Designer / technologist for dog harnesses

I am looking for a designer / technologist (or 2-in-1) to develop a anatomical, comfortable, and durable harness for dogs for mass production.

What is needed:

• develop the design and patterns of the harness

• adapt the model for size range XS–XL

• prepare the sewing technology (seams, threads, fittings, order of operations)

• create a technical specification for production

Input data:

• there is a sample size chart of the required type of harness

• I can send a physical sample of the harness by mail as a basis (not to copy 1:1, but to refine)

It would be a plus:

• experience specifically with dog equipment

• understanding of anatomy and loads

In the response, please indicate: experience, examples of work, cost, and timelines.