Before joining RTÉ, she worked for the Dublin radio station, 'Raidió na Life'.
Ní Bheoláin began her career with RTÉ in 1994, presenting Nuacht RTÉ and in 1997, she became the presenter of News 2. Throughout the early 2000s, she had sporadic appearances on various RTÉ News programmes, including the Six-One News, the Nine O'Clock programme and on RTÉ Two's News programmes. In 2005, she became permanent co-presenter of the Six One News. In November 2013, Ní Bheoláin revealed that she would be leaving Six One News to pursue something new.