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Marcel Ratajczyk is a seasoned professional in customer success and investment management, currently serving as a Customer Success Manager at Affinity.co since October 2021, specializing in relationship insights and deal management for the finance sector. Prior roles include Onboarding and Software Implementation Manager at LINK - TikTok Brand Factory and Business Development & Partnerships Associate at the same organization, complemented by experience as a Summer Venture Intern at US Angels, where Marcel focused on biotech and healthtech investments. As an Investment Analyst at Kontora Family Office, Marcel contributed to significant real estate and M&A transactions, managing investments ranging from $5 million to $600 million. Academic credentials include an Executive Program in Business Analytics from Harvard Business School and multiple master's degrees in Finance and International Business from Hult International Business School, alongside a bachelor's degree in Business Administration from the University of Hamburg.