Ensuring factually correct and timely monthly reporting for the executive board, investors, and banks, including relevant operational key figures., Carrying out integrated annual planning and regular forecasts (P&L, balance sheet, cash flow, and covenants), including the creation of meaningful presentations for the executive board, investors, and banks., Further development and optimization of existing reporting, steering, and key figure systems., Preparation of consolidated monthly, quarterly, and annual financial statements for the corporate group (balance sheet, P&L, and liquidity calculation)., Setup and further development of non-financial KPIs and meaningful dashboards., Setup and further development of project controlling for in-house development and investment projects in the climate protection sector., Preparation of target-actual comparisons, ad-hoc analyses, and forecasts, as well as derivation of corresponding recommendations for action and measures., Conducting KYC/KYS checks for customers and suppliers.