Dieste promoted Ciro Sarmiento from executive creative director to chief creative officer. Dieste's previous chief creative officer Paco Olavarrieta, will remain with the agency as a "Craft-Maestro," working on specific creative projects. Sarmiento joined Dieste in 2013 as an executive creative director reporting to Olavarrieta. "Ciro is one of the most accomplished creative executives in our field, respected and admired by our team, our clients and praised by his industry peers," said said Greg Knipp, CEO of Dieste. "And we felt like he was ready to take the helm of chief creative officer, giving continuity to the great momentum we …

Boston marketing firm Winsper named Robert McCarthy as managing director to oversee work "closely with clients to drive customer acquisition, retention and growth initiatives," said agency executives. Previously, McCarthy served as a vice president with Omnicom's Bernard Hodes Group and has worked with brands including Altria, Raytheon, Staples, Honeywell, Shire Pharmaceuticals and Vanguard.

The Vault NYC hired Jessica Werner as vice president of growth. Werner will concentrate on expanding the full-service advertising, production, and post-production shop. She is based in New York City and reports to agency CEO and founder Jon Paley. Werner has held senior advertising and business development positions at agency, media and sports companies, including, most recently, Taunton Interactive Media. Previously, she held senior sponsorship positions at Lifetime Fitness; Fast Company and Inc., Movieline/Hollywood Life; and at Mediacom, a division of Grey Advertising, where she worked on brands such as Diageo, Reebok, Mars Inc., GlaxoSmithKline, Sprint, Canon, Con Agra and Groupe Danone.

TBWA\Chiat\Day New York added a bevy of creatives to the office, beginning with Michelle Spivak as creative director and Josh Yeston as associate creative director, and senior creatives Cecile Pimont, Pieyre-Alexandre Treuil, Liz Agans and Mike Schneberg. Spivak joined TBWA from Code + Theory, where she was a creative director working on Chandon, 7UP, Jack Daniel's Tennessee Fire, Mott's, Snapple, and Dr Pepper accounts. Pimont and Treuil joined the agency as senior copywriter and senior art director from AKQA in Portland, where they worked on the Nike business, including Nike ID and Nike Global Football. Agans and Schneberg join TBWA …

MMI Agency named Nikki Oliver as an account director.

Jesse Raker joined SS+K as design director.  He was previously director of advertising and branding at VH1.

Pixability named Nancy Lazaros as chief financial officer.

RF|Binder named Scott Beaudoin as chief strategy officer and executive managing director of corporate & brand purpose.

Jorge Pomareda joined Cossette, Chicago as a senior art director. Pomareda spent the past seven years at Burnett/Lapiz in Chicago.

nFusion named Christopher Becker as media planner and Alan Loyola as assistant media planner.