Meet the Leadership Team


Gary Nakamura

Chief Executive Officer

Gary is Chief Executive Officer of Concurrent. He joined Concurrent in January 2013 to lead Concurrent through its next phase of growth. Gary has a highly successful track record including significant contributions to the explosive growth of Terracotta where he was SVP & General Manager. Gary is uniquely qualified to lead Concurrent given his extensive background in open source and commercial enterprise software.

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Chris K. Wensel

Founder & CTO

Chris is the Founder and Chief Technology Officer of Concurrent and lead developer of the Cascading open-source project. Cascading is the de-facto standard application framework for building and deploying large scale data processing applications. Chris has over 20 years of industry experience- focusing over half his career on big data and big audience style problems and technologies.

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Paul O’Leary

VP Engineering

Paul joined Concurrent in June 2013 and brings more than 20 years of engineering and senior-level experience to the company. Paul is responsible for managing the Concurrent’s product development and product operations. He most recently served as founder and CTO of Quantivo Corporation, a cloud-based analytics and Big Data management company, which was recently acquired by Aggregate Knowledge.

Prior to Quantivo, O’Leary also held various vice president of engineering and senior-level roles at Privia, Inc., Proveer, Kontiki, Broadbase and IBM.

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