Denys Zelenchuk
Zurich, Zurich, Switzerland
Summary
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SeniorDenys Zelenchuk is an engineering leader specializing in test automation with a decade of experience delivering robust mobile QA and automation across privacy-focused and fintech apps. He is currently Engineering Manager, Test Automation at Proton, guiding the growth of a privacy-first product suite including Proton Mail, VPN, calendar, and cloud storage. Denys combines hands-on Android expertise—rewriting tests in Kotlin, refactoring test architectures, and adding coverage for features like messaging and attachments—with strategic leadership to define test strategies, CI pipelines, and scalable QA processes. In his career at ProtonMail, Numbrs, and XING, he built testing infrastructures, led QA teams, and delivered end-to-end automation across Android, iOS, and web platforms. Based in Zurich, Switzerland, he brings a practical, auditable approach to quality and mentors teams to ship reliable software at scale, with ISTQB certifications underpinning his methodologies. He has contributed to Android UI test development with new intent matchers to boost test reliability and coverage, reflecting a hands-on knack for turning QA challenges into robust production-ready solutions.
11 years of coding experience
10 years of employment as a software developer
English, Russian, Ukrainian, Polish, German
Github Skills (13)
kotlin10
espresso10
android-test10
mobiledevelopment10
androidtest10
mobile-development10
ui-test10
native-android10
android10
android-development10
android-gui10
ui-testing10
test-automation10
Programming languages (4)
Github contributions (5)
ProtonMail/proton-mail-android
Jun 2020 - Apr 2021
Proton Mail Android app
Role in this project:
Mobile Developer (Android)
Mobile Developer (Android)Contributions:55 commits in 9 months
Contributions summary:Denys primarily focused on Android UI test development and test refactoring. Their contributions included rewriting existing tests in Kotlin, refactoring test structures, and adding new test cases for composer, labels/folders, and attachments functionalities. The commits show the addition of new intent matchers to improve test reliability and coverage. They also added testing capabilities related to features like sending messages and handling attachments.
mailemailandroidprotonandroid-app
denyszet/espresso-web-cheat-sheet
Sep 2020 - Nov 2021
Contributions:2 commits, 4 pushes, 1 branch in 1 year 2 months
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