General Brazilian
permanecer engajado/engajada
most common usage across Brazil
Rio de Janeiro
manter-se engajado/engajada
alternative phrasing with 'manter-se' is also acceptable
São Paulo
continuar engajado/engajada
using 'continuar' is also common in business contexts
Portugal
manter-se empenhado/empenhada
Portuguese prefers 'empenhado' over 'engajado' in some contexts