Manual and automated testing of Web apps and API.

Main project- ERP system (custom web-based software system for creating, storing, organizing, searching, viewing, editing, and controlling standardized work instructions and processes, show stages, etc.) Used technologies: Java, PostgreSQL, jQuery, React.
Achievements: developing, implementation, support, and executing E2E and API automated test framework (Java) with more than 1000 verifications that identified more than 100 critical bugs and not only that. That reduced regression testing time from 4-7 hours to 0.5-1.5 hours, allowed us to perform long critical path tests more often during the development of new features and detecting bugs at an earlier stage. Parameterized tests using Excel sheets allowed us to change test datasets and expected results easily without changing program code in order to avoid the "Pesticide Paradox" and also quickly disable data sets to make the tests run as fast as possible.
More info in my CV.