About
Building products and sharing the work.
I’m Juan, a Brazilian software developer focused on AI, SaaS, automation and useful software for real business problems.
I work across the full path from understanding a problem to shaping, designing and implementing the software around it.
Through NorthCore Systems, I’m building products, experimenting with ideas and occasionally collaborating with companies on projects.
This site is where I share the products, decisions, mistakes and lessons behind that work.
How I work
Evidence before claims
I'd rather show what exists than describe what I intend to build.
Build around real problems
Every product starts from an operation, a client or a concrete need — not an idea in isolation.
Ship, operate, learn, iterate
Software gets stronger after it meets real use, not before.
Current focus
Products in progress
Useful systems, with stage and limits kept visible.
AI / Automation
Workflows that reduce sorting and manual work.
Public record
Decisions and lessons shared while the work moves.