Hey, I'm Leo Alvarenga!
From concept to cloud —craftingresponsive, production-ready webapps
> Experience
Software Engineer @FITec Labs
Aug, 2025 - PresentBelo Horizonte, Brazil
fitec.org.brImplementation of Infrastructure as Code (IaC) using Terraform, automating environment provisioning and version control, resulting in a reduction of manual setup time from 4 hours to just 20 minutes; . Development of Helm Charts for deployments in Kubernetes, ensuring standardization and consistent management of services across development, staging, and production environments; . Engineering and optimization of interfaces in React and TypeScript for corporate Geographic Information Systems (GIS), focusing on performance improvements and reducing load times for large data volumes; . Acted as a technical reference in DevOps and Front-end areas, establishing development best practices and ensuring software architecture scalability.
Front-end Software Engineer (React/TypeScript) @Vetta
Mar, 2023 - Jul, 2025Belo Horizonte, Brazil
vetta.digitalDevelopment of Viridis NG, a web application ecosystem focused on optimizing energy and material consumption in the steel industry, serving more than 8 globally scaled industrial plants. Engineering high-performance features and components for the internal Design System, emphasizing standardization and reuse by multiple teams across different projects. Architecture and maintenance of REST APIs with Node.js and Express, including endpoint documentation and the definition of versioning strategies to ensure service integrity. Refactoring and optimization of critical modules, applying design patterns to ensure code scalability and maintainability. Ensuring technical parity and international collaboration, acting at the interface between complex industrial requirements and the delivery of high-availability software.
> Skills
- HTML
- CSS
- JavaScript
- TypeScript
- Vite.js
- Vitest
- React.js
- Redux
- Next.js
- Svelte
- Astro.js
- SvelteKit
- MUI
- styled-components
- TailwindCSS
- Jest
- Lua
- Go
- Bun
- Node.js
- Express
- Nest.js
- PostgreSQL
- Docker
- Bash
- Kubernetes
- Helm
- Azure DevOps
- Firebase
- git
- Python
- FastAPI
> Projects
leoalvarenga.dev Active
Latest version of my personal web page, made using Astro.js
Calculadora CR Archived
A simple CR & CRA (brazilian GPA counterpart) calculator
Guia do universitário Archived
A simple MERN stack blog that aims at providing relevant info to uni students
To Go Archived
A powerful, lightweight and reliable CLI based to-do tracker capable of serving a web front-end locally
svelte-leoalvarenga.dev Archived
Reworked version of my personal web page using SvelteKit (1.20)
bej Archived
A small and dead simple web app template based on an API Rest built using Bun and ElysiaJS that serves static pages with internalization without overhead.