In 2007, Gregor founded Neutron Games, which developed digital entertainment software. He was responsible for creating the product roadmap, building an agile development team, and managing a growing community in order to quickly validate new product ideas and features.

In 2013 Gregor joined etventure. As Head of Product, he has been part of 100+ digital product development projects for startups, SMEs, and corporate clients. He has seen different approaches on how to test core assumptions for new business ideas to find Product/Market Fit. Quite a few of those attempts worked out well and quite a few failed.

Currently Gregor is responsible for a team of 30+ Product Managers and UX Designers who are designing, validating, and implementing innovative digital products on a day-to-day basis.