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Maria is a Design Magician & AI Engineer who builds with ethics.

Selected Work
01
QuechuaTok
NLP ·Low-Resource Languages ·Tokenization ·Indigenous AI
PRPE tokenization for Southern Quechua — spoken by 8M people across Peru, Bolivia and Argentina. Achieves fertility 1.7971, outperforming BPE 8k by 6.3%.
Fertility 1.7971→
02
Khipu ML
Unsupervised ML ·UMAP ·HDBSCAN ·Archaeology
ML pipeline applied to 619 catalogued Inka khipus. UMAP+HDBSCAN clustering with silhouette 0.769. Novel finding: colonial collection bias is structurally encoded in the corpus.
Silhouette 0.769→
03
Brain Tumor Classification
Computer Vision ·Deep Learning ·Medical AI ·EfficientNet
EfficientNetB0 model classifying brain tumors from MRI scans. Built end-to-end from data preprocessing to deployment with 92% accuracy.
92% Accuracy→
04
Text Barrier Detector
Accessibility ·NLP ·UX ·Open Source
Tool that analyzes text for accessibility barriers — readability, complexity, cognitive load. Bilingual EN/ES. Live at prose-decoder-bot.vercel.app.
Live Tool→
05
Quechua Audio Enhancement
Speech ·Audio ML ·Quechua ·Low-Resource
Audio enhancement pipeline for Southern Quechua speech data. Part of a broader effort to build NLP infrastructure for underrepresented indigenous languages.
In Progress→
02
About

I'm Maria — a nomad AI engineer and UX designer working at the intersection of human-centered design and machine intelligence. I build ML pipelines, NLP systems, computer vision models, and AI automation workflows with Python and n8n. Member of the Design of Feelings at Harvard University. Building for accessibility and a better world. Based everywhere.

working with AIethics by designaccessibility firstdesign is magic
3+
Years in ML/AI
EU · Asia · LATAM
Based anywhere
CV + NLP
Specializations
Let's work together

Available for conferences, collaborations, and freelance projects. Based everywhere — let's build something that matters.

Say hello.

mcontrerasmalpar@gmail.com
GitHubLinkedInKaggle

Available for freelance · conferences · open source · worldwide