Confidential job offer
Also: oferta confidencial, anonymous job posting
A job offer published with the employer's name hidden, so the board displays a placeholder employer and, often, a default logo in place of the real company.
On elempleo.com, 31.5% of 1,000 offers measured on 30 September 2026 were confidential. Returning the placeholder as if it were a company would attribute those offers to an employer that does not exist, which is why a null company name is the accurate value.