Private Single-Engine Airplane Design

I'm seeking an experienced aerospace engineer to design a private single-engine airplane for recreational flying. The aircraft should comfortably accommodate 3-4 passengers.

Key Requirements:
- Design should prioritize safety, efficiency, and comfort
- Must include detailed schematics and specifications
- Consideration for aerodynamics and fuel efficiency

Ideal Skills and Experience:
- Background in aerospace design, especially with single-engine aircraft
- Strong understanding of aviation safety standards
- Proficient in using design software and creating technical documentation

Please provide a portfolio showcasing relevant projects.