Senior Silicon Photonics Design Engineer

Software Careers; Roskilde; On-site; DKK 671,642 - 1,119,403; Full time

Job summary

NVIDIA is seeking a Senior Silicon Photonics Design Engineer to advance the silicon-photonics design and modeling for our optical roadmap. You will develop co-simulation workflows, calibrate models against foundry and in-house data, and collaborate closely with circuit, system, and characterization engineers.

The role sits at the electronic-photonic boundary, requiring strong analytical skills and experience with photonic devices such as modulators, detectors, and waveguides.

Qualifications

• Experience in silicon photonics design and modeling.
• Proficiency in Verilog-A and co-simulation.
• Strong collaboration with circuit and system teams.
• Experience with measurement data and model calibration.

Responsibilities

• Develop and maintain electro-optic co-simulation flow.
• Define silicon-photonics test structures and characterization plans.
• Build and calibrate compact/behavioral models for silicon photonic components.
• Correlate models with measurement data.
• Partner with circuit/SerDes designers, system teams, and foundry contacts.
• Contribute to the shared component library and release process.

Skills

Co-simulation

Verilog-A

Circuit design

Cadence

Silicon photonics

Compact modeling

Optical design

Photonic tools

Lumerical

Ansys

OptoDesigner

Photonic physics

Resonators

Modulation

Waveguides

Testbenches

Model validation

Debugging

Analytical

PDK flow

DRC awareness

VNA measurement

Tools

Lumerical

Ansys

OptoDesigner

Synopsys

Cadence

PDK flow

Job description

# Senior Silicon Photonics Design Engineerat NVIDIA • Belgium, Ghent; Denmark, RoskildeBack to jobs1. Home2. Jobs3. Senior Silicon Photonics Design Engineer1w agoN## Senior Silicon Photonics Design EngineerNVIDIA30EngineeringFull-timeBelgium, Ghent; Denmark, RoskildeApply Job### Job DescriptionOptical interconnect is becoming the backbone of AI-scale computing, and co-packaged optics is one of the hardest, highest-impact problems in that shift. We're looking for a senior engineer to join the team that owns silicon photonics design and modeling for our optical roadmap. This role lives at the electronic-photonic boundary — building the models and co-simulation flows that let photonic and high-speed electronic designs be verified together. You'll work shoulder-to-shoulder with circuit, system, and characterization engineers, and share in the team's collective ownership of a foundational capability.What you'll be doing: Develop and maintain the electro-optic co-simulation flow, integrating Verilog-A compact models with circuit and link simulation so photonics and electronics can be verified in one environment. Define silicon-photonics test structures and characterization plans, and extracting compact-model parameters from measured optical, electrical, electro-optic, RF, and thermal data. Build and calibrate compact/behavioral models for silicon photonic components — ring modulators and resonators, Mach-Zehnder modulators, photodetectors, grating/edge couplers, waveguides, splitters, and thermo-optic phase shifters. Correlate models against foundry and in-house characterization data (spectra, S-parameters, OMA/ER), contributing to the model accuracy and validation the team is collectively responsible for. Partner closely with circuit/SerDes designers, system teams, and foundry contacts as the direct customers of the team's models. Contribute to the shared component library the team maintains — versioning, documentation, QA, and release — taking detailed physics/EM models as source data and abstracting them into design-usable form.### Skills Required* Electronic-photonic co-simulation* Verilog-A compact modeling* Circuit design environment* Cadence ecosystem* Silicon photonics device modeling* Compact modeling* Optical component design* Photonic simulation tools* Lumerical (FDTD, MODE, INTERCONNECT, CHARGE)* Ansys* Synopsys OptoDesigner/RSoft* Photonic device physics* Resonator theory (CMT, Q, FSR, ER/OMA)* Carrier-based and thermo-optic modulation* Waveguide loss and dispersion* Verification/testbench environments* Model correlation to measurement* Debugging* Analytical skills* Foundry PDK flow* Photonic layout/DRC awareness* Optical VNA/LCA measurement