UAS Engineer II

Summary

Mettle Ops / Celestus is seeking a UAS Engineer II to support the development of autonomous multirotor and fixed-wing aircraft for defense applications. This role contributes to flight software development, vehicle integration, and flight test execution across multiple platforms.

The ideal candidate brings hands-on experience with ArduPilot/PX4, multirotor and fixed-wing UAS development, and autonomous systems, with the ability to support platforms from concept through flight testing. This is a hands-on engineering role working closely with senior engineers while contributing meaningfully to program execution.

Key Responsibilities

Flight Software & Autonomy

• Develop, configure, and tune ArduPilot/PX4 flight control systems for multirotor and fixed-wing platforms

• Implement custom flight modes, autonomous behaviors, and mission profiles

• Integrate sensor systems (GPS, IMU, barometer, optical) with flight controllers

• Develop and validate terminal guidance approaches for intercept applications

Platform Development & Integration

• Support airframe integration including avionics, propulsion, and payload systems

• Contribute to the full development lifecycle from prototype through production-representative units

• Coordinate COTS component selection, integration, and testing

• Develop and maintain Interface Control Documents (ICDs) and supporting technical data packages

Flight Test & Validation

• Plan and execute flight test programs, including required safety documentation

• Conduct hardware-in-the-loop (HITL) simulation and ground testing

• Analyze flight data to diagnose issues and optimize performance

• Support test infrastructure and procedures for ongoing development

Technical Contribution

• Support senior engineers with technical trade studies and decision-making

• Assist program management with schedule inputs and risk identification

• Interface with external partners and customers on technical requirements

• Contribute to proposals, white papers, and formal technical documentation