If Italy really and truly doesn't want a DNS server that is doing this to be accessible in Italy, go after Italian network service providers
They're already doing that for blocking IPs, and ended up blocking Google Drive and some Cloudflare CDN IPs.
While they don't write it explicitly I think they're looking for a good junior developer, given that:
they are not asking for Rust work experience, instead for good Rust knowledge and experience with open source development, both of which you can obtain on your own if you're a competent student
57k€ is not a bad salary for a junior developer in Europe
the two founders have graduated recently (~3 years ago) and have been working on Typst since then (their master thesis was on creating Typst itself), so it's likely they are looking for someone like them.