QA principles, SDLC, client–server and OSI model understanding;

Scrum, scrumban, waterfall, kanban\XP-sort of, agile practices;

Exploratory, sanity, regression, load, performance, cross-device\platform\browser testing, analysis of business requirements, test strategy and design, automation, tracking, monitoring;

JSON, CURL, python\php\js, nginx, widgets, cache, APIs, CMSs, analytics, FTP, SSH;

SQL, MySQL, PostgreSQL, Maria, Mongo via Heidisql\MySQLWorkbench\Terminal;

Git, Bitbucket, Bamboo, Jenkins, Docker, Lucidchart;

Jira, Confluence, Testlink, RNDmine, Testrail, Selenium, Playwright, Siege load, REST Clients, VMs, consoles and browsers sdks, mobile emulators, tracking tools, chrome extensions;