our leadership

Founder / CEO & Creative Director
Roger Shepherd

Roger founded panOpticon in 2006 so he could manage the Mary Cassatt Online Catalogue Raisonné Project. He later expanded panOpticon’s mission (2010) when he created a web-based system that enables trained researchers to properly collect, document, manage and archive everything they need to produce verifiably accurate information about works of art and their histories.

Roger is a multi-disciplined visual artist, writer, curator, information architect, critical thinker, and leader in the domains of knowledge preservation & responsible design. Prior to panOpticon, Roger had a 35-year career as an educator in New York and Paris. He has a B.F.A. from The Cooper Union for the Advancement of Science and Art. He was awarded a Design Advancement Grant from the National Endowment for the Arts in 1987.

As panOpticon CEO, Roger sets the tone and the vision for the company. As creative director he continues to play the leading role in the development of the platform.



Vice President of Product Development
Susannah Shepherd

Susannah is the foremost expert in architecting digital catalogues raisonnés. She was previously Web Designer of the Mary Cassatt Catalogue Raisonné Online.

She was formerly the Design Director of Digital Media for McGraw-Hill Construction; Web Designer at Architectural RecordGreenSourceMyHouse; and Web Producer at Architectural Record.com.

Susannah earned a B.F.A in Photography from Parsons School of Design and a B.A. in Urban Studies from Eugene Lang College/New School University.

2010 Tabbie Awards: Gold winner for Best B-to-B Website
2010 Neal Awards: Best Integrated Package, Best Use of Video, Best Use of Social Media
2009 Tabbie Awards: Bronze winner for Best B-to-B Website
2008 Neal Award: Best Web site (100k–400k unique visitors)
2008 MIN Best of the Web Award: Website of the Year – Enthusiast
2008 MPA Digital Award: Best of the Web: Editorial Excellence, B-to-B
2008 Neal Award: Best Web site (100k–500k unique visitors), Runner-up for the
Grand Neal Award B-to-B Media Business Magazine: 10 Great Media Web Sites of 2007



Director of Research & Development
Jessie Sentivan

Jessie is dedicated to helping clients meet their cataloguing needs and to achieve their long-range goals. She looks for ways to improve workflow within the tool and with our users throughout the industry.

Jessie is project manager of the Helen Frankenthaler Catalogue Raisonné. She formerly held the position of curatorial assistant at the Williams College Museum of Art, Williamstown, MA. She is editor of the Kay Sage Catalogue Raisonné (Prestel, 2018) and contributing editor of the Hans Hofmann Catalogue Raisonné of Paintings (Lund Humphries, 2014). Previously, she served as a researcher for the forthcoming Arthur Dove Catalogue Raisonné.

Jessie received a B.A. in art history from Hamilton College, and continued her graduate work in the Museum Studies program at the Harvard Extension School, with a focus on collection management and provenance research.


Chief Technical Officer
Dana Spiegel

Dana is a Product and Software Engineering expert who helps early-stage businesses get off the ground.

Previously, he was the VP of Product and Engineering at Axial, which operates a private network for qualified buyers and sellers of privately held businesses.

Dana has a Bachelor’s Degree in Brain and Cognitive Sciences and Artificial Intelligence from MIT and completed a Master’s Degree at the MIT Media Lab.


Chief Product Officer
Karen Schlesinger

Karen is a sustainable business expert who specializes in helping teams work through strategic and company-building challenges.

She works on product strategy and development, operations and process management.

Karen has an MFA in Imaging Arts & Sciences and an MBA in Sustainable Management.
Karen specializes in sustainable tech and “tech for good.”