All projects

Flutter sales and pre-billing app for Grupo Coagro's sales team: customers, catalog, quotes, orders and targets, reading from the Winthor ERP — in production on Android and web.

Role: Lead developer

800+ test files

Grupo Coagro's WMS in Flutter: inventory, receiving, checking, picking and slotting on Android data collectors, replacing the ERP vendor's app.

Role: Lead developer

~290 test files

Grupo Coagro's agronomic prescription system: a Flutter app for agronomists (desktop and web) and a NestJS API on the Winthor and SIAGRI Oracle databases, with e-signature.

Role: Author and maintainer

~400 test files (app + API)

Counter app for Grupo Coagro's stores: salespeople look up products by barcode, code or description, see prices per price table and branch, build the cart and print labels and the order ticket — backed by an Express/TypeScript API on the Winthor and SIAGRI Oracle databases.

Role: Lead developer

335 API tests (Jest)

Flutter personal-finance app built around your salary: category budgets, expenses, fixed bills and goals. Offline-first, on Supabase with RLS, with an AI assistant that never sees your numbers.

Role: Sole developer

550+ tests, with E2E in CI

Grupo Coagro's warehouse app in Flutter: prints QR address labels (picking and reserve), writes each product's location back to Winthor, and logs stock-outs, batch mismatches and near-expiry items — on Android and web.

Role: Sole developer

• ▹Address labels as PDF with QR codes, 5 per A4 sheet
• ▹Location written back to the ERP
• ▹Flaky network: checks connectivity and retries with timeouts

Grupo Coagro's access-management portal in Angular: managers register employees and choose which apps and which Winthor branches each one can use, on Supabase Auth with RLS and an Edge Function that keeps the service key server-side.

Role: Lead developer

228 tests (Jest + Playwright)

Reusable open-source Flutter component: collapsible, themeable navigation drawer/rail with search, sections, badges, expandable groups and flyouts.

Role: Author and maintainer

160/160 pub points

Lazy Flutter grids whose tiles size themselves: aligned rows that grow to their tallest card, masonry columns, multi-column tiles, paging and jump-to-item.

Role: Author and maintainer

160/160 pub points

Dart CLI that organizes your imports automatically — sorted and grouped by origin (Dart, Flutter, packages, project). Successor to import_sorter, rebuilt for Dart 3+.

Role: Author and maintainer

160/160 pub points

Mental wellness app (Flutter + Supabase): mood & goal tracking, progress charts, guided breathing and WhatsApp integration. Realtime auth & database.

Role: Sole developer

Grupo Coagro's prize-draw campaign platform: salespeople register customers and verify their WhatsApp with a one-time code, cashiers issue coupons for invoiced orders, admins create campaigns and run the draw, and customers follow their own coupons.

Role: Lead developer

• ▹Server-side verification code: 5-minute expiry, 5 attempts
• ▹Auditable draw that never repeats a coupon
• ▹Atomic issuing: each order generates coupons exactly once

Pokédex is a single-page web app that consumes the public PokéAPI to search, browse, and deep-dive into all 1025 Pokémon. Beyond the classic Pokédex, it adds a TCG cards explorer (real trading cards, rarity, and market price), a turn-based team battle mini-game, and a TCG deck builder with analytics and legality checks. The framework-agnostic logic (data services, domain rules, i18n, feature widgets) is shared with the original vanilla build; this branch ports the UI to React 19 + TypeScript (strict). The interface is fully bilingual (PT-BR / EN) — since the PokéAPI has no Portuguese, prose is machine-translated on the fly and cached locally. Ships as an installable PWA with offline support and is deployed on Cloudflare Pages.

Interactive Flutter Web portfolio with clean architecture, provider pattern, magnetic physics, glassmorphism and holographic 3D cards.