I build FullStack web products.

1. Mar 2026 — Apr 2026

   Senior Software Engineer (Full-Stack) · G2i Inc.

   Remote (Contract)

   • Engaged through G2i on two AI-related Next.js projects for a Frontier Labs client, joining both at a late stage and helping land them on time inside a 6-week engagement, in a 7-engineer pnpm monorepo with strict code quality gates.
   • Shipped 50+ production PRs, validated and merged, averaging 3+ a day.
   • Designed the AI-augmented workflow behind that throughput: Claude Code with one dedicated subagent per task so each keeps an isolated context, MCP integration (Git, Linear), and automated PR-review agents. (Project details, client name and internal tooling are under NDA.)

   • Next.js
   • TypeScript
   • AI
   • Claude Code
   • Cursor
   • pnpm
2. Apr 2024 — Mar 2026

   Grupo LW / LW Tecnologia

   Curitiba, Brazil (Hybrid)

   • Co-architected and shipped lwauto.com.br, a B2B vehicle marketplace cataloging 5,000+ vehicles across multiple client portals, working in a Scrum team of 4 engineers + PO + UX designer.
   • Designed and built the public B2B API with Nest.js, Prisma, and MariaDB, including a key-pair authentication middleware with per-client secret keys and an admin-side rotation flow for partner integrations.
   • Standardized WebSockets as the way to register large vehicle spreadsheets: one import carried over 50,000 vehicles while streaming continuous progress updates to a loading component on the frontend, so users could track a dataset that size instead of watching a spinner.
   • Built a synchronized wallet system across a client's users with Server-Sent Events, plus a dedicated hook that let the team consume live balances anywhere in the frontend from a single endpoint. SSE over WebSockets because the flow is one-directional and the operational profile is simpler.
   • Diagnosed and fixed a silent production bug where vehicle photos appeared rotated after JPG→WebP conversion; traced the root cause to stripped EXIF orientation metadata and implemented a metadata-aware rotation step in the pipeline.
   • Designed Nest.js microservices applying hexagonal architecture, data caching, and query optimization for stability under high-concurrency workloads.
   • Built the frontend of lwauto.com.br with Next.js (App Router, SSR/CSR mix), TailwindCSS and TanStack Query across multiple client portals, partnering directly with UX so designs shipped exactly as intended.
   • Started architecting an integration with Brazil's Free Flow tolling system to automate toll payments for fleet vehicles (project continued by the team after my departure).
   • Maintained production systems with Elastic APM and AWS CloudWatch; mentored a junior developer through hands-on React/Hooks/TypeScript pair sessions.

   • Next.js
   • Nest.js
   • TypeScript
   • Prisma
   • MariaDB
   • TailwindCSS
   • TanStack Query
   • Server-Sent Events (SSE)
   • WebSockets
   • Elastic APM
   • AWS CloudWatch
   • Azure DevOps
3. Nov 2021 — Present

   Independent Consultant

   Remote

   • Delivered custom web solutions for clients including Irrigate (irrigate.com.br), modernizing a legacy codebase and bringing an agri-tech business online with a brand-aligned interface.
   • Built and operate BusTrack CWB (bus-routes-app.vercel.app), a free, ad-free real-time public transit tracker for Curitiba: Next.js, Socket.io and React Leaflet over open transit data, running through a self-managed Oracle Cloud proxy I maintain end to end.

   • Next.js
   • React.js
   • TypeScript
   • Node.js
   • Socket.io
   • React Leaflet
4. Jun 2022 — Nov 2023

   Golive Consultoria (SAP Partner)

   Curitiba, Brazil

   • Cut p95 latency on a critical employee-hours reporting endpoint from ~20s to under 3s (~85%) by moving the computation to where the data lives: Node-side aggregation across 6+ MongoDB collections replaced with a native $lookup and computed-stage pipeline.
   • Led delivery of three ERP applications bridging SAP HANA and the SAP Service Layer with React and Next.js interfaces, making enterprise workflows usable outside SAP's own UI. Multi-tenant data isolation was designed in up front, so a single build could be resold instead of forked per customer.
   • Built a reusable React + TailwindCSS component library that became the internal UI standard across the company's applications, so new projects started faster and stayed consistent.
   • Implemented CI/CD pipelines with GitHub Actions, GitLab CI/CD, Firebase, and Heroku, standardizing deployment across the company's projects.
   • Mentored junior developers through code reviews, pair programming, and workshops on TypeScript generics and clean code practices.

   • React.js
   • Next.js
   • Nest.js
   • Node.js
   • TailwindCSS
   • MongoDB
   • SAP HANA
   • SAP Service Layer
   • GitHub Actions
   • GitLab CI/CD
   • Firebase
   • Heroku
5. May 2020 — Apr 2022

   Full-Stack Developer (Intern to Junior) · +A Educação / Imersys

   Remote (Brazil)

   • Built EdTech and marketplace platforms with Vue.js, Nuxt.js, Node.js, PostgreSQL and MongoDB for Brazilian higher-education institutions, including PUC, one of the country's largest private university networks.
   • Rendered interactive 3D anatomy models in the browser with the model-viewer library, giving medical students study material that had only been available on campus.
   • Implemented authentication and authorization flows using JWT and OAuth 2.0, ensuring secure multi-user access patterns.
   • Collaborated with a Scrum team to build and deploy a successful learning application used in colleges throughout the country.
   • Promoted from intern to junior developer over 2 years.

   • Vue.js
   • Nuxt.js
   • Node.js
   • PostgreSQL
   • MongoDB
6. Aug 2019 — May 2020

   Software Engineering Intern · Tribunal de Contas do Estado do Paraná

   Curitiba, Brazil

   • Developed internal ASP.NET applications for a public-spending audit tool, making state expenditure auditable and visible to citizens.

   • ASP.NET
   • C#
   • JQuery

A rolling showcase of sites and apps I've shipped that are live in production today.

BusTrack CWB

Free, ad-free real-time public transit tracker for Curitiba, built on open transit data.

• Next.js
• TypeScript
• Socket.io
• React Leaflet
• Oracle Cloud

Visit site

LW Auto Marketplace

B2B vehicle marketplace cataloging 5,000+ vehicles.

• Next.js
• Nest.js
• Prisma
• MariaDB

Visit site

Irrigate

Business-facing site that expanded the client's digital reach.

• Next.js
• React.js
• TailwindCSS

Visit site