Mechanical Design Engineer
Droyd · San Francisco
About the Team
Droyd builds autonomous robotic systems that automate repetitive manual work in real environments. We design and manufacture our hardware in-house, which means iteration, fabrication, and execution all happen under one roof.
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 will own mechanical subsystems from first sketch through working prototype. You will design, build, break, and iterate on real hardware.
This is a hands-on role. You will spend time in CAD, but also at the printer, in the shop, and on the robot, working closely with electrical, software, and robotics teams to bring systems together.
This role is based on-site in San Francisco, CA.
In This Role, You’ll
Design & Engineering
Own mechanical subsystem design from concept to prototype and iteration
Design parts and assemblies in CAD, supported by hand calculations and FEA when needed
Make decisions on materials, tolerances, and manufacturing methods
Design for rapid prototyping methods including 3D printing and CNC machining
Prototyping & Build
Build prototypes yourself using 3D printers, shop tools, and CNC equipment
Work closely with manufacturing to turn designs into physical hardware quickly
Integration
Integrate mechanical designs with motors, sensors, electronics, and actuators
Collaborate with electrical, software, and robotics teams to bring systems together
Work Environment & Schedule
On-site in San Francisco, CA
Full-time
We’re Looking For Candidates Who
Have a strong portfolio showing complete systems taken from concept to physical prototype
Have experience on hands-on engineering teams such as Formula SAE, aerospace clubs, or robotics teams
Have internship or early-career experience on real hardware projects or at hardware startups
Are proficient with modern CAD tools
Understand manufacturing methods, tolerancing, and assembly workflows
Are 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 that operate in real production environments. We design the hardware, develop the control stack, and generate the data that enables generalist robotics.
If we do this right, robots stop being demos and start being infrastructure.
Join us and help build the systems that make it real.
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