FAQ
We answer your questions
What is Sisu4?
Sisu4 stands for Solution Integration System. We are a technology engineering and sales boutique: we solve critical technology problems, scale operations and raise the market value of businesses through exclusive infrastructure.
What are the 4 Us?
They are the four non-negotiable pillars of every delivery: Useful, Unique, Urgent and Ultra-specific.
What services do you offer?
Web systems and apps, web security and infrastructure, n8n automation and training, applied artificial intelligence, and traffic and sales engineering.
Do you build custom systems or use templates?
We design the architecture and systems around each client ecosystem, never rigid templates.
What technologies do you use?
PHP, MySQL and PostgreSQL, Linux servers with Docker, Nginx, OpenLiteSpeed and CyberPanel, automation with n8n and Redis, and artificial intelligence through APIs and local environments.
Do you serve clients in other countries?
Yes. We have clients in Brazil and the United States, and now in Paraguay too, with support in Spanish, Portuguese and English.
How do I get started?
Message us on WhatsApp or use the contact form and we will talk about your operation.