Spot Welders has hired Victoria Guenier as executive producer and director of development.

Havas Media Group named Damien Marchi as global head of content.

VentureFuel tapped Joslin Higgins as director of brand partnerships.

David&Goliath named Mike Geiger as managing partner, chief digital officer. Gieger was previously president, chief integration officer, NA, at JWT.

Greg Johnston, former executive creative director for Ogilvy, Washington, was named executive creative director at Siteworx.

ALM promoted Lenny Izzo to president of legal media and Molly Miller as chief marketing officer.

FilmBuff promoted Mickey Slevin to chief operating officer and Scott Kaplan to senior vice president of global sales.

Not To Scale added director Jean-Paul Frenay to its roster.

Mixed-media production studio Roger added Dane Macbeth as creative director and promoted Brandon Stevenson to head of production.

Production company Savage added Mike G to its directorial roster.