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Our Leadership Team


Ben John

Chief Technology Officer

As Chief Technology Officer, Ben is responsible for AppNexus’ global technology organization, including architecture, product development, platform innovation, engineering and technology operations. Since joining AppNexus in January 2013, Ben has held several technical leadership roles transforming the engineering organization and managing platform scaling to enterprise standards. A hands-on technology leader, Ben has over 20 years of experience in leading global teams and building cross-channel marketing platforms, end-to-end eCommerce platforms, content targeting solutions and global banking trading systems. He worked on the first Artificial intelligence bots in the financial industry back in 2000s and Java Cryptography projects at Sun Microsystems.

Ben holds a Ph.D. in Computer Science in the open content space, where he specialized in machine learning and big data mining.