Blog/Jeff Rasley

Jeff Rasley

Senior Software Engineer

Jeff Rasley is a Senior Engineer on the Snowflake AI Research Team, specializing in AI systems optimization and infrastructure. Previously, he spent five years at Microsoft, where he co-founded the DeepSpeed training and inference library. As its top contributor, Jeff played a key role in establishing DeepSpeed as an industry-standard library. He earned his Ph.D. in distributed systems from Brown University.

Aug 27, 2026Machine Learning

Semi-Persistence: Blazing-Fast Model Swapping for Complex Scheduling

Mert Hidayetoglu +4

Feb 2, 2026Machine Learning

From General-Purpose to Domain Expert: Fine-Tune LLMs Directly in Snowflake

Arctic Long Sequence Training (ALST): Scalable And Efficient Training For Multi-Million Token Sequences

May 29, 2025Gen AI

Arctic Inference with Shift Parallelism: The Fastest Open Source Inference System for Enterprise AI

Samyam Rajbhandari +8

Apr 3, 2025Gen AI

Low-Latency and High-Throughput Inference for Long Context with Sequence Parallelism (aka Arctic Ulysses)

Mert Hidayetoglu +5

Jan 16, 2025Product and Technology

SwiftKV from Snowflake AI Research Reduces Inference Costs of Meta Llama LLMs up to 75% on Cortex AI

Harshal Pimpalkhute

Harshal Pimpalkhute +4