Hey, I'm Leo Alvarenga!

I am a Software Engineer

Ibuildandscale complex , data-heavy applicationsfromthe terminal tothe cloud

Blog

> Experience

Software Engineer @FITec Labs

Aug, 2025 - Present
Belo Horizonte, Brazil
fitec.org.br

Implementation 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.

TypeScript React.js TailwindCSS Storybook.js PostgreSQL Bash Docker Kubernetes Helm

Front-end Software Engineer (React/TypeScript) @Vetta

Mar, 2023 - Jul, 2025
Belo Horizonte, Brazil
vetta.digital

Development 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.

TypeScript React.js Antd styled-components Storybook.js PostgreSQL Bash Node.js Express

> Skills

leo-alvarenga@portfolio: ~/ $ cat skills.txt

// Languages

  • TypeScript
  • JavaScript
  • Lua
  • Bash

// Front-end

  • React.js
  • Next.js
  • Svelte
  • SvelteKit
  • Astro.js
  • Redux
  • TailwindCSS
  • styled-components
  • Vite.js

// Back-end

  • Node.js
  • PostgreSQL
  • Express
  • Nest.js
  • FastAPI
  • Bun
  • Firebase

// DevOps & Cloud

  • Docker
  • Kubernetes
  • Helm
  • Azure DevOps
  • git

// And many more...

> Projects

pi-mono Active

Monorepo for my Pi (AI) Coding Agent packages; Includes Agent-mode switching, permission guards, Hash anchored operations, Agent task list tracking and more

#AI
TypeScript Node.js

To Go Archived

A powerful, lightweight and reliable CLI based to-do tracker capable of serving a web front-end locally

#Front-end#Back-end
HTML CSS JavaScript Go
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Contact me!

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Available for new challenges