Senior Embedded Software Engineer
RTX
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Job summary
RTX in Tucson, AZ is seeking a Senior Embedded Software Engineer to architect, design, implement, test, debug, and deploy software for FPGA firmware and hardware solutions in autonomous avionics systems. You will work with Product Owners and IPT members in an Agile environment to ensure reliable operation of embedded software.
The role requires 5+ years in related fields, experience with RTOS, and a current Secret-level security clearance or ability to obtain one.
Qualifications
- Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM) and a minimum of 5 years of prior relevant experience.
- Experience including at least two of the following: Embedded C++ Software, Embedded Software Security, Software Architecture Design and Implementation.
- Experience using embedded Real Time Operating Systems (RTOS) (e.g., Green Hills, Integrity, Wind River VxWorks, Linux, etc.)
- Experience developing complex systems involving the integration of hardware, firmware, and software.
- Active and transferrable final Secret U.S. government issued security clearance is required prior to start date with the ability to obtain program access after start.
Responsibilities
- Architecting, designing, implementing, testing, and debugging integrated embedded real-time software within heterogenous systems composed of firmware and hardware.
- Working within a cross-discipline team to define, refine, and improve product concept, implementation, testability, and guaranteed, measurable quality.
- Teaching, coaching, and mentoring less experienced staff.
- Contributing to proposals as well as preliminary and critical design reviews.
- Ability to obtain program access.
Skills
Education
Tools
Job description
Date Posted: 2026-10-22
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: Secret - Current
Security Clearance Status: Active and existing security clearance required on day 1
We're growing fast and we want you to grow with us! We're expanding our engineering organization dramatically to meet exciting customer demand, and we're actively looking for engineers who bring strong foundational skills and a passion for solving hard problems. Industry experience in defense? Not required - we'll invest in you. If you meet the minimum qualifications, we want to talk. Apply today and take the next step in your engineering career.
At RTX, the world largest aerospace and defense company, 185,000 great minds are united by purpose and inspired to make a difference solving the world’s most complex problems. With our three market leading businesses, world‑class operations and investments in research and development, we offer capabilities and opportunity no one else can. Together, we push the boundaries of known science and find new ways to connect and protect our world. Raytheon brings 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. We deliver solutions that help our nation and allies defend freedoms and deter aggression, creating a safer, more secure world. Join us and help shape the future of aerospace and defense.
Our Senior Embedded Software Engineer is a technical position that works in an Integrated Product Team (IPT) environment to architect, design, implement, test, debug, and deploy Software for Firmware (FPGA) and Hardware solutions that meet current and next generation autonomous avionics systems’ needs. Working with a cross-discipline team, the candidate must have experience developing, testing, and integrating software for edge or embedded devices and/or subsystems (like telecom, medical, IoT, automotive, or robotics) where hardware operation, time critical function, functional reliability, mission assurance, and safety might be major concerns.
The successful candidate will work with Product Owners, Chief Engineers, Management and other IPT members using Lean and/or Agile practices to ensure that embedded software is designed and developed to reliably operate toward the intended functions.
This position is within the Effectors Center of the Software organization, and is an onsite role located in Tucson, AZ.
- Architecting, designing, implementing, testing, and debugging integrated embedded real-time software within heterogenous systems composed of firmware and hardware.
- Working within a cross-discipline team to define, refine, and improve product concept, implementation, testability, and guaranteed, measurable quality.
- Teaching, coaching, and mentoring less experienced staff.
- Contributing to proposals as well as preliminary and critical design reviews.
- Ability to obtain program access.
- Working across a product line in collaboration with other teams.
- Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM) and a minimum of 5 years of prior relevant experience.
- Experience including at least two of the following: Embedded C++ Software, Embedded Software Security, Software Architecture Design and Implementation.
- Experience using embedded Real Time Operating Systems (RTOS) (e.g., Green Hills, Integrity, Wind River VxWorks, Linux, etc.)
- Experience developing complex systems involving the integration of hardware, firmware, and software.
- Active and transferrable final Secret U.S. government issued security clearance is required prior to start date with the ability to obtain program access after start.
- Familiarity with reading electrical schematics and relating it to software function
- Familiarity with reading firmware source like VHDL or Verilog
- Familiarity with assembly language in at least one processor/controller family
- Experience using lab instruments like power-supplies, digital multi-meters, oscilloscopes, and logic analyzers
- Experience with developing device drivers for bare-metal and/or OS applications
- 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
Location Information: This position is onsite at our campus in beautiful Tucson, AZ. Tucson has a friendly, caring, and laid-back atmosphere, combined with the innovation and energy of a metropolitan region, and recognized as one of America’s 10 Best Small Cities. Surrounded by beautiful mountains, colorful Sonoran Desert landscape and majestic saguaro cacti, Tucson is blessed with some of nature’s best work. Tucson is known for its bright blue skies, and with more than 310 sunny days per year, Tucson’s fantastic weather lets residents enjoy the outdoors year-round.
- Raytheon In Tucson: https://careers.rtx.com/global/en/raytheon-tucson,-az-location
- Tucson is Awesome: https://www.youtube.com/watch?v=i65wOwKcNIQ
- Winter in Tucson: https://www.youtube.com/watch?v=yZdKKkF0QkE
#TucsonSoftware
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.
The salary range for this role is 95,500 USD - 181,700 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.
- 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
- holidays
- Annual short-term and/or long-term incentive compensation programs
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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