The Verdict: Not eligible
The digital nomad route excludes anyone working for an employer in Brazil, so it is closed to you. Look at the skilled migration quiz: a Brazilian employer can file for work residence for you.
The rule says in terms that working for an employer in Brazil, with or without a formal employment relationship, does not count. Contracting for a Brazilian company is still Brazilian-source work.
On the work route the company files the application, and the assessment matches your qualifications and experience to the role. If you could give up the Brazilian work and earn only from abroad, this route comes back into play.