auto cad drawings for swimming pool company

For a swimming pool company we are looking for engineers to assist with producing bill of quantities, shop drawings, schematic designs, hydraulic and electrical calculations for swimming pools and water features. Job will vary from small drafting job for simple residential swimming pools to to complex water feature installations and commercial pools where the engineer will be involved from the tender stage in developing BOQs to develop shop drawings along with required calculations and schematic designs. The service provider will get compensated on for each project at a rate agreed on project start. Where also deadlines will be agreed. The service provider should be available for correspondence from 8:00am to 05:00pm EST when we are working on projects.