Embedded Real-Time Software Engineer

About the Role

At RTX, we solve some of the toughest challenges in aerospace and defense to help create a safer, more secure world. Our Embedded Software Engineering team develops mission-critical real-time systems supporting advanced technologies across radar, missile systems, avionics, and more.

We are seeking Embedded Real-Time Software Engineers (All Levels) in beautiful Tucson AZ to support the full software development lifecycle—from concept and design through integration, testing, and deployment—on complex embedded platforms.

What You’ll Do

• Design, develop, test, and maintain real-time embedded software and firmware
• Implement software in C/C++ for embedded systems
• Support integration across hardware, firmware, and system-level components
• Participate in requirements analysis, architecture, design reviews, and code reviews
• Debug and optimize performance on embedded platforms (RTOS, bare-metal, or Linux)
• Collaborate cross-functionally with systems, electrical, and test engineers
• Contribute to verification, validation, and system integration activities

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• Follow established software development lifecycle (SDLC) and configuration management processes

Basic Qualifications

• Bachelor’s degree in Computer Science, Computer Engineering, Electrical Engineering, or related STEM field
• Minimum 2 years of professional experience in embedded software development
• Experience must be full-time professional experience (internships and coursework do not count)
• Experience with C/C++ development for embedded systems
• Familiarity with real-time systems, RTOS, embedded Linux, or bare-metal environments
• U.S. Citizenship is required (role requires ability to obtain and maintain a U.S. security clearance)

Preferred Qualifications

• Experience with embedded processors, SoCs, or microcontrollers (e.g., ARM)
• Knowledge of signal processing, networking, or control systems
• Experience with hardware/software integration and lab testing equipment
• Familiarity with tools such as Git, Jira, Jenkins, or similar
• Exposure to FPGA, DSP, or high-speed interfaces (PCIe, Ethernet, etc.)
• Experience working in Agile or DevSecOps environments

Leveling (All Levels Considered)

Candidates will be considered across multiple levels based on experience, including:

• Early Career / Engineer I–II: Foundational skills, contributes to defined tasks
• Mid-Level Engineers: Owns components, contributes to design decisions
• Senior / Principal Engineers: Leads technical efforts, drives architecture and system-level solutions

Why RTX?

• Work on cutting-edge defense and aerospace systems
• Opportunities for career growth, mentorship, and technical leadership
• Competitive compensation and comprehensive benefits
• Mission-driven work with real-world impact
• If you want, I can tailor this further for recruiter outreach, short LinkedIn post, or resume alignment.
• Relocation assistance is available to hired candidates