Sr. Principal DSP Architect (Optical Transceivers & PAM4)

Astera Labs(8 days ago)

San Jose, CAOnsiteFull TimeSenior$210,000 - $260,000Engineering

About this role

Astera Labs is hiring a Sr. Principal DSP Architect to define and guide next-generation digital signal processing architectures for high-speed optical interconnects. The role focuses on advancing PAM4 and coherent/direct-detect optical transceiver technologies and driving roadmap decisions for 800G, 1.6T, and beyond. The position sits at the intersection of communications theory and silicon implementation to enable scalable AI infrastructure connectivity.

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Required Skills

DSP
PAM4
Coherent Optics
MATLAB
Python
SystemC
ADC/DAC
FEC
CDR
Equalization

+4 more

Qualifications

PhD in Electrical Engineering
MS in Electrical Engineering or Communication Theory

About Astera Labs

asteralabs.com

Astera Labs is a semiconductor company that builds purpose‑built connectivity silicon and system solutions for rack‑scale AI and modern data centers. They design high‑speed retimers, PHY/connectivity devices, interposers and companion firmware/software that extend signal reach, improve link reliability, and enable PCIe/CXL and other accelerator interconnects across cables and backplanes. Astera’s products add telemetry, error monitoring and management features to simplify integration for OEMs, cloud providers and hyperscalers. The company focuses on enabling scalable, low‑latency multi‑node AI training and inference systems.