Daniel Cazzulino is a Technical Fellow and seasoned .NET architect with 15+ years building developer tools, frameworks, and cloud-native infrastructure, currently advising on Azure and AI-driven .NET design at Clarius Consulting. A long-time believer in Agile and intuitive APIs, he is the creator of Moq and a prolific contributor to high-profile .NET projects including Octokit, Xamarin.Forms, .NET MAUI and .NET for Android. He blends deep design-pattern expertise with hands-on experience in build/release automation, Visual Studio extensibility and cross-platform mobile tooling, having designed remote MSBuild agents and reusable extensibility libraries shipped as NuGet packages. Known for pragmatic refactors and improving APIs, he focuses on testability, telemetry and resilient distributed protocols. Based in Buenos Aires, he pairs engineering leadership with active open-source maintenance, often fixing regressions and keeping critical libraries healthy.
15 years of coding experience
19 years of employment as a software developer
Universidad de Buenos Aires
Bachelor's degree, Bachelor's degree at Colegio Nacional Justo Jose de Urquiza
Microsoft patterns & pratices CQRS Journey sample application
Role in this project:
Back-end Developer
Contributions:255 commits in 3 months
Contributions summary:Daniel contributed to the development of the CQRS Journey sample application, specifically focusing on persistence for the seat availability feature using Entity Framework (EF). Their work involved creating an EF repository interface and implementing an initial version of the repository, adding new database schema, and integrating the database schema into the existing code base. The user also implemented a basic system for managing and publishing commands for a specific application, which is essential for the underlying architecture.
The most popular and friendly mocking framework for .NET
Role in this project:
Back-end Developer
Contributions:18 releases, 4 reviews, 177 commits in 10 years 7 months
Contributions summary:Daniel's contributions primarily involved updating the project's dependencies, including the use of NuGet packages for dependencies like Castle and xUnit. They also addressed various regression issues reported in the project, implementing fixes related to mock behavior and setup configurations. The commits show a focus on maintaining and improving the core functionality of the mocking framework.
moq
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Daniel Cazzulino - Technical Fellow at Clarius Consulting