Staff Mechanical Engineer - Upper Body Tech Lead

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Apptronik is a human-centered robotics company developing AI-powered robots to support humanity in every facet of life. Our flagship humanoid robot, Apollo, is built to collaborate thoughtfully with people, starting with critical industries such as manufacturing and logistics, with future applications in healthcare, the home, and beyond. We operate at the cutting edge of embodied AI, applying our expertise across the full robotics stack to solve some of society's most important problems. You will join a team dedicated to bringing Apollo to market at scale, tackling the complex challenges like safety, commercialization, and mass production to change the world for the better. JOB SUMMARY Apptronik is seeking a Staff Mechanical Engineer to serve as the technical lead for Apollo's upper body. This is a high-visibility leadership role responsible for the torso, head, and arm assemblies. You will own the complete lifecycle-architecture, design, integration, and verification-of the upper body stack. This position requires a rare blend of deep kinematic expertise and the ability to solve extreme "packaging" challenges, where high-performance compute, high-density batteries, and sensitive perception sensors must coexist within a compact, dynamic, and thermally-constrained frame. Finally, you will be responsible for translating visionary industrial design into high-fidelity, functional A-surfaces. ESSENTIAL DUTIES AND RESPONSIBILITIES or KEY ACCOUNTABILITIES System Architecture & Industrial Design Integration Upper Body Ownership: Define the mechanical architecture for the torso, head, and arms. Lead the trade-off studies between mass distribution, range of motion (ROM), and structural rigidity. ID Intent & A-Surfaces: Serve as the primary bridge between Industrial Design (ID) and Engineering. Responsible for incorporating ID intent into final A-surfaces , ensuring that mechanical constraints (draft, wall thickness, cooling vents) do not compromise the iconic Apollo head design language and brand identity. Aesthetic & Functional Synthesis: Manage the complex surfacing of the robot's "skin," ensuring seamless transitions between structural elements and aesthetic covers while maintaining IP (Ingress Protection) and thermal venting requirements. Complex Mechanism Design Kinematic Structures: Drive the development of high-performance robotic limbs. Design innovative mechanisms that manage extreme dynamic loads while maintaining the precision required for human-like manipulation. Structural Integrity: Lead the design of the primary "chassis" (torso) to protect internal electronics from high-energy impact events (e.g., falls) using advanced materials and topology optimization. High-Density Integration Subsystem Packaging: Lead the tight-space integration of the compute cluster (NVIDIA Jetson/SoMs), battery modules, and perception sensors (LiDAR, Depth Cameras) within the torso and head. Interconnect & Cable Management: Architect the routing strategy for complex wire harnesses through high-flex joints (shoulders, neck, elbows), ensuring multi-million cycle reliability and signal integrity. Verification & Leadership DVT Ownership: Define and execute the Design Verification Test (DVT) plan for the upper body stack, including environmental, vibration, and lifecycle testing. Technical Mentorship: Conduct deep-dive design reviews and establish company-wide standards for high-performance robotic design, mentoring senior and junior engineers. SKILLS AND REQUIREMENTS 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 and/or EXPERIENCE Experience: 8 years of experience in mechanical design of complex robotic systems Education: BS/MS in Mechanical Engineering, Robotics, or a related field. PHYSICAL REQUIREMENTS Prolonged periods of sitting at a desk and working on a computer Must be able to lift 15 pounds at times Vision to read printed materials and a computer screen Hearing and speech to communicate *This is a direct hire. Please, no outside Agency solicitations. Apptronik provides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or a