The requirement is essentially the ability to develop WordPress sites from scratch, i.e. not with an existing theme. Your basic toolkit should include: expert level in HTML/CSS, Saas, ACF, etc.
QR Code Link to This Post
We are are an interactive agency that builds WordPress websites as a subcontractor for other agencies. We have been in business for 14 years and have built over 1000 custom WordPress websites.
Remote work is fine and you must have 2 examples of PSD to WP work. No 'off the shelf' themes please.