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Hermeus

Flight Software Engineer

Los Angeles, CA
Salary
USD 105,000 - 125,000 / per-year-salary
Level
Junior
Work type
On-site · Los Angeles

Not stated in the posting: visa.

Open. First seen 9 September 2026.

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About the role

Hermeus's standard text

Hermeus is a venture-backed defense aviation company reclaiming the lost art of rapid iterative prototyping to build the fastest aircraft in the world today. By prioritizing relentless hardware iteration, we deliver high-speed systems at the pace of the modern battlefield. We work with the Department of War to provide the high-speed capabilities our nation and its allies need to maintain a durable, asymmetric advantage.

About The Role:

We are seeking a highly motivated and experienced 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.

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.

Requirements:

  • Bachelor's or Master's degree in Computer Engineering, or a related field.
  • 1+ 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.

The salary range listed for this role is intended as a general guideline. Final compensation will be determined based on a variety of factors, including role scope and responsibilities, relevant experience, education and training, key skills, market data, and business needs.

At Hermeus, compensation is only one part of our total rewards package. We offer competitive pay, equity, and a range of benefits designed to support our team.

Benefits:

  • Health & Wellness: 100% employer-paid healthcare and pet insurance
  • Financial: Competitive pay, stock options, 401(k) retirement plan, and potential year-end bonuses
  • Time Off: Paid parental leave, 12 federal holidays, unlimited PTO for exempt employees, and generous accrued PTO for non-exempt employees
  • Office Perks: Weekly paid office lunches and fully stocked breakrooms
Hermeus's standard text

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. § 120.62 or 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.

#LI-JC3

What this role asks for

70% of this description is written for the role. The rest is Hermeus's standard text, folded away below.

Read against Hermeus's other open postings on this site.

The team: Flight Software HIRES STEADILY

This role is one of 7 open in Flight Software. 2 were posted in the last 30 days and the oldest in June: a team that hires all year rather than one being built.

WHAT THE TEAM WORKS WITH, ACROSS ITS POSTINGS

C++ (7 of 7), Linux (6 of 7), C (5 of 7), Embedded Systems (5 of 7), RTOS (4 of 7), CI/CD (2 of 7)

OTHER ROLES ON THIS TEAM

From the team and dates on Hermeus's own job board.

Salary context

13 other open postings titled Flight Software Engineer state a salary: median USD 130,000 to USD 175,000 a year.

See Software Engineer salaries in the United States →

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