Sales feature banner

Meet our North American team

When you’re seeking a solution to a critical challenge, you want to speak to someone that understands your situation. Our team are industry experts who work to not only find you the right solutions, but the answers that will push you forward.

  • Jim Serafin


    Jim is responsible for operational oversight across all divisions of Cartesian. He also directly leads all North American operations.

    Read more
  • Ron Angner

    Ron Angner, PhD

    Senior Vice President, Network and Operations

    Ron leads the Sales Support & Delivery team at Cartesian. In this capacity, he serves as General Manager of the Cartesian OSS/BSS practice and is Cartesian's senior Operations Executive.

    Read more
  • Rick Gasloli

    Rick Gasloli

    Senior Vice President, Strategic Development

    Rick is responsible for identifying and developing business/partnership opportunities, and the capabilities needed to support them at Cartesian.

    Read more
  • Brad Bortner


    Brad leads custom primary market research and other strategy engagements in Cartesian’s strategy practice.

    Read more
  • Joanna Cline

    Vice President, Human Resources

    Joanna leads Cartesian’s Human Resources and Recruiting teams. 

    Read more
  • Nick Jessee

    Principal, Strategy

    Nick is a Principal on our Boston-based Strategy team.

    Read more
  • Samuel Kornstein, CFA

    Vice President, Strategy & Analytics

    Sam is a Vice President in Cartesian’s Boston office, with responsibilities for client development and engagement management.

    Read more
  • Mark Markowitz

    Mark Markowitz

    Vice President

    Mark is responsible for business development efforts in the Tier 1 telecommunications carrier industry and brings over twenty-five years of experience in IT and consulting to Cartesian.

    Read more
  • Julie Mendenhall

    Julie Mendenhall

    Vice President

    Julie is a seasoned professional with in-depth knowledge of the Cable and Telecom industries.

    Read more
  • Rishi Modha

    Principal, Strategy & Analytics

    Rishi is a Principal in Cartesian’s Boston office and is responsible for leading strategy and analytics engagements.

    Read more
  • Dale Reynolds

    Dale Reynolds

    Vice President

    Dale is responsible for the sales and consulting services of the North American communications industries.

    Read more
  • Don Zurawski

    Don Zurawski

    Vice President, Client Delivery

    Don works closely with clients to provide insight into organizational improvement and optimization of existing IT and functional activities.

    Read more