What is L7/L28 in Facebook-style?

In Facebook-style terminology, L7 and L28 refer to levels of employees and their responsibilities:

• L7 — is the level of a senior specialist or mid-level manager. Usually, these are experienced professionals who can independently lead projects, make decisions, and influence the team.

• L28 — is a higher level, often related to department heads or director-level positions. These employees are responsible for strategic planning, managing multiple teams, and large-scale directions.

In the context of retention, the difference in levels reflects the scope of responsibility: L7 may focus on optimizing specific products or features, while L28 involves shaping the overall retention strategy at the company or large business unit level.