~ $ whoami

Hi, I'm

I'm an ML infrastructure & training systems engineer at Meta. I build training optimizations for recommendation models — embedding pruning, offloading, and model freshness — using PyTorch, TorchRec, and FBGEMM.

Outside of work, I spend my time playing piano, hitting the slopes in winter, and exploring new countries while capturing it all through photography .

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Experience

Current Role

Senior Software Engineer

Meta / Training Optimizations, TorchRec

Jul 2023 - Present
Menlo Park, CA · Full-time
  • Leading training optimization efforts for Meta's recommendation models, driving $250M+ in annual compute savings.
  • Building embedding pruning, offloading, and model freshness systems enabling frontier-scale training at 100TB.
  • All techniques contributed upstream to the open-source TorchRec and FBGEMM libraries on PyTorch.
Python C++ CUDA PyTorch TorchRec FBGEMM

Software Engineer

Meta / Messenger & Instagram Direct

Feb 2021 - Jul 2023
Menlo Park, CA · Full-time
  • Drove the migration of the entire messaging stack from Django to Hack.
  • Led efficiency initiatives around message rendering resulting in ~1 MW of power savings.
Python Hack Django React

Software Engineer

Meta / Privacy Infrastructure

Jan 2019 - Feb 2021
Menlo Park, CA · Full-time
  • Built a company-wide data classification system enforcing privacy guardrails at infrastructure scale.
  • Designed real-time streaming classification handling all of Meta's inbound and outbound traffic.
Python ML Streaming Data Infra

SWE Intern

Facebook / Instagram Privacy & Security

Jan 2018 - Apr 2018
Menlo Park, CA · Internship
  • Built an Audience Control framework for specifying custom audiences across Instagram interactions and content types.
Python iOS Privacy

SWE Intern

Amazon / AWS Lambda

May 2017 - Dec 2017
Seattle, WA · Internship
  • Implemented Optimistic Concurrency Control for AWS Lambda API, guaranteeing consistency of function update transactions.
Java AWS Distributed Systems
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Education

University of Waterloo

B.S. in Computer Science

Sep 2013 - Aug 2018
Waterloo, Ontario
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Let's Connect

Email

Reach out anytime

jaspershan@gmail.com