Residential Steel Detailing & Load Calculations

I'm seeking an experienced steel detailing professionals to create full fabrication drawings for a building. The project requires adherence to American Institute of Steel Construction (AISC) standards.
And I need an an experienced structural engineer to perform essential calculations for this project. This includes:

IF YOU DO ONLY STEEL DETAILING OR ONLY CONNECTION DESIGN CALCULATIONS LET ME KNOW

1.For Steel Detailing

Key Responsibilities:
- Develop comprehensive steel detailing for a building structure
- Create full fabrication drawings
- Ensure all designs meet AISC standards

2.For Connection design calculations

- Load Calculations: Determine the dead load, live load, and wind load.
- Stress Analysis: Evaluate the stress on various components of the structure.

Ideal candidates should have a deep understanding of structural engineering principles and steel detailing

Please provide examples of similar projects you've worked on in the past.

See the structural drawings for;

New stair location framing.
Old stair location infills
Extending the existing elevator up and reinforcing around 3 sides. At 4.6/4.1 lines
New mezzanine platform with hangers above to support mezzanine.
Reinforcing the high ceiling girders above the mezzanine.
New elevator/stair opening between 2/3 line.
And whatever else I have not seen yet