Senior Physical Design Engineer — Advanced-Node ASICs

Doist; San Jose (CA); On-site; USD 180,000 - 260,000; Full time

Job summary

Lumilens is seeking a Senior Physical Design Engineer to join our silicon design team, building high-performance ASICs on 5nm and 3nm nodes. You will own physical implementation from RTL to GDSII and drive timing, power, and area closures.

Collaborate with RTL, STA, IP, and verification to deliver tapeout-ready designs. Requires 8+ years in physical design, expertise in floorplanning, placement, CTS, routing, and signoff. This is a hands-on role at our San Jose site.

Qualifications

• Bachelor’s or Master’s degree in Electrical/Electronics Engineering.
• 8+ years of hands-on physical design experience.
• Experience with advanced technology nodes at 5nm or below.
• Strong knowledge of floorplanning, placement, CTS, routing, IR drop mitigation, timing closure, and signoff.

Responsibilities

• Own full-chip and block-level physical implementation, including floorplanning, placement, CTS, routing, and physical verification for high-speed designs in advanced nodes.
• Collaborate with RTL and STA teams to ensure clean handoffs and convergent timing, area, and power closure.
• Apply physical design techniques for multi-voltage and multi-frequency domains, hierarchical implementation, and congestion mitigation.
• Perform tapeout signoff activities including PV, EM/IR, ESD and related verification tasks.

Skills

Physical design

Floorplanning

Placement

CTS

Routing

IR drop mitigation

Timing closure

Signoff debugging

High-Speed PHY

Education

Bachelor’s or Master’s degree in Electrical Engineering

Tools

Synopsys ICC2

RedHawk SC

Cadence Innovus

Voltus

Calibre (Siemens)

Job description

Lumilens is seeking a Senior Physical Design Engineer to join our silicon design team, building high-performance ASICs on 5nm and 3nm nodes. You will own physical implementation from RTL to GDSII and drive timing, power, and area closures.

Collaborate with RTL, STA, IP, and verification to deliver tapeout-ready designs. Requires 8+ years in physical design, expertise in floorplanning, placement, CTS, routing, and signoff. This is a hands-on role at our San Jose site.