Member of Technical Staff, Ion Transport and Membranes

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 selective transport: membranes, channels, and gradients engineered to hold state and carry signal.

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

• Design and select membranes and channels with engineered selectivity and lifetime
• Measure transport under real operating conditions, not idealized ones
• Keep gradients stable across temperature, time, and duty cycle

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.