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Konstantinos Wahner Kefalas is an experienced professional in the customer service and travel operations sectors with a career spanning over two decades. Currently serving as a CS Quality Specialist at Etraveli Group since December 2018, responsibilities include auditing customer service agents and investigating mishandled inquiries. Prior roles include Travel Operations Agent, where tasks encompassed reservation management and second-level support, as well as various customer service positions at Teleperformance Greece, WISAG Passage Service GmbH & Co. KG, airberlin, and Germanwings GmbH, emphasizing ticketing, compliance, and customer support. Konstantinos also has a background in athletics as a semi-professional American football player and completed military service with the German Paratroopers. Education includes a degree in Aviation Business from Trainico GmbH and studies at Fachhochschule für Verwaltung und Rechtspflege in Berlin.