I build digital products people love to use.

Senior Full Stack Engineer with 15+ years building high-impact SaaS products with React, Next.js, TypeScript and Node.js. I care about great UX, clean code and high-performing teams.

LinkedIn Download CV

15+

Years of experience

30%

Faster feature delivery

20%

Infra cost reduction

5K+

Institutions impacted

Experience highlights

Flecto

Lead Frontend Engineer

Sep 2023 – Jun 2026·Lisbon / Porto Alegre (Remote)

Delivered the frontend architecture for a multi-tenant SaaS platform and built an online store engine from scratch with React & Next.js. Cut build time by 40%.

mollie

Full Stack Engineer

Jun 2022 – Jul 2023·Lisbon, Portugal

Improved security workflow adoption by 10% and built a shared backend-for-frontend layer that accelerated feature delivery by 30%.

wwarren

Engineering Lead

Dec 2020 – Apr 2022·Florianópolis, Brazil

Led a team of 6 engineers to build a private pension platform with $60M AUM and raised delivery throughput by 35%.

Core Expertise

The stack I build with

Frontend

ReactNext.jsTypeScriptZustandTanStack QueryStorybookCSS Modules

Backend

Node.jsNestJSExpressREST APIsMicroservicesPrismaTypeORM

ClaudeClaude CodeCodexSkillsMCPRAGHarnessAI Agents

Leadership

MentoringEngineering GuidelinesProduct CollaborationGrowth Framework

Architecture & DX

MonoreposTurborepoSystem DesignCI/CDPNPMEngineering DX

Data & Cloud

PostgreSQLMySQLMongoDBRedisAWSGCPVercelDocker

Projects

Things I've built

Web app

MovieShelf

A web app to browse, discover and keep track of movies and TV shows — powered by the TMDB API.

ReactNext.jsTypeScript

movieshelf.app

Mobile app

Fitboss

An iOS/Android app for personal trainers to manage their client base — build workouts in minutes, track each student's progress and handle billing in one place.

React NativeExpoTypeScript

fitboss.cc

Web app

ColorMe

An AI-powered color analysis app — upload a selfie and get your ideal color palette, with outfit and makeup shades that highlight your natural beauty.

ReactNext.jsTanStack QueryTypeScriptCSS Modules

colorme.cc

Open source

TMDB TypeScript Library

A fully-typed TypeScript client for The Movie Database (TMDB) API, built for a great developer experience.

TypeScriptNode.js

github.com/leandrowkz/tmdb

Contact

Let's build something people love.

Currently available for new opportunities. The fastest way to reach me is a quick email.

Based in Brazil · GMT-3+55 51 991 777 945Portuguese · English · Spanish