alterations to website & Add New Stockllist

I am looking for a skilled developer to make functionality improvements to my Opencart website and add new stockists using a CSV file.

Specific alterations needed:
- Implementing functionality improvements to enhance the overall user experience and site performance

Platform:
- The website is currently built on Opencart

New stockists:
- I need to add multiple new stockists to the website using a CSV file

Ideal skills and experience:
- Proficiency in Opencart and experience with making functionality improvements
- Familiarity with importing data from a CSV file and integrating it into an e-commerce platform