João Oliveira
Fullstack Developer at nstech
Goiás, Brazil
Summary
🤩
Rockstar🎓
Top SchoolJoão Oliveira is a Fullstack Developer with six years of hands-on experience building scalable, secure systems using C#, Java, .NET, Node.js and modern front-end frameworks like Angular, React and Next. He brings proven impact in performance tuning, architectural restructuring and automation—having built reusable C# Selenium test frameworks that cut manual effort by 70% and optimized services to improve response times by up to 40%. Comfortable across SQL and NoSQL databases, Kafka/RabbitMQ messaging, REST/SOAP APIs and Docker, João thrives solving production incidents and improving reliability as part of support squads. He applies Clean Architecture, DDD and SOLID principles to deliver maintainable code and CI/CD pipelines that reduce deployment risk. Based in Goiás, Brazil, he treats technology as a value-driving tool and is open to remote roles where he can learn, mentor and deliver measurable business outcomes. An observant problem-solver, he often pairs QA-oriented thinking with full-stack delivery to prevent regressions before they reach users.
6 years of coding experience
4 years of employment as a software developer
Bacharelado Ciência da Computação, Bacharelado Ciência da Computação at Universidade Paulista
Github Skills (9)
voce8
whatsapp8
ticket-system8
chat7
javascript6
php4
api4
whatsapp-cloud-api4
mvc3
Programming languages (3)
Github contributions (5)
smartsolucoesgo/chat-HTML_JS_SOCKET
Mar 2020 - Mar 2020
Chat puro em html utilizando javascript puro + socket (Ratchet WebSockets for PHP)
Contributions:3 pushes, 1 branch in 1 day
socketwebsocketssocket-iophpjavascript
smartsolucoesgo/openai-api
Jan 2025 - Jan 2025
Contributions:2 pushes, 1 branch in 1 day
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