Mariana Meireles
Research Fellow at The Collective Intelligence Project
Berlin, Germany
Summary
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Rockstar🎓
Top SchoolMariana Meireles is a researcher and software engineer with a decade of experience building open-source tools that bridge research and production, currently based in Berlin and working on morality, representation learning, and cooperative AI. She has shipped full-stack contributions to notable projects like PyScript and Jupyter widgets and improved core package-manager internals in mamba/micromamba, demonstrating fluency across Python, C++, WASM, and backend systems. Her work at institutions from Max Planck to the University of Toronto and CHAI blends ontology-driven graph databases, GNNs, and LLM interfaces to make complex biological and alignment research more interactive and FAIR. A seasoned community builder, she helped found cross-project protocols for Python in the browser and mentors underrepresented developers through Women of Color Code and NumFOCUS initiatives. She combines a poetic, human-centered outlook with rigorous engineering—frequently focusing on usability, reproducibility, and privacy in agentic browsing—so her outputs emphasize both technical correctness and real-world accessibility.
10 years of coding experience
5 years of employment as a software developer
MicroMasters Program in Data, Economics, and Development Policy Applied Economics, MicroMasters Program in Data, Economics, and Development Policy Applied Economics at Massachusetts Institute of TechnologyBachelor’s Degree Electrical and Electronics Engineering, Bachelor’s Degree Electrical and Electronics Engineering at Universidade Federal de Minas GeraisStudent, Student at AI Safety Fundamentals
English, Portuguese, German, Spanish
Stackoverflow
353reputation
4kreached
9answers
1question
Github Skills (20)
javascript10
c-language10
python10
package-management10
conda10
ipywidgets10
front-end-development10
html10
jupyter-notebook10
cprogramming-language10
wasm-pack9
rust-wasm9
regular-expression9
testing8
graph6
Programming languages (23)
Github contributions (5)
pyscript/pyscript
May 2022 - Jan 2023
An open source platform for Python in the browser. https://pyscript.net Docs: https://docs.pyscript.net/ Try it: https://pyscript.com/ Community: https://discord.gg/HxvBtukrg2
Role in this project:
Full-stack Developer
Full-stack DeveloperContributions:182 reviews, 19 commits, 104 PRs in 7 months
Contributions summary:Mariana primarily contributed to fixing bugs and improving the PyScript platform's functionality and user experience. Their work included correcting import links, resolving favicon-related issues, and modifying code to accommodate output display changes. They also addressed issues within the REPL environment and made structural changes to directory organization. These changes focused on enhancing existing features and improving the overall usability of the PyScript platform.
pythonjavascriptwasm
jupyter-widgets/tutorial
Jun 2021 - Jul 2022
A tutorial for widgets
Role in this project:Full-stack Developer
Full-stack DeveloperContributions:4 reviews, 25 commits, 15 PRs in 1 year 1 month
Contributions summary:Mariana's commits primarily focus on creating and improving interactive graph visualizations within Jupyter notebooks. The contributions include implementing features using `ipycytoscape`, `ipygany`, and `ipywidgets`, adding styling and interactive elements. The user also addressed comments and made minor fixes, indicating a focus on usability and code quality within the context of widget-based tutorials.
widgetjupyterlab-extensionipywidgetsjupyter-widgetjupyter
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