Discussion on question by k--: I think I am being perceived as too junior in job interviews despite my experience. What can I do to prevent this?

"Seniority" is not just "X years of experience with technology Y"; it often involves "soft" skills like leadership, dealing with stress, handling difficult clients, navigating company's political landscape etc.

Bear in mind that people who are interviewing aren't that good at telling a good employee from a bad one, that's why epic developer tests are in fashion. But its also why and how age/sex/race/cultural biases creep into the process. Just because these interviewers say these things, doesn't mean there is any truth to it or that they know what they are talking about.