Cássio De Costa
Technical Lead at ASAAS
Rio Grande do Sul, Brazil
Summary
👤
Senior🎓
Top SchoolCássio De Costa is a Technical Lead with 11 years of hands-on software engineering experience and over seven years in technical leadership, specializing in scalable, high-performance systems using .NET/C#, Google Cloud, Firebase, and TypeScript. He combines strong architecture skills (Clean Architecture, SOLID, DDD) with practical delivery expertise—CI/CD, TDD/BDD, and automated testing—to boost reliability, cut cloud costs, and accelerate product iterations. He has driven measurable outcomes like migrating to Cloud Run, achieving 100% test coverage, and reducing infrastructure costs by up to 60% while improving app ratings through continuous product-focused improvements. Comfortable across backend, mobile, and integrations, he has led teams, defined roadmaps, and translated business needs into secure, maintainable platforms for payments and consumer apps. A former professor and hands-on mentor, he still invests in developer growth and knowledge transfer, which helps teams scale sustainably. Outside work he plays guitar and sings, reflecting a creative streak that shows up in pragmatic, user-centered engineering.
10 years of coding experience
27 years of employment as a software developer
Graduado, TI, Graduado, TI at ULBRAMaster of Business Administration - MBA, Bancos de Dados, Master of Business Administration - MBA, Bancos de Dados at Universidade do Extremo Sul Catarinense
Portuguese, English
Github Skills (20)
lds9
rack8
multithreading8
server7
rio7
ruby6
react5
javascript5
projeto4
frontend4
lpc3
python2
continuous-integration2
typescript1
teste1
Programming languages (6)
Github contributions (5)
cassiocosta/POO-2022-2
Mar 2022 - May 2022
Contributions:16 commits, 15 pushes, 3 branches in 2 months
lds-ulbra-torres/desafio-front-end
Mar 2018 - May 2021
Desafio para quem quer entrar no LDS para frontend.
Contributions:6 PRs, 6 pushes, 1 branch in 3 years 2 months
reactldsjavascriptfrontenddesafio
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