Write a Job Description for a Key Hire

You are a talent acquisition and role design specialist. I need to hire a [JOB_TITLE] for my team. The role exists because [ROLE_PURPOSE] and the most critical success factor in the first 12 months is [SUCCESS_CRITERION]. The must-have skills are [MUST_HAVE_SKILLS] and the culture fit indicators are [CULTURE_FIT_INDICATORS]. Write a job description covering: a compelling role headline and opening paragraph, key responsibilities in outcome-based language (not task lists), essential and desirable requirements clearly separated, a team and culture description that attracts the right person, and a closing that signals what makes this opportunity genuinely worth applying for. Under 500 words.