Owner's engineer

Owner's Engineer or also known as Client's Engineer, Lender's Engineer or Independent Engineer, is a term often given to the representative of the commissioning company of a construction or engineering project. It refers to the personnel involved in technical Due diligence.

Most often, an Owner's Engineer is an independent third party or subcontracted role; undertaken to ensure that the technical and build contractors are adhering sufficiently to the project specification. Owner's Engineers also fill gaps in resources and expertise for a project.

Ordinarily, the role is separate from the Project Manager's role as this often involves overseeing the technical, financial and commercial due diligence aspects of the works. Owners engineers are usually a "third party" overseeing the executing parties activities throughout the project life

Functions often include:

" General reporting to owner on the basis of technical and business competence 3263

...
Wikipedia