Firefly Aerospace
Software Test Engineer III
Cedar Park, TX · Full-time · Posted Oct 20, 2026
- Experience
- 5 to 8+ years of experience with formal software testing.
- Education
- Bachelor’s degree in Computer Science, Engineering, or a related technical field, or equivalent practical experience.
- Visa sponsorship
- Must be a U.S. citizen, lawful permanent resident, protected individual as defined by 8 U.S.C. 1324b(a)(3), or eligible to obtain required authorizations from the U.S. Department of State.
About the job
Leads software testing and verification for Firefly’s flight and ground software, including automated tests in digital and hardware-in-the-loop simulations.
What you'll do
- Design test procedures, frameworks, automation pipelines, and unit-test strategies.
- Lead software verification, review code changes, mentor engineers, and guide testing practices.
- Ensure test requirements are met; document plans, track milestones, and communicate risks.
What they ask for
- Bachelor’s degree in Computer Science, Engineering, or a related technical field, or equivalent practical experience with a strong portfolio.
- 5 to 8+ years of experience with formal software testing.
- Strong C/C++ and Python expertise; extensive Linux development experience.
- Experience with Agile practices, Git, test automation frameworks, and CI/CD pipelines.
Nice to have
- Experience with the NASA Trick Simulation Environment.
- Open-source contributions or technical publications.
Tools
C/C++, Python, Linux, Git, NASA Trick Simulation Environment
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