Career
She is a Deputy Minister for Works in the Barisan Nasional coalition government. Rosnah was elected to Parliament in the 2004 election, after being nominated by Barisan Nasional to replace its incumbent member Osu Sukam. Her election was unopposed.
Before her election, she was a lawyer, and the head of UMNO"s Puteri (female youth) wing in Sabah.
In March 2009 she became the head of UMNO"s women"s youth wing ("UMNO Puteri") and was subsequently appointed Deputy Minister for Health by incoming Prime Minister Najib Razak. On 16 May 2013, after the 13th General Election, she was shifted from Deputy Health Minister to Deputy Works Minister.