Job Details

Senior Signal Integrity Engineer

Santa Barbara, CA

$220K–$250K + Bonus + Equity

We're hiring a Senior Signal Integrity Engineer to lead the design, modelling, and validation of high-speed optical link platforms for next-generation AI data centre interconnects.

You will own end-to-end signal integrity across electrical and electro-optical channels—covering PCB, package, and photonic interfaces—ensuring performance at state-of-the-art baud rates and tight BER targets.

Key responsibilities

• Own SI for high-speed links, including channel modelling, loss/reflection/crosstalk analysis, and equalisation strategy (FFE, DFE, CTLE)
• Define and review high-speed channel architecture across PCB, package, connectors, and photonic interfaces
• Drive SI design reviews with external partners and ensure performance margin targets are met
• Support electrical-to-optical interface integrity (driver–modulator, TIA/receiver paths)
• Guide high-speed PCB design (impedance control, return paths, vias, discontinuities)
• Lead lab validation and bring-up (eye diagrams, BER, jitter, VNA/TDR)
• Correlate simulation with measurement data and close performance gaps
• Support integration of photonic ICs (coupling, packaging, wirebonding, flip-chip)
• Collaborate on FPGA-based high-speed evaluation platforms
• Act as technical bridge between internal teams and external partners

Requirements

• BSc or MSc in Electrical Engineering, Photonics, or related field
• Strong experience in high-speed signal integrity (100–200G+ per lane systems)
• Experience with channel modelling, jitter analysis, and frequency/time-domain SI
• Hands-on with equalisation techniques (FFE, DFE, CTLE)
• Proven lab experience (oscilloscopes, BERTs, VNAs)
• Experience correlating simulation with measurements
• Strong understanding of high-speed PCB design and system-level hardware

What's on offer

• $220K–$250K + Bonus + Equity
• End-to-end ownership of high-speed signal integrity in optical interconnect systems
• Deep-tech startup environment working at the frontier of AI data centre connectivity