Sr Embedded Software Engineer - C++ I RTOS I Python
Confirmed on the employer's own hiring board on Sep 29, 2026. First seen by Alion on Sep 22, 2026.
As a Sr Advanced Software Engineer, you will be responsible for the design, development, integration, and validation of mission-critical embedded software systems in compliance with aerospace industry standards and safety requirements.
The role requires hands-on expertise in avionics systems, software engineering best practices, and regulatory frameworks to support complex aerospace applications. This role is specifically to become a part of the advanced engineering team that develops the next generation common avionics platform which will support future Honeywell Aerospace cockpit solution.
You will work out of our Phoenix, AZ location on a Hybrid work schedule. NO relocation offered.
Key Responsibilities:
- Design, develop and implement robust, high-quality software solutions for avionics systems using C/C++, ensuring high performance, reliability, and functionality.
- Engineer mission-critical software applications within deterministic Hard Real-Time Operating System (RTOS) environments, ensuring compliance with stringent safety and reliability standards.
- Integrate and test avionics subsystems across diverse aircraft platforms, ensuring interoperability and adherence to aerospace technologies.
- Leverage Python for scripting, automation, and system-level integration tasks.
- Utilize project lifecycle management tools including Jira, Bitbucket, Confluence, and Bamboo for agile development, version control, documentation, and continuous integration/deployment.
- Implement and validate avionics communication protocols such as ARINC 429, ARINC 653, CAN (Controller Area Network), RS-232, and switched network protocols.
- Apply knowledge of aerospace certification standards, including DO-178B/C for software assurance and ARP4754 for system engineering processes, focusing on compliance, traceability, and validation.
- Participate in software development activities, contributing to iterative planning, adaptive execution, and cross-functional collaboration.
- Conduct requirements engineering and traceability using tools like IBM Rational DOORS to ensure structured documentation and regulatory compliance.
- Provide technical mentorship, promote knowledge sharing, and support professional development of team members.
- Stay abreast of technological advancements and integrate new practices into the development process.
YOU MUST HAVE
- Bachelor’s degree from an accredited institution in a technical discipline such as science, technology, engineering, mathematics.
- Minimum 6 years of experience in embedded software development for avionics or safety-critical systems.
- Demonstrated proficiency with C++, and Python.
- Proficient in tools such as Jira, Bitbucket, Bamboo, Confluence, and IBM Rational DOORS.
WE VALUE
- Familiarity with DO-178B/C, ARP4754, and safety-critical software development processes.
- Experience with RTOS environments and avionics communication protocols (ARINC 429/653, CAN, RS-232).
Due to compliance with U.S. export control laws and regulations, candidate must be a U.S. Person, which is defined as, a U.S. citizen, a U.S. permanent resident, or have protected status in the U.S. under asylum or refugee status or have the ability to obtain an export authorization.
BENEFITS
Beyond a performance-driven salary, you'll work alongside dedicated experts on technology that's advancing aviation. As a Honeywell Aerospace employee, you're eligible for a comprehensive benefits package that includes:
- Employer-subsidized medical, dental, vision and life insurance
- Short-term and long-term disability coverage
- 401(k) match, flexible spending accounts and health savings accounts
- Employee assistance program and educational assistance
- Parental leave and 12 paid holidays
- Paid time off for vacation, personal and sick time
Explore your benefits: https://honeywellaerospacebenefits.com/
ABOUT HONEYWELL AEROSPACE
Join a company that's reintroducing itself to the aviation community we've helped advance for more than a century. At Honeywell Aerospace (NASDAQ: HONA), we're launching as an independent, publicly traded aerospace and defense company built on a legacy of operational excellence and mission-focused execution.
Our new brand identity pairs that heritage with real momentum, as we build technology that helps pilots navigate with confidence, aircraft operate more efficiently, and operators stay ahead of change. With our systems on board 90% of the world's aircraft, your work here has reach that's rare to find anywhere else.
Focusing on our customers, investing in innovation, and building a culture of accountability and performance is how we're shaping what comes next.
Every horizon. Every mission. Every day.
ABOUT THE BUSINESS UNIT
Honeywell Aerospace products and services are found on aircraft across commercial aviation, defense and space - from engines and cockpit electronics to cabin systems, mechanical components and connectivity solutions. Our technology helps operators fly more safely, reduce fuel consumption, improve on-time performance and deliver a better experience for the people on board.
As aviation continues to evolve, we're also developing systems to support autonomous and supersonic platforms, bringing the same focus on safety and efficiency to the next era of flight. With approximately 36,000 employees worldwide and net sales of $17.4B in 2025, Honeywell Aerospace is one of the largest dedicated aerospace companies in the world. Explore our businesses: https://www.honeywellaerospace.com
Electronic Solutions develops the avionics, navigation systems, sensors and electromagnetic defense technology that help aircraft perform safely and with precision. Our systems are on board 90% of the world's aircraft - serving commercial aviation, defense and space operators from integrated flight deck platforms with 30-plus years in service to radiation-hardened systems trusted for human spaceflight.
The application period for the job is estimated to be 40 days from the job posting date; however, this may be shortened or extended depending on business needs and the availability of qualified candidates. Posting Date: 8/18/2026