Our Team
John Adler I Founder & CEO
John founded Greenback in 2002 and continues to oversee all operations of the firm. John has over twenty years managing companies and continues to act as a consultant and is an investor in a variety of entrepreneurial ventures including businesses in the hospitality, salon, commercial construction, and accounting industries.
Prior to founding Greenback, John held roles in the commercial construction, business banking, and credit card processing industries, including CRA compliance manager at First City Bancorp Texas and risk management at Southwest. John previously served on the board of the American Subcontractors Association.
John graduated from Wichita State University with a B.A. in Finance and Entrepreneurship and received an M.B.A. from The University of Texas - Austin. He is a varsity letter winner in WSU’s football and rowing teams.
For leisure, John enjoys water sports, traveling, and spending time with his family.
Katherine Montoya I Operations
Katherine assists with the day-to-day operations of Greenback.
Prior to joining Greenback, Katherine held positions in commercial sales management at Xerox Corporation and in business banking at Banco Popular.
Katherine graduated from the University of North Texas with a B.A. in Economics. She also holds a degree in advertising from the Universidad Tecnologica Equinoccial in Ecuador.
Katherine has a passion for the arts and enjoys attending opera and art museums. Likewise, she enjoys volunteering and being engaged in her surrounding community.
Ramiro Cazar I Portfolio Manager
Ramiro manages our portfolio and underwriting process for new clients.
Before working with us, Ramiro worked as a general manager in a Factoring company and has also held various positions in the financial area in different companies.
He graduated as a Commercial Engineer from the Pontificia Universidad Catolica del Ecuador and holds a master's degree in Business Administration from Universidad San Francisco de Quito.
Ramiro enjoys sports and spending time with his family and friends.
Brian Adler I Vice President
Brian plays a key role in all aspects of Greenback’s investment process from sourcing opportunities and deal execution to ongoing portfolio management. With a strong background in commercial finance and a track record of supporting clients in navigating funding options, Brian brings a practical approach to client needs.
Brian graduated from the University of Texas with a BBA in Finance and Accounting and holds the Certified Account Executive in Factoring (CAEF) designation issued by the International Factoring Association, underscoring his commitment to delivering knowledgeable and reliable financial guidance.
Vanesa Ibarra I Account Executive
Vanesa manages the US portfolio and contributes to the underwriting and onboarding processes for new clients, internal audits, and credit decisions. Vanesa is fluent in both Spanish and English.
Prior to joining Greenback, Vanesa worked as an administrative consultant in Mexico.
Vanesa graduated from Tecnologico de Monterrey in Mexico, with a B.A. in Administration and Business Strategy; and has a minor in Strategic Consulting.
Steve Gerstein I Accounting
Steve Gerstein manages Greenback’s daily financial operations in addition to working on Greenback’s underwriting committee. Gerstein is also the operating partner at Greenback’s affiliate company, Greenback Bookkeeping.
Prior to joining Greenback, Gerstein held various positions in corporate accounting and management at Maersk and Walgreens Corporation.
Steve graduated from the University of Nevada - Las Vegas with a B.A. in Accounting & Finance.
Annabell Pillajo I Account Executive
Annabell contributes to the customer support and portfolio servicing department, providing a high level of service and satisfaction at Greenback Capital.
Prior to joining Greenback, Annabell worked in Jimenez Corp, a Hardware Store in Ecuador.
Annabell graduated from Universidad de Guayaquil in Ecuador with a B.A. in Business & Management.
Annabell enjoys working alongside team spirit and motivating people. She enjoys workout, nature walks, and exploring new places with her family and friends.