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Phinitylabs

4 open roles

Physical Design Lead

San FranciscoFull-timePosted Oct 8, 2026

Job description

Phinity is an AI research lab focused on solving chip design. The bottleneck to AGI is compute, and we enable AI agents to tape-out chips autonomously, from architecture to post-silicon. We are building RL environments, agent infrastructure, and evaluation systems to accomplish this. Our team brings together deep AI and silicon expertise, including leaders and executives from top chip companies, post-training chip-design models at NVIDIA, AI for formal verification research, previous exits, and over 10 years of experience building chips at NVIDIA, Intel, Mediatek, and others.

We are hiring a Physical Design Lead. You will be responsible for:

  • Leading PD flows and optimization of block-level to full-chip level optimizations
  • Define Synthesis to layout flows, including PDN, clock-trees, PVT corners and custom cell definitions. Responsible for implementing characterization flows for custom cells and memory blocks.
  • Responsible for executing IP and Fullchip design optimizations working with PD engineers. Identify areas of optimization in design utilization, power grid and clock network within the design.
  • Responsible for delivering tapeout ready design optimized for the target PPA, and utilizing the in-house capability on prompt-to-GDS. Why Phinity
  • Work directly with the founders to shape the strategy and growth of an ambitious AI research lab
  • Take ownership of high-impact initiatives across business strategy, partnerships, and company operations
  • Collaborate with leading AI researchers and hardware experts at the frontier of autonomous chip design Benefits include
  • Health insurance
  • Retirement plans
  • Unlimited PTO
  • Paid parental leave
  • Lunch and dinner provided in-office

Description copied from Phinitylabs's careers page. Read the full posting before you apply.

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