go-getter
🇺🇸
/ˈɡəʊ ɡetər/
🇬🇧
/ˈɡəʊ ɡetə(r)/
A person who is very determined and proactive in achieving their goals, especially in a professional setting.
She's known as a go-getter in the company because she always finds ways to complete her tasks efficiently and effectively.