Member of Technical Staff, Photonic Integrated Circuits

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 designer for chips that move and process information with light: photonic integrated circuits from layout to packaged, tested parts.

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

• Design photonic circuits: waveguides, modulators, detectors, and the electronics around them
• Drive co-packaged optics and fiber attach that survive the real world
• Build the test and characterization flows that make photonics a product discipline

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.