Residential Framing & Roofing Certification Needed

I am midway through building a secondary residential property and now need a licensed structural engineer to review and certify the framing and roofing before I move any further. The house is about to hit construction... (Budget: $3000 - $5000 AUD, Jobs: Architecture, AutoCAD, Building Architecture, Building Certification, Building Design, Building Engineering, Building Regulations, Civil Engineering, Construction Management, Structural Engineering)