The jobs being offered are typically money laundering (lavado de dinero / lavagem de dinheiro) which are highly illegal. It is possible that some other jobs offered may be "back office" functions, including translation into local languages.
The domains are very new, registered in the past two days to:
Ricardo Lopez Email: email@example.com Organization: Ricardo Lopez Address: ul. Liivalaia 34-10 City: Tallin State: Tallin ZIP: 15040 Country: EE Phone: +3.726317190
If you have any examples of mail using these domains, please consider sharing them in the Comments section. Thanks.