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Lumilens

IC/RTL Design Engineer

San JosefulltimemidAdded 1 month ago

About this role

Design and implement high-speed digital RTL for the front-end datapath of a chip, connecting UCIe and optical interfaces. You'll own blocks from micro-architecture through verification, writing clean, timing-aware SystemVerilog while collaborating across architecture, DV, and backend teams.

What you'll do

  • Develop block-level micro-architecture and RTL implementation in SystemVerilog for datapath, adapters, and FIFOs
  • Write lint-clean, CDC/RDC-clean RTL following coding standards and manage clock-gating and pipelining for power/timing
  • Create block-level testbenches, SVA assertions, and sanity checks before handing off to design verification
  • Integrate IP blocks, support parameterization, and ensure blocks meet configurability requirements
  • Partner with backend team on timing closure, synthesis, and physical design of assigned blocks
  • Support bring-up, debug, and silicon validation across simulation, emulation, and FPGA prototyping environments

What they're looking for

  • SystemVerilog RTL design (3+ years)
  • Digital design fundamentals: pipelining, FSMs, FIFOs, CDC, streaming interfaces
  • Lint and CDC/RDC compliance; clean RTL practices
  • Power and timing analysis; synthesis and timing closure
  • SVA assertion-based verification
  • Python, Perl, or TCL scripting for debug and automation
  • High-speed datapath or interface design (UCIe, PCIe preferred)
  • Simulation debug and waveform analysis
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Lumilens

Lumilens builds photonic chiplets and high-speed optical components for AI supercomputing and next-generation data center infrastructure. The company is hiring digital RTL designers, verification engineers, optical test engineers, and systems applications engineers to develop and validate its optical and electrical integration technologies.

View all jobs at Lumilens

Likely interview questions

  • Walk us through a datapath block you designed from micro-architecture to verification—how did you handle timing closure and power constraints?
  • Describe your experience with clock-domain crossing and CDC verification. What tools and methodologies have you used?