For more than 17 years, Markowitz provided finance and risk management advice to institutions including Switzerland-based Syngenta, Inc., the world's largest agrochemical company, where she served as a lead international treasury/financial operations consultant.

While at Syngenta, she was tasked with designing and implementing a global treasury operation and financing post demerger.

Prior to that, she served as a treasury and risk manager for one of the largest pharmaceutical benefit management companies Express Scripts, Inc. Additionally, while at Mallinckrodt, Inc., a medical device firm, Markowitz worked to create the global treasury department after its divestiture from IMC Global.

In addition to designing and implementing financial operations departments, Markowitz has had a deep background in running treasury and risk management departments, assessing insurable risks and evaluating insurance, treasury and financing alternatives.

[citation needed] In all her roles, Markowitz specialized in helping private sector companies successfully design and implement new systems or scale their existing processes, systems and staffing to meet the needs of a hyper-growth environment.