Woocommerce Product Filters Implementation

I'm looking for a skilled Woocommerce developer who can implement product filters on my clients website. The filters required are like these

https://boernlille.dk/vare-kategori/overdele/
https://boernlille.dk/vare-kategori/sko-stroemper/

We need to replace the old filters and code, and instead use Woocommerce default filters. We have issues with filters using to much server capacity, and makes the site go down when alot of traffic.

Website is live and mistakes and downtime is not a choice.

Ideal Skills and Experience:
- Proven experience with Woocommerce
- Expertise in implementing product filters
- Good understanding of user interface design
- Ability to integrate product availability into filters