AJ Mamatalieva is a Private Client Associate and a member of the Private Client Service Team. She works closely with colleagues across the firm to deliver exceptional service and support to clients, while contributing to initiatives that enhance the overall client experience.

Prior to joining KJ Harrison Investors in July 2025, AJ served as Business Development Manager at Middlefield, where she supported the retail sales team by promoting the firm’s suite of mutual funds and ETFs. Her role focused on building relationships with advisors, facilitating product education, and driving investment into the firm’s offerings. She also held the position of VP of Institutional Assets at Northern Trust, where she played a key role in supporting the sales team and contributing to the growth of the Asset Servicing business.

She holds a Bachelor of Business Management with a major in Economics from Toronto Metropolitan University (TMU) and is currently completing her securities registration courses. In her spare time, she enjoys reading, cooking, and travelling.