progression
noun [ U ]
uk/prəʊˈɡreʃən/ us/prəˈɡreʃən/the process of changing or developing towards an improved situation or state:
(a) progression toward(s)/to sth The progression towards fairer and more open markets is happening slowly.
She spent three years as a senior manager, and from there it was a natural progression to the post of chief executive.
The advertisement for the position promises "rapid salary progression."
See also
career progression