Looking to hire a freelance developer (per hour basis) to modify front-end flows

Looking for a freelance developer who can help with the below explained development and 2 other workflows required for the application.

We are building a vendor management/procurement tool for a client having Jewellery business.

My client has to enter details of multiple SKUs in a single Purchase Order i.e.1 form.

Difficulty - Existing form lets entities (1 SKU in form) 1 at a time that are filled in a single row.

Requirement - User can enter 1 purchase order number, 1 Creation date with multiple SKUs + Qty + Weight from a single form but its entry in schema must happen SKU wise.

Form fill up multiple rows at once in schema explained (attached).