I was the member of a 12 person engineering team as a software test engineer and my responsibilities are analysing software requirements, preparing test scenarios, executing exploratory, smoke, API and functional tests.
During the tests we did use shortcut and confluence for issue and sprint tracking, postman for end to end api tests, amazon cloudwatch for log monitoring and hasura interface for database cross checks and data manipulations.
The methodology used in rightnow.de, is an effective mixture of scrum and kanban with 1 or 2 week long sprints, daily meetings and also planning, retrospective meetings.