Sr. Physical Design Engineer
Lumilens· Engineering
San JoseFull-timePosted 2mo ago
About the role
Senior Physical Design Engineer to join Lumilens' silicon design team, owning physical implementation from RTL to GDSII for high-performance ASICs on advanced TSMC nodes (5nm/3nm), driving timing and power closure and collaborating with RTL, STA, IP, and verification teams.
Responsibilities
- Physical Implementation: Own full-chip and block-level physical implementation, including floorplanning, placement, CTS, routing, and physical verification for high-speed designs in advanced TSMC nodes.
- Timing, Power, and Area Closure: Collaborate with RTL and STA teams to ensure clean handoffs and convergent timing, area, and power closure across complex design blocks and full chip.
- Advanced Physical Design: Apply physical design techniques for multi-voltage and multi-frequency domains, hierarchical implementation, physical-aware synthesis, congestion mitigation, skew optimization, and RC extraction-aware placement and routing.
- Signoff and Tape out: Perform tapeout signoff activities, including PV, EM/IR, ESD and ejobview using industry-standard verification tools.
Qualifications
- Education: Bachelor’s or Master’s degree in Electrical Engineering, Electronics Engineering, or a related field.
- Experience: 8+ years of hands-on physical design experience, preferably with advanced technology nodes at 5nm or below.
- Physical Design Expertise: Strong experience with floorplanning, placement, CTS, routing, IR drop mitigation, timing closure, and signoff debugging.
- Tools and Automation: Hands-on experience with tools such as Synopsys ICC2, RedHawk SC, Cadence Innovus, Voltus, Siemens Calibre etc, along with strong scripting skills in Tcl, Python, or Perl.
Skills
Required:Physical designRTL to GDSII workflowPower/Timing/Area closure
Benefits
- Competitive salary commensurate with experience
- Comprehensive benefits package including health insurance
- Professional development opportunities and certification support
- Access to cutting-edge technology and cloud platforms
- Collaborative work environment with cross-functional teams
Last updated Oct 24, 2026. Interested? Apply on the company site.
About Lumilens
Connectivity Platform for AI
Lumilens provides next-gen photonic interconnects for massively scaling out – and scaling up – AI compute infrastructure.
Photonic InterconnectsNext-Gen ManufacturingSystem-level knowledgeLumicore platformCPO/SiPh manufacturing
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