Jobs at small San Diego companies nobody posts about after 18 years as a store manager

A friend who works at a local manufacturer says there are openings not advertised online. It has been a long 26 weeks. They prefer people who can start within a couple of weeks. Should I visit in person?

Small employers often hire on recommendation. Ask neighbours, former co-workers and your library.

Visiting in person worked for a trades job. For office jobs, email was better.