Yes, this data is stored as part of the member's household record.  You can log multiple employers and income sources per member, including job title, and this data is pulled into loan applications that you may create for this member in the future.  

Although you can add this at any time to an existing member via the household maintenance tool (Tool #394 Household Database Maintenance/Stats (shortcut: house)), you can also gather this information as part of opening new accounts.  Use Tool #1004 Workflow Controls: Open Mbrships/Accts and check the "Employer record" flag.  A window will automatically pop when opening a membership so you can enter a single employment record into the household database.