For example, do you have a “Senior Test Manager”, a “Head of Quality”, a “Principal Tester” or something else?
I am looking for titles of specialists - if at some point, you move to generalists, “Software Development Managers” managing “Test Managers” for instance, the answer would be “Test Manager”. I also recognise test managers may well not be the senior testing professional in an org, just picking one title to use as a worked example.
If in doubt I am looking for the most senior test/quality specialist in your org. If you have a Test Manager and a Lead Tester in the same hierarchical, er, rung, feel free to mention both
Disclaimer to say - I hate job titles and hierarchy in general, but I am required to engage with it sometimes and feel it’s interesting to take the temperature of other organisations in doing so!