Advanced Spanish Language Assessor

I am looking for a professional Spanish language assessor to evaluate advanced level Spanish language skills.

The assessment should focus on:
- Reading comprehension
- Writing skills
- Oral communication

Preferred format for the assessment:
- Oral interview

Ideal skills and experience include:
- Native or highly proficient in Spanish
- Extensive experience in language assessment, particularly Spanish
- Familiarity with formal assessment methods and tools
- Strong communication and interviewing skills
- Proficient in providing constructive feedback on language skills
- Ability to assess writing skills based on a verbal interview