Senior Frontend Engineer

Rafael Sampaio Tavares

I build, optimize, and scale modern web applications. Deep expertise in the React ecosystem, with full-stack experience across products used by thousands of users.

Get in touchGitHub
8+
Years building products
7K+
Agencies served at Kenlo
50%
Build time reduction
Rafael Sampaio Tavares

About me

Senior Frontend Engineer who builds, optimizes, and scales. I have deep experience in the React ecosystem, enhancing legacy systems for thousands of users while architecting new products from scratch.

Frontend craft

React ecosystem, TypeScript, and modern tooling with strong UX discipline. I care about component architecture as much as about the pixels.

Team leadership

Led SCRUM adoption, mentored developers, and ran weekly client calls. Good code is made by aligned teams.

Performance at scale

Optimized build pipelines, CDN strategies, and test coverage. From 13-minute builds to 7, and from slow pages to fast ones.

Experience

A track record of turning complex requirements into fast, reliable products.

Apr 2021 - Apr 2026·Brazil

Kenlo

Senior Frontend Engineer

  • Led modernization initiatives for a whitelabel platform serving 7,000+ real estate agencies.
  • Reduced build times by 50% (13min to 7min) through optimization strategies.
  • Architected CDN asset management strategy that significantly improved site speed.
  • Achieved 90% test coverage with highly decoupled, reusable components.
Jan 2019 - Apr 2021·Brazil

Paguru Digital Solutions

Senior Frontend Developer

  • Built full-stack applications with React.js, Vue.js, and WordPress.
  • Developed complex back-office frontend with React, Redux, and Material UI.
  • Led SCRUM methodology implementation and weekly client calls.

Education

Solid computer science foundation combined with hands-on teaching experience.

Aug 2013 - Jun 2017

UFCG

Computer Science

Coursework toward a BSc

  • Teaching assistant for Programming Lab II (Java, design patterns).
  • Teaching assistant for Information Systems I (Java Web, Play Framework, Scala).
Aug 2018 - Dec 2020

UNIFAP

Systems Analysis & Development

Technologist Degree

  • GPA 8.62 (Brazil scale) / 3.44 (US scale).

Projects

Selected work that combines product thinking, system design, and solid engineering.

Developing

Full-Stack Mobile App

Cross-platform mobile application using React Native and Expo, backed by Nest.js and Cloudflare CDN for optimal performance.

React NativeExpoNest.jsCloudflare CDN

Cross-platform delivery

CDN-optimized assets

Active

DevOps & Infrastructure

Personal homelab running Kubernetes, managing IT operations for an industrial department with a focus on stability.

KubernetesDockerInfrastructure

Container orchestration

24/7 monitoring

Skills

Technologies and practices I use to ship reliable, maintainable software.

Frontend

React.js, Vue.js, TypeScript, JavaScript, CSS, SASS

Backend

Node.js, Nest.js, Express.js, Sequelize

DevOps

Kubernetes, Docker, GCP, Firebase

Testing

Jest, Vitest, React Testing Library, TDD

Tools

Vite, Webpack, Git, SCRUM

Performance

SEO, SSR, CDN, Optimization

Languages

Fluent communication for global teams and clients.

Portuguese

Native

English

B2 Intermediate

Certifications

Continuous learning in language proficiency and software engineering.

Certificate in General English (C1)

Language

Seda College - Dublin

Feb 2018

English Language Proficiency Exam

Language

Universidade Federal Rural do Semi-Árido

Aug 2020

React - The Complete Guide

Technical

Udemy - Academind

Aug 2020

ReactJS, Hooks, TDD, Clean Architecture

Technical

Udemy - Rodrigo Manguinho

Dec 2021