Steep Slope Living Space Addition

I'm seeking an experienced contractor to build a living space addition on a steep slope. The addition's primary purpose is to expand our living space.

Key Requirements:
- Build on a steep slope
- Create a functional and safe living area

Ideal Skills and Experience:
- Expertise in slope construction
- Knowledge of drainage and foundation work
- Experience in building living spaces

Please provide examples of similar work and any relevant certifications.