Principal Engineer, AMS

Posted 2 Days Ago
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Toronto, ON
Senior level
Artificial Intelligence • Machine Learning
The Role
The Principal Engineer will lead high-performance analog design for transceivers, collaborating with cross-functional teams to architect and validate circuits. Responsibilities include designing SerDes, guiding layout engineering, and interfacing with customers.
Summary Generated by Built In

About Celestial AI

As Generative AI continues to advance, the performance drivers for data center infrastructure are shifting from systems-on-chip (SOCs) to systems of chips. In the era of Accelerated Computing, data center bottlenecks are no longer limited to compute performance, but rather the system’s interconnect bandwidth, memory bandwidth, and memory capacity. Celestial AI’s Photonic Fabric™ is the next-generation interconnect technology that delivers a tenfold increase in performance and energy efficiency compared to competing solutions.

The Photonic Fabric™ is available to our customers in multiple technology offerings, including optical interface chiplets, optical interposers, and Optical Multi-chip Interconnect Bridges (OMIB). This allows customers to easily incorporate high bandwidth, low power, and low latency optical interfaces into their AI accelerators and GPUs. The technology is fully compatible with both protocol and physical layers, including standard 2.5D packaging processes. This seamless integration enables XPUs to utilize optical interconnects for both compute-to-compute and compute-to-memory fabrics, achieving bandwidths in the tens of terabits per second with nanosecond latencies.

This innovation empowers hyperscalers to enhance the efficiency and cost-effectiveness of AI processing by optimizing the XPUs required for training and inference, while significantly reducing the TCO2 impact. To bolster customer collaborations, Celestial AI is developing a Photonic Fabric ecosystem consisting of tier-1 partnerships that include custom silicon/ASIC design, system integrators, HBM memory, assembly, and packaging suppliers.

Job Description

In this role, you join a world-class analog team designing high performance analog and mixed mode circuits. You will leverage your deep knowledge and experience in analog design to provide technical, cross-functional leadership, partnering with Systems, Analog and Digital teams to architect and design circuits for high performance transceivers and other critical analog functions. This role requires a candidate with strong communication and collaboration skills, as key responsibilities include interfacing across the internal Celestial AI teams as well as externally with customers and partners.

Key Responsibilities

  • Design, Analog design of high-speed and high-performance SerDes in advanced technology nodes, 5nm, 3nm and beyond
  • Work closely with System, Analog and Digital design teams for SerDes Architecture Development
  • Develop AE/validation for the IP characterization and validation plan
  • Support customers and partners
  • Provide guidance and directive to layout engineers

Qualifications

  • Master’s degree and/or PhD Preferred in Electrical Engineering or related fields with 8+ years of experience.
  • Proficiency with:
    • Analog circuit blocks such as PLL, Data Converters, Oscillators and high-speed SerDes blocks (CTLE, FFE, DFE, CDR, PLL, Line driver, etc.)
    • Analog design and verification tools (Virtuoso, Spectre, ADE and post layout extraction tools) is a must
    • System level pre-tape out analog validation
    • Lab chip bring-up and debugging efforts
  • Knowledge of:
    • Electromagnetic tools and extraction
    • Fundamentals on signal integrity improvement, noise reduction and Multi-GHz low-jitter clock generation & distribution
    • Analog layouts in FinFet and its effect on high-speed designs
  • Strong communication and documentation skills


Location: Toronto, Ontario, Canada

As an early startup experiencing explosive growth, we offer an attractive total compensation package, inclusive of competitive base salary, bonus and a generous grant of our valuable early-stage equity. The base salary range for this position is 199,000 CAD - 230,000 CAD. The range displayed reflects the minimum and maximum target salaries for the position. Within the range, individual pay is determined by work location and additional factors, including job-related skills, experience, and relevant education or training.

We offer great benefits (health, vision, dental and life insurance), collaborative and continuous learning work environment, where you will get a chance to work with smart and dedicated people engaged in developing the next generation architecture for high performance computing.

Celestial AI Inc. is proud to be an equal opportunity workplace and is an affirmative action employer.


#LI-Onsite

Top Skills

Analog
The Company
HQ: Santa Clara, CA
60 Employees
On-site Workplace
Year Founded: 2020

What We Do

Celestial AI is a Machine Learning (ML) accelerator company that has developed a proprietary technology platform which enables the next generation of high-performance computing solutions. Celestial AI’s mission is to transform data parallel computing with a proprietary Photonic Fabric™ technology platform which uses light for data movement both within chip and between chips.

Advancements in data communications have driven robust silicon photonics technology and volume manufacturing ecosystems that are ripe for commercial implementation of ML and high-performance computing (HPC) solutions which leverage integrated silicon photonics for data movement.

Celestial AI’s system delivers differentiated single node performance that scales efficiently, providing significant performance gains for multi-node and multi model applications. The scalability of Celestial AI’s accelerator architecture enables an efficient and performant mapping of data and compute over a broad range of ML model types without the need for complex software optimizations. Celestial AI’s competitive advantage will further grow over time as ML models continue to increase in complexity and size.

Celestial AI has assembled a highly experienced team of industry leaders who have a track record of building multiple successful technology businesses. The company’s Orion AI accelerator products serve an addressable market that is projected by Omida to exceed $70 billion in 2025

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