Marko joins Sellers Dorsey from the California Health and Human Services Agency, where he most recently served as Undersecretary. In this capacity, he managed 12 departments and five offices, overseeing more than 34,000 employees and a budget of $260 billion. Marko’s leadership focused on streamlining government operations, expanding access to safety-net programs, and advancing an equitable pandemic recovery. He served under two governors and three CalHHS Secretaries, spearheading large-scale strategic initiatives, implementing complex policies, and building cross-sector partnerships. Prior to his state service, Marko also held key roles at the federal U.S. Department of Health and Human Services.