Clifford Tatum is a researcher at CWTS and a member of the Science and Evaluation Studies (SES) working group. He engages in projects involving open science, with a focus on epistemic practices in relation to socio-technical infrastructures. This work examines the ways in which science policy initiatives are translated into technical workflows and evaluation practices associated with e.g. institutional CRIS systems. Clifford is presently writing a PhD thesis on infrastructures of openness. Previously, he was project manager of ACUMEN (Academic Careers Understood through Measurement and Norms), an EU/FP7 collaborative project on evaluation of individual researchers. His background includes an MBA in International Business and an MA in Communication, and a BA in Industrial Design. After ten years as an engineer and project manager of large-scale systems integration, he left industry to pursue an academic career.