paygrade

/P EY1 G R EY0 D/
noun
  1. 1

    A level indicating a base salary (in the US applying to military and government employees).

  2. 2

    Level of authority or responsibility (since pay rate, authority and responsibility generally increase similarly).

Source: https://en.wiktionary.org/wiki/pay%20grade, https://en.wiktionary.org/wiki/paygrade