# Principal Real-time Software Engineer
## About the Role
Raytheon, part of RTX, is seeking a Principal Real-time Software Engineer to join the Software Engineering Directorate’s Effectors Center in Tucson, Arizona. This technical role focuses on architecting, designing, implementing, testing, debugging, and deploying embedded real-time software for complex autonomous avionics systems involving firmware, FPGA, and hardware.
You will work within an Integrated Product Team (IPT) alongside cross-disciplinary engineers, Product Owners, Chief Engineers, management, and other stakeholders. The ideal candidate has experience developing and integrating embedded software for edge or embedded devices where hardware operation, time-critical functionality, reliability, mission assurance, and safety are important considerations.
## Key Responsibilities
* Architect, design, implement, test, and debug integrated embedded real-time software within heterogeneous systems involving firmware and hardware.
* Develop and integrate embedded software for autonomous avionics and complex hardware/software systems.
* Collaborate with cross-disciplinary teams to define and improve product concepts, implementation approaches, testability, and measurable quality.
* Support software development across the full lifecycle, including design, implementation, integration, testing, debugging, and deployment.
* Apply Lean and/or Agile engineering practices to develop reliable embedded software.
* Work with Product Owners, Chief Engineers, management, and Integrated Product Team members.
* Teach, coach, and mentor less experienced engineering staff.
* Contribute to proposals, preliminary design reviews, and critical design reviews.
* Work across product lines and collaborate with other engineering teams.
* Obtain required program access after joining the role.
## Required Qualifications
* Degree in Science, Technology, Engineering, Mathematics, or a related STEM field.
* Minimum of 8 years of prior relevant professional experience.
* Experience in at least two of the following areas:
* Embedded C++ software development.
* Embedded software security.
* Software architecture design and implementation.
* Experience using embedded real-time operating systems, such as:
* Green Hills.
* Integrity.
* Wind River VxWorks.
* Linux.
* Experience developing complex systems involving hardware, firmware, and software integration.
* Ability to obtain an Interim Secret-level U.S. government security clearance prior to the start date.
* Active and transferable U.S. government-issued security clearance required prior to start.
* Ability to obtain program access after starting.
* U.S. citizenship required because only U.S. citizens are eligible for the required security clearance.
## Preferred Qualifications
* Familiarity with rate monotonic theory, practices, and limitations.
* Familiarity with layered architectural principles and their limitations.
* Ability to read electrical schematics and relate them to software functionality.
* Experience reading firmware source code, such as VHDL or Verilog.
* Familiarity with assembly language in at least one processor or controller family.
* Experience using laboratory instruments, including:
* Power supplies.
* Digital multimeters.
* Oscilloscopes.
* Logic analyzers.
* Experience developing device drivers for bare-metal and/or operating system applications.
* Experience leading engineering teams delivering systems involving hardware and software integration.
## Skills & Competencies
* Embedded C++ software development.
* Embedded real-time software engineering.
* Software architecture and design.
* Real-time operating systems.
* Embedded software security.
* Hardware, firmware, and software integration.
* FPGA and firmware integration.
* Autonomous avionics systems.
* Real-time systems and time-critical functionality.
* Device driver development.
* Software testing, debugging, and deployment.
* Hardware/software troubleshooting.
* System reliability and mission assurance.
* Technical leadership and mentoring.
* Cross-functional collaboration.
* Lean and Agile development practices.
* Preliminary and critical design reviews.
* Electrical schematic and firmware source-code interpretation.
## Education & Experience
* STEM degree or related technical degree required.
* Minimum of 8 years of relevant professional experience required.
* Experience with embedded software, real-time systems, and hardware/software integration required.
* Experience leading engineering teams is preferred.
## Work Arrangement & Schedule
* **Work Arrangement:** Onsite.
* **Location:** Tucson, Arizona, United States.
* **Worksite:** 1151 E Hermans Rd, Building 805, Tucson, AZ.
* The listing header identifies the role as Hybrid, while the detailed job description identifies the position as Onsite. The detailed position requirements state that employees in onsite roles primarily work at the company location.
## Compensation & Benefits
* **Salary:** USD $107,500–$204,500.
* Relocation assistance may be offered based on eligibility.
* Additional benefits and programs are provided in accordance with RTX policies and eligibility requirements.
## Compliance / Additional Information
* Active and transferable U.S. government-issued security clearance is required prior to the start date.
* DoD Secret clearance is required.
* Ability to obtain Interim Secret clearance is required prior to the start date.
* Ability to obtain program access after starting is required.
* U.S. citizenship is required for security clearance eligibility.
* Raytheon and RTX are committed to safety, trust, respect, accountability, collaboration, and innovation.
* Employment and security requirements are subject to applicable company and government policies.
**Apply Now**