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Salary
≈ $102k – $199k per year (Estimated)
Location
In office (San Jose)
Seniority
Middle · 3+ years exp
Visa
Filed H-1B visas in the last two years
Employment
Full-Time

Confirmed on the employer's own hiring board on Oct 17, 2026. First seen by Alion on Jul 6, 2026. Lumilens scores A on the Alion truth index.

Overview
Company
Impact
Profile match
Lumilens is a photonics startup that designs and manufactures optical interconnects and transceivers that link servers in large AI data center GPU clusters, headquartered in San Jose, California. Led by chief executive and co-founder Ankur Singla with a team drawn from Cisco, Juniper, Meta, Lumentum and Coherent, it launched publicly in 2026 backed by Mayfield, reporting more than 900 million dollars in funding and a 5.5 billion dollar valuation. Its openings are mostly for optical design, test and manufacturing engineers, signal and power integrity engineers, quality and failure analysis engineers and manufacturing site supervisors, including roles in Thailand.

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.

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