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Tesla AI chip director departs for startup DensityAI

Shishuang Sun, Tesla's former Senior Director of AI Hardware Design, has joined DensityAI, a startup formed by former members of Tesla's Dojo team.

The short version

  • Shishuang Sun, previously Tesla's Senior Director of AI Hardware Design, joined AI hardware startup DensityAI in July to focus on packaging and system hardware.
  • DensityAI was founded by former Tesla Dojo leader Ganesh Venkataramanan after Tesla discontinued its Dojo project in August 2025.
  • Sun becomes the latest of approximately 20 former Tesla supercomputer and chip engineers to join the startup.

Key facts

  • Shishuang Sun left his position as Tesla's Senior Director of AI Hardware Design to join DensityAI in July in a packaging and system hardware role.[Electrek]
  • Sun had spent over five years across two separate stints at Tesla, working on hardware architecture for Autopilot and Dojo computers.[Electrek]
  • DensityAI was established by former Tesla Dojo chief Ganesh Venkataramanan following Tesla's shutdown of the Dojo project in August 2025.[Electrek]
  • Around 20 engineers from Tesla's supercomputer group previously joined DensityAI, where Tesla veteran Bill Chang serves as chief technology officer.[Electrek]
  • DensityAI develops hardware, chips, and software designed for AI data centers across automotive, robotics, and industrial applications.[Electrek]

Sources