Senior Engineer II, Robotics Mechanical Design

Cambridge, MA USA · Alewife, Cambridge · USD 136,800-190,634 · Onsite · Posted Oct 9, 2026

At a glance

As the Robotics Mechanical Design Engineer, you will own the mechanical design of custom mobile manipulator configurations end to end.
You will mock up multiple iterations, model them fully in CAD, and prepare designs for simulation and physical build.
This is a hands-on mechanical and mechatronic design role, not a robotics software or controls position.

Design and iterate mounting and integration concepts combining robot arms with AMR/AGV base platforms
Produce multiple design options per platform combination for evaluation
Model custom mobile manipulator configurations in CAD, including brackets, structural supports, and interface hardware
Run mass, center-of-gravity, and payload analysis to keep configurations within manufacturer specifications
Design cable, hose, and connector routing between the arm, end effector, and AMR base
Prepare simulation-ready CAD models and specifications (exportable URDF/mesh geometry) for Isaac Sim validation
Document design decisions, tolerances, and assembly procedures, and support physical build and integration

Mechanical or mechatronic design experience in a production, commercial, or applied R&D setting, ideally involving robotics or automated equipment
Strong proficiency in 3D CAD software (SolidWorks, Fusion 360, Onshape, or similar)
Experience designing mechanical mounts, brackets, or structural interfaces for hardware integration
Understanding of payload, mass properties, and center-of-gravity considerations for robotic arms on mobile bases
Familiarity with robot arm and AMR specifications, including mounting interfaces, payload limits, and reach envelopes
Comfortable iterating quickly, producing and revising multiple design options rather than one final design upfront
Strong documentation habits, with the ability to communicate design intent and constraints to a non-mechanical audience

Experience preparing CAD models for downstream simulation use, exporting clean geometry at a level of detail suited to URDF/mesh conversion
Experience with robot arms and AMRs specifically, rather than general industrial equipment
Familiarity with ROS2/URDF conventions
Experience with NVIDIA Isaac Sim or other robotics simulation tools
Background in industrial design for warehouse automation, logistics robotics, or manufacturing equipment
Experience with rapid prototyping methods such as 3D printing, sheet metal, and machining for early design iterations