Hi, I’m Christian Vargas — Software Developer building AI/ML & full‑stack projects.

I love turning everyday issues into tools everyone can use. Below are a few projects I’m proud of.

Selected Projects

A quick tour of work spanning machine learning, voice assistants, and desktop apps.

Apollo Core — Local Smart-Home Hub

Jetson-Nano powered smart-home core that runs a fully local LLM voice assistant and lighting automations. Built for PatriotHacks 2025, Apollo Core keeps all processing inside the home so it stays private and works even without cloud or Wi-Fi.

Jetson Nano llama.cpp / Whisper / Piper Home Assistant + Docker React Native & TypeScript REST APIs

🥈 GridWatch — City Management System

Real-time civic dashboard with agentic AI — heatmap + live incident feed (traffic, outages, safety, environment). Built in 7 hours; 2nd at GDG DevFest DC hackathon.

HTML/CSS/JS Python Agent Development Kit (ADK) Firebase & Google Cloud

Music Recommendation System

Personalized recommender using content‑based filtering and cosine similarity. Built in Python with NumPy, pandas, and scikit‑learn; runs from the command line.

Python NumPy pandas scikit‑learn CLI

🥇 Apollo AI — Alexa Skill

Hackathon‑built Alexa skill that lets you choose an LLM backend (OpenAI/Microsoft/Meta) and chat via voice. Role: prompts, integrations, and change management. Award: 1st Place in the Most Likely to Become a Startup track

HTML/CSS/JS Alexa Skills Kit AWS Lambda React Node.js Voice UI

Password Manager

Desktop app from my IB CS internal assessment using a lightweight MVC design and local file storage. Simple GUI to add, view, and update passwords (learning project; not for production security).

Java Swing MVC Hashing & Encryption

Skills & Tools

Languages, frameworks, and platforms I’ve used.

Java
Python
C
JavaScript/TypeScript
HTML/CSS
React/React Native
Node.js
AWS Lambda
Alexa Skills Kit
OpenAI API
Hashing & Encryption
Git & GitHub

About

Hi! I’m Christian, a software developer who enjoys building practical tools across ML, web, and voice. I’ve been programming for ~6 years and love communicating ideas, learning fast, and shipping clean, maintainable code. Outside of tech you’ll find me at the gym, on a basketball court, or tinkering with new side projects.

Quick facts

  • Interests: AI/ML, cybersecurity, web dev, voice assistants
  • Based in the Washington, D.C. area
  • Open to collaborating on impactful projects

Get in touch

The fastest way to reach me is email. I’m happy to chat about roles, projects, or collaborations.