Senior Physical Design Engineer (AI)

Location: Mountain View, California, onsite

Salary: $230,000–$400,000 base salary plus equity

Company

hirify.global is recruiting for a stealth AI infrastructure startup founded by engineers behind Tesla Dojo, Apple Silicon, AMD Zen, and Cerebras. The company is building a new computing platform using wafer-scale architectures and advanced 3D integration to improve AI performance, compute density, power efficiency, and cost.

What you will do

• Own physical design for AI accelerator silicon from floorplan through signoff.
• Drive synthesis, place and route, clock tree synthesis, timing closure, and ECO implementation.
• Collaborate with architecture, RTL, verification, foundry, and EDA teams to deliver production silicon.
• Solve complex timing, congestion, power, and physical implementation challenges.
• Use AI-assisted design flows to improve engineering productivity and tapeout execution.
• Help shape physical implementation methodology for next-generation AI accelerators.

Requirements

• 8+ years of hands-on physical design experience on advanced ASIC or SoC programs.
• End-to-end ownership of physical implementation from floorplan through signoff.
• Strong experience with synthesis, place and route, CTS, timing closure, and physical optimization.
• Experience delivering production silicon at advanced process nodes of 7nm or below.
• Expertise with tools such as Cadence Innovus, Synopsys Fusion Compiler, PrimeTime, or Tempus.
• Track record of solving implementation challenges across architecture, RTL, and physical design teams.

Nice to have

• GPU, CPU, AI accelerator, or datacenter silicon experience.
• CoWoS, 2.5D, or 3D packaging experience.
• IR/EM or signal integrity analysis experience.
• DFT-aware physical implementation experience.
• Direct collaboration with foundries and EDA vendors.

Culture & Benefits

• Work with a small, world-class engineering team.
• Build cutting-edge AI hardware from first principles.
• Participate in developing a fundamentally new computing platform.
• Receive equity in addition to the base salary.