Interview as a Service, or IaaS, refers to conducting interviews on behalf of a client organisation. Interviews for hiring professionals require a high level of knowledge, expertise in the concerned subject matter, and effective people skills. Many companies, especially small and mid-sized ones, prefer to outsource technical interviews. They get a pool of potential employees, thoroughly vetted by skilled professionals, with detailed feedback and reports on everyone. Companies don’t need to dedicate their own resources to interviewing.