👋 Hi, I'm Mario — a full-stack software engineer.
🏗️ Most recently at Code.org, where I built and scaled features serving 100M+ learners across 70+ languages — working across Ruby on Rails, React, TypeScript, and MySQL on AWS.
🧠 Before that, 5 years as a data engineer and researcher in clinical neuroimaging — building MRI processing pipelines, automated QA systems, and contributing to peer-reviewed publications on Parkinson's and Alzheimer's research.
🌱 Currently learning Go and exploring data streaming with Kafka.
💬 I care about accessible software, mission-driven products, and work that has a real person at the end of it.