Senior Photonics Process Simulation Engineer — Equity

Xanadu; Santa Clara (CA); On-site; USD 150,000 - 200,000; Full time

Job summary

Xanadu is seeking a Sr. Photonics Process Simulation Engineer in Santa Clara, CA to lead the roadmap for predictive process simulation of ultra-low loss quantum photonic hardware.

You will stand up predictive foundry workflows within Xanadu’s Fabrication Process Engineering Team, bridging fab execution, multi-physics simulation, and optical data to optimize device performance and realize industry-leading propagation loss in photonic ICs.

Qualifications

• M.S. or Ph.D. in Microelectronics, Electrical Engineering, Materials Science, Physics, or a related technical discipline.
• 6+ years of hands-on experience in semiconductor process simulation (optical/EBL photolithography, plasma dry-etch modeling, TCAD, etc.)
• Deep proficiency with commercial semiconductor process simulation tools (e.g., Silvaco Victory Process, Synopsys Sentaurus, KLA PROLITH, or Coventor SEMulator3D)
• Experience in process development for integrated photonics and/or compound semiconductor platforms
• Experience with finite-element modeling of photonics and/or semiconductor devices

Responsibilities

• Build, maintain and utilize an integrated, closed-loop simulation pipeline that ingests inline fab data, simulates process variations, and feeds predicted 3D geometries into optical loss solvers.
• Utilize physics-based simulations, finite element modeling, stochastic lithography modeling, and/or 3D virtual fab tools to model geometry and line edge roughness.
• Propose, simulate, and validate experimental wafer splits to optimize plasma etch chemistry, mask erosion, taper angles, and sidewall smoothing.
• Establish the roadmap for process optimization, virtual fabrication, and predictive modeling.
• Ingest inline fab metrics, SEM/AFM data and optical loss testing into the simulation framework to calibrate models against measurements.
• Serve as the bridge between fab module engineers and optical design teams to ensure process development supports quantum hardware requirements

Skills

Semiconductor process simulation

Photonic device modeling

Finite-element analysis

Multi-physics simulation

Experimentation data interpretation

Education

M.S. or Ph.D. in Microelectronics, Electrical Engineering, Materials Science, Physics, or related

Tools

Silvaco Victory Process

Synopsys Sentaurus

KLA PROLITH

Coventor SEMulator3D

Ansys Lumerical

COMSOL

Job description

Xanadu is seeking a Sr. Photonics Process Simulation Engineer in Santa Clara, CA to lead the roadmap for predictive process simulation of ultra-low loss quantum photonic hardware.

You will stand up predictive foundry workflows within Xanadu’s Fabrication Process Engineering Team, bridging fab execution, multi-physics simulation, and optical data to optimize device performance and realize industry-leading propagation loss in photonic ICs.