Maybe you could enlighten the rest of us then. According to your favorite definition, what does senior mean, what does seniority mean, and what's a term for someone who knows what they're doing?
You need time to accumulate experience. You need experience, time in the proverbial trenches, to be a senior engineer.
You need to be doing different things too, not just implementing the same cookie cutter code repeatedly. If you are doing that, and havent automated it, you are not a senior engineer.