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Role description

IC/RTL Design Engineer

Lumilens logolumilens
TypeFull-time
SeniorityMid-level
LocationSan Jose, CA
Posted7/6/2026
Engineering

IC/RTL Design Engineer/ Front-End Engineer

About the role. You design and implement the digital front-end RTL at the heart of the chip — including the high-speed datapath that moves data between UCIe and the optical front end. Guided by the interface specs and coding standards, you take blocks from micro-architecture through clean, timing-aware RTL and block-level verification. It's a hands-on role with room to grow your scope as the team and the chip mature.

What you'll do

  • Develop block-level micro-architecture for your assigned blocks, and contribute to interface and register definitions.

  • Design and implement front-end RTL blocks in SystemVerilog — datapath elements, the UCIe streaming/RDI adapter, elastic FIFOs, and supporting logic.

  • Integrate IP and support parameterization for configurability.

  • Write clean, lint-clean, CDC/RDC-clean RTL that follows the coding and quality standards.

  • Write block-level testbenches, sanity checks, and assertions (SVA) for your own blocks before handoff to DV.

  • Power- and timing-aware design — managing block activity, clock-gating, pipelining, and retiming; partner with the backend team on physical closure for your blocks.

  • Bring-up and debug across simulation and emulation / FPGA prototyping; support DV and silicon bring-up, including DFT/debug hooks in your blocks.

  • Collaborate with the architecture, modelling, DV, DFT, and backend teams as your blocks move through the flow.

Required

  • BS or MS in Electrical/Computer Engineering (or equivalent experience).

  • 3+ years of digital RTL design in SystemVerilog, with blocks taken from micro-architecture through to verification handoff.

  • Solid digital design fundamentals: pipelining, FSMs, FIFOs, clock-domain crossing, and streaming/bus interfaces (e.g., AXI).

  • Lint and CDC/RDC discipline and clean-RTL practices.

  • Power- and timing-aware design practices; comfort with synthesis and timing closure, working with the backend team.

  • Strong debug skills in simulation; scripting in Python, Perl, or TCL.

Preferred

  • High-speed datapath, SerDes-adjacent, or interface design exposure (UCIe, PCIe/CXL, or similar).

  • FEC/coding datapath familiarity (e.g., Reed-Solomon) and gray-code mapping.

  • Assertion-based verification (SVA) and familiarity with UVM block-level testbenches; emulation / FPGA prototyping experience.

  • Exposure to scale-up / scale-out interconnects or network switch / NIC / memory-controller datapaths.

  • Low-power / UPF and DFT (scan) concepts.

  • Optical transceiver, CPO, or linear-drive optics background; advanced-node (N5/N3/N2) design experience.

Relevant archetypes

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Company info

Lumilens logo

Lumilens

The Connectivity Platform for AI

Lumilens is the connectivity platform for AI infrastructure, delivering scale-up and scale-out optical interconnect solutions designed for the performance, power, and bandwidth demands of next-generation AI workloads. The company designs, develops, and manufactures near-package optics (NPO), co-packaged optics (CPO), and pluggable optical transceivers for hyperscaler AI data centers. Lumilens is backed by Addition, Atreides Management, Bain Capital Ventures, Mayfield, Meritech, Redpoint Ventures, Seligman Ventures, Spark Capital, and other leading venture capital and private investors.

Private companySeries C
Founded2024
HQSan Jose, United States
Size201–500 employees
Unlock human wisdom
ThesisTermsPrivacy
Industry
Computer Networking Products
Funding
  • Series C · Aug 6, 2026
  • Series B · $9.2M · May 6, 2025
Investors
Bain Capital VenturesMeritech Capital PartnersSeligman VenturesSpark CapitalAtreides Management

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