A job description is a written explanation that outlines the essential responsibilities and requirements for a vacant position.A job description is a written explanation that outlines the essential responsibilities and requirements for a vacant position.A job description is a written explanation that outlines the essential responsibilities and requirements for a vacant position.A job description is a written explanation that outlines the essential responsibilities and requirements for a vacant position.A job description is a written explanation that outlines the essential responsibilities and requirements for a vacant position.