Senior UAS Engineer

Summary

Mettle Ops / Celestus is seeking an experienced Senior UAS Engineer to lead the development of autonomous multirotor and fixed-wing aircraft for defense applications. This role is responsible for flight software development, vehicle integration, and execution of flight test programs 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 take platforms from concept through flight testing. This is a senior-level technical leadership role with responsibility for mentoring junior engineers and driving 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

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

• Manage 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 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

• Establish test infrastructure and procedures to support ongoing development

Technical Leadership

• Provide technical direction and mentorship to junior engineers

• Support program management with schedule inputs, risk identification, and trade studies

• Interface with external partners and customers on technical requirements

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