Structural engineer and stamp needed

Small addition to home, about 500 sq ft of conditioned space and a 500 sq ft unfinished basement. Continuation and redesign of previous project. Concrete work was completed and inspected during previous project. The foundation has been covered and protected from weather and elements from when that was completed until now. I am a drafter and have completed the design work for the redesign of the home. I am looking for an engineer to look at my work and complete the calculations for structural work and receive a stamp for the plans.