"Fast-paced work environment" actually means highly demanding, all-encompassing job. Whatever "role" you apply for will ultimately be expanded into 5 or 6 jobs. They will expect you to enroll in personal work at their organization in addition to your job. They will also expect you to enroll your friends and family in their programs. You will easily spend half your weekends and most weeknights here. They praise people who are willing to work even when they are sick and also repeatedly say that sleep is overrated. Bosses are bullies and pretend that it's in service of your growth.