Lumilens

Senior Silicon Photonics Engineer

Singapore, Singapore, Singapore · On-site · FullTime

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About the role

Description from the employer’s posting. Check the employer’s page for the current version.

EmployerLumilens
LocationSingapore, Singapore, Singapore
Work styleOn-site
Employment typeFullTime
Employer posted2 months ago

Role Overview

You will design high-speed silicon photonic integrated circuits operating at the limits of bandwidth and integration, and take them from concept → tapeout → silicon validation.

This role is suitable for strong PhD graduates through early-career engineers (~0–5 years experience) who want to work on real, production-bound systems, not just simulations.

Roles & Responsibilities

Design and optimize silicon photonic devices and circuits, including:

High-speed modulators (MZI, ring, advanced structures)

Photodetectors and receiver building blocks

Passive components (couplers, filters, routing)

Perform multi-domain simulations (EM, circuit, thermal) to meet targets in:

Bandwidth (200G/lane+)

Insertion loss, extinction ratio, efficiency

Implement PIC layouts (GDS) using foundry PDKs and support tapeouts

Co-design with electronics and packaging teams for CPO/NPO systems:

Show full description

RF effects, parasitics, signal integrity, and thermal constraints

Support silicon bring-up and characterization:

Correlate measurement vs simulation

Drive design iterations and improvements

Contribute to design libraries, modeling, and methodology development

Requirements

Education

PhD in Electrical Engineering, Physics, or related field (silicon photonics or closely related area)

Experience

0–5 years of relevant experience (including fresh PhD graduates)

Technical Skills

Experience in design and simulation of silicon photonic devices or PICs

Strong understanding of guided-wave optics and device physics

Familiarity with tools such as Lumerical, COMSOL, or equivalent

Implementation Skills

Exposure to PIC layout and tapeout flows (PDK, DRC/LVS)

System Awareness

Basic understanding of optical communication systems and/or RF effects

Nice to Have

Experience with high-speed devices (>100 GHz bandwidth or equivalent)

Exposure to CPO/NPO or optical transceiver architectures

Familiarity with SiPh + III-V integration

Experience with inverse design / adjoint methods (e.g., Meep)

Why Join Us

Work on real products at 200G/lane+, not just research prototypes

Direct impact on AI infrastructure and hyperscale systems

Fast iteration cycles from design → silicon → system

High ownership early in your career

Comprehensive benefits package including health insurance

Collaborative environment with world-class engineering and R&D teams

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