Philippides became CEO of Mashreq Capital, a wholly owned subsidiary of Mashreq, in 2024. The firm had $1.34 billion in assets under management in FY2025. In 2025, Mashreq Capital launched BITMAC, the region's first Bitcoin and gold-inclusive multi-asset class fund, and the Mashreq Al Islami Equity Fund, as well as building its proprietary strategic multi-asset allocation framework. Philippides also serves on the board of the Gulf Capital Market Association.