I’ve moved between code, product decisions, operations, and the uncomfortable conversations that make a company better. The common thread is taking an unclear problem and carrying it all the way to something people can use.
══[ THE PATH SO FAR · NEWEST FIRST ]════════════════════════════════════════════════════════════════════════════════════════════════
▌ 2026 — present
Founding engineer · product, design & brand
································································································Sep 2026 — presentStealth Startup
Building an early-stage consumer platform end to end — project management, development, design and branding — and owning everything that touches money.
- ·Accounting and bookkeeping: specified and built the ledger, with linked registers, reversal rules, daily control totals and reconciliation.
- ·Money in and out: card and crypto payment providers with signed webhooks and idempotent requests, digital-item payment and delivery rails, withdrawals with holds and staff review.
- ·Affiliate commissions, promo codes, cashback and treasury exposure as versioned policies, plus a payment-provider simulator (hosted and transparent checkout, refunds, chargebacks, webhook replay) so every money path is tested before it is real.
- ·Bun, Elysia, Drizzle, PostgreSQL and a transactional job outbox; React 19 on a token-based design system; Kubernetes with WAL-G backups.
- ·Project management and brand: specs, backlog, decision register, PR reviews and engineering handoffs; the visual identity and design system.
▌ 2025 — 2026
Vue.js frontend developer
································································································Aug 2025 — Mar 2026SlidesWith.com
Live presentation platform — legacy Nuxt (Vue 2), GraphQL/Apollo, +25% test coverage, async remote team.
▌ 2021 — 2026
Founder & founding engineer
································································································May 2021 — Apr 2024TIPA.ai
Pix donations and live engagement for streamers, podcasts and creator communities. MVP shipped in 4 days, then scaled to 200k+ users at peak.
- ·Pix donation pages and creator profiles: one link, a message from the fan, an alert on stream.
- ·Customizable live alerts (message, sound, GIF, font, transitions), plus widgets and apps for Twitch, YouTube Live, Trovo and Kick.
- ·TIPA Subs monthly contributions with Discord integration.
- ·Rails + Vue + PostgreSQL APIs, background jobs and realtime event pipelines for high-frequency interactions.
Founder & CEO · founding engineer
································································································Aug 2022 — Jan 2026pixta.me
Event ticketing and cultural media, built from scratch to 300k+ monthly active users.
- ·Event discovery and checkout, producer dashboard and event publishing, mobile apps for finding and managing events.
- ·Ruby on Rails platform with PIX and card payments, reconciliation, refunds and producer payouts.
- ·Kubernetes production infrastructure built for high-concurrency on-sales.
- ·Also the company's main content producer: editorial, interviews, video and social.
▌ 2014 — 2021
CTO / Cofounder
································································································Dec 2014 — Jan 2016Encontre um Nerd
From freelancer to cofounder; scaled the team and operations serving 30k+ technicians across Brazil.
CTO on demand / Ruby on Rails consultancy
································································································Feb 2016 — Jan 2019Luztr
Product lifecycle from MVP to scale; Rails 2 → 5 migration in production; expansion from Brazil to France.
CTO / Cofounder
································································································Apr 2019 — Jan 2021Smartpills
IoT health — a device for adherence to continuous-use medications (e.g. contraceptives). APIs and Android/iOS apps that talk to the device over BLE, transparently and automatically.
▌ 2009 — 2014
Lead PHP Developer
································································································Aug 2009 — Jan 2011eCompleto
Multi-tenancy eCommerce SaaS — owned fixes and evolution in a complex platform.
C# / Backbone.js / Ruby on Rails Developer
································································································Jan 2011 — Dec 2013ateliware
Insurance product for a major Brazilian bank — Backbone.js front, C# backend and integrations.
▌ Concurrent — consultancy
Ruby on Rails developer / consultancy
································································································May 2014 — Jun 2024LOCOMOTIVA.info
- ·Delivered full-stack apps for 30+ clients (esports, edtech, healthtech).
- ·Rails 3 → 7/8 upgrades, Webpacker → Vite, data migrations with minimal downtime.
══[ SKILLS ]════════════════════════════════════════════════════════════════════════════════════════════════
The tools are only useful when they solve the right problem.
Rails at the core, with enough range to own the edges.
- Languages
- Ruby, JavaScript, TypeScript, C#, SQL
- Frameworks
- Ruby on Rails, Vue.js, Nuxt.js, Node.js
- Infrastructure
- Kubernetes, Docker, Docker Swarm
- Databases
- PostgreSQL, Redis, Elasticsearch, MySQL
- Tools
- Git, Cypress, Vite, webpack
- Testing
- RSpec, Cypress
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I'm open to the right full-time role, contract, or advisory work. Get in touch by email.
► teams with real users, hard problems, and room to take ownership.
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