Vaitiare was born Vaitiare Eugenie Hirshon in Tahiti, French Polynesia, and was later known as Vaitiare Bandera, after she married producer Peter Bandera in 1994-97.

Once she graduated high school at the age of 16, she signed with a top modeling agency in Los Angeles and booked her first audition. A year after, at the age of 17, she auditioned for the internationally singer, Julio Iglesias' Christmas Special music video, filmed in her homeland. She was offered the lead female role in the remake of The Bounty (1984), starring a young Mel Gibson, and turned it down. In her early 20's, she starred in her first comedy film in Spain, Tahiti's Girl (1990), and then decided to study acting, back in Los Angeles, with renown acting coach, Larry Moss.

She hosted an award-winning 13 episodes documentary, "Tahiti and her Island", for TVE- Spain. She appeared in several TV ads and was named Ambassador of Good Will for a Disabled Childrens Charity in South America. Vaitiare was the Hispanic spokesperson for Miller Beer, from 1993 through to 1995. She has also done ads for Cox Communications, Sears, J.C. Penney, Toyota, Coors Dry, Caroche Jeans-Spain and Honda-Tahiti. She starred in the Spanish-language novella, Agujetas de color de rosa (1994), which was seen in 45 countries. She also made guest appearances on Married... with Children (1987), Out of the Blue (1995) and Acapulco H.E.A.T. (1993). She also had a role in the movie, U.S. Marshals (1998).

Vaitiare's best-known role was on Stargate SG-1 (1997), where she guest-starred in several episodes as Daniel Jackson's wife, "Sha're". She appeared nude in a scene of the pilot episode, Stargate SG-1: Children of the Gods (1997), in which she was forced to take a Goauld symbiote by the System Lord, "Apophis". It is on the set of the pilot episode of "Stargate SG-1", where she met the father of her child, Michael Shanks. They have a daughter, Tatiana Shanks, born in 1998. They remain good friends and share custody. Vaitiare is married to business owner Edgars Asars and have a boy, Kenta Asars, born in 2005, who also models and acts, since the tender age of 2.

She's appeared in various ads with her family and Vaitiare resumed her acting career.

Vaitiare resides in Los Angeles with her family.