Douglas has been investing since 1996. He joined Platinum Asset Management upon graduation. He started his career covering Asia, before shifting his focus to the technology sector globally. His coverage shifted back to Asia in 2014 when he joined the Platinum Asia team. He joined PM Capital in 2018 as a Portfolio Manager. He covered a diverse range of sectors while he was with PM Capital. Douglas has navigated through multiple market cycles in his time. 

He holds a Bachelor of Commerce (Finance) and a Bachelor of Laws degree from the University of New South Wales.