Elon Musk is reviving one of his famed hiring tactics as he recruits skilled trades workers for the AI data center buildout by his rocket company, SpaceX.

Musk, in an X post last week, said SpaceX is hiring “exceptional engineering & skilled trades talent to build & operate the most powerful AI supercomputer clusters on & off Earth.”

The “off Earth” reference reflects Musk’s vision of placing data centers in space as a potential solution to AI’s soaring energy demands.

Interested applicants were asked to email “3 bullet points demonstrating evidence of exceptional ability,” along with their resume, to datacenters@spacex.com.

The three-bullet-point requirement has become a hallmark of the world’s richest man’s recruiting style.

The Tesla and SpaceX CEO has previously asked potential candidates for white-collar roles at his companies to provide three bullet points “demonstrating evidence of exceptional ability” or three bullet points on the “toughest technical problems” they’ve solved.

Musk’s hiring push for trades workers to build data centers comes as SpaceX plays an increasingly central role in his AI ambitions. Earlier this year, SpaceX acquired Musk’s AI startup, xAI, which was rebranded as SpaceXAI.

SpaceXAI now operates Colossus, the massive AI supercomputer campus built in Memphis, Tennessee, that trains the company’s Grok AI models.