PX4 / ArduPilot Flight Test Engineer (Drone OS – BVLOS & DAA)

We are building a production-grade Drone OS for certified Beyond Visual Line of Sight (BVLOS) and Detect-and-Avoid (DAA) operations. We need an experienced flight test engineer who is deeply familiar with PX4 or ArduPilot to help us bring the system to certification-ready maturity. Responsibilities: Plan, execute, and document flight tests for autonomy, sensor fusion, fail-safes, and DAA behaviors Tune and validate PX4 or ArduPilot parameters for stable and reliable performance Work closely with our AI full-stack developer and perception engineer to integrate and verify software changes on real hardware Analyze logs (ulog, dataflash, etc.), identify issues, and recommend fixes Support development of test procedures that will later feed into FAA/ASTM certification efforts Help establish safe flight-test protocols and checklists Requirements: Strong hands-on experience with PX4 or ArduPilot (preferably both) Proven flight test experience with multirotors, VTOLs, or fixed-wing aircraft Comfortable with QGroundControl, Mission Planner, MAVLink, and log analysis tools Understanding of basic autonomy, GPS-denied operation, and fail-safe logic Ability to work independently and communicate clearly with a remote software team U.S.-based preferred (due to potential dual-use / export considerations) Nice to have: Experience supporting BVLOS waivers or ASTM F38 / DO-365 related testing Familiarity with Jetson companion computers or ROS 2 Previous work on commercial or dual-use UAS Engagement: Part-time to full-time, ongoing. Start with a paid trial (test planning + log review) then expand. Please include: Examples of previous flight test work or log analysis Which autopilot stack you are strongest in (PX4 / ArduPilot) Your general availability and hourly rate