Qasim joined Rothschild & Co, a global investment bank, in March 2017 and became Director in April 2025. He was also a founding member of its investment banking office in Riyadh in 2024. Qasim serves as a strategic financial advisor to regional sovereign wealth funds, including the Public Investment Fund, as well as government entities, private and listed companies, family offices, international private equity funds, and regulatory bodies. Since assuming his current role, he has advised on 10 deals in the Middle East totaling $10 billion. He joined PwC at the age of 17.