(GeekWire File Photo)Zillow Group’s layoffs will eliminate 91 jobs in Washington state, landing heavily on senior staff, according to a notice the company filed with the state Employment Security Department. Zillow Group is officially headquartered in Seattle, but the relatively small share of the layoffs in its home state (18%) reflects how distributed it has become. The list of affected job titles in Washington state is dominated by senior positions. It includes five directors and three senior directors, 14 principal-level roles, and a long list of senior managers and senior individual contributors. The cuts affect workers at Zillow Group’s headquarters at 1301 Second Ave. in downtown Seattle and employees working from home elsewhere in Washington.