Asteralabs

Principal Physical Design Engineer

San Jose, California, United States. Posted 7 months ago

The role

You will own the backend implementation of complex, high-performance SoCs. You will drive floorplan, timing, power, and signoff decisions for connectivity silicon.

What you will do

  • Own the full RTL2GDS flow on advanced process nodes
  • Drive block- and chip-level place & route strategy, congestion resolution, and routing convergence
  • Architect clock tree synthesis and clocking topology
  • Lead tapeout execution including final ECO closure, GDS handoff, and post-tapeout support
  • Drive multi-mode multi-corner STA closure, low-power implementation, and IR/EM analysis
  • Own physical verification and reliability signoff
  • Define methodology for ECO flows, hierarchical timing, and full-chip signoff
  • Partner with RTL, DFT, analog/mixed-signal, package, and CAD teams
  • Establish and evolve physical design methodology, scripts, and flows
  • Mentor engineers, drive design reviews, and represent Physical Design in program-level technical decisions

Required qualifications

  • Bachelor's degree in Electrical Engineering, Computer Engineering, or related field
  • 8+ years of physical design experience with multiple tapeouts on advanced process nodes (7nm or below)
  • Deep expertise in synthesis, place & route, CTS, and timing closure using industry-standard tools (Synopsys Fusion Compiler / ICC2, Cadence Innovus, PrimeTime)
  • Strong command of low-power design techniques (multi-Vt, power gating, DVFS, UPF)
  • Proficiency in Tcl/Python scripting for flow automation
  • Proven track record delivering high-frequency, high-complexity SoC blocks or full-chip implementations to production

Nice to have

  • MS in Electrical Engineering or Computer Engineering
  • Experience with high-speed SerDes-heavy designs, PCIe Gen 6/7, or UALink/UCIe-based connectivity SoCs
  • Hands-on experience with hierarchical implementation and full-chip integration of large designs (>500M gates)
  • Familiarity with EMIR, thermal, and package co-design considerations
  • Experience mentoring senior engineers and driving methodology adoption across teams

Benefits

  • discretionary bonus
  • incentives
  • benefits

About the company

Astera Labs (NASDAQ: ALAB) provides rack-scale AI infrastructure through purpose-built connectivity solutions. The company's Intelligent Connectivity Platform integrates semiconductor-based technologies with the COSMOS software suite.

Principal Physical Design Engineer at Asteralabs | JobZoey