Residential HVAC Design for Permit

I'm seeking an experienced HVAC engineer to design and calculate for a heat pump system for a residential building. The design will be used to obtain a building permit.

Key Requirements:
- Design and calculation for heat pump HVAC system
- Include energy efficiency calculations

Ideal skills and experience:
- Professional HVAC engineering background
- Familiarity with residential building permit requirements
- Expertise in energy efficiency metrics and calculations
1800 sq.ft. single floor 9' flat ceilings,encapsulatd R20 walls, R40 roof
Please provide relevant experience and approach plus lead time in your bids.