career ladder
US /kəˈrɪr ˈlædər/
UK /kəˈrɪr ˈlædər/

1.
a sequence of jobs in a person's career, from entry-level to senior positions, typically within the same field or organization
:
•
She's steadily climbing the career ladder in her company.
•
Many young professionals are looking for clear paths on the career ladder.