Werkstudent/in Finance/Controlling (w/m/d)

Review and process invoices, maintain and develop reporting structures, and integrate into planning processes while coordinating with various departments. Handle administrative tasks such as creating client project timesheets, manage incoming mail, support audits, project accounting, and invoicing. Document accounting processes to facilitate continuous improvement and assist in preliminary payroll accounting. Prepare materials for board and investor meetings. Support the team with approximately 20 hours per week in a flexible schedule.