Our Team

Roy Agostino, Managing Director North America
Roy Agostino is a seasoned high technology executive with 20 years of marketing experience in both the consumer packaged goods industry (NIKE), as well as high growth technology firms like Crystal Decisions. Most recently Roy led the marketing function at Packeteer, Inc. as well as several Silicon Valley start-ups. Roy studied Arts at the University of British Columbia and Marketing at Pace University in New York.
Colin DuPlantis, Chief Architect
Colin is the technical visionary at Marketcetera, responsible for all aspects of product direction. He creates strategic partnerships with other market participants and open source community members to keep Marketcetera a vital contributor in today’s ecosystem. His extensive experience comes from over 25 years of software development and over a decade of building advanced trading technology and developing highly scalable low latency applications.
Sava Zxivanovich, Managing Director EMEA
Veteran European business leader founding software firms that pioneered usage encryption and transport solutions for medical software solutions, mathematical models for power consumption, and mathematical models for managing CCD read noise. Sava has championed the application of CUDA and FPGA solutions to issues confronting sell side institutions and exchanges. Sava graduated from Henley Management College.
Senka Zivanovic, Director of Engineering
Veteran Integration Leader with experience across multiple industries including medical technology, telecommunications, mobile industry, finance and banking. Deep expertise in UI engineering, Senka graduated from the University of Belgrade.
Milos Djuric, Lead Software Developer
Milos is a seasoned programmer with experience developing and delivering systems for medical & financial systems using Java, web platforms, iOS, Android and Google cloud. Milos is a graduate of the School of Mathematics at Belgrade University.
Graham Miller, Founder
Marketcetera founder Graham Miller has over 10 years of experience in the finance and software industries, most recently serving as the director of electronic trading strategies at a New York hedge fund. Prior to that Mr. Miller worked for Jane Street Capital, making markets in equity options on the floor of the American Stock Exchange and directing electronic trading efforts. During his tenure on Wall Street, Mr. Miller oversaw the development of several high-throughput black box trading systems for equities, options, ETFs and futures. Before joining Jane Street Capital, Mr. Miller assisted in the development of several products and companies at Reactivity, a software incubator turned network security company, which was acquired by Cisco in 2007. Graham holds bachelors and Master’s degrees in computer science from Stanford University, with a concentration in artificial intelligence.
Toli Kuznets, Founder
Founder Toli Kuznets brings extensive software development, client implementation and technical consulting expertise to Marketcetera, with experience in startup environments and Fortune 500 companies. Prior to Marketcetera, Toli implemented automated trading systems at a hedge fund in New York. Before that he was the first engineer at CenterRun, where he developed server software server software starting with alpha prototypes and working through multiple releases of the product suite. When CenterRun was acquired by Sun Microsystems in 2003, Toli transitioned to professional services and later into product management roles. The CenterRun product now forms the basis of Sun’s N1 datacenter automation and provisioning product suite. Toli holds masters and Bachelor’s degrees in computer science from Stanford University, with a concentration in human-computer interaction.