• Processing and reconciling credit card statements • Allocating and posting credit card transactions, e.g. fuel, handling, landing fees, catering, crew expenses and travel expenses • Obtaining and checking missing receipts from cardholders and relevant departments • Resolving discrepancies, disputes and chargebacks with card providers • For full-time positions: additional accounting duties, such as processing incoming and outgoing invoices, bank transactions and other general accounting tasks • Commercial or business-related vocational training, an ongoing degree (e.g. Business Administration, Economics or a related field), or professional experience in accounting • Initial knowledge of accounting principles, including debits and credits and charts of accounts, is an advantage • Experience in credit card or travel expense reconciliation is desirable • Previous experience in the aviation industry is preferred, e.g. with an airline, airport, handling agent, charter operator, business aviation or flight support provider, as well as familiarity with industry-specific costs and terminology • Confident use of MS Office, particularly Excel • Experience with MOSS or similar credit card processing software is an advantage • Very good German and good English skills, for communication with international service providers and card holders • Careful, structured and reliable approach to work • Discretion when handling sensitive financial and credit card data • Flexible working arrangements: full-time, part-time or as a working student (up to 20 hours per week) • Fair and competitive remuneration • Thorough training and onboarding in a friendly and supportive team • An exciting insight into the financial processes of the aviation industry • Opportunity for an extension or transition to a permanent position • Good transport links and the option to work from home • Additional benefits, including a contribution towards public transport costs, employee discounts, drinks and fresh fruit