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Tim Ruben
President & Chief Executive Officer

Tim Ruben
Tim Ruben joined USSI in 1994, and serves as President and CEO. Before stepping up to his current position, he was Senior Vice President of Marketing and Business Development. Previous to his time at USSI, Tim worked 14 years for IBM as a Business Unit Executive; he received a BA in Economics from Rice University, and an MBA in Quantitative Analysis from the University of Wisconsin, Madison.

 

 

Efrain Estrada

Senior Vice President, Operations

Efrain Estrada
Efrain Estrada joined USSI in January 2008 and oversees operations for USSI. With over 25 years of experience in the service sector, Efrain is responsible for managing customer and employee relations, operations personnel and ensuring efficient service delivery. Prior to joining USSI, Efrain worked in various managerial positions for A&L Service Industries and UNICCO. Efrain attended the Universidad Nacional De El Salvador in San Salvador, El Salvador.

 

 

 

 

Stephanie D. Nester

CFO

Stephanie Nester
Stephanie Nester joined USSI in July 1996. In her role as CFO, Stephanie oversees payroll, accounts receivable, accounts payable and purchasing departments and is responsible for producing timely and accurate financial statements, as well as protecting USSI’s assets. Stephanie graduated from Virginia Polytechnic Institute and State University, and is an active CPA licensed by the State of Maryland. She is also an active member of the American Institute of Certified Public Accountants (AICPA).

 

 

 

 

Danna Hewick, SPHR

Vice President, Human Resources, Vice President Business Development

 

Danna Hewick joined USSI in July 2013. In her role as Vice President, Human Resources, Danna oversees performance management, training and development, policy and procedure, recruiting and employment practices for both union and non-union staff. In her role as Vice President of Business Development, Danna is responsible for revenue growth, process improvement, sales strategy and implementation, and team development. Danna has over 15 years of strategic human resources and business development experience and holds a Bachelor of Science in Marketing from George Mason University.

 


 

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