Guilherme Sousa
São Paulo, São Paulo, Brazil
Summary
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SeniorGuilherme Sousa is a Lead Full Stack Engineer with 8 years of experience designing and delivering scalable web platforms across startups and enterprises, currently leading greenfield projects and an eight-engineer team at AVAG Holding. He specializes in TypeScript, React, GraphQL and Node.js, and has a strong track record architecting monorepos, CI/CD pipelines and design systems that cut build times and duplication while improving delivery velocity. Known for building pixel-perfect, accessible component libraries with Storybook, he also designs backend infrastructure and data-visualization tools such as an interactive Data Lineage viewer. Guilherme combines hands-on implementation with system design and mentorship—having migrated multiple apps to monorepos and authored architecture docs that improved team collaboration and release predictability. Based in Braga, Portugal, he brings a pragmatic, test-first approach and a particular interest in state management, monorepos and micro frontends that shapes how teams scale front-end ownership.
8 years of coding experience
Stackoverflow
276reputation
85kreached
4answers
0questions
Github Skills (118)
keda10
tizen10
github10
windows10
rest-services10
swagger10
device-farm10
rest-api10
appium10
openapi10
webos10
javascript10
webdriver10
linux10
dotnet10
Programming languages (9)
Github contributions (5)
gifflet/spring-boot-course
Dec 2020 - Nov 2024
Contributions:18 pushes, 1 branch in 3 years 11 months
gifflet/GADS
Jan 2025 - Jul 2026
Simple device farm for remote control of devices and Appium test execution on iOS/Android
Contributions:11 releases, 115 pushes, 97 branches in 1 year 6 months
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