Jefferson Santos
Brazil
Summary
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SeniorJefferson Santos is a .NET software engineer with 10 years of experience building and modernizing backend systems for large financial, logistics and government clients. He specializes in .NET (including .NET 6+), Web APIs, clean architecture and test-driven practices, and has repeatedly delivered scalable integrations using AWS/Azure, Docker, Dapper/EF and both relational and NoSQL datastores. Comfortable in agile teams, he has contributed to treasury and payment modernization projects (including Pix integration) and solved critical logistics tracking challenges in production. Jefferson combines a strong emphasis on CI/CD, mutation and integration testing with practical DDD/CQRS patterns, and brings a continuous-learning mindset from Sergipe that helps him bridge legacy systems and cloud-native design.
11 years of coding experience
Github Skills (2)
projeto9
python4
Programming languages (2)
Github contributions (5)
Jeffconexion/Jeffconexion
Dec 2020 - Aug 2025
Contributions:20 pushes, 1 branch in 4 years 8 months
Jeffconexion/Design_Patterns
Jan 2021 - Feb 2021
Contributions:12 commits, 9 pushes, 1 branch in 19 days
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