Andrei Joltan is a software engineer based in Cluj-Napoca with seven years of experience specializing in Android development and UI test automation. He has contributed to high-profile open-source projects such as Firefox for Android (Fenix/Focus), focusing on Espresso and UI Automator-based smoke and integration tests that improve stability across context menus, web controls, and tab/bookmark flows. As a mid-level Android QC/Test Automation engineer, he blends hands-on mobile development with a QA mindset—writing and maintaining tests, integrating MockWebServer, and disabling or enabling suites to keep CI healthy. His work demonstrates a pragmatic focus on user-facing quality and reproducible UI verification rather than purely backend or tooling efforts. Comfortable navigating large, community-driven codebases, he brings dependable delivery on UI reliability for complex mobile apps. An often overlooked strength is his attention to flaky-test mitigation, which helps reduce noise and accelerate releases.
⚠️ Fenix (Firefox for Android) moved to a new repository. It is now developed and maintained as part of: https://github.com/mozilla-mobile/firefox-android
Role in this project:
Mobile Developer (Android) & QA Engineer / Test Automation Engineer
Contributions:138 reviews, 249 commits, 376 PRs in 2 years
Contributions summary:Andrei primarily focused on developing and testing UI components for the Firefox Android browser. Their work involved implementing UI smoke tests, covering features like recently closed tabs, bookmarks, and the tabs tray. They also addressed issues related to downloads, and general UI functionalities, including ensuring the user experience was correct in regards to the features implemented. The user extensively used Espresso and UI Automator frameworks for test automation, demonstrating a strong understanding of UI testing methodologies within the Android ecosystem.
⚠️ Firefox Focus (Android) moved to a new repository. It is now developed and maintained as part of: https://github.com/mozilla-mobile/firefox-android
Role in this project:
QA Engineer / Test Automation Engineer
Contributions:47 reviews, 62 commits, 67 PRs in 8 months
Contributions summary:Andrei primarily contributed to the automated testing of the Firefox Focus Android application. Their work included disabling and enabling UI tests for various features like custom tabs, context menus, and web controls to address issues or improve test coverage. They also created and maintained tests for specific UI elements like date pickers, and cookies management. This work helps ensure the application's functionality and user experience.
firefoxbrowserprivacyfirefox-androidandroid
Find and Hire Top DevelopersWe’ve analyzed the programming source code of over 60 million software developers on GitHub and scored them by 50,000 skills. Sign-up on Prog,AI to search for software developers.
Request Free Trial
Andrei Joltan - Software Engineer at Softvision / Mozilla