at the helm of
US /æt ðə hɛlm əv/
UK /æt ðə hɛlm əv/

1.
no comando de, à frente de
in charge of an organization or activity
:
•
She has been at the helm of the company for five years.
Ela está no comando da empresa há cinco anos.
•
The new CEO is now at the helm of the struggling startup.
O novo CEO está agora no comando da startup em dificuldades.