Peter Arbitter has been working in the ICT industry since 1991. After holding various executive positions at Siemens and T-Systems, he moved to Microsoft Deutschland GmbH in 2011 to head up technical support for enterprise customers. After two years, he was responsible for the business unit "Cloud & Enterprise".

In 2016, Peter Arbitter re-joined Deutsche Telekom to lead the Portfolio- and Product-management unit of the German B2B entity. Since January 2024 he has taken over the End-to-End responsibility for the Network API Exposure business at Deutsche Telekom.