$ // full_stack_developer
Building scalablesystems that actually perform
Full-stack engineer with 8+ years of experience delivering high-performance SaaS platforms, real-time systems, and financial solutions using Node.js, React, and cloud-native architectures.
[01]
Tellin
A platform for creating personalized, interactive digital gifts — combining photos, music, games, and a letter into a single shareable-link experience. Next.js frontend with a Node.js + Express backend, PostgreSQL, Redis, and asynchronous job queues powered by BullMQ.
[02]
Tatame
A fullstack app for managing jiu-jitsu gyms, with a React Native + Expo mobile client, Node.js + Express backend, and PostgreSQL database. It's now live in production, serving real customers.
[03]
Lo-fi Focus
A study and focus app with a Pomodoro timer, task list, and lo-fi music player.
[04]
DevRoast
A Next.js app built with TypeScript and Tailwind that analyzes user-submitted code with AI, delivering humorous feedback, technical critiques, and improvement suggestions.
$ whoami
Jeremias Santos
Full Stack Developer
I am a full-stack software engineer with over 8 years of experience developing scalable, high-performance systems. I have worked across sectors such as fintech, healthcare, and music technology, building efficient solutions for complex problems. I have strong experience with Node.js, TypeScript, React, and distributed systems architecture, and I also contribute to building SaaS platforms used by thousands of users. I value clean code, best practices, and solutions that generate real business impact, always collaborating with the team to evolve the product as a whole.
interested in working together? feel free to reach out through any of the channels below.