Native of Zollikon, Canton Zurich. Trained as a travel agent in Schwyz. Worked for several years as a travel agent before taking over as manager first of the Vevey and then the Basel Centralbahnplatz branch of Kuoni. After twenty-three years in the travel industry made the leap to sales at the local radio station, Radio Basilisk. In charge of the ticket desk and shop at Basel Historical Museum since 2006. Completed the «Laufbahn bei Basel Stadt» training programme in 2010. Further training to become expert examiner for public administration and federally licensed vocational trainer. Supervisor of all the museum’s trainees on federal training programmes since 2016. Katja Kretz still loves to travel and is also an enthusiastic hiker. She is a member of the Business & Professional Women Club Basel and for six years served on its committee, for four of them as chairwoman.