Sonja Koerner

Partner, Global Financial Risk Leader at EY

Speaker

Sonja Koerner is a Partner and EY Global Financial Risk Leader. With more than 25 years of experience, she advises global financial institutions on their most complex risk, regulatory and transformation priorities. Her expertise spans prudential regulation, governance, processes and controls, model risk management, risk technology and data.

Sonja has led major regulatory change and remediation programmes across multiple jurisdictions and regulatory regimes. She has also delivered risk transformations across all three lines of defence, strengthening resilience while improving capital and operational efficiency. Her work includes redesigning operating models, implementing offshore and nearshore delivery, modernising technology and data, and, more recently, deploying AI with robust governance and controls.

Sonja joined EY in Zurich and transferred to the UK practice in 2004, where she established and grew its quantitative and risk systems capabilities. She holds a PhD in Physics from the University of Technology in Vienna and an MSc in Mathematical Finance from the University of Oxford.