I’m a full-stack engineer and technical lead focused on delivering high-performance digital products — from web platforms to automation systems and multi-tenant SaaS applications.

As the founder and principal developer at 3X Web, I build modern solutions using:

• Next.js, React & TypeScript
• Strapi & custom Node.js APIs
• Prisma + MongoDB/PostgreSQL
• React Native (Expo)
• AI-powered automation workflows
• AWS, Google Cloud, Firebase & Linux servers

I also study and research modern web technologies at IFRN, where I explore advanced development practices and intelligent automation patterns.

• Next.js, React, Expo/React Native
• TailwindCSS, ShadCN, Radix UI
• Component-driven UI architecture
• SSR / SSG / ISR, performance tuning

• Node.js (TypeScript), Express, Fastify
• Strapi CMS (v4/v5)
• Prisma ORM (MongoDB, PostgreSQL)
• Authentication (JWT, OAuth, NextAuth)
• API design, webhooks, background jobs

• n8n workflow automation
• LLM integrations (OpenAI APIs)
• Lead processing & business ops automation
• AI-powered chat flows and agents

• AWS, Google Cloud, Firebase
• Linux server administration (Ubuntu, Caddy, Nginx)
• Docker, PM2, GitHub Actions CI/CD
• DNS, networking, Cloudflare Tunnels

I specialize in architecting and developing end-to-end digital systems, including:

• Web applications and dynamic dashboards
• SaaS platforms (multi-tenant, subscription-based)
• Ecommerce systems and integrations
• WordPress plugins & custom solutions
• Business automation systems (n8n / Node.js)
• Mobile apps using Expo / React Native
• High-performance APIs and backend services
• Cloud infrastructure & deployment pipelines

I enjoy solving complex technical challenges and building systems that scale.

• Lead developer for multi-application ecosystems involving dashboards, APIs, automation pipelines, and mobile apps.
• Experience implementing analytics engines, AB testing flows, reward/loyalty systems, and AI-assisted automation tools.
• Strong focus on clean architecture, maintainability, performance, and developer experience.
• Built applications used by businesses across multiple countries and industries.

I’m available for:

• Technical consulting
• Full-stack development
• Architecture planning
• Automation & AI systems
• Cloud engineering & deployments

Due to my academic research schedule, I currently accept project-based and consulting roles only.

• 🇧🇷 99Freelas: https://www.99freelas.com.br/user/3x-web
• 🌍 Freelancer.com: https://www.freelancer.com/u/douglasfullstack

“Thought is the creative force.”