You will work on new aircraft development in a lean, high-ownership culture where you directly shape the product and operate at a velocity to fly new designs within months, not years.

In this role, you will design, develop, and integrate a high-performance hybrid-electric propulsion system into the Omen air vehicle. You will own and design powertrain components from concept through production, optimizing for the unique demands of a tail-sitter platform including VTOL operations, efficient cruise flight, and rapid transition between flight modes.

As a Principal Powertrain Engineer, you will work closely with program leadership and cross-functional teammates to deliver a high-performance, reliable propulsion solution. You will drive component selection, manage supplier relationships, lead testing and validation efforts, and ensure the powertrain meets performance, weight, thermal, and reliability requirements.

This is a hands-on role where you will tackle hard technical problems, mentor junior engineers, and play a critical role in bringing a groundbreaking aircraft platform to operational reality. You will be a trusted subject matter expert in the design and development of our powertrain.

Join our dynamic team and help us build the next generation of autonomous flight systems.

Key Responsibilities:

• Own the design of hybrid-electric propulsion systems including motors, generators, battery packs, fuel systems, power electronics, and propeller/rotor integration

• Electric machine sizing and design, transmission sizing and design, inverter sizing and design, and how the full system integrates into the air vehicle.

• Conduct powertrain performance analysis, thermal modeling, and energy optimization studies to meet mission requirements for endurance, payload capacity, and operational envelope

• Lead the development and execution of test plans for powertrain subsystems and full-up systems, including ground test stands, HILs, and flight test

• Define and validate technical performance measures including power, efficiency, thermal limits, and fault tolerance across all operating modes

• Create detailed technical specifications and interface control documents for powertrain components and assemblies

• Collaborate with the Airframe and Vehicle Controls teams for solutions on system packaging, structural/thermal interfaces, and thrust/power control architectures

• Conduct design reviews, perform requirements analysis, and plan system verification to ensure compliance with project goals and industry standards

• Establish and manage supplier relationships for critical powertrain components, including technical requirements definition, design reviews, and qualification oversight

Required Qualifications:

• High-ownership and a bias toward action – if you see a problem, you want to fix it

• Bachelor's degree in Aerospace Engineering, Mechanical Engineer, Robotics, Physics, or related technical discipline

• Minimum of 12+ professional years in technical leadership roles such as a Principal Engineer, Chief Engineer, or similarly relevant position focused on propulsion systems

• Experience in engineering team leadership and project execution for aerospace, automotive, or defense sectors with focus on electric or hybrid propulsion

• Proficiency in powertrain engineering skillsets including electric motors, transmissions, generators, power electronics, battery systems, and thermal management

• Hands-on experience with propulsion system development, testing, and integration for aerospace platforms

Preferred Qualifications:

• Direct experience developing hybrid-electric or electric propulsion systems for aircraft, rotorcraft, eVTOL, or UAS platforms

• Proven track record leading propulsion systems through full qualification campaigns from early development through flight test and production

• Experience with propulsion system modeling and simulation tools

• Familiarity with aviation environmental and EMI standards (MIL-STD-810, MIL-STD-461, DO-160, or equivalent) and qualification campaigns for flight hardware

• Experience with Formula SAE, Baja SAE, Design Build Fly, or similar competitive engineering programs demonstrating hands-on vehicle integration experience

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You'll work at the intersection of all major components of the XBat systems, providing user-facing applications to operate XBat and will be collaborating closely with our Aircraft Software, Hivemind, and Flight Test teams to design this state of the art ground system.

Responsibilities:

• Design, develop, and maintain software systems for the XBat Platform
• Build robust ground control stations, mission planning tools, and communication interfaces
• Collaborate with Aircraft Software, Hivemind, and Flight Test teams to design the ground system
• Provide user-facing applications to operate XBat

Requirements:

• Bachelor's degree in Computer Science, Software Engineering, Robotics, or a related field with 5+ years of professional software development experience, or Masters with 4+ years, or PhD with 2+ years
• Strong proficiency in one or more languages: C++, Python, or JavaScript/TypeScript
• Experience building distributed systems or networked applications
• Previous experience designing and developing ground control station (GCS) software for critical mission applications
• Experience developing user interfaces (e.g., Qt, React, or similar frameworks)
• Strong debugging and system integration skills
• Ability to work in a fast-paced, cross-functional engineering environment
• Ability to obtain security clearance

Preferred Qualifications:

• Experience with UAS platforms
• Experience with AI/ML systems
• Exposure to cybersecurity best practices for embedded or distributed systems

$110,000 - $200,000 a year

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This role is part of the Hivemind Solutions organization and leads a team of engineers to deliver cutting-edge autonomous capabilities for business-to-business and defense contracts. The ideal candidate has defense industry experience as a Chief Engineer and a proven track record of leading technical teams to develop and deploy autonomous systems.

Responsibilities:

• Serve as the Chief Engineer on Shield AI projects focused on developing and deploying autonomy solutions for unmanned aircraft from group 2 to group 5.
• Lead a team responsible for advancing Hivemind Autonomy and shaping defense autonomy architectures.
• Define and assign technical objectives, make key engineering decisions, and ensure the quality and completeness of all technical deliverables.
• Provide technical leadership and oversight across both Internal Research and Development (IRAD) initiatives and defense contracts.

Qualifications:

• BS/MS in Computer Science, Electrical Engineering, Mechanical/Aerospace Engineering, and/or similar degree.
• 10+ years of industry experience in autonomy and/or UAS platforms (e.g., defense tech, self-driving car, etc.).
• 7+ years of delivering software into production/certifiable environments with high-reliability.
• Understanding of guidance, control and navigation (GNC) (e.g. controls, estimation, planning).
• Understanding of robotics stack (e.g., controls, estimation, perception, planning, etc.).
• Understanding of software development processes and how to effectively deploy software.
• Experience defining technical scope and managing technical requirements, product architectures, ICDs and other system level design documentation.
• Demonstrate problem solving skills by applying a scientific technical approach.
• Customer-facing engineering leader supporting both defense and internally funded development programs.
• Contribute to government contract proposal writing.
• Excellent communication skills, both written and verbal.
• Excellent leadership skills, driving a team of 6-20 engineers.

Preferred Qualifications:

• UK security clearance.

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This role is part of the Hivemind Solutions organization and leads a team of engineers to deliver cutting-edge autonomous capabilities for business-to-business and defense contracts. The ideal candidate has defense industry experience as a Chief Engineer and a proven track record of leading technical teams to develop and deploy autonomous systems.

Key responsibilities include serving as the Chief Engineer on Shield AI projects focused on developing and deploying autonomy solutions for unmanned aircraft, leading a team responsible for advancing Hivemind Autonomy and shaping Department of Defense (DoD) autonomy architectures, defining and assigning technical objectives, making key engineering decisions, and ensuring the quality and completeness of all technical deliverables.

The Chief Engineer will provide technical leadership and oversight across both Internal Research and Development (IRAD) initiatives and DoD contracts, and contribute to government contract proposal writing. Excellent communication and leadership skills are required, with the ability to drive a team of 6-20 engineers.

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