Wooden Retaining Wall Construction

I'm looking for a skilled contractor to build a wooden retaining wall. The wall is needed for leveling a slope and will be more than 6 feet in height.

Requirements:
- Use of durable, high-quality wood
- Proper construction techniques to ensure stability and longevity
- Experience with retaining walls, especially for heights over 6 feet

Ideal Skills and Experience:
- Carpentry and landscaping expertise
- Knowledge of local building codes and regulations
- Ability to provide a project timeline and stick to it

Please include examples of previous work and any relevant certifications.