If you truly have the knowledge and judgement(!) to justify a senior position, regardless of years of experience, you should have no trouble landing such a position.
There may be some companies with biases that will prevent it, but there are plenty of companies that don't care how old you are, what you look like -- just that you're really good at what you do.
But be aware that many people overestimate their abilities or undervalue the judgement that years of experience bring. There's a lot of value in having been around long enough to see things come and go. To have made lots of mistakes and learned valuable lessons. Some people really are so good that they can skip much of that, but it's very rare. The only safe bet is to assume you're not one of those people.
And I wouldn't get too hung up about titles. If someone wants to call you "Junior Dog Walker" but pays you and treats you like you want to be treated then don't worry about it.
There may be some companies with biases that will prevent it, but there are plenty of companies that don't care how old you are, what you look like -- just that you're really good at what you do.
But be aware that many people overestimate their abilities or undervalue the judgement that years of experience bring. There's a lot of value in having been around long enough to see things come and go. To have made lots of mistakes and learned valuable lessons. Some people really are so good that they can skip much of that, but it's very rare. The only safe bet is to assume you're not one of those people.
And I wouldn't get too hung up about titles. If someone wants to call you "Junior Dog Walker" but pays you and treats you like you want to be treated then don't worry about it.