Member of Technical Staff, Processor Design

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 an engineer for CPU-adjacent hardware: cores, accelerators, and the instruction-level decisions that shape everything above them.

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

• Design microarchitecture for latency-critical control and inference paths
• Build accelerators where general-purpose cores stop making sense
• Own verification depth that matches the ambition

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.