Guilherme Vieira
Senior Software Engineer Technical Lead at Stone
Minas Gerais, Brazil
Summary
👤
Senior🎓
Top SchoolGuilherme Vieira is a Senior Software Engineer and Technical Lead based in Minas Gerais, Brazil, with a deep track record of building scalable, reactive microservices and leading cross-functional teams. At Stone he shaped a credit risk analysis tribe from the ground up, driving architecture, technical leadership and the bridge between business and engineering. He brings hands-on expertise across the Microsoft stack (.NET 5/NET Core), cloud/serverless Azure patterns, observability (Grafana/Prometheus/ELK) and messaging (RabbitMQ), with solid CI/CD and data pipeline experience. Long tenure in product-focused roles means he pairs legacy-system fluency (VB6, Dataflex) and device integrations with modern cloud-native practices. An active contributor to Brazilian fiscal-document tooling, he has enhanced DFe.NET with improved signing and DateTimeOffset handling—showing attention to correctness in domain-critical systems. Practical, process-minded and technically curious, he balances implementation detail with team enablement and agile culture propagation.
8 years of coding experience
20 years of employment as a software developer
Master of Business Administration - MBA, Gerência de Projetos, Incompleto, Master of Business Administration - MBA, Gerência de Projetos, Incompleto at Faculdade PitagorasTécnico em Informática, Informática, Técnico em Informática, Informática at Escola Agrotécnica Federal de UberlândiaBacharelado em Engenharia de Controle e Automação, Mecatrônica, Robótica e Engenharia de Controle e Automação, Bacharelado em Engenharia de Controle e Automação, Mecatrônica, Robótica e Engenharia de Controle e Automação at Faculdade Politécnica de Uberlândia
Github Skills (10)
xml10
csharp10
dotnet-core10
netframework10
ctr9
apidoc9
ctfe9
ctre9
ctf9
api9
Programming languages (1)
Github contributions (5)
ZeusAutomacao/DFe.NET
Mar 2018 - Jun 2020
Biblioteca para Geração de NFe(2.0, 3.10 e 4.0) e NFCe(3.10 e 4.0) e consumo dos serviços necessários à sua manutenção, conforme descritos em http://www.nfe.fazenda.gov.br/portal/principal.aspx
Role in this project:
Backend Developer
Backend DeveloperContributions:28 commits, 10 PRs, 35 comments in 2 years 4 months
Contributions summary:Guilherme primarily focused on modifying and extending the `dfe.net` library, which is used for generating and consuming electronic fiscal documents (NF-e, NFC-e, etc.) in the Brazilian context. Their contributions include enhancing the handling of date and time information by using `DateTimeOffset` and adding new attributes, like `pST`, to existing classes. The commits also show the user implementing the signing functionality, including the ability to use different signing methods and digest methods. These changes indicate a focus on improving the core functionality and features of the library.
govpatchaspxctebiblioteca
gui-abrantes/DFe.NET
Mar 2018 - Mar 2021
Biblioteca para Geração de NFe(2.0, 3.10 e 4.0) e NFCe(3.10 e 4.0) e consumo dos serviços necessários à sua manutenção, conforme descritos em http://www.nfe.fazenda.gov.br/portal/principal.aspx
Contributions:45 pushes, 1 branch in 3 years 1 month
govpatchaspxbibliotecarios
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