Sr. Avionics Software Engineer

Long Wall Company was created in 2025 to accelerate missile defense technology for the U.S. and our allies. Building on the RS1 and GS0 launch systems, Long Wall develops containerized, mass-producible missile defense systems and offers rapid, low-cost flight testing. We believe that the future of global security and stability require defensive technology that is lower cost, higher performing, better tested, and more broadly distributed than is possible today. Join us.

What we look for

Mission-Driven Problem Solvers. The aerospace frontier demands ingenuity. We want engineers who approach challenges with curiosity, embrace failure as a learning opportunity, and stay focused on delivering the best solution for the mission.

Total Ownership. We seek engineers who take full responsibility for delivering flight-ready work while recognizing that no one succeeds alone. The best engineers make their teammates better, knowing that complementary skills create force multiplication and drive mission success.

Avionics Software Engineer

As an avionics software engineer, you will have the unique opportunity to work cross-functionally with engineers from GNC, propulsion, avionics, and test teams to develop software to maintain and improve our hardware-in-the-loop (HITL) testbed in a highly dynamic environment in a modular and scalable fashion. You will develop software frameworks leveraged by the company at large to test and verify our vehicle design and implementation.

• Collaborate across domains to develop and maintain the hardware-in-the-loop (HITL) testbed simulation capabilities of our vehicles
• Design modular software frameworks that are leveraged across various critical avionics instrumentation and testbed designs
• Develop and maintain data analysis tooling for sub-system verification of vehicle hardware and software
• Partner with domain REs to define and develop HITL test cases to verify vehicle sub-systems
• Continuously expand existing HITL architecture and software framework by developing and integrating new software tools and modules

• B.S. degree or higher in electrical engineering, computer engineering, computer science, or related subject area AND 8 years of relevant experience; or Masters degree AND 6 years of relevant experience; or PhD AND 3 years of relevant experience
• Relevant experience: software/firmware environment, along with experience and proficiency with programming and scripting languages (C++, C, C#, Python, Lua, etc.)

• Experience introducing and integrating new hardware nodes into existing networks
• 5+ proven years of relevant experience in a startup environment
• Excellent written, verbal, and interpersonal communication skills
• Preference for and ability to thrive as a member of a small agile team in a dynamic environment
• Proven history of integrating new software and hardware systems
• Familiarity with Unix-like operating systems
• Demonstrated electrical engineering, digital and analog circuit fundamentals, and lab skills (ability to read schematics, understand datasheets, debug PCBs)
• Experience with test automation and automated data analysis
• Experience creating software documentation and system diagrams
• General understanding of instrumentation, interfaces, and common communication protocols including DMMs, DAQ, electronic loads, power supplies, oscilloscopes, GPIO, Serial-422, UDP, GigE, I2C, SPI

• Ability to sit or stand for extended periods of time
• Ability to use a computer to complete assignments
• Ability to communicate with individuals and groups in person, by phone and telepresence
• While performing the duties of this job, the employee will typically work in an office environment

ITAR Requirement

This position requires access to information protected under US export control laws, including the International Traffic in Arms Regulations and/or the Export Administration Regulations.  As such, US person status (including US citizens, U.S. permanent residents, individuals granted U.S. asylum status, or individuals admitted in U.S. refugee status) is a required qualification for this position.

Equal Opportunity Employer

We are an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, protected veteran status, disability, genetics, or citizenship status (when otherwise legally authorized to work and access export-controlled data) and will not be discriminated against on the basis of such characteristics or any other status protected by the laws or regulations in the locations where we operate. We encourage applicants of all ages.