Marcio Rinaldi
Senior Software Engineer at SAI360
Cumming, Georgia, United States
Summary
👤
Senior🎓
Top SchoolMarcio Rinaldi is a Senior Software Engineer with 17+ years of experience and over a decade of hands-on engineering across C#, F#, ASP.NET, React, and SQL Server, currently based in Cumming, Georgia. He combines deep full-stack craftsmanship with five years of people leadership, mentoring developers through code reviews and technical coaching. Marcio has a strong track record of performance tuning and operational impact — e.g., reducing API response times by up to 85% and cutting outstanding support tickets by 90% in a year. He contributes to notable .NET open-source projects like Paket and AutoFixture, improving dependency management robustness and test infrastructure coverage. Comfortable bridging product priorities and engineering execution, he also brings practical expertise in functional programming, TDD, and automation that helps teams scale reliably.
12 years of coding experience
8 years of employment as a software developer
Pontifical Catholic University of Rio de Janeiro
English, Portuguese, Spanish
Stackoverflow
3,423reputation
177kreached
30answers
0questions
unit-testing
top-5%
xunit
top-1%
Github Skills (23)
unit-testing10
assertion10
testing10
net10
dotnet10
xunit10
autofixture10
nsubstitute10
asp-net10
dotnet-core10
fsharp10
assert10
package-manager10
csharp10
test-automation10
Programming languages (2)
Github contributions (5)
AutoFixture/AutoFixture
Aug 2014 - Jun 2015
AutoFixture is an open source library for .NET designed to minimize the 'Arrange' phase of your unit tests in order to maximize maintainability. Its primary goal is to allow developers to focus on what is being tested rather than how to setup the test scenario, by making it easier to create object graphs containing test data.
Role in this project:
QA Engineer / Test Automation Engineer
QA Engineer / Test Automation EngineerContributions:66 commits, 6 PRs, 22 comments in 9 months
Contributions summary:Marcio primarily contributed to the testing infrastructure of the project, focusing on creating and modifying unit tests for the AutoFixture library, specifically targeting the AutoNSubstitute extension. Their commits involve the creation of various test classes, including those for virtual methods and sealed properties, demonstrating an understanding of mocking and substitute testing techniques. The user focused on test scenarios and edge cases to ensure the library's reliability. This includes test coverage for interfaces, methods, properties, and out/ref parameters.
goalunitmaintainabilitymaximizegraphs
fsprojects/Paket
Jul 2015 - Aug 2017
A dependency manager for .NET with support for NuGet packages and Git repositories.
Role in this project:Backend Developer & Test Automation Engineer
Backend Developer & Test Automation EngineerContributions:130 commits, 39 PRs, 76 comments in 2 years
Contributions summary:Marcio primarily contributed to the `Paket` project by enhancing the update process, focusing on making it more robust and testable. Their work involved adding tests for selective updates and ensuring correct package dependency resolution. Furthermore, the user addressed scenarios related to group updates, including constraints, and dependencies, ensuring that the package manager functions reliably with varying configurations.
repositoriesdotnetfsharpmonopackage-manager
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