Senior Signal Integrity Engineer
Core
Lead board-level high-speed electrical design and validation for 1.6T DR8 (200G/lane) OSFP optical modules, defining channel budgets and interface architectures from ASIC/DSP to front-panel.
Role type
Senior IC Signal Integrity Engineer (Optical Interconnects)
Builds
1.6T OSFP optical modules for AI supercomputing infrastructure
Domain
Photonics / High-Speed Electrical Design / Data Center Interconnects
Deliverable
production ML models | product features
Required skills
Very high-speed SerDes (100G/200G PAM4), SI/PI simulation (Sigrity, ADS, HFSS, SIwave), PCB stack-up and material selection, TDR/VNA/BERT measurement correlation, cross-functional technical leadership, root-cause analysis for SI/PI issues
Preferred skills
OSFP/OSFP-XD/QSFP-DD design experience, IEEE 802.3 DR8/FR8/LR8 standards knowledge, EMI/EMC and thermal considerations for pluggable modules
Technologies
Sigrity, ADS, HFSS, SIwave, HSPICE, TDR, VNA, BERT, Oscilloscope
Responsibilities
Define SI/PI architecture and design rules for 200G PAM4 lanes; Lead pre- and post-layout SI/PI simulations and sign-off multi-lane channels; Define PCB stack-ups, materials, via strategies, and routing guidelines; Drive cross-functional technical decisions balancing SI/PI with thermal and mechanical constraints; Lead lab correlation and validation plans including fixture design and measurements; Provide technical leadership for SI-related debug and design improvements; Establish company-wide SI/PI design methodologies and mentor junior engineers
Seniority
Senior, hands-on IC with technical leadership
