Hydari joined Rasmala Holdings in 2012, serving as group CEO until 2021 and regaining the title in 2024. The firm had $1.5 billion in assets under management in 2025. In October 2025, the firm exited its Poseidon Fund at $500 million, delivering a return of over eight times to participating shareholders. Its flagship Rasmala Global Sukuk Fund generated a gross return of 7.92% in 2025. Hydari has held various senior leadership roles within the group, including CEO and Managing Director of its UK-based investment bank.