Shopify Personalisation Integration Specialist Needed

I want every home-decor item in my current Shopify catalogue to support true on-site personalisation. That means plugging both Gelato and Customily into the store, configuring them so customers see live previews while they add text, upload their own images, and play with colour choices, then sending those approved designs straight through Gelato for friction-free fulfilment.

All of my products are already live, so the work has to happen on production without disrupting sales. I’ll rely on you to:

• Install and connect Gelato and Customily, mapping every active SKU.
• Build the personalisation templates for text, image-upload and colour-selection options.
• Test the full journey—preview, cart, checkout, and automatic order routing—to be sure nothing breaks.
• Optimise any theme or Liquid edits for speed and mobile.
• Hand over clear instructions so my team can maintain or extend the set-up later.

If you’ve done similar end-to-end Shopify integrations, especially with Gelato’s API and Customily’s designer, I’d like to hear how you’ll tackle the roll-out and safeguard the live store while you work.