Mechanical / Robotics Engineer

About the Role

Full-time role. Cambridge, MA.

Salary: $100k - $120k

Equity grant: early robotics startup levels

US CITIZENSHIP REQUIRED

Key Responsibilities

• Design mechanical components, assemblies, enclosures, structures, and mechanisms for autonomous underwater vehicles.
• Create detailed 3D CAD models, assemblies, engineering drawings, and BOMs.
• Use Fusion 360 or similar professional CAD software for mechanical design.
• Design parts for CNC machining, 3D printing, and other manufacturing processes using DFM/DFA principles.
• Build and rapidly iterate prototypes using machining, additive manufacturing, and other fabrication techniques.
• Perform tolerance analysis, material selection, fit checks, and mechanical calculations.
• Design for marine environments, including waterproofing, sealing, corrosion, pressure, and thermal considerations.
• Assemble, integrate, troubleshoot, and repair robotic systems.
• Work with electrical, software, autonomy, and sonar engineers to integrate sensors, electronics, batteries, and propulsion systems.
• Develop test fixtures and conduct bench, laboratory, and in-water testing.
• Work with vendors and machine shops to manufacture custom components.
• Help transition prototypes into repeatable, manufacturable products.

Requirements & Tech Stack

• Bachelor’s degree (ongoing or completed) in Mechanical Engineering, Robotics, Mechatronics, or a related discipline.
• Excellent 3D CAD and mechanical design skills.
• Fusion 360 strongly preferred; SolidWorks, Onshape, Creo, Inventor, or similar experience is also valuable.
• Understanding of CNC machining and designing machinable parts.
• Hands-on experience with 3D printing and rapid prototyping.
• Strong mechanical engineering fundamentals, including mechanics, materials, manufacturing, tolerances, GD&T, fasteners, and DFM/DFA.
• Ability to create and read engineering drawings.
• Comfortable with hand tools, measurement equipment, machining, assembly, and troubleshooting.
• Ability to take a problem from concept → design → fabrication → assembly → test → iteration.
• US CITIZENSHIP REQUIRED.
• Must be eligible to obtain and maintain a U.S. Secret security clearance.

Bonus Experience

• Robotics, AUVs, ROVs, drones, or other electromechanical systems.
• CNC programming/CAM or operating CNC equipment.
• Manual mill and lathe operation.
• Waterproof enclosures, O-rings, seals, pressure vessels, or subsea systems.
• Motors, thrusters, bearings, propulsion, or rotating machinery.
• FEA or engineering simulation.
• Electronics packaging or electromechanical integration.
• Formula SAE, robotics teams, underwater robotics, rocketry, personal projects, or other hands-on engineering competitions/projects.