Krzysztof Buczek
QA Automation Engineer
4+ years exp
Java
SQL
Active 6 days ago
+48 (602) 208570 Invite to interview
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Overview
Technical skills
Timeline
Roles
Overview
QA Test Specialist with about 4 years of experience at T-Mobile Polska, working on manual and automated regression testing for web and mobile applications. Experienced with defect reporting and collaboration with developers, and automation work using Java with Selenium/Selenide, Cucumber, Jira X-Ray, and Jenkins.
Technical skills
Java• Junior • 4y+
SQL
DevOps
Jenkins• 4y+
Rest API• 4y+
Kibana
QA
Selenium• 4y+
Cucumber
Management
Jira
Timeline
Test Specialist (Manual & Automated Regression)
•
Middle
T-Mobile Polska S.A.
•
Full-Time
Performed manual and automated regression testing for the mobile app Mój T-Mobile before releases, covering key customer flows like SIM card registration, top-ups, profile creation/linking, retention, tariff changes, and defect reporting. Also tested related internal and sales systems, analyzed automation results to identify defects, and collaborated with developers to fix functional issues. Worked on improving the regression testing process to reduce execution time and built/defined test scenarios based on business requirements.
Jira
Test Specialist (Test Automation Team)
•
Middle
T-Mobile Polska S.A.
•
Full-Time
Maintained and improved automated test coverage for the Heyah 01 web store. Collaborated with regression testing teams, executed manual tests for software quality verification, and reported defects in Jira while monitoring their resolution. Partnered with developers during defect fixing and designed comprehensive test scenarios for web applications.
Jira
Test Specialist (Mobile Applications Team)
•
Middle
T-Mobile Polska S.A.
•
Full-Time
Worked as a manual tester for the T-App mobile applications team. Tested new processes and features and performed regression testing for the Mój T-Mobile mobile app, coordinating with developers during validation and issue resolution. Focused on ensuring release readiness for mobile functionality changes.
Developer/Tester (OneShop Team)
•
Middle
T-Mobile Polska S.A.
•
Full-Time
Performed manual and automated testing in the Digital Tribe Channel for the Heyah 01 web store and implemented tests for new business processes. Maintained and developed automated tests, including verification of production-like environments, and built automated suites in Java using Selenium/Selenide with Cucumber. Integrated testing with Jira X-Ray and Jenkins, tested new store purchase/migration flows, and ensured correct production configuration.
Java
Selenium
Jirasince 2022
Jenkins
University of Warsaw
Master's Degree •
Political marketing