Handlebars.js Developer Needed who also can help for Optimization and Sales Support

I’m looking for a skilled developer with experience in Handlebars.js to work on a simple task. The project involves making updates to a site while ensuring it is well-optimized for page speed. Before starting, I’d like a full data backup taken for safety, and after the development is complete, I’ll need some help with sales promotion strategies for the site.

If you’re detail-oriented, efficient, and can ensure smooth delivery, please get in touch!