Alexandru Călinoiu is a seasoned software leader and entrepreneur with 13 years of hands-on experience building backend systems, founding startups, and scaling technology teams from Sibiu, Romania. As CTO and co-founder of Agile Freaks and technical co-founder at Reasig, he blends strategic product thinking with daily code reviews and architecture for high-quality APIs. He contributes to notable open-source tooling such as the Refit .NET REST client—improving test coverage and reliability—which reflects his craftsmanship mindset. Beyond product work he grows the local tech ecosystem as Vice President of Sibiu IT Cluster and has a track record of launching and advising multiple ventures and NGOs. Colleagues know him as a pragmatic problem-solver who pairs deep .NET and Ruby/Rails experience with an enthusiasm for mentoring and community building.
13 years of coding experience
16 years of employment as a software developer
Bachelor of Engineering - BE, Computer Science, Bachelor of Engineering - BE, Computer Science at Lucian Blaga University of Sibiu
The automatic type-safe REST library for .NET Core, Xamarin and .NET. Heavily inspired by Square's Retrofit library, Refit turns your REST API into a live interface.
Role in this project:
Backend Developer & Test Automation Engineer
Contributions:9 commits, 1 comment in 9 days
Contributions summary:Alexandru primarily contributed to the backend of the Refit library by fixing failing specifications and improving existing test coverage. The commits demonstrate expertise in writing integration tests and addressing issues related to HTTP requests and responses within the .NET environment. The user also refactored code, addressing code formatting and removing unused dependencies, to maintain the project's consistency and style. The changes indicate a focus on the quality and reliability of the REST client library.
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Alexandru Călinoiu - Vice President at Agile Freaks