Mitarbeiter Kundenservice (m/w/d)

Conduct customer service via phone, email, and chat by advising clients on heating and cooling solutions while identifying upselling and reactivation opportunities. Maintain clean system records and collaborate cross-functionally to ensure smooth operations. Leverage existing relationships with established customers to drive sales growth. Join ThermoFlux in Mühlhausen to support the energy transition through modern appliance delivery. Work within a supportive team focused on sustainability and technical innovation, with opportunities for development into team leadership.