Mbasa joined Mazi Asset Management in May 2017, following her tenure at Ernst & Young and Arqaam Capital in Dubai. She was promoted to Deputy Head of research in March 2024. Her investment philosophy is rooted in pragmatism, guided by Jack Welch's maxim: "Face reality as it is, not as it was or as you wish it to be." She plays a key role in shaping Mazi's research strategy and investment decision-making.