My projects
A platform for running raffles online. Organizers create their raffle page in under five minutes, share a link, and sell tickets online while the platform handles everything else automatically, with transparent results, multiple payment methods, and real-time statistics.
What it taught me
How to build for high concurrency. Thousands of people can be grabbing tickets at the same moment, so every purchase has to run as a proper transaction. It also taught me a lot about optimization: keeping every open page in sync in real time, with thousands of tickets on screen, without the site ever feeling slow.
A pentesting-as-a-service platform. Teams launch on-demand security scans and code reviews for their apps, websites and APIs, then follow a live report with every finding and how to fix it.
What it taught me
Orchestrating distributed workflows. A single scan fans out into dozens of jobs: different tools and agents running in parallel across serverless functions, each one looking at a piece of the target. Routing that work, handling retries and partial failures, and merging everything back into findings a person can act on turned out to be the real product.
A free app for Secret Santa gift exchanges. Create a group, share a link, and the draw happens on its own. Thousands of people across Latin America have used it to organize their holidays.
What it taught me
What it’s like when growth arrives all at once. In December 2025 more than 10,000 people showed up within a few weeks, all creating exchanges on the same days. I spent that month scaling on the fly, optimizing the hot paths, and learning to read a cloud bill very, very carefully.
Rifacil
