Principal Real-time Software Engineer

Date Posted: 2026-07-02 Country: United States of America Location: US-CO-AURORA-S79 ~ 16510 E Hughes Dr ~ BLDG S79 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 At RTX, the world's 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. The Software organization develops software applications, including integration and test on missiles, launchers, radars, naval systems, fire control and other complex systems.  Our precision software and firmware integrate operating systems, device drivers, networking, and control software to bring together sensor, guidance, and flight control processing features to complete the mission.  The Software org is made up of several Centers located across the country, responsible for all aspects of the software development lifecycle.  Our 4000+ software engineers design, develop, and build innovative solutions for our customers.  Join our fast-paced agile teams on the leading edge of technology.   As part of the Software Engineering Directorate’s (SWE) Effectors Center (EC) team, you will be an integral part of helping Raytheon further our vision to be the global leader in core and next-generation weapon and security solutions.  By any measure, Raytheon is an exciting and rewarding place to work.  We pride ourselves on developing mission-driven, world-class talent. The result is a workforce that takes pride in the company and consistently delivers superior solutions.  Our Principal Embedded Real-Time Software Developer/Integrator 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 Aurora, CO.  What You Will Do  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.   What You Will Learn   Working 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 8 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 . 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 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.  Experience leading engineering teams in delivering systems (of various size) involving the integration of hardware and software.  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 Learn More & Apply Now! 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