ASIC Physical Design Engineer, Principal
About The Position
Own physical implementation of Positron's AI accelerators from floorplanning through tapeout. Lead implementation methodology while partnering with RTL, synthesis, DFT, package, and backend design services to achieve world-class PPA. Success in this role looks like predictable implementation execution and excellent QoR across Positron's designs, paired with reduced schedule risk and a scalable implementation methodology that can support the company's growing portfolio of AI accelerators. Shape the physical implementation methodology for a new class of AI inference accelerators from the ground up. Work at the cutting edge of advanced-node design, tackling some of the hardest problems in power, timing, and signal integrity for frontier AI workloads.
Requirements
- 12+ years of experience in physical design, spanning floorplanning through tapeout.
- A proven track record across multiple advanced-node tapeouts.
- Expert-level proficiency in Innovus and ICC2 implementation flows.
- Deep expertise in physical implementation, including floorplanning, clock tree synthesis, timing, and power closure.
- Hands-on experience driving full signoff across timing, power, and related quality metrics.
- Candidates currently authorized to work in the U.S.
Nice To Haves
- Experience with AI accelerator design.
- Familiarity with large SRAM arrays.
- Experience with SerDes and LPDDR interfaces.
- Exposure to chiplet architectures and 2.5D advanced packaging.
- Eligible for H-1B visa transfers.
Responsibilities
- Own floorplanning, macro placement, and power planning across Positron's AI accelerator designs.
- Drive clock tree synthesis, place and route, and routing optimization through to timing closure.
- Own signal integrity, IR/EM closure, ECO implementation, and metal fill to deliver signoff-quality results.
- Own tapeout signoff for all physical implementation deliverables.
- Develop methodology for power grids, power/ground tiles, and bump planning.
- Build congestion analysis and wire estimation approaches to support early floorplan decisions.
- Define partitioning and hierarchical implementation strategies for complex, multi-block designs.
- Own Innovus-based implementation flows end to end.
- Apply hands-on expertise across Innovus, ICC2, Tempus, PrimeTime, Voltus, RedHawk, and Calibre.
- Drive closure across timing, power, area, congestion, DRC, LVS, EM, IR, and yield.
- Partner closely with backend design services to align on implementation strategy and execution.
- Review implementation quality and lead implementation reviews across the team.
- Apply AI-enabled techniques for automated QoR analysis, congestion prediction, routing prediction, and floorplan optimization.
Benefits
- Fully company-paid medical, dental, and vision insurance for you and your dependents
- Company-paid life and disability coverage, with voluntary options to add more
- Supplemental hospital, critical illness, and accident coverage available
- Unlimited paid time off
- 13 paid company holidays
- Company-provided computer and home office setup
- Competitive salary and equity
- 401(k) with company matching, eligible from day one
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What This Job Offers
Job Type
Full-time
Career Level
Principal
Education Level
No Education Listed
