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Sr Principal Software Engineer

Job in Tucson, Pima County, Arizona, 85718, USA
Listing for: Raytheon
Full Time position
Listed on 2026-05-19
Job specializations:
  • Engineering
    Embedded Software Engineer, Software Engineer, Systems Engineer
Salary/Wage Range or Industry Benchmark: 80000 - 100000 USD Yearly USD 80000.00 100000.00 YEAR
Job Description & How to Apply Below
Position: Sr Principal Real-time Software Engineer

Date Posted:

Country: United States of America

Location: US-AZ-TUCSON-805 ~ 1151 E Hermans Rd ~ BLDG 805

Position Role Type: Onsite

Security Clearance: U.S. citizenship required to obtain U.S. government issued security clearance (DoD Clearance: Secret). Ability to obtain interim U.S. government issued security clearance required prior to start date.

What You Will Do
  • Architect, design, implement, test, and debug integrated embedded real-time software within heterogeneous systems composed of firmware and hardware.
  • Work within a cross-discipline team to define, refine, and improve product concepts, implementation, testability, and guaranteed, measurable quality.
  • Teach, coach, and mentor less experienced staff.
  • Contribute to proposals as well as preliminary and critical design reviews.
  • Obtain program access (as required).
What You Will Learn
  • Work across a product line in collaboration with other teams.
Qualifications You Must Have
  • Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM) and a minimum of 10 years of prior relevant experience.
  • Experience with at least two of:
    Embedded C++ software, Embedded software security, Software architecture design and implementation.
  • Experience using embedded real-time operating systems (RTOS) such as Green Hills, Integrity, Wind River VxWorks, Linux, etc.
  • Experience developing complex systems involving the integration of hardware, firmware, and software.
  • Ability to obtain interim Secret-level U.S. government issued security clearance required prior to start date and ability to obtain program access after start.
Qualifications We Prefer
  • Familiarity with rate-monotonic theory, practice, and limitations.
  • Familiarity with layered architectural principles and their limitations.
  • Familiarity with reading electrical schematics and relating them to software function.
  • Familiarity with reading firmware source such as VHDL or Verilog.
  • Familiarity with assembly language in at least one processor/controller family.
  • Experience with laboratory instruments like power supplies, digital multimeters, oscilloscopes, and logic analyzers.
  • Experience developing device drivers for bare-metal and/or OS applications.
  • Experience leading engineering teams in delivering systems involving the integration of hardware and software.
What We Offer
  • Values:
    Safety, Trust, Respect, Accountability, Collaboration, and Innovation.
  • Relocation offered based on eligibility.
  • Salary range: USD ,600.
  • Benefits include medical, dental, vision, life insurance, short-term disability, long-term disability, 401(k) match, flexible spending accounts, flexible work schedules, employee assistance program, educational scholarship program, parental leave, paid time off, and holidays.
  • Annual incentive compensation program opportunities may be available.
Location

The position is onsite at our campus in Tucson, AZ.

Security Clearance

This role requires a security clearance. U.S. citizenship is required for eligibility.

Equal Opportunity Statement

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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