Puan Rahana started her career as Trainee Officer, Corporate Services Department with Raleigh Berhad (now known as Inter-Pacific Industrial Group Berhad) in 1984 before she extended her career into investment banking by joining Aseambankers Malaysia Berhad (now known as Maybank Investment Bank Berhad) in 1985. 

In 1996, she joined Puncak Niaga (M) Sdn Bhd as the General Manager, Corporate Finance. In 2001, Puan Rahana took a break from the corporate sector and undertook several consultancy assignments from various entrepreneurs. 

In 2014, Puan Rahana took up the position of Chief Financial Officer in ORO Financecorp Ltd, a licensed microfinance corporation in Phnom Penh, Cambodia. 

Upon her return to Malaysia, Puan Rahana joined Tass Teck (Malaysia) Sdn Bhd, an IT specialist company, as the Finance Consultant in July 2016 and subsequently promoted to Director of Finance in March 2017 and holds the position till now.

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