read an electrical schematic 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 Eligibility Learn More & Apply Now! * Please consider the following role type definition as you apply for 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. 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 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. 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. Privacy Policy and Terms: Click on this link to read the Policy and Terms