Manuel Erazo

Hi, I'm Manuel Erazo!

Web & AI Developer focused on
Freelance & SaaS.

Open to work
Get in touch

Building products that are fast, beautiful, and built to last. Let's create something great together.

What I've Done

Web Developer
2025 · Smurfit Kappa Cartón Colombia
Participant - Mistral Worldwide Hackathon
Feb 2026 · Mistral AI x Weights & Biases x NVIDIA
Freelance Web Developer
2023 - Present · Freelance / Academic Projects
CEO & Founder of GymRat+
2024 - Present · GymRat+ - SaaS para Gimnasios
Computer Science Student
2021 - 2026 · Fundación Universitaria de Popayán

Things I've Built

6 projects · click to explore

Tools I Use

Frontend
React Next.js Astro TypeScript JavaScript Tailwind Flutter Dart Motion
Backend
Node.js Python Bun
Database
PostgreSQL MySQL Prisma MongoDB
Tools
Git Figma Docker Postman Vercel Redis MercadoPago Google Cloud Meta Ads
AI & LLMs
OpenAI Gemini Anthropic Anthropic Mistral Claude Kimi ModelContextProtocol MCP n8n Ollama
Popayán, Colombia
POPAYÁN
COLOMBIA

How I Work

1 Discovery Call

In the first stage, we'll have a Discovery Call to discuss your goals, needs, and project requirements.

GymRat+

GymRat+

A SaaS platform for comprehensive gym management. Handle memberships, monitor attendance, process payments via MercadoPago, and access a real-time metrics dashboard — built for modern gym operators.

Tech Stack

Next.js TypeScript Prisma PostgreSQL MercadoPago

Features

  • Membership and plan management
  • Attendance and access control
  • Integrated payments via MercadoPago
  • Real-time analytics dashboard
  • Automated notifications
sira

sira

A conversational AI assistant powered by OpenAI and cutting-edge models. Manages conversation context, supports multiple flows, and connects external tools via MCP to automate complex tasks.

Tech Stack

Next.js TypeScript OpenAI MCP Tailwind CSS

Features

  • Context-aware conversations with memory
  • Integration with OpenAI, Claude, and Gemini
  • Tool support via MCP protocol
  • Real-time response streaming
  • Clean and minimalist interface
hinomaru

hinomaru

A comprehensive business management system with modules for inventory, invoicing, customers, and reporting. Designed for fast onboarding and effortless daily operation with a modern, fluid interface.

Tech Stack

Next.js TypeScript Prisma PostgreSQL Tailwind CSS

Features

  • Real-time inventory management
  • Integrated billing and payments
  • Basic CRM with customer history
  • Business reports and analytics
  • Multi-branch and user roles
heyMed

heyMed

A digital health platform connecting patients with medical professionals for virtual consultations, appointment management, and clinical history tracking — built with the highest data privacy standards.

Tech Stack

Next.js TypeScript Prisma PostgreSQL Tailwind CSS

Features

  • Virtual consultations with video call
  • Appointment management and reminders
  • Secure patient clinical history
  • Doctor control panel
  • Automated notifications and alerts
ButterflyAR

ButterflyAR

An educational augmented reality app that brings butterfly species to life in 3D. Combines ARCore and ARKit for an immersive cross-platform experience that merges learning and technology.

Tech Stack

Flutter ARCore ARKit Dart

Features

  • AR visualization of butterfly species
  • High-fidelity interactive 3D models
  • Educational content with facts and trivia
  • Species identification via camera
  • Cross-platform support (iOS & Android)
QR Attendance

QR Attendance

An attendance management system using QR codes for quick check-ins in educational institutions. Offers real-time tracking, separate dashboards for students and teachers, and exportable reports.

Tech Stack

Next.js React Node.js MongoDB QR Code API

Features

  • QR code generation per class
  • Real-time attendance tracking
  • Separate dashboards for students and teachers
  • Exportable reports and analytics
  • Email notifications