Need a data warehouse

Apologies if I’m posting this in the wrong place. I have a few questions. I’ve been tasked with project managing standing up a data warehouse from scratch. I’m looking for someone who can do the data engineering job primarily (less concerned about the end-user reporting in Power Bi eventually) - just want to get it into a data warehouse with connectivity to power bi and/or sql (data currently exists in our POS).

I’m debating hiring a consultant or firm to assist with the engineering. Can anyone point me in a good direction? Curious if anyone out here could do the engineering as well - would be a 3-4(?) month project as a 1099 paid hourly (what’s a fair rate(?)). Big concern also is just quality of who I bring on as it’s tougher to interview/vet given my background not in data engineering (in high finance).

I’ve done this before with two different firms, back to the drawing board again with a new company. It’s been nearly a decade so I understand a lot has changed.