Istvan Koska

Istvan Koska is a Senior Scrum Master at Vodafone, where they focus on the B2B segment. Previously, they held pivotal roles as a Project Manager and Senior Scrum Master at IBM from 2012 to 2025, leading DevSecOps initiatives across Finance, Accounting, and Real Estate while ensuring compliance with security and data privacy standards. Istvan has also served as an EMEA SSSAP Operations Manager at GE, managing outsourced Accounts Payable Operations, and as a Project Manager at GENPACT, where they implemented financial workflows and executed quality projects using Lean Six Sigma methodologies. They hold a Master's degree in Economics and Management Studies from Debreceni Egyetem, which they earned between 1995 and 2001.