Senior ASIC Physical Design Engineer — Remote-First & Equity

Positron; United States; Remote; USD 150,000 - 250,000; Full time

Benefits offered by this job

Fully company-paid medical, dental, &

Remote-first culture with home office

Job summary

Positron AI is building next-generation AI inference accelerators. This Senior Physical Design role contributes from floorplanning through tapeout, partnering with RTL, synthesis, DFT, package, and backend design services to achieve world-class PPA.

You'll drive implementation, timing, and signoff across blocks, with a focus on AI accelerator designs, using Innovus/ICC2, and collaborating with backend teams. This remote-friendly role offers a competitive base salary and strong benefits.

Qualifications

• 5–8 years of experience in physical design from floorplanning through tapeout.
• Experience contributing to one or more advanced-node tapeouts.
• Strong proficiency in Innovus and/or ICC2 implementation flows.
• Solid working knowledge of floorplanning, clock tree synthesis, timing, and power closure.
• Experience supporting signoff across timing, power, and related quality metrics.

Responsibilities

• Support floorplanning, macro placement, and power planning across AI accelerator designs.
• Drive clock tree synthesis, place and route, and routing optimization through to timing closure.
• Contribute to signal integrity, IR/EM closure, ECO implementation, and metal fill for signoff-quality results.
• Support tapeout signoff for physical implementation deliverables.
• Contribute to power grids, power/ground tiles, and bump planning.
• Assist in congestion analysis and floorplan decisions.
• Support partitioning and hierarchical implementation under guidance.

Skills

Physical design

Floorplanning

Timing closure

Power closure

Collaboration with backend teams

Data-driven QoR

Tools

Innovus

ICC2

Tempus

PrimeTime

Voltus

RedHawk

Calibre

Job description

Positron AI is building next-generation AI inference accelerators. This Senior Physical Design role contributes from floorplanning through tapeout, partnering with RTL, synthesis, DFT, package, and backend design services to achieve world-class PPA.

You'll drive implementation, timing, and signoff across blocks, with a focus on AI accelerator designs, using Innovus/ICC2, and collaborating with backend teams. This remote-friendly role offers a competitive base salary and strong benefits.