Seline Guggisberg is a Major Account Executive at Die Schweizerische Post since July 2024, with a strong background in account management developed over a decade at APG|SGA AG. During time at APG|SGA AG, Seline held several roles including Leitung Partner und Account Management, Lead Account Management, Online Campaign Manager, and Verkaufsassistentin in the Backoffice Sales Consulting. Seline holds dual certifications from the Swiss Marketing Academy in Sales and Marketing, and a degree as Kauffrau EFZ from WKS Wirtschafts- und Kaderschule KV Bern, further demonstrating expertise in the marketing and sales field.