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About

Building clear AI and data-driven systems with strong product judgment.

I'm Juan Sebastian Peña, a Colombian builder based in Madrid, pursuing a degree in Computer Science and Artificial Intelligence. I design and build AI- and data-driven systems with a strong focus on clarity, explainability, and product intent—because technical excellence only matters when people can understand, trust, and act on it in real contexts.

Outside of work, salsa and bachata shape how I think about adaptability, collaboration, and connection.

Now
Madrid
Focus
Software · AI · Product
Values
Human-centered · Systems-minded
Portrait of Sebastian Peña
Download CVContact me

Skills

SOFTWAREENGINEERING
FRONTEND& PRODUCTUI
DATA& ML
DATABASES
CLOUD &DEVOPS
AUTOMATION& SCRIPTING

Skills

  • C++
  • Git
  • GitHub
  • Java
  • JavaScript
  • Python
  • REST APIs
  • TypeScript
  • Bash
  • C
  • CMake
  • Git Bash
  • GitHub Actions
  • LaTeX
  • PowerShell
  • YAML
  • CSS
  • Figma
  • HTML
  • React
  • Tailwind CSS
  • Creative Cloud
  • Illustrator
  • Lightroom
  • Photoshop
  • Premiere
  • Prettier
  • Hugging Face
  • OpenAI
  • Pandas
  • PyTorch
  • scikit-learn
  • Apache Spark
  • DeepSeek
  • Gemini
  • Gensim
  • NumPy
  • Ollama
  • OpenCV
  • OpenAI API
  • spaCy
  • TensorFlow
  • MySQL
  • PostgreSQL
  • Redis
  • MongoDB
  • SQLite
  • AWS
  • Azure
  • Docker
  • Kubernetes
  • Terraform
  • Ansible
  • Cloudflare
  • Grafana
  • Linux
  • Nginx
  • Prometheus
  • FastAPI
  • Node.js
  • Playwright
  • Django
  • Flask
  • pytest
  • Selenium
  • Streamlit

Projects

Selected work across personal builds, startups, and enterprise problems.

PersonalPrototype
QR-Forge

Custom QR generator with SVG/PNG export and design controls.

Next.jsTypeScriptTailwindCanvas/SVG
GitHubCase Study
EnterprisePaused
Lost & Found Platform

Institutional lost & found system with realtime chat and role-based access.

Next.jsNode.jsPostgreSQLWebSocketsRedis
GitHubCase Study
HackathonPrototype
Legal Document Translator

Translator for legal documents with structured output.

PythonFastAPINext.jsOpenAI API
GitHubCase Study
StartupIn progress
Predictive Content Intelligence

Predictive intelligence for social media content performance.

Next.jsTypeScriptSupabasePythonAirflow
GitHubCase Study
PersonalPrototype
QR-Forge

Custom QR generator with SVG/PNG export and design controls.

Next.jsTypeScriptTailwindCanvas/SVG
GitHubCase Study
EnterprisePaused
Lost & Found Platform

Institutional lost & found system with realtime chat and role-based access.

Next.jsNode.jsPostgreSQLWebSocketsRedis
GitHubCase Study
HackathonPrototype
Legal Document Translator

Translator for legal documents with structured output.

PythonFastAPINext.jsOpenAI API
GitHubCase Study
StartupIn progress
Predictive Content Intelligence

Predictive intelligence for social media content performance.

Next.jsTypeScriptSupabasePythonAirflow
GitHubCase Study
PersonalPrototype
QR-Forge

Custom QR generator with SVG/PNG export and design controls.

Next.jsTypeScriptTailwindCanvas/SVG
GitHubCase Study
EnterprisePaused
Lost & Found Platform

Institutional lost & found system with realtime chat and role-based access.

Next.jsNode.jsPostgreSQLWebSocketsRedis
GitHubCase Study
HackathonPrototype
Legal Document Translator

Translator for legal documents with structured output.

PythonFastAPINext.jsOpenAI API
GitHubCase Study
StartupIn progress
Predictive Content Intelligence

Predictive intelligence for social media content performance.

Next.jsTypeScriptSupabasePythonAirflow
GitHubCase Study

Contact

Let's talk.

Reach out for collaborations, product conversations, or quick questions.

Email meLinkedIn