Jędrzej Maczan

Hi, I'm Jędrzej Maczan

I do artificial intelligence research

GitHub | Google Scholar | Twitter | ORCID

Publications

2026-11-29
Inference Everywhere with torch-webgpu: A Portable, Open-Source PyTorch Backend for Distributing Inference Across Heterogeneous Edge Devices
DAI 2026 Industry Track
City University of Hong Kong, Hong Kong
Open source
2026-10-21
Understanding High-Performance Large Language Model Inference
IEEE Computing in Science & Engineering, Vol. 28, Issue 3, pages 121-127
DOI
2026-10-17
Memory-Efficient Activation Checkpointing with Sliding Window and Hirschberg's Algorithm for 0/1 Knapsack Solving in PyTorch
INLG 2026 First Workshop for Industrial NLP
Utrecht University, Netherlands
Workshop
Also presented in COLM 2026 Efficient Reasoning and Fast ML 2026
2026-10-09
Measuring and Reducing WebGPU Dispatch Overhead for LLM Inference
COLM 2026 Workshop on Methods and Opportunities at Small Scale (MOSS)
San Francisco, USA
OpenReview
Also presented in COLM 2026 Efficient Reasoning
2026-09-14
"As a Language Model...": Chat Template Switches LLM Self-Referential Voice and Activation Steering Reproduces It
KONVENS 2026 First Workshop on Evaluating LLMs for Specialized Domains (Eval4SD)
University of Hamburg, Germany
OpenReview
Also presented in COLM 2026 Efficient Reasoning

Education

2026 - now
Master of Science in Artificial Intelligence
University of Colorado Boulder
2014 - 2017
Bachelor of Science in Computer Science
Wrocław University of Science and Technology

Work

2024 - now
Lead AI/ML Engineer
DNV
2019 - 2023
Senior Software Engineer
DNV
2017 - 2018
Intern / Junior Software Engineer
Capgemini

Talks

2026-06-05
Online Softmax
Cohere Labs - Open Science ML Math Community

Articles

2026-07-27
The cuBLAS transposition trick
Paged Out!, Issue #9, page 14
Open source
2026-05-29
From Boltzmann-Gibbs distribution to numerically stable online softmax on GPU with proofs
2026-02-19
Solving 0/1 Knapsack problem with sliding window and Hirschberg algorithm
Paged Out!, Issue #8, page 8
Open source
2025-11-21
Use 20x less peak RAM with dp_knapsack_sliding_hirschberg, a new activation memory budget solver for PyTorch
Open source
2025-10-01
Self-contained handwritten digit recognizer
Paged Out!, Issue #7, page 11
Open source
2025-03-01
A primer on Differentiable Architecture Search
Paged Out!, Issue #6, page 5
Open source
2024-12-01
GPT in PyTorch
Paged Out!, Issue #5, page 6
Open source
2024-06-01
Building automated machine learning with type inference
Paged Out!, Issue #4, page 4
Open source

About me

I like computers!

I want to be a full time research scientist and work on the intersection of math, AI and low-level systems
My name is spelled as yenjay in English and 延杰 in Chinese
Email: jedrzej@maczan.pl
Art of Anita: anitamaczan.pl, instagram: @anita_maczan
Other links (not very active):
- Mastodon: mathstodon.xyz/@jmaczan
- LinkedIn: click
- X/Twitter: @jedmaczan
- HackTheBox: @7563687575 (inactive, had fun some time ago)

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