About me

Software Engineer at @R2A

Experience in Javascript, Typescript, React.js, Next.js, Vite, Sass, Redux, Responsive Design, Firebase, Supabase, Hasura, SQLite, MySQL, PostgreSQL, GraphQL, Jest, Node.js, Express, Fastify, Elysia.js, NestJS, Bun.js, Whatsapp API, Rocketchat, Serverless and Microservices

Skills and expertise

Languages: Javascript / Typescript & Python

Frontend: React.js (Vite) & Next.js

Backend: Node.js, Bun.js, Express, Fastify, Elysia.js & Nest.js

Database: Prisma, Hasura, Firebase, Supabase, MySQL, PostgreSQL & SQLite

Testing: Node:test, Bun:test, Storybook & Jest

DevOps: Docker, Vercel, CI/CD & Github Actions

Design: Figma, Adobe XD, Photoshop & UX/UI

Other: Git, Serverless, Google Cloud, Docusaurus, etc...

Career

Personal projects or those involving self-development will be listed on Linkedin.

Software Engineer II @ R2A Cobrança Pecuária | Dec 2025 - Actually

Using Bun.js, Next.js, Discord Webhook, Python, PWA, Supabase & Docusaurus

Software Engineer II @ Astriia | Sep 2024 - May 2025

Led the development of internal platforms using Node.js and React, successfully reducing the execution time of core internal processes by 35%.

Engineered AI-powered solutions integrated with the WhatsApp Business API and OpenAI, doubling the accuracy of personalized customer responses.

Implemented a Stripe payment system that boosted annual plan conversion by 28% and developed a feedback system that increased customer satisfaction by 40%.

Using Express, Node.js, OpenAI API, WhatsApp API, Facebook Business API, Next.js, Discord Webhook, AstrologyAPI, Stripe and Python

Software Engineer II @ WhatsUpper | Aug 2023 - Dec 2023

Specialized in developing and integrating intelligent automation solutions for the WhatsApp Business API, enhancing customer communication workflows.

Built and maintained scalable backend services using Node.js to process high volumes of messages and power interactive chatbot experiences.

Collaborated with cross-functional teams to design and implement custom features, focusing on improving user engagement and retention through the WhatsApp channel.

Using Rocket.chat, Firebase, Next.js, WhatsApp API, Facebook Business API, Twilio and Firebase

Software Engineer II @ Stone | Oct 2022 - Jul 2023

Optimized DialogFlow routines and integrated them with Rocket.Chat, improving chatbot response speed by over 50% and increasing customer retention.

Developed an interactive SPA with jQuery to automate customer routing and enable WhatsApp-based checkouts, cutting down queue times by up to 20%.

Authored comprehensive documentation for system architectures and internal processes, ensuring scalability and simplifying future maintenance.

Using Rocket.chat, Hasura, Next.js, WhatsApp API, Facebook Business API, Twilio, Firebase, DialogFlow and Google Cloud Plataform

Systems Development Analyst I/II @ Cenário Capital | Oct 2020 - Sep 2021

Developed and maintained critical financial systems, contributing to data analysis and process automation to support investment strategies.

Collaborated with analysts and stakeholders to gather requirements and translate them into functional software solutions, improving operational efficiency through web quiz.

Progressed from a Junior to a Mid-level role by demonstrating strong technical skills in system design, database management, and backend development.

Using jQuery, HTML, CSS, Javascript, React, HTML for Email Marketing and Next.js

Front-end Developer I / Jr. Marketing @ Marry Perry | Feb 2020 - Sep 2020

Developed and enhanced the user interface (UI) of the e-commerce platform, focusing on creating a responsive and intuitive shopping experience.

Implemented front-end features and optimizations that contributed to improved user engagement and conversion rates.

Assisted the marketing team with technical tasks, including landing page creation, email template coding, tracking analytics and afiliates system.

Using HTML, CSS, Javascript, Node.js, Express, MySQL and Python.

