Jeremy Wacksman was promoted to chief marketing officer at Zillow.

WealthEngine hired Rob Hines as chief revenue officer.

Giant Spoon hired Veronica Brothwell as senior strategist. She will drive strategy and idea generation for the STX Entertainment account, along with other client projects, and be based out of the agency's LA office.

Frequency540 hired Melissa Healy as creative director.

WONGDOODY Seattle added Stacy McCann as senior director of integrated production.

DigitasLBi tapped Lauren Bloom Clifford as vice president, group director and head of Digitas Studios for Boston and Detroit.

NBCUniversal’s Hispanic Enterprises and Content promoted Lleni Sandoval to vice president, human resources, Hispanic enterprises and content.

Narrative named Nathan Phillips as chief creative officer.

Christopher Kief joined 360i as head of technology, reporting to Pierre Lipton, chief creative officer. Kief will oversee the agency's technology department and build out the 360i Innovation Lab that explores and invents new technology and media solutions for the agency and its clients. He joins 360i from Saatchi & Saatchi NY, where he most recently served as chief technology officer, working with clients such as P&G, General Mills and Walmart. Prior to that, Kief oversaw technical strategy and execution for TBWA\Worldwide, where he also led the agency's product development unit. "We're tremendously excited about Chris' arrival," said Lipton. "He …

Doner hired Marcus Collins as senior vice president, executive director of social engagement. Collins will lead the agency's social practice and report to Liz Boone, executive vice president, chief marketing officer, Doner. Most recently, Collins was executive director of social engagement at Translation in New York. While there, he developed and led the social engagement practice for the agency. Prior to that, Collins ran the Microsoft, GORE-TEX and Colgate Palmolive accounts at Big Fuel Communications. "We're thrilled to attract such a high-caliber talent like Marcus," said Boone. "With his experience and leadership, we'll better position our agency and our clients …