Vahos is the former senior vice president, chief financial officer and treasurer of Pepco Holdings. He was responsible for Pepco Holdings’ financial planning and analysis, operational finance, accounting, treasury, and risk management functions.

Prior to joining Pepco Holdings in 2024, Vahos served as the senior vice president, chief financial officer and treasurer of BGE in Baltimore, Md., another Exelon subsidiary. During his time at BGE, he was responsible for establishing accounting practices related to the deregulation of the electric generation portion of the company and has served in supervisory capacities in both general and regulatory accounting. In 2010, Vahos was appointed executive director, corporate audit for Constellation Energy, where he directed internal audit and consulting engagements for Constellation New Energy and BGE. In 2012, he was named BGE’s vice president and controller, and was responsible for financial accounting and reporting, performance of controls, and preparation of financial reports for management, shareholders and regulatory agencies.

Prior to joining Exelon in 1998, Vahos served as senior accountant at KPMG Peat Marwick, LLP, focusing on assurance and consulting services, as well as compliance and financial statement audits.

Vahos previously served on the boards of directors for University System of Maryland Foundation and the Maryland Business Roundtable. He was the former chair of the YMCA of Central Maryland and a supporter of the United Way of Central Maryland. Vahos is a founding board member of the Association of Latino Professionals for America Baltimore chapter. 

Vahos holds a bachelor’s degree in accountancy, cum laude from Villanova University, and a master’s degree in business administration from Johns Hopkins University.