Projects

Systems built to last

Three products, three different constraints — regulation, hardware, and operational process. Each one has its own case study: problem, architecture, decisions, mistakes, and result.

In development

Veridico

Invoicing infrastructure built for VeriFactu, not adapted to it. An append-only ledger, corrections through compensating entries rather than edits — that's what makes the audit trail real instead of cosmetic.

Electron JavaScript VeriFactu

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In development

SON Identity

NFC-based identity and networking. The physical card carries no data — it's a pointer. Identity, profile, and history live entirely server-side, with the account model designed for teams from day one.

NFC SaaS Subscriptions

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In production

Automation Systems

A tax rule engine separated from document generation, so a regulation change doesn't force touching the output code. In internal production since its first deployment.

Python Automation REST APIs

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Earlier in my path, I built and rebuilt digital presence for real operating businesses — a 30-year construction company and a family services business among them. That part of the story is on About.