Staff Mechanical Engineer - End Effector Structure Tech Lead

Synthesia

$120K — $150K *
Consumer Technology
8 - 10 years of experience
Job Overview by Ladders

Qualifications

  • B.S. in Mechanical Engineering and 8+ years in mechanical design of robotic systems
  • Proven ability to lead technical initiatives and build consensus among stakeholders
  • Expertise in Class-A surfacing and complex geometries using SolidWorks or similar tools
  • Track record in designing multi-axis robotic arms or high-DOF mechanisms
  • Exceptional skills in tight-space systems integration; rugged electronics packaging experience is a plus

Responsibilities

  • Define the mechanical architecture for a multi-fingered humanoid hand
  • Lead the design of robust, multi-DOF finger mechanisms
  • Collaborate with actuation teams on tendon-driven design integration
  • Engineer designs for human-like interaction and safety
  • Perform structural analysis and validation for durability and high cycle life
  • Develop compact, integrated mechanical designs for actuation and sensing
  • Prototype, test, and refine designs based on evaluation and feedback
  • Ensure manufacturability and scalability of designs through DFM/DFA

Benefits

  • Opportunities for career advancement in a cutting-edge field
  • Collaboration with cross-functional teams in robotics and engineering
  • Mentorship opportunities to lead and influence junior engineers
  • Hands-on involvement in prototyping and iteration of innovative designs
  • Work at the forefront of human-robot interaction technology
Full Job Description
Job Summary

We are seeking a Staff Mechanical Engineer to lead the structural design and architecture of a next-generation robotic hand for a humanoid platform. This role goes beyond traditional end effectors-focusing on highly dexterous, human-like manipulation in unstructured environments.

As the technical lead for hand structures, you will define and drive the mechanical design of complex, multi-DOF systems that must balance strength, compliance, weight, and tactile interaction. You will work at the intersection of biomechanics, precision engineering, and robotics to create a hand capable of robust, versatile, and safe interaction with the world.
ESSENTIAL DUTIES AND RESPONSIBILITIES or KEY ACCOUNTABILITIES
  • Own the robotic hand structural architectureDefine the mechanical architecture of a multi-fingered humanoid hand, including finger topology, joints, palm structure, and load paths, balancing dexterity, strength, and weight.
  • Lead design of fingers and jointsDevelop robust, multi-DOF mechanisms with appropriate joint types, ensuring durability under off-axis loads, impacts, and real-world use.
  • Co-design with actuation systemsPartner with actuation team on tendon-driven or remote actuation designs, including cable routing, transmission efficiency, and wear reduction.
  • Engineer for contact-rich, human-like interactionDesign for grasping, pinching, sliding, and tool use, balancing compliance and stiffness for both precision and safe interaction.
  • Drive structural analysis and durabilityOwn FEA and validation for stress, fatigue, and impact. Design for high cycle life and address failure modes like wear, loosening, and material fatigue.
  • Enable compact, integrated designsBuild high-density mechanical systems that integrate actuation, sensing, and wiring within tight space constraints.
  • Lead prototyping and iterationRapidly prototype, test, and refine designs based on hands-on evaluation and system-level feedback.
  • Own manufacturability and scale-upDrive DFM/DFA, process selection, tolerancing, and supplier collaboration to ensure production-ready designs.
  • Collaborate cross-functionallyWork closely with controls, perception, electrical, and software teams to deliver a cohesive manipulation system.
  • Provide technical leadershipMentor engineers, lead design reviews, and set best practices for dexterous manipulation systems.
SKILLS AND REQUIREMENTS
  • Experience: B.S in Mechanical Engineering with a minimum of 8 years of experience in mechanical design of complex robotic systems
  • Drive Through Influence: A proven ability to lead technical initiatives and align cross-functional stakeholders without direct reporting authority. You must be able to build consensus on complex architectural trade-offs.
  • Surfacing Expertise: Proven ability to work with Class-A surfaces and complex geometries; expert-level proficiency in surfacing tools within SolidWorks, NX, Catia...
  • Subject Matter Expertise: Proven track record of designing multi-axis robotic arms or high-DOF dynamic mechanisms.
  • Packaging Mastery: Exceptional skills in "tight-space" integration; experience with ruggedized electronics packaging or automotive/aerospace interiors is a plus.
  • Education: BS/MS in Mechanical Engineering, Robotics, or a related field.
PREFERRED SKILLS AND REQUIREMENTS
  • Direct experience with robotic hands, dexterous manipulation, or anthropomorphic mechanisms
  • Familiarity with human hand biomechanics or bio-inspired design principles
  • Experience with tendon-driven systems, cable routing, or underactuated mechanisms
  • Background in compliant or soft robotic structures
  • Experience integrating tactile sensing or force feedback into mechanical designs
  • Knowledge of advanced materials and surface treatments for wear and grip optimization


*This is a direct hire. Please, no outside Agency solicitations.

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