This smells of a scam, guy has no Linkedin profile, and the company doesn't exist other than on the web. Cut and paste link in the email. When you run their website into the website scam checker you get:
The owner of the website is using a service to hide their identity on WHOIS
According to Tranco this site has a low rank
High number of suspicious websites on this server
The registrar has a high % of spammers and fraud sites
This website is (very) young.
This website appears to be hosted by a company with a bad reputation.
Report a Scam
