1. An independent professional who works on a project basis in a specific field or area of expertise, without a permanent employment contract
The company hired a specialized freelancer to develop their mobile application
A empresa contratou um freelancer especializado para desenvolver seu aplicativo móvel
2. A self-employed worker with advanced skills or qualifications in a particular discipline
She works as a specialized freelancer in digital marketing strategy
Ela trabalha como freelancer especializada em estratégia de marketing digital