Soldier @ Brazilian Army | Mar 2016 - Apr 2017

Developed strong discipline, resilience, and the ability to perform effectively in high-pressure, structured environments.

Mastered teamwork and communication skills through collaborative daily operations and mission-critical exercises with a diverse team.

Demonstrated a high degree of responsibility and commitment while managing assigned communication equipment and executing duties with precision.

Certificates

React by Gustavo Sales in Rocketseat - November 2025

React Fundamentals by Gustavo Sales in Rocketseat - November 2025

Introduction to automation with n8n by Enzzo Panarotto in Rocketseat - September 2025

NestJS by Jornada do Dev - April 2025

Technical Leadership (Tech Lead) by Sérgio Fiorotti in Rocketseat - February 2025

How to build a Micro SasS with Next.js, Firebase, Google Analytics and Stripe by Rocketseat - January 2025

Build a web API with Node.js and Express by Microsoft Ignite - November 2024

NLW Journey - GO by Rocketseat - July 2024

NLW Journey - NodeJS by Rocketseat - July 2024

NLW Journey - Java by Rocketseat - July 2024

NLW Journey - Python by Rocketseat - July 2024

NLW Journey - React (Tailwind, React) by Rocketseat - July 2024

Web Development with Python: Python, Django, Pytest & OOP by IBM SkillsBuild - June 2024

Firebase: Realtime Database, Cloud, Auth and Security by Gabriel Barreto - May 2024

NLW Unite (Node, Typescript, Fastify, Prisma, Zod & Swagger) by Rocketseat - April 2024

NLW Unite (React, Vite, TypeScript, Styled Components, Unicons & Dayjs) by Rocketseat - April 2024

NLW Expert (Node, TS, Fastify, Prisma, Docker, PostgreSQL, Redis, Zod & WebSocket) by Rocketseat - February 2024

NLW Expert (React, TS, Vite, TailwindCSS, Web Storage & Web Speech) by Rocketseat - February 2024

1st Kyorugui Arbitration Seminar by Nova FETESP - February 2024

4th Kombat Taekwondo Referee Siminar by Kombat Taekwondo - January 2024

TDD – Guided Software Development Tests by Instituto Tecnológico de Aeronáutica (Coursera Free) - December 2023

Complete Dialogflow - Master the Creation of Virtual Assistants by Universidade Global, Rogerio Guimaraes - November 2023

Modern Web with Projects (JS/Typescript/React/Node) by COD3R - August 2022

Workshop Figma by Design Culture - April 2022

Introduction and Complete Course in Computer Science by Harvard - March 2022

Participation, Proud Tech by Softplan - March 2022

Agile Days by Instituto de Gestão e Tecnologia da Informação (IGTI) - November 2021

Participation, Masterclass Github Actions by Azure na Prática - January 2021

Participation, Hackathon (Third Place) by Shawee, AMBEV Hackathon - December 2020

Linux Terminal by Profº Diego Mariano - October 2020

Introduction to the Linux Operation System by Profº Diego Mariano - October 2020

Introduction to MySQL Database by Profº Diego Mariano - October 2020

Creating Dynamic Web Pages with PHP by Profº Diego Mariano - October 2020

Facebook Blueprint - Basic to Advanced by Faculdade do Marketing Digital - July 2020

11th Edition - Omnistack Week by Rocketseat - March 2020

Introduction to Git and Version Control by Digital Innovation One - February 2020

Getting Started with Git and Your Commands by Digital Innovation One - February 2020

Arctic Code Vault Contributor by Github Archive Program - February 2020

Essential Programming Logic by Digital Innovation One - February 2020

Internet programming with HTML5 and CSS3 by Digital Innovation One - February 2020

Web Programming for Scientific Dissemination by Profº Diego Mariano - January 2020

Web Design with PHP, HTML, CSS and JS by Udemy - January 2020

Illustration and Graphic Design for the Web by Bradesco - May 2017

Web Design and Graphic Design by MacPoli Cursos - December 2014