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Senior Mechanical Engineer- Actuators and Gearbox

Amazon· Hardware Development / Fauna Robotics
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New York, NY$157.1k - $212.6kFull-timePosted yesterday

About the role

Senior Mechanical Engineer to design, prototype, test, and scale actuator systems for Fauna Robotics’ robotic platforms, with a focus on motor and precision gearing design, electromagnetics, transmission types, sensing, structural components, and thermal management.

Responsibilities

  • Lead the selection, design, and integration of robotic actuators.
  • Create and optimize precision mechanical systems, including linkages, joints, and actuation systems
  • Collaborate with electrical and software engineers to integrate sensors, drive electronics, and control systems
  • Define actuator requirements around torque density, bandwidth, efficiency, thermal performance, back drivability, inertia, reliability, manufacturability, and cost.
  • Develop test infrastructure and expertise for measuring performance and reliability.
  • Work with suppliers and manufacturers worldwide to source components, manage production timelines, and maintain quality standards
  • Perform life-cycle testing, quality assurance, and failure analysis to validate designs and ensure product reliability
  • Oversee the transition of designs from prototype to mass production, including working directly with manufacturing partners globally
  • Maintain detailed design documentation, including CAD models, drawings, and test data

Qualifications

  • Bachelor's degree or above in robotics, mechanical/mechatronics engineering, systems engineering or related field
  • Experience in developing functional specifications, design verification plans and functional test procedures
  • 7+ years of working designing gears systems, robotic actuators, or precision mechatronic hardware
  • Experience with CAD software (Solidworks, Onshape, NX, Catia, etc)
  • Strong understanding of motors, transmissions, bearings, encoders, structural design, thermal management, and precision mechanical integration.
  • Proficiency in designing machined, cast, and 3D-printed parts
  • Experience with mechatronics, including sensors, actuators, and motion control systems
  • Understanding of manufacturing processes and working with a global supply chain

Skills

Required:Actuator design and integrationMechanical system designCross-functional collaborationActuator requirements definitionTest infrastructure developmentSupplier/vendor managementLife-cycle testing and QA

Benefits

  • Health insurance (medical, dental, vision, prescription)
  • Basic Life & AD&D insurance with option for Supplemental life plans
  • EAP, Mental Health Support, Medical Advice Line
  • Flexible Spending Accounts
  • Adoption and Surrogacy Reimbursement coverage
  • 401(k) matching
  • Paid time off
  • Parental leave
Last updated Oct 25, 2026. Interested? Apply on the company site.

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