Member of Technical Staff, Electrochemical Systems

Threeum

Threeum is a frontier company building physical AI. We design the model and the machine as one system, so the full loop of training, deployment, and improvement runs faster, more capable, and more autonomous. Our goal is to make frontier AI physical, and to make it widely accessible.

The Role

We are looking for a scientist for charge moving between solids and liquids, measured precisely and kept stable for years inside a sealed machine.

Some example areas you might work on (not limited to):

• Characterize interfaces with impedance spectroscopy, voltammetry, and long-run drift studies
• Define operating envelopes and build the accelerated-aging tests that tell the truth early
• Carry systems from test cell to product-grade cell without losing the physics

If you want to build the machines the models deserve, we would love to hear from you.

We offer a base salary of $250,000 to $400,000 USD and a meaningful equity grant, depending on experience and background, along with competitive benefits.