Hi, I'm Kaio

Full Stack Developer specializing in Node.js, Angular, and building scalable systems. | kaiosrosa@gmail.com

I'm a seasoned Full Stack Developer with over 5 years of experience. I thrive on building scalable, efficient web applications from concept to deployment. I specialize in API integration, performance optimization, and clean architecture.

Beyond coding, I mentor students in English, teach programming, and create educational content. I believe in continuous learning, open communication, and taking on complex challenges.

Experience

Full Stack Developer

June 2025 - Present
Luby
  • Improved system reliability and performance by redesigning the caching architecture, reducing server load.
  • Enhanced maintainability and scalability by centralizing reusable logic across critical features.
  • Increased UI performance through refactoring and optimized Angular change detection.
  • Strengthened frontend data persistence by implementing robust offline storage mechanisms.
Angular 16+ NestJS MongoDB Redis

Full Stack Developer

July 2021 - June 2025
Capital Empreendedor
  • Increased productivity of operations team by 20% using effective CRM integration.
  • Reduced processing time by 20% through automated document analysis.
  • Led API integrations with multiple financial institutions to enhance credit approval efficiency by 50%.
Node.js Express GCP Firebase

Web Development Intern

February 2020 - June 2021
motora.ai
  • Reduced manual adjustments by 15% by standardizing real-time event tracking in Driver Analytics.
  • Enhanced user engagement, raising feedback rates by 30% through real-time data visualization improvements.

Education

Master's Degree, Computer Science

Universidade Federal do Espírito Santo (UFES)
October 2024 - December 2026

Bachelor's Degree, Computer Engineering

Universidade Federal do Espírito Santo (UFES)
February 2016 - August 2023

Technician, Information Technology

CEET Vasco Coutinho
2017 - 2019

Skills & Languages

Technologies

Frontend

Angular 2+ NgRx TypeScript JavaScript

Backend

Node.js NestJS Express Microservices

Database & Cloud

MongoDB Redis Firebase GCP

Languages

  • Portuguese: Native
  • English: Advanced / Fluent
  • Spanish: Full Professional
  • French: Limited Working Proficiency

Projects

Exercise Tracker API

Node.js Express SQLite

A backend project where users can seamlessly log and track their daily exercises using robust API endpoints.

View Repository

Random Quote Machine

React HTML/CSS

An interactive frontend application built as part of the freeCodeCamp Front End Libraries Certification to generate inspirational quotes.

View Repository

Credenciamento PPGI

Java

A robust Java-based collegiate system for registering professors within the adapted UFES Graduate Program workflow.

View Repository

Impossible List

An ever-evolving list of epic goals I want to achieve in my life. It's not just a bucket list; it's a list of things I actively want to tackle and update over time.

Professional & Skills

  • Complete my Master's Degree in Computer Science
  • Contribute significantly to an open-source tool
  • Speak at a major developer conference

Languages & Learning

  • Reach conversational fluency in French
  • Complete a 100 Days of Code challenge (completed 6 rounds!)

Health & Fitness

  • Run a half-marathon
  • Learn how to do a muscle-up
  • Consistently meditate for 30 consecutive days