Senior Silicon Photonics Engineer

About the role

This role designs high-speed silicon photonic integrated circuits operating at the limits of bandwidth and integration, taking them from concept through tapeout to silicon validation. It suits strong PhD graduates through early-career engineers (about 0-5 years of experience) who want to work on real, production-bound systems rather than just simulations.

Key responsibilities

• Design and optimize silicon photonic devices and circuits, including high-speed modulators (MZI, ring, advanced structures), photodetectors and receiver building blocks, and passive components (couplers, filters, routing)
• Run multi-domain simulations (EM, circuit, thermal) to meet targets in bandwidth (200G/lane+), insertion loss, extinction ratio and efficiency
• Implement PIC layouts (GDS) using foundry PDKs and support tapeouts
• Co-design with electronics and packaging teams for CPO/NPO systems, covering RF effects, parasitics, signal integrity and thermal constraints
• Support silicon bring-up and characterization by correlating measurements with simulation, and drive design iterations
• Contribute to design libraries, modeling and methodology development

Required profile

• PhD in Electrical Engineering, Physics or a related field (silicon photonics or closely related area)
• 0-5 years of relevant experience; fresh PhD graduates are welcome
• Nice to have: exposure to CPO/NPO or optical transceiver architectures, SiPh + III-V integration, and inverse design / adjoint methods (e.g. Meep)

Required skills

• Experience designing and simulating silicon photonic devices or PICs
• Strong understanding of guided-wave optics and device physics
• Familiarity with tools such as Lumerical, COMSOL or equivalent
• Exposure to PIC layout and tapeout flows (PDK, DRC/LVS)
• Basic understanding of optical communication systems and/or RF effects

What we offer

• Work on real products at 200G/lane+ with fast iteration cycles from design to silicon to system
• Direct impact on AI infrastructure and hyperscale systems
• High ownership early in your career
• Health insurance and a comprehensive benefits package
• A collaborative environment with world-class engineering and R&D teams