manual testing functional testing chrome devtools understanding of the principles of manual software testing; knowledge of testing theory; experience in creating test plans, user stories, test cases, check lists, bug reports. experience with bug tracking systems redmine and trello. experience with oxid, magento, opencart, shopware systems testing. experience with web applications (erp, crm, pim systems) testing. automated testing (selenium ide — basic level). sql (basic level) gui (web/desktop/mobile — browserstack) api testing (postman)