Hi, I am

Leonardo Quarezemin Bagio

Software Development Analyst / Full-Stack Developer

ABOUT ME

Computer Engineer focused on backend and integration. Nearly ten years turning legacy systems into maintainable, scalable ones — from feasibility analysis to production.

FRONTEND

Responsive Interfaces: Creation of fluid screens based on a deep structural understanding of HTML.

Interactivity: Strong command of dynamic manipulation using JavaScript and jQuery.

Vue Ecosystem: Experience in developing scalable components utilizing Vue.js and Vuetify.

BACKEND

Intersystems IRIS: Building robust features for large data volumes and highly scalable functions.

Node.js: Creation of robust APIs and complex integrations using Sequelize.

* Both ecosystems are strictly developed following Clean Code architecture principles.

INTEGRATION

API Development: Creation of robust APIs for integration with external sales and management platforms, such as Mercos, Demander, and third-party systems.

Workflow Automation: Mapping and orchestration of automated synchronization flows.

ARCHITECTURE

Containerization: Primary focus on operating and managing environments using Docker, ensuring process isolation.

EDUCATION

Bachelor's Degree in Computer Engineering

SATC - Associação Beneficente da Indústria Carbonífera de Santa Catarina

Read my Thesis

EXPERIENCE

WebMais SistemasJune 2023 - Present

Software Development Analyst

Mentoring new developers and establishing backend coding standards.
Modernizing legacy systems and transitioning database architectures to eliminate performance bottlenecks.
Conducting technical feasibility analysis and architectural planning for complex custom requirements.
Architecting scalable backend solutions and developing automated integration flows with external platforms.

WebMais SistemasFeb 2019 - June 2023

Software Developer

Developing core ERP features and ensuring system stability through advanced debugging.
Engineering complex database queries to build customized reports and data extraction functions.
Refactoring monolithic codebases to improve maintainability and system execution speed.

PROJECTS

Fullstack Task Manager (MEVN)

A hands-on Fullstack lab: a To-Do list built with the MEVN stack (MongoDB, Express, Vue.js, Node.js), fully containerized with Docker multi-stage builds.

Vue.jsNode.jsMongoDBDocker

View on GitHub

Go REST API

A REST API built in Go to practice the language: user sign-up/login, public and authenticated event routes, and event registration, with JWT-based authentication.

GoREST APIJWT

View on GitHub