Markelle Roesti
Research Scientist at eBay
Irvine, California, United States
Summary
👤
Senior🎓
Top SchoolMarkelle Roesti is a research scientist with nine years of experience at the intersection of machine learning research and practical system-building, currently focused on making ML models more interpretable, interactive, and accountable. He holds a PhD in Computer Science from UC Irvine and has translated academic insights into industry impact through internships at eBay and Apple, where he investigated LLM bias and hallucinations in production settings. Markelle is an active open-source contributor to Project Jupyter—notably improving JupyterLab’s Table of Contents and cell-tagging UX—bringing full-stack TypeScript/React and Python skills to developer-facing tooling. His work uniquely blends rigorous evaluation methodologies with data-centric engineering, including crafting counterfactual datasets and tooling for interactive model diagnosis. Based in Irvine, CA, he combines deep research rigor with hands-on product sensibility to surface and mitigate real-world model failures.
8 years of coding experience
7 years of employment as a software developer
California Polytechnic State University, San Luis ObispoUniversity of California, Irvine
Github Skills (15)
css10
uid10
typescript10
javascript10
typescripts10
jupyterlab-extension10
front-end-development10
ui-design10
jupyterlab10
jupyter10
react10
typescript-types10
markdown-it9
markdown9
html8
Programming languages (6)
Github contributions (5)
jupyterlab/jupyterlab-toc
Jul 2018 - Jan 2019
Table of Contents extension for JupyterLab
Role in this project:
Full-stack Developer
Full-stack DeveloperContributions:89 commits, 6 PRs, 12 comments in 6 months
Contributions summary:Markelle primarily contributed to the development of a table of contents (TOC) extension for JupyterLab. Their work involved implementing features such as collapsing/expanding TOC entries and integrating code cell rendering. The user made changes to the React-based frontend, adding code cell and markdown text rendering, and also worked on the backend logic to generate the TOC from the notebook content. The contributions encompass both UI and component generation.
jupyterlab-extensiontable-of-contentsjupyterlabjupytercontents
jupyterlab/jupyterlab
Jul 2018 - Apr 2020
JupyterLab computational environment.
Role in this project:Front-end Developer
Front-end DeveloperContributions:119 commits, 8 PRs, 16 comments in 1 year 9 months
Contributions summary:Markelle primarily contributed to the JupyterLab user interface, focusing on the Table of Contents (TOC) component. Their work involved implementing and refining features like code cell display, adding tag functionality, and incorporating visual elements (icons and styling) for a more user-friendly experience. The commits also included adjustments to the dropdown menu and modifications to support toggling of code cells. Furthermore, the user refactored existing code and made bug fixes.
jupyterlab-extensionjupyterlabjupyter-widgetjupytercomputational
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