Mechanical Design Engineer

About the team

Droyd builds autonomous robotic systems that automate repetitive manual work in real environments. Our robots operate in production settings, which means mechanical design has to be robust, manufacturable, and tightly integrated with electronics and control systems.

Our mechanical team designs the structures, linkages, and assemblies that make the robots real. This work moves fast and lives on the shop floor as much as it does in CAD.

About the role

As a Mechanical Design Engineer at Droyd, you’ll own mechanical subsystems from first sketch through working prototype. You’ll design, build, break, and iterate on real hardware.

This is a hands-on role. You’ll spend time in CAD, but also at the printer, in the shop, and on the robot. You’ll work closely with electrical, software, and robotics teams to bring systems together.

This role is based in San Francisco, CA. We’re an in-person company. We build faster that way.

In this role, you’ll

• Own mechanical subsystem design from concept to prototype and iteration

• Design parts and assemblies in CAD, supported by hand calculations and FEA when needed

• Design for rapid prototyping methods including 3D printing and CNC machining

• Make decisions on materials, tolerances, and manufacturing methods

• Integrate mechanical designs with motors, sensors, electronics, and actuators

• Build prototypes yourself using 3D printers, shop tools, and CNC equipment

• Work closely with manufacturing to turn designs into physical hardware quickly

We’re looking for someone who

• Has a strong portfolio showing complete systems taken from concept to physical prototype

• Has experience on hands-on engineering teams such as Formula SAE, aerospace clubs, or robotics teams

• Has internship or early-career experience on real hardware projects or at hardware startups

• Is proficient with modern CAD tools (Onshape preferred, but not required)

• Understands manufacturing methods, tolerancing, and assembly workflows

• Is comfortable with hands-on fabrication and rapid iteration

Nice to have

• Experience with FEA, topology optimization, or generative design

• Exposure to electronics, controls, or mechatronic systems

• Interest in industrial or visual design alongside functional engineering

About Droyd

Droyd builds autonomous robotic systems to automate manual work for enterprises. We design the hardware, write the control stack, and deploy robots that operate in real environments.

If we do this right, robots stop being prototypes and start being infrastructure.

Join us and help build hardware that ships.