An external worker (translator, revisor, ...) can accept the job through their Wordbee workspace in one of several ways depending on the project type. If the job has already been assigned to you, then you just need to confirm you are going to do the task by changing its status to "in progress". Find all the details to achieve this below:
Access the job page
You can access any of the jobs directly from the home dashboard or by clicking/hovering the Jobs link in the main bar.
To accept any job proposal/assignment, select any of the recent jobs with status not started and access the job details on the next page. Note the task + languages column already tells you if you are part of a job proposal, or if the job has been assigned to you: