Multi-tenant ERP
An ERP from scratch (finance, accounting, accounts payable and HR) built to hold more than one client in the same database without leaking a single row between them.
I build AI that works inside the corporate stack
Five years between industrial infrastructure and corporate systems. The messy part where AI actually has to live: legacy databases, auth, permissions, integrations. I write here about what I learn building it.
See the full stack, with where each thing was used →[Proof]
- Estimated 50%+ cut in specification effortInternal AI assistant on Microsoft Copilot · Alliance One
- Tenant isolation that fails closed, not openMulti-tenant ERP · personal project · .NET, PostgreSQL, Terraform
- A full day in Ghidra, and the problem stayed unsolvedReverse engineering a screen-capture protection · written up in full
[Projects]
A truco agent that learns to bluff
A Truco Gaúcho engine in C#, a second engine in Python, and an agent trained by self-play that has to bluff in order to play well, served to a Unity client.
[Experience]
- Alliance One BrasilMay 2024 — present.NET Developer
Proposed and built an internal AI assistant on Microsoft Copilot: it retrieves from the company documentation base (RAG) and generates standardized requirement documents end to end. Power Automate orchestrates it, with Office Scripts and a Word VBA module applying the formatting standard. Estimated 50%+ cut in specification effort. Presented to global leadership in the US.
- Japan Tobacco InternationalFeb 2021 — May 2024IT Infrastructure & Operations Consultant
Diagnosed and eliminated a recurring failure in the processing plant: ruled out the assumed network-coverage cause, isolated the fault to the Bluetooth link between handheld scanners and tablets, and drove testing, firmware validation and homologation of the replacement hardware.
[Latest posts]
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