Structural Design & Steel Calculation for Home Expansion

I'm looking for a professional with expertise in structural design and steel calculation. I am planning an extension on my residential property to create additional living space. This will involve both the alteration and removal of exterior and interior walls. It also require removal of two walls in the first floor as attached and addition of more space for first floor toilet and master room 1.
I need autocad for the first floor as I only have autocad for ground floor extension work.



Ideal Skills:
- Structural Engineering
- Steel Calculation
- Residential Design
- Project Management

Experience Required:
- Previous projects involving residential property expansion
- Demonstrated ability in structural design
- Proven record in steel calculation
- Experience in managing similar projects