How long does it usually take for a beginner to adapt and immerse themselves in a new project?

For a beginner specialist, adaptation and immersion into a new project usually take from 1 to 3 months. During this period, it is important to familiarize oneself with the project's architecture, technologies used, codebase, and development processes. The time may vary depending on the complexity of the project and the quality of documentation.

For example, the first two weeks are often spent studying the code and understanding the business logic, then — performing small tasks under the guidance of experienced colleagues.