If you're wondering whether numexsarl.tech is a scam, the short answer is no — the evidence points to a legitimate personal portfolio. The site belongs to Elie Liking Njock, a web designer and developer based in what appears to be France or Cameroon (the contact gives both a French hosting address and a Cameroon phone number). That kind of upfront information is exactly what you want to see from a freelancer's website.
The big caveat is the domain's age: it was registered just 5 days ago. Most established designers have a web presence that goes back months or years, so you're dealing with someone brand new to this online identity. That doesn't mean the work is fake, but it does mean there's no digital history to back up claims.
What should you watch for if you're considering hiring this person? Ask for links to live websites they've built. A genuine developer should have a portfolio of actual projects to share. Also, test the contact methods — send an email or WhatsApp message and see how they respond. For a portfolio site of this kind, a missing privacy policy is not concerning, but the large number of external scripts loading the page (34) is odd. It could be analytics or performance plugins, but it's worth asking about if you end up working together.