Optimize OpenCart Search with ElasticSearch

I'm looking for a skilled developer to enhance our website's search functionality, using OpenCart and phpMyAdmin. Our main goal is to speed up the search results, as the current wait times are too high.

Key improvements we want to implement include:

- Implement and configure ElasticSearch (Version 7.x)
- Apply recommendations from Google PageSpeed Insights
- Implement and configure AJAX

Ideal candidates will have:
- Strong experience with OpenCart and phpMyAdmin
- Proficiency in ElasticSearch, particularly version 7.x
- Familiarity with Google PageSpeed Insights
- Expertise in AJAX implementation

Please provide examples of similar projects completed. Thank you!