I think the best way is to work at a growing company and show leadership and growth potential. Start completing projects on time and you'll probably get promoted or tasked with additional sr level responsibilities.
If you don't get promoted, you at least have some talking points when leaving at your next interview which can place you in that seniority bracket.
If you don't get promoted, you at least have some talking points when leaving at your next interview which can place you in that seniority bracket.