She was admitted as an Advocate and Solicitor of the High Court of Malaya in 1996. In addition, she is a senior professional lawyer specialized in construction, corporate litigation, arbitration and commercial matters. Since 2003, she is the Managing Partner of Messrs Firuz Jaffril, Aidil & Zarina where she builds her reputation on managing legal aspects of TNB, KLIA and other governments construction related joint venture projects. Besides her solid legal background, Datin Azreen is also a Managing Director for various private companies where she accumulated vast entrepreneurial experience such as organizing annual food feast, mountain biking and children with learning disability charity event for her Black Forest Golf Club in 2015, business setup and franchise expansion of Deluxe Merchant Sdn Bhds branded F&B cafe business in 2016 which involved Petronas Dagangan Berhad as its new franchise partner. She was awarded by NiagaTimes the Personaliti Industri Usahawan Malaysia in 2017 for her immense contribution to expand the F&B cafe franchise business .
Directorship of Public Companies
Ta Win Holdings Berhad Amway (Malaysia) Holdings Berhad