Principal Mechanical Engineer

CHAOS Industries is redefining modern defense with a multi-product portfolio that gives the ultimate advantage—domain dominance. The company's products are powered by Coherent Distributed Networks (CDN™), empowering warfighters, commercial air operators, and border protection teams to act faster, adapt rapidly, and stay ahead of evolving threats.  CHAOS Industries was founded in 2022 and has raised a total of $1 billion in funding from leading investors, including 8VC, Accel, and Valor Equity Partners. The company is headquartered in Los Angeles, with offices in Washington, D.C., San Francisco, San Diego, Seattle, and London. For more information, please visit www.chaosinc.com. Role Overview:  CHAOS is seeking a Principal Mechanical Design Engineer to lead the mechanical design, integration, and qualification of electronic hardware and enclosures for aerospace and defense applications. The ideal candidate brings deep hands-on mechanical design expertise, strong CAD and packaging experience, and a proven ability to independently lead cross-disciplinary technical efforts spanning mechanical, electrical, RF, power, and systems engineering.  This is a full-time, on-site position in El Segundo, CA.   Responsibilities:  Lead the design and development of ruggedized electronic hardware and enclosures, including chassis, card-level packaging, mounting features, and thermal solutions, in accordance with program requirements and applicable standards  Own mechanical design responsibility for a subsystem or product area, ensuring alignment with system-level requirements and program constraints  Develop and maintain 3D CAD models, assemblies, detailed drawings, and interface control documentation (ICDs), ensuring production-ready quality and configuration control  Perform first-order structural and thermal analyses to support design decisions and verify compliance with environmental and performance requirements  Drive cross-disciplinary technical resolution involving mechanical, electrical, RF, power, and systems engineering teams  Serve as a key technical interface with suppliers and manufacturing partners  Perform make/buy assessments with manufacturing partners as required  Support production transition, configuration control, and fielded system sustainment, including investigation and resolution of integration issues    Minimum Requirements:  Bachelor’s degree in Mechanical Engineering or a related discipline  10+ years of progressively responsible experience in mechanical design and integration of electronic hardware for aerospace, defense, or similar applications  Strong proficiency with mechanical CAD tools (e.g., SolidWorks or equivalent) and experience producing produ...