Unger began her career as in-house counsel at MCA/Universal Studios (now NBCUniversal) and remained there for 15 years, rising to vice president, MCA Services Corporation.

[8] Unger then became CEO of the Starbright Foundation, working with Steven Spielberg, chairman,[6] to improve the quality of life for children with serious medical conditions by providing entertainment, education and family activities.

After Starbright, Unger was the Publisher and Editor-in-Chief of Talking Heads,[6] the quarterly publication of the Worldwide Entertainment and Communications practice of Spencer Stuart, one of the three largest executive search firms in the world.

[23] In the latter part of 2007 she developed and ran the website Election Preparedness,[24] of which she was co-founder and editor, as well as the producer on several related videos and radio spots.

[34] In response to the COVID-19 pandemic in the US, Unger highlighted disruptions to the 2020 US presidential election and the issue of acquiring Real IDs in the face of travel restrictions.

Unger has served on the boards of the Santa Monica-based KCRW[48] and the Valley Community Clinic of North Hollywood, CA,[49] including as Vice Chairman.