Portfolio

A selection of my work.

My software products, client projects and audiovisual work. Explore the context, technologies and links for each project.

Own platforms

SaaS I build and operate

Restaurants, retail, recruitment and online commerce. Explore the projects, their technologies and current status.

MiseOn

Multi-tenant SaaS · Food service

Live

Restaurant software for orders, stock, service and delivery integrations. I develop the interface and data structure, including visual features with Three.js and Konva.

The problem

Orders arrive through different channels while stock and service need to stay coordinated.

My work

Orders and stock movements in one system, with FIFO inventory, company access controls and integrations with iFood and WhatsApp.

React 19

Three.js / Konva

Supabasek6 Load Testing

Cypress E2EPWA / Offline-first

Tailwind CSSNFC-e

WhatsApp Business API

iFood Orders API

Get started Open the platform ↗

SelectSys Jobs

Bilingual ATS · Brazil → Japan recruitment

Rolling out

Recruitment software for an agency working between Brazil and Japan, including candidate records, document organisation and data exports.

The problem

The team needs to collect candidate information and documents and prepare the forms used in recruitment.

My work

Bilingual forms, document reading with Tesseract.js and PDF.js, and spreadsheet exports. The project connects candidate registration with agency follow-up.

React 19

Tailwind v4

Playwright E2ETesseract OCR & PDF.jsExcelJSZod + TanStackUX/UI Patterns

Get started Open the platform ↗

mercadinhosys

Multi-tenant ERP · Retail & fiscal POS

Live

Retail ERP for sales, stock and data analysis. I use Python and Flask on the backend and analysis libraries to organise business indicators.

The problem

Checking sales, stock and purchases in separate places makes it harder to understand what is happening in the store.

My work

Movement records and reporting with Pandas, Statsmodels and Plotly, including ABC and RFM analysis. Sentry helps investigate errors.

Flask / Python

Pandas + Statsmodels

RedisPlotly DashboardsSentry ObservabilityAdvanced UX

Get started Open the platform ↗View repository ↗

MySuperStore

Headless multi-vendor marketplace

Live

Multi-seller marketplace with Pix and card payments, automatic revenue split, real-time shipping quotes and asynchronous processing.

The problem

A multi-seller store needs to organise its catalogue, calculate shipping and track payment splits.

My work

Automatic revenue split at settlement (Efí Bank), real-time shipping quotes via Melhor Envio, and an async queue with Celery and Redis so checkout never blocks.