Mechanical Engineer, Biomechanics

The Mission

At GRAM, we believe the next great leap for humanity will be physical, not digital.

What AGI is to bits, Self-Replication (SR) is to atoms

As an SR research and deployment company

, our mission is to make humanity galactic by enabling physical exponential growth

To achieve this, we are conducting foundational research across general-purpose robotics, artificial intelligence, biology, and materials science to enable SR within our lifetimes

Our first step is to challenge the consensus that robots should look like us. We believe true progress comes from optimizing for function over form. We are creating a new embodiment for intelligence, designed from first principles to build the future physical economy, on and off-world.

The Role

At GRAM, we are not integrating off-the-shelf components; we are building a novel physical being from the ground up. This role is for the engineers who build the machine itself : the bones, muscles, and nerves of our Insectoid robot. You will be responsible for inventing the core hardware that pushes the boundaries of performance and efficiency, creating a system that is greater than the sum of its parts.

This is a unique opportunity to solve fundamental challenges in mechatronics, power density, and biomechanics for a completely new robotic morphology. You will work at the intersection of mechanical design, electronics, and firmware to bring our vision to life, creating the physical foundation upon which all of our advanced AI will run.

Key Responsibilities :

Lead the mechanical design of the robot's locomotor system, translating principles from biology into robust, high-performance robotic limbs.

Own the full design lifecycle in CAD, from concept and kinematic modeling to detailed design, simulation, and prototyping of the entire leg structure.

Validate designs through rigorous physical testing, creating test plans and jigs to measure performance against key metrics like strength-to-weight and impact tolerance.

Serve as the architectural owner for the physical limb, ensuring seamless integration of actuators, transmissions, sensors, and adhesion systems.

Work in a deeply collaborative partnership with the Actuator and Locomotion engineers to create a tightly coupled hardware and software system.

About You

You are a first-principles thinker who is energized by solving problems that have no playbook. You are drawn to ambitious, long-term missions and want to build technology that fundamentally changes our physical capabilities. You thrive in a high-agency environment where you are given the ownership and resources to tackle core challenges.

Basic Qualifications :

MS in Mechanical Engineering, Robotics, or a related field with 3+ years of experience designing complex mechanical systems.

Expert proficiency in 3D CAD software (e.g., SolidWorks, NX, Onshape) for kinematics and structural design.

A strong foundation in dynamics and the principles of machine design.

A portfolio demonstrating hands-on experience building and testing functional hardware prototypes.

Preferred Qualifications :

A PhD from a top biorobotics or biomechanics lab.

Industry experience at a leading-edge robotics company, having shipped a complex robotic system.

Proven experience designing and building limbs for legged robots.

Expertise in topology optimization and other advanced simulation techniques to create lightweight, high-performance structures.

Location

This is an on-site role at our research lab in El Segundo, California

• . We offer significant relocation assistance for exceptional candidates.

Interview Process

After submitting your application, we review your portfolio and any exceptional work you've shipped. If your application demonstrates the caliber we seek, you'll enter our interview process, which is designed for speed and substance. We aim to complete it within one week from start to finish.

Compensation

Your total compensation reflects both the significance of early-stage equity and competitive market rates. The following is the general framework for all roles at GRAM.

GRAM is an equal opportunity employer. We evaluate solely on capability and drive.

Why Join?

We are an early, focused team of scientists and engineers building the system that builds itself.

GRAM is funded by leading investors and long-term visionaries

We are based in El Segundo, the heart of America's industrial future

, focused on solving one of the most important problems of our time.