Darío Kondratiuk
Software Engineer at mabl
Buenos Aires, Autonomous City of Buenos Aires, Argentina
Summary
🤩
Rockstar🎓
Top SchoolDarío Kondratiuk is a seasoned software engineer based in Buenos Aires with over 20 years in web development and 13 years of focused professional experience delivering .NET systems and test automation. Currently at mabl, he blends backend engineering with deep expertise in browser automation—he authored the popular Puppeteer-Sharp and Playwright-Sharp .NET ports and wrote the book "UI Testing with Puppeteer." A Microsoft MVP since 2020, Darío is a prolific open-source contributor and QA-focused engineer who has improved test coverage and reduced flakiness across Puppeteer and Playwright projects. His background leading .NET teams and migrating APIs to .NET Core demonstrates both technical leadership and hands-on execution. With a long history of building productivity tools (including a code generator that dramatically boosted junior developer output) he pairs pragmatic architecture with developer experience sensibilities.
13 years of coding experience
19 years of employment as a software developer
Graduate, Information Technology, Degree in computer science, Graduate, Information Technology, Degree in computer science at Universidad Argentina de la Empresa
English, French, Spanish
Stackoverflow
20,224reputation
5.6mreached
562answers
10questions
puppeteer
top-1%
automated-tests
top-5%
code-formatting
top-5%
javascript
top-1%
google-chrome
top-5%
visual-studio-code
top-1%
Github Skills (38)
visual-studio-code10
e2e-testing10
puppeteer10
javascript10
e2e-test10
testing10
chromium10
webpages10
web-content10
automation10
firefox10
dotnet-core10
nodejs10
automations10
webtest10
Programming languages (14)
Github contributions (5)
hardkoded/puppeteer-sharp
Sep 2017 - Jan 2023
Headless Chrome .NET API
Role in this project:
Back-end Developer
Back-end DeveloperContributions:95 releases, 301 reviews, 686 commits in 5 years 4 months
Contributions summary:Darío's contributions focused on the implementation of a keyboard class in C# within the PuppeteerSharp project. They added a new Keyboard class with methods for interacting with a keyboard such as Down, Up and SendCharacter. The user also added support for the various modifier keys, such as Shift, Control, Alt, and Meta and their corresponding key codes.
headlessapimonopuppeteernike
microsoft/playwright-dotnet
Jan 2020 - Jun 2021
.NET version of the Playwright testing and automation library.
Role in this project:Test Automation Engineer & Backend Developer
Test Automation Engineer & Backend DeveloperContributions:16 releases, 312 reviews, 562 commits in 1 year 5 months
Contributions summary:Darío was primarily involved in the development and maintenance of automated tests for the PlaywrightSharp project. They focused on writing tests for various components, including element handle, and more generally, testing with Chromium. Their contributions included improving test coverage by implementing tests for new functionalities and also fixing issues related to existing tests, such as handling edge cases and correcting functionality. The user also made changes to the backend code related to Chromium and other related components.
firefoxtestingchromecsharpchromium
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