Senior Service Delivery Manager for OS GmbH (m/f/d)

Purpose of the Role 

We are looking for a CSM (Customer & Service Management) Specialist who will support forecasting, budget planning, reporting, commercial processes, and operational administration across the department. 
The ideal candidate is structured, analytical, detail-oriented, and able to independently drive assigned financial and administrative tasks while collaborating closely with project managers, team leads, and service managers. 

Key Responsibilities 

Forecast & Budget Planning 

• Serve as a contact person for forecast and budget planning within the department 
• Accept, validate, and process requests related to forecast and budget planning 
• Participate in creating and improving processes, standards, and guidelines for planning 
• Independently plan and update projects and cost centers in the forecast & budget tool 
• Analyze variances and prepare insights for management decision-making 
• Discuss forecasts and budgets with project managers, team leaders, and department management 

Reporting & Data Maintenance 

• Maintain data for department-wide overviews and dashboards 
• Prepare figures for monthly reporting, management presentations, and financial reviews 
• Ensure accuracy and completeness of operational and financial data 

Bid Management Support 

• Support bid managers during public tender submissions 
• Create bid plans, coordinate formal documentation, monitor deadlines and milestones 
• Support communication and documentation handling throughout the tendering process 
• Service Management Support 
• Support service managers throughout the lifecycle of awarded projects 
• Manage formal tasks such as maintaining customer request data, initiating purchase orders, or sending welcome emails 
• Ensure timely updates and administrative follow-up for ongoing services 
• Invoicing & SAP Activities 
• Independently prepare and release customer invoices in SAP 
• Maintain quota tracking and contract monitoring 
• Ensure accuracy, timeliness, and compliance with internal financial processes