Senior Flight Software Engineer

Hermeus
Los Angeles, CA

Hermeus is an aerospace and defense technology company founded to radically accelerate air travel by delivering hypersonic aircraft. The company aims to develop hypersonic aircraft quickly and cost-effectively by integrating hardware-rich, iterative development with modern computing and autonomy. This approach has been validated through design, build, and test of the company’s first combined turbojet-ramjet engine and is now being scaled through its first flight vehicle program, Quarterhorse. Hermeus is also developing Darkhorse — an uncrewed hypersonic aircraft designed to deliver unique asymmetric capabilities to the warfighter.

We are seeking a highly motivated and experienced Senior Flight Software Engineer to join Hermeus, a hypersonic aircraft startup company. As a Senior Flight Software Engineer, you will work closely with our hardware and systems engineers to design, develop, and implement software for our cutting-edge aircraft systems.

We are open to considering Software Engineer II or Principal Engineer candidates for this role.

Responsibilities:

  • Develop and maintain embedded flight software for our aircraft systems, including flight control, navigation, communication, and avionics systems. 
  • Collaborate with hardware engineers to ensure seamless integration of software and hardware components. 
  • Write efficient, high-quality, and well-documented code that meets the performance and safety requirements of the aircraft. 
  • Develop software requirements and design documents. 
  • Participate in code and design reviews to ensure high-quality software. 
  • Test and debug software to ensure it meets design specifications and performance requirements. 
  • Work with systems engineers to develop and execute system-level tests and simulations. 
  • Participate in the development of safety-critical software and documentation to ensure compliance with regulatory standards. 
  • Stay up-to-date with emerging trends and technologies in the embedded flight software field and apply them to our aircraft systems. 
  • Develop and maintain technical documentation.

Minimum Requirements:

  • Bachelor's or Master's degree in Computer Engineering, or a related field.
  • 5+ years of experience in embedded flight software development.
  • Professional experience programming in C/C++ and experience with embedded flight software development tools and methodologies.

Preferred Skills and Experience:

  • Experience with real-time operating systems (RTOS) or embedded Linux for real-time applications.
  • Familiarity with low-level hardware interfaces (e.g., CAN, RS422, MIL-STD-1553, ARINC429, etc.), and software development for embedded applications.
  • Experience with fault-redundant design as well as safety-critical software development processes, such as DO-178C or MIL-516C.
  • Knowledge of avionics systems, flight control systems, and navigation systems.
  • Strong problem-solving skills and attention to detail.
  • Excellent communication skills and ability to work collaboratively in a team environment.
  • Experience working in a startup environment is a plus.

$159,750 - $195,250 a year

The salary information provided is a general guideline only. Hermeus takes various factors into account, including, but not limited to, the position's scope and responsibilities, the candidate's professional background, education and training, essential skills, and market and business considerations, when presenting a job offer.

Salary is only one part of our total compensation and benefits package. Hermeus offers competitive salary and equity, unlimited PTO policy, paid parental leave, potential for year-end bonuses, and more!

100% employer-paid health care

401k & Retirement Plans

Unlimited PTO

Weekly Paid Office Lunches

End of Year Bonuses

Fully stocked breakrooms

Stock Options

Paid Parental Leave

U.S. EXPORT CONTROL COMPLIANCE STATUS

The person hired will have access to information and items subject to U.S. export controls, and therefore, must either be a “U.S. person” as defined by 22 C.F.R. § 120.62or otherwise eligible for deemed export licensing. US persons include U.S. citizens, U.S. nationals, lawful permanent residents (green card holders), and asylees and refugees with such status granted, not pending.

EQUAL OPPORTUNITY

Hermeus is an Equal Opportunity Employer. Employment decisions at Hermeus are based solely on merit, competence, and qualifications, without regard to race, color, religion, gender, national origin/ethnicity, veteran status, disability status, age, sexual orientation, gender identity, marital status, mental or physical disability, or any other legally protected status.

Posted 2025-11-01

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