I doubt I could give you better advice than anyone else or the internet. Not trying to be dismissive, I just don't feel like I have a good handle on the question myself.
I can say that the trend at companies that pay well is that you will be able to pass an eng interview. More and more, it'll basically be "we expect you to be as good as an eng around your level, maybe one level less" and "we also expect you to be an expert at threat modeling", plus whatever is specific to your niche; for me it's detection and response, so I'm expected to understand operating system services, how attackers go about taking over a computer, the traces they leave behind, etc.
I can say that the trend at companies that pay well is that you will be able to pass an eng interview. More and more, it'll basically be "we expect you to be as good as an eng around your level, maybe one level less" and "we also expect you to be an expert at threat modeling", plus whatever is specific to your niche; for me it's detection and response, so I'm expected to understand operating system services, how attackers go about taking over a computer, the traces they leave behind, etc.