Available for new projects

I craft systems that scale and automate

Full-stack developer specializing in AI-powered automations, SaaS platforms, and production-grade systems.

jean@je4ndev.com

Featured Work

Selected projects

NexPanel

LIVE2026 — Present

NexPanel

Complete SaaS management system for IPTV resellers

Next.jsTypeScriptSupabaseTailwind CSSStripe

Clients managed

Monthly revenue

View case study

Vultrix 3D

LIVE2026 — Present

Vultrix 3D

Complete management platform for 3D printing businesses

Next.jsTypeScriptSupabaseTailwind CSS

Projects calculated

View case study

OpenClaw Gateway

LIVE2024 — Present

OpenClaw Gateway

Multi-platform automation gateway with AI-powered workflows

Node.jsOpenAISupabaseTypeScript

View case study

Gestao ML

LIVE2026 — Present

Gestao ML

Order management SaaS for Mercado Livre sellers

Next.jsTypeScriptSupabaseMercado Livre API

Revenue tracked

View case study

$ mepchat status

MepChat

WhatsApp chatbot platform with CNPJ dashboard

Node.jsFirebaseOpenAI

HypeFC

LIVESports Dashboard

HypeFC

Real-time football dashboard with live scores and standings

Next.jsTypeScriptTailwind CSS

Testimonials

What clients say

“Jean delivered an automation solution that transformed our operations. We reduced manual work by 80%.”

R.C.

Rafael Costa

CEO, TechFlow

“Vultrix 3D completely changed how we price our products. Finally a tool made by someone who understands the business.”

A.S.

Amanda Silva

Founder, PrintLab 3D

“The OpenClaw integration was flawless. Jean understands both the technical and business sides perfectly.”

M.O.

Marcos Oliveira

CTO, DataStream

Jean Carlos Vargas

10+ years

About

Jean Carlos Vargas

Full-stack developer and Founder of Vultrix 3D. Building production systems for over 10 years — from SaaS platforms to AI-powered bots, API integrations, smart contracts, and automation pipelines. Based in Paranavaí, Brazil, working globally.

Next.js

TypeScript

Supabase

Node.js

OpenAI

React

GitHub LinkedIn

Tech Stack

Tools I work with

Frontend

Next.js

React

TypeScript

Tailwind CSS

Backend

Node.js

Python

Express.js

Database

Supabase

Firebase

PostgreSQL

AI & Automation

OpenAI

LangChain

CCXT

DevOps

Docker

Vercel

GitHub Actions

Tools

Git

VS Code

Figma

Services

What I offer

Web Applications

Full-stack apps with Next.js, React, and modern frameworks

SaaS Platforms

Scalable systems with auth, billing, and admin panels

AI Automations

Intelligent bots, workflows, and integrations with OpenAI

API Integrations

Connect systems, automate processes, sync data

Mobile Apps

Cross-platform apps with FlutterFlow and React Native

Consulting

Technical architecture, code review, and system design

Let's build something extraordinary

Have a project in mind? I'd love to hear about it.

jean@je4ndev.com