HeadInvest Portfolio Administrator Portland, ME HeadInvest is seeking a Portfolio Administrator, to join their team in downtown Portland, Maine! This is a full-time, in-office position that plays an essential role in providing direct client services and works closely with portfolio managers and the client services team. The ideal candidate is a client-driven professional with industry experience that values a team approach and collaborative style and will ensure that HeadInvest’ s clients receive prompt, courteous and professional service.