Mechanical Technician

Job Description

Job Description

Mechanical Technician

Location : Bay Area, in-person

About the Role

We're looking for a hands-on Mechanical Technician to become the backbone of our lab. This isn't just a maintenance role; you’ll be a crucial part of our R&D process, bringing our experiments to life. You'll build, assemble, and maintain the critical rigs and infrastructure that enable our core technology, from plumbing and piping to custom test fixtures. Your work will directly impact our ability to innovate quickly and reliably.

Responsibilities

• Construct, maintain, and repair our experimental rigs, including custom plumbing, piping, tanks, and electrical test fixtures.
• Assist with the day-to-day operation of experiments, providing hands-on troubleshooting to keep things running smoothly.
• Ensure the lab is organized, well-stocked, and safe, managing everything from tools to materials.
• Apply a creative and practical mindset to solve new mechanical challenges as they arise, helping us rapidly iterate on our designs.
• Work closely with our engineers and scientists to understand project needs and turn design concepts into working hardware.

Who We Are

Thunderstone is a deep-tech startup reinventing how the world accesses critical metals. Traditional mining is excavation-heavy, expensive, and environmentally destructive. We’re using underground lightning (high-voltage pulses) to open microscopic pathways in ore bodies, letting fluids flow and extract metals without digging.

Our work makes mining cleaner, cheaper, and scalable, unlocking the nickel, copper, and other metals the clean energy transition demands. We’re proud to be part of the Breakthrough Energy Fellows program, backed by world-class investors and strategic partners (including Rio Tinto).

If you want to be part of a company where your work doesn't just move experiments forward, but helps move the planet toward a sustainable future, Thunderstone is the place.

Requirements

Benefits