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AI & Data Engineer

Production ML systemsand AI automation.

I build infrastructure that ships — document pipelines, LLM agents, data platforms, and full-stack product surfaces.

Client work · research · 10K+ daily requests in production

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Selected work

Featured Projects

Production systems · measurable outcomes · 2024—2026

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Case 01·Client project·April 2025 - Present

EyeNet

Document automation with AI agents, ETL pipelines, and containerized microservices.

0less manual work
0docs processed / week
0daily requests
0extraction accuracy

Architecture · Backend · AI agents · Infra · Deploy

Pythonn8nDockerFastAPIOpenAI+4
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Product
Case 02·Research

COVID-19 Risk Profiles

Clustering 30M+ open health records to surface ICU risk patterns.

0records analyzed
0risk profiles

ML pipeline · Analysis · Dashboard · Next.js

PythonK-MeansFuzzy C-MeansNext.js
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Product
COVID-19 Risk Profiles
Case 03·Analytics product

NYC Ride-Hailing Analytics

Operational dashboards and ML models for Uber/Lyft trip and fare patterns.

0fare prediction
0classification acc.

Data science · Streamlit · ML models · Geospatial viz

StreamlitScikit-learnPythonGeospatial
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Product
NYC Ride-Hailing Analytics
Case 04·Data platform

India Air Quality Intelligence

Cloud ETL consolidating 500+ sensor streams into policy-ready indicators.

0daily records
0IoT sensors

Data engineering · PySpark · Cloud architecture · Analytics

AzurePySparkDatabricksPower BI
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Product
India Air Quality Intelligence

More case studies in the archive

12+ notebooks, experiments, and shipped systems.

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Every project shares one foundation · ML pipelines · data engineering · analytics products · production platforms · Every project shares one foundation · ML pipelines · data engineering · analytics products · production platforms · Every project shares one foundation · ML pipelines · data engineering · analytics products · production platforms · Every project shares one foundation · ML pipelines · data engineering · analytics products · production platforms ·
Capabilities

How I ship systems

Four layers I combine on every engagement — hover or tap to explore each one.

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Working principles

How I think

Three rules I apply on every production system — after the demos are over.

Diego Villagran

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Practical systems, measurable outcomes, production from day one.

Technical stack

Tools in production

Every tool maps to real portfolio work — hover or tap to see where it shows up.

Data science & AI
Infrastructure & cloud
Platform & product
Core tooling

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Contact

Let's work together

Open to AI engineering, data platforms, and full-stack product builds.

Freelance · contract · full-time

Elsewhere
TypographyTypography: Inter & EB Garamond — designed by Rasmus Andersson, Georg Duffner, Rodrigo Fuenzalida
Last deployJun 18, 2026(build)