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Lesther Ruiz

Principal Software Engineer

🇵🇷 Puerto Rico

14+ years building scalable full-stack applications. Passionate about clean architecture, developer experience, and sharing knowledge through content.

14+

Years Exp

50+

Projects

∞

Coffee

Contact Me

Latest Posts

New

Object-Oriented Programming done wrong

Jan 21

Object-Oriented Programming

Jan 15

View all posts

Tutorials

Coming Soon

Video tutorials on software engineering, architecture, and best practices.

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Tech Stack

TypeScript

React

Node.js

Docker

PostgreSQL

Azure

Cloudflare

AI/ML

+ JavaScript, Git, Kubernetes, Terraform, and more

Experience

14+ years

May 2024

Principal Software Engineer

Abarca Health LLC

Apr 2023

Lead Software Engineer

Abarca Health LLC

Apr 2020

Team Leader, Software Engineer III

Abarca Health LLC

Career journey: Developer → Team Lead → Principal Engineer

Featured Projects

4 projects

Open Source

API.CoreSetup

Open source NuGet package that simplifies ASP.NET Core API setup with pre-configured JWT authentication and Swagger/OpenAPI docs.

.NET NuGet OAuth2

OP TCG Database

Mobile app for trading card game players with advanced search and filtering.

Flutter Supabase

G.E.M.S.

Website for a non-profit emergency medical services organization in Puerto Rico.

Astro Tailwind

EasyCron

Web-based cron job service for developers with an intuitive interface.

React Tailwind