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Luiz – Next.js, React, Typescript, experts in Lemon.io

Luiz

From Brazil (UTC-3)

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Front-end Web DeveloperStrong senior
15 years of commercial experience
E-commerce
Fashion
Fintech
Music and audio
Scientific research
Video production
Lemon.io stats
1
projects done
0
hours worked

Luiz – Next.js, React, Typescript

Luiz is a highly skilled engineer with over 14 years of commercial experience. He specializes in React.js, Next.js, and TypeScript and possesses deep comprehension of these technologies as a Strong Senior Front-end Engineer. His background spans multiple industries, including music & audio, video production, fashion, and e-commerce, giving him a well-rounded understanding of diverse business domains.

Previously serving as Head of Front-End, Luiz demonstrated both technical expertise and leadership, defining best practices, ensuring team alignment with technical standards, and balancing hands-on development with strategic oversight. His strong technical skills, clear communication, and proven leadership, as observed during the Lemon.io interview process, make him an outstanding candidate and a valuable asset to any team.

Main technologies
Next.js
5 years
React
7 years
Typescript
4 years
JavaScript
10 years
Styled-components
3 years
ChakraUI
2 years
Additional skills
React Native
Agile
AWS
Firebase
Ruby on Rails
React Hooks
React Query
React Hook Form
PostgreSQL
Redis
Sidekiq
Tailwind CSS
Ready to start
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Direct hire
Potentially possible
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Experience Highlights

Senior Front-end Engineer
Oct 2023 - Nov 20241 year
Project Overview

The client was the premier producer and publisher of video-based resources designed to enhance research and education in science, medicine, and engineering. By offering high-quality, peer-reviewed visual content, they helped researchers and educators improve productivity, streamline learning, and advance scientific discovery.

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Responsibilities:

Luiz's main scope of responsibilities included the following:

  • implemented responsive designs and front-end optimizations to improve user experience;
  • collaborated with cross-functional teams to ensure seamless system integration;
  • delivered high-quality, maintainable code while adhering to best practices and contributing to overall codebase improvements.
Project Tech stack:
React
Strapi
WordPress
Next.js
i18next
AWS
Amazon S3
Amazon CloudFront
Docker
JavaScript
Typescript
CI
CD
CSS
Styled-components
ChakraUI
Senior Front-end Engineer
Jan 2023 - Oct 20239 months
Project Overview

The project was a pioneering streaming service dedicated to electronic music, offering an extensive collection of expertly curated, genre-specific channels. Launched in the early days of online streaming, it has grown into a go-to platform for electronic music enthusiasts worldwide, providing high-quality audio, exclusive mixes, and a seamless listening experience. With a diverse range of styles—from house and trance to techno and ambient—this service catered to every electronic music taste, fostering a vibrant global community of listeners and artists.

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Responsibilities:

Among others, Luiz carried out the following:

  • worked on the redesign of the authentication system;
  • built from scratch a modular system to manage Sendgrid e-mail templates for the entire platform.
Project Tech stack:
React
Typescript
JavaScript
Backbone.js
Ember.js
Ruby on Rails
React Hooks
AWS
Senior Front-end Engineer
Jan 2022 - Sep 20231 year 7 months
Project Overview

One of the largest retail chains in Brazil, known for offering a diverse range of fashion, beauty, and home products. With a strong online and offline presence, it provided a seamless shopping experience to millions of customers, combining innovation, accessibility, and high-quality service.

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Responsibilities:

Luiz's contributions included, but were not limited to the following:

  • refactored and optimized legacy front-end codebases, enhancing performance and maintainability;
  • implemented accessibility best practices (WCAG) and UX enhancements, ensuring an inclusive and seamless user experience across devices.
Project Tech stack:
React Native
React
Typescript
Firebase
Firebase Cloud Messaging
Firebase Crashlytics
AWS
Azure DevOps
CI
CD
Head of Front-end
Sep 2016 - Nov 20171 year 2 months
Project Overview

This project was developed around a comprehensive point-of-sale solution founded in Brazil, designed to help businesses manage sales, inventory, and customer interactions efficiently. It provided seamless integration with various payment methods and business tools, enabling retailers to streamline operations and enhance their overall efficiency.

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Responsibilities:

As a Head of the Front-end department, Luiz performed such duties:

  • re-implemented the legacy app from AngularJS to React;
  • defined and maintained the architecture of the main application;
  • implemented mono repo solutions for component re-usage between multiple apps;
  • conducted regular one-on-ones with the Front-End team of 3 engineers;
  • managed code reviews and technical support for the Team.
Project Tech stack:
React
Angular JS
AWS
Ruby on Rails
Ruby
JavaScript
Typescript
Material UI

Education

2025
Software Engineering
Bachelor's

Languages

Portuguese
Advanced
Spanish
Pre-intermediate
English
Advanced

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