Tadas Kertenis is a founder-CEO and product-oriented technologist with eight years of experience building travel tech businesses from scratch and scaling them to multi-million euro revenue without external funding. He grew tedo.lt from a solo operation into a 12-person company and now leads Hoperfy, where he pivoted a consumer travel concept into B2B hotel and business-travel solutions that already generate revenue while the subscription product is still in development. Hands-on in engineering and QA, Tadas has contributed backend and test automation work to major open-source projects like PrestaShop, bringing practical Symfony, PHPUnit and Behat expertise to product-quality initiatives. Based in Sunnyvale, he blends operational discipline, recruiting acumen, and customer-driven pivots—an unusual mix of startup scaling skills and deep test-first engineering experience.
8 years of coding experience
Bachelor's Degree, Psichology, Bachelor's Degree, Psichology at Vytauto Didžiojo universitetas
PrestaShop is the universal open-source software platform to build your e-commerce solution.
Role in this project:
Back-end Developer & Test Automation Engineer
Contributions:193 commits, 34 PRs, 291 comments in 3 months
Contributions summary:Tadas primarily contributed to the project by implementing and testing new Behat features for the PrestaShop e-commerce platform. Their work involved creating tests related to the debug mode, showcase cards, order messages, and theme mail templates, indicating a focus on improving the system's functionality and reliability through automated testing. The commits demonstrate the use of PHPUnit and the Symfony framework, suggesting a strong understanding of back-end development and testing methodologies within the PrestaShop ecosystem. Furthermore, their work included refactoring tests to use PHPUnit_Framework_Assert, improving code clarity and maintainability.
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