We're looking for a Senior Mechanical Engineer to own the head of our humanoid robot platform. The head is one of the most constrained and cross-functional subsystems on the robot - it packages cameras, speakers, and sensors into a tight envelope that must satisfy industrial design intent, thermal and structural requirements, and strict mass and center-of-gravity targets driven by the neck it sits on. You'll drive the head's internal architecture, work shoulder-to-shoulder with perception, industrial design, and cladding teams, and coordinate closely with the neck team on the interface that carries everything. This is a high-ownership role where your decisions define what our robot sees, hears, and looks like. **What You'll Do** - Own the mechanical architecture and packaging of the robot head, including cameras, speakers, microphones, and supporting electronics, within a tightly constrained envelope - Drive compatibility between the internal packaging and the industrial design surfaces, negotiating trade-offs between ID intent, sensor fields of view, thermal performance, and serviceability - Manage the head's mass properties - minimizing mass and controlling center-of-gravity location to meet targets defined with the neck team, so the head can move responsively without oversizing the neck actuation - Design stiff, stable sensor mounting - camera alignment, boresight retention through thermal and dynamic loading, and structural paths that keep image quality high while the head is in motion - Define and own the mechanical interface to the neck - the structural mount, alignment and registration features, electrical pass-through, and serviceability scheme - driving this interface to closure with the neck team - Work closely with the cladding team to define interfaces, attachment schemes, tolerances, and assembly sequences between the head structure and exterior cladding - Drive finalization of sensor requirements with perception and systems teams - locking placement, alignment, thermal, and mounting specifications for cameras and other head-mounted sensors - Create and maintain CAD models, drawings, tolerance stacks, and BOMs to support design reviews, prototyping, and manufacturing handoffs **What We're Looking For** - BS in Mechanical Engineering or a closely related field (MS preferred) - 5+ years of experience in mechanical design of complex electromechanical products - robotics, consumer electronics, camera systems, or similar - Demonstrated experience packaging sensors, cameras, or dense electronics in tightly constrained, thermally challenging envelopes - Strong command of mass properties analysis and the discipline to design to hard mass and CG budgets - Experience with precision optical or sensor mounting - alignment, boresight stability, and tolerance analysis for optical assemblies - Expert-level proficiency with CAD software (SolidWorks, Fusion 360, Onshape, or similar) for complex part and assembly design - Experience collaborating with industrial design teams and translating ID surfaces into manufacturable, serviceable mechanical architectures - Deep familiarity with manufacturing processes - machining, injection molding, die casting, sheet metal, 3D printing - and design-for-manufacture principles - Comfort working hands-on with hardware: building prototypes, running tests, and troubleshooting physical systems - Strong communication skills and the ability to drive requirements to closure across mechanical, electrical, software, and design disciplines **Nice to Have (But Not Required)** - Experience packaging camera modules or vision systems in consumer electronics, AR/VR headsets, drones, or robotics - Background in acoustic design - speaker enclosures, microphone placement, or noise/vibration mitigation - Familiarity with thermal design and simulation for sealed or semi-sealed electronics enclosures - Experience designing to industrial design intent on consumer-facing products - Experience defining sensor requirements alongside perception or computer vision teams - Working knowledge of GD&T (ASME Y14.5) applied to optical and precision mechanical assemblies - Experience taking a subsystem from concept through DVT/PVT into production **Why This Role** - Own the face of the robot - the head is what people look at and interact with, and you'll own everything inside it, from sensor packaging through ID integration - Work at the intersection of perception and industrial design - few mechanical roles demand optical packaging, acoustics, thermals, and aesthetic collaboration in one tightly constrained envelope - Join at a foundational moment and make the decisions that define the physical identity of a next-generation humanoid robot