Principal Signal/Power Integrity Engineer

1 week ago

Shanghai, Shanghai, China Astera Labs Full time CN¥1,200,000 - CN¥2,400,000 per year

Astera Labs (NASDAQ: ALAB) provides rack-scale AI infrastructure through purpose-built connectivity solutions grounded in open standards. By collaborating with hyperscalers and ecosystem partners, Astera Labs enables organizations to unlock the full potential of modern AI. Astera Labs' Intelligent Connectivity Platform integrates CXL, Ethernet, PCIe, and UALink semiconductor-based technologies with the company's COSMOS software suite to unify diverse components into cohesive, flexible systems that deliver end-to-end scale-up, and scale-out connectivity. Discover more at

At Astera Labs, we seek motivated Senior Principal Signal and Power Integrity Engineers to work on our game-changing portfolio of connectivity products for Artificial Intelligence and Machine Learning applications. In this role, you will execute the SI planning, design, modeling, simulation, and lab validation with various system configurations. This position will be onsite.

Basic Qualifications

· Strong academic/technical background in electrical engineering; Bachelor's is required; Master's preferred.

· 10+ years of experience supporting or developing complex SoC/silicon products for Server and Networking applications.

· 10+ years of hands-on high-speed SI/PI design, simulation, and measurement experience.

· Have a proven track record with defining hardware system constraints and high-speed technology roadmaps.

· Cross-functional design mentality with the silicon design community to develop systems.

· Self-starting, professional, and hands-on work ethic that can execute intense research in a dynamic environment.

· Proven track record solving problems independently, preferably as a tech lead.

· Entrepreneurial, open-minded behavior, and can-do attitude.

· Authorized to work in the US and start immediately.

Required Experience

· Familiar with SI and PI design challenges for PCIe Gen5/6 and/or 200/400G Ethernet PCB and interconnects

· 2D and 3D simulation experience with Cadence/Ansys/ADS/etc. toolsets

· EM modeling of connector structures

· High-speed SERDES channel simulation, and equalization

· Expertise in multi-level and NRZ signaling, COM, BER, jitter analysis

· Familiar with VNA, TDR, real-time and sub-sampling oscilloscopes, etc.

· Working knowledge of PCB fabrication limits and trade-offs

· PI experience a bonus.

· Familiar with industry-standard such as PCISIG, and IEEE802.3, especially Electrical sections.

· Working knowledge of key, high-speed design blocks such as PLLs, DFE, Tx EQ

· Proficiency in using high-speed lab equipment such as BERT, Oscilloscope, and VNA

· Strong debugging, analysis, and problem-solving skills with experience leading root cause and correction action teams. An inherent sense of urgency and accountability. Must have the ability to multi-task in a fast-paced environment.

We know that creativity and innovation happen more often when teams include diverse ideas, backgrounds, and experiences, and we actively encourage everyone with relevant experience to apply, including people of color, LGBTQ+ and non-binary people, veterans, parents, and individuals with disabilities.

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