Hey, I'm Andrés!

+3 years of experience. Systems Engineer specialized in software architecture and scalable web systems.

Work Experience

  1. Lead Infrastructure & Web Engineer

    We Are Solutions, Inc.

    Leading the architecture and maintenance of high-performance web infrastructure. Specialized in Core Web Vitals optimization, advanced security protocols (DMARC, SPF, DKIM), and managing scalable server environments within Google Workspace ecosystems.
  2. Digital Strategy & Web Analytics Specialist

    We Are Solutions, Inc.

    Technical implementation of digital growth strategies. Responsible for data analysis, Conversion Rate Optimization (CRO), and technical configuration of tracking tools. Focused on improving organic visibility through technical SEO and data structuring.

Projects

Ges2l — Multi-tenant Modular ERP Ecosystem

Ges2l — Multi-tenant Modular ERP Ecosystem

  • Postgres
  • Express
  • React
  • Node.js
  • Redis
  • file_type_nginx Nginx
  • TypeScript
A scalable enterprise platform for institutional and financial management. Architected with a Monorepo (Turborepo) using Nginx as a Reverse Proxy to serve specialized SPAs. Features Redis-backed session persistence (HttpOnly cookies) and a complex RBAC engine. Core migration to TypeScript in progress.
Arduino Control Web — PWA for ESP32

Arduino Control Web — PWA for ESP32

  • React
  • Tailwind CSS
Web interface to control an ESP32 via WebSockets. Network optimizations for low latency, Access Point mode and UX focus for real-time control.
Cuello.dev — Personal portfolio

Cuello.dev — Personal portfolio

  • Astro
  • Tailwind CSS
Personal site built with Astro and Tailwind, optimized for performance, accessibility and smooth animations.

About me

I'm Andrés, a Systems Engineer focused on building robust digital products and well-engineered architectures. My approach bridges the gap between modern Full Stack development and a solid foundation in infrastructure management and security.

Currently, I lead the optimization of complex web ecosystems, focusing on critical performance, network security, and enterprise-level workflow automation.

Through projects like Ges2l, I architect high-scalability solutions, implementing technologies such as Redis for data persistence and Nginx for service orchestration, ensuring secure and high-performance final products.

My goal is to provide value to global companies through quality software development and efficient cloud infrastructure management.

Andrés David