> ## Documentation Index
> Fetch the complete documentation index at: https://me.miltonials.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Experience & Education

> Milton Barrera's professional experience, education and certifications — Data Scientist at TekDatum, Computer Engineering from TEC, and Harvard's CS50 AI certificate.

A résumé-style summary of my background. For the projects behind it, see [Projects](/projects/linux-kernel) and my [GitHub](https://github.com/miltonials).

## Experience

### TekDatum, Inc. — *Full-time · 1 yr 2 mos*

<Card title="Data Scientist" icon="chart-line">
  **Nov 2025 – Present**

  Building and improving AI systems, with a focus on **Retrieval-Augmented Generation (RAG)** — integrating large-scale knowledge bases with generative models.

  `Python` · `RAG` · `AI systems`
</Card>

<Card title="Data Science Intern" icon="seedling">
  **Jun 2025 – Nov 2025 · 6 mos**

  Actively involved in the development and enhancement of AI systems, contributing to the design and implementation of **RAG models** that integrate large-scale knowledge bases with generative AI. Converted to a full-time Data Scientist role.
</Card>

### Fundación Tecnológica de Costa Rica (FUNDATEC) — *Part-time*

<Card title="Data Mining & Business Intelligence Assistant" icon="database">
  **Jun 2023 – Feb 2026 · 2 yrs 9 mos · Costa Rica**

  Assistant in data mining and business intelligence courses. Work included **ETL process revision** with Microsoft SQL Server Integration Services and **data visualization** with R and Tableau.

  `ETL / SSIS` · `Tableau` · `R` · `Data mining`
</Card>

### Tecnológico de Costa Rica (TEC) — *Part-time · 4 yrs 1 mo*

<Card title="Rectory Assistant — &#x22;Live Learning&#x22; Program" icon="chalkboard-user">
  **Feb 2025 – Jul 2025 · 6 mos · Costa Rica · On-site**

  Validated equipment configuration to establish communication between the regional and central campuses during introductory programming classes, and assisted students with course consultations.

  `Python` · `Technical assistance`
</Card>

<Card title="Special Assistant to the Vice-Rectorate of Research & Extension" icon="map-location-dot">
  **Oct 2024 – Jul 2025 · 10 mos · Hybrid**

  **OSMTracker maintenance partner** at the Laboratorio Experimental (labexp). OSMTracker is an Android open-source GPS tracking app for OpenStreetMap with **over 50,000 downloads on Google Play** — I adapt and maintain it. → [More on this work](/projects/osmtracker)

  `Spatial data` · `Java` · `Open source`

  <br />

  [GitHub — labexp/osmtracker-android](https://github.com/labexp/osmtracker-android)
</Card>

<Card title="University Teaching Assistant" icon="graduation-cap">
  **Jul 2021 – Nov 2024 · 3 yrs 5 mos · Costa Rica · Hybrid**

  Supported courses including **Databases, Operating Systems, Introduction to Programming, and Programming Workshop** — reviewing and debugging student code and helping students through the material.

  `Python` · `Databases` · `Operating systems` · `Teaching`
</Card>

## Education

<Card title="Tecnológico de Costa Rica (TEC)" icon="graduation-cap">
  **Bachelor of Engineering (BE), Computing / Computational Science**
  **Feb 2021 – Feb 2026**

  * **Honorary Scholarship**, 2022
  * Graduation project: [MILRI](/projects/milri), a PWA for schools

  `JavaScript` · `Python`
</Card>

## Licenses & Certifications

<CardGroup cols={2}>
  <Card title="CS50's Introduction to Artificial Intelligence" icon="robot">
    **Harvard University** · Issued Feb 2025

    Artificial Intelligence, TensorFlow, and more.
  </Card>

  <Card title="GitHub Foundations" icon="github">
    **GitHub** · Issued Jul 2024 · Valid through Jul 2027
  </Card>
</CardGroup>

<Note>
  These are two of **8 certifications** — see the full list on [LinkedIn](https://www.linkedin.com/in/miltonials/).
</Note>

## Courses

<Card title="Costa Rica Big Data School 2023" icon="chart-column">
  **CeNAT** (National Center for High Technology) · associated with the Tecnológico de Costa Rica
</Card>

## Languages

| Language    | Proficiency                      |
| ----------- | -------------------------------- |
| **Spanish** | Native / bilingual               |
| **English** | Professional working proficiency |