About us. Island Topsoil is a small family-owned company in Waianae, HI. We are fast-paced, customer-centric and collaborative. Our work environment includes a casual atmosphere and company perks. Applicants not already located in the Waianae area or not willing to relocate/commute to Waianae need not apply. This position provides project administrative support to the office team. Administrative Assistant Primary Responsibilities. Provides admini...