Ian Yorty, a former assistant county manager and tax collector, is becoming head of business development for a tax-collection and billing program owned by Grant Street Group.
"It would have been impossible for us to find a more qualified or respected professional to join our team in this capacity," said Myles Harrington, president of Pittsburgh-based Grant Street Group, in a news release.
Yorty could not immediately be reached on Monday. He has overseen ongoing discussion of building a new ballpark in or around downtown Miami, a project Alvarez highlighted in February's State of the County speech by saying: "We need to close this deal and make a permanent place in Miami-Dade County for the Florida Marlins."
Earlier this year, Alvarez reassigned him to run the Office of Capital Improvements - but took pains to emphasize the move was not a demotion "in any way, shape or form."