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 

Required Skills & Experience 

• Analytical, systematic, and structured way of working 
• High flexibility, resilience, and willingness to learn 
• Strong personal initiative and ability to acquire new knowledge independently 
• Excellent teamwork and communication skills 
• At least 3 years of professional experience, including minimum 1 year in a comparable role 
• Confident use of MS Office suite (especially Excel and PowerPoint) 
• Strong sense of responsibility and reliability, with adherence to deadlines 

Nice-to-Have Knowledge 

• Experience with budgeting or forecasting processes 
• Basic understanding of project management or service management environments 
• Experience with SAP (invoicing, order management, contract handling) 
• Familiarity with corporate finance, reporting, or business administration topics 

Education 

• Bachelor's degree in Business Administration, Economics, Finance, IT Management, or a related field 
• Alternatively: completed vocational training with relevant practical experience 

Language Requirements 

• English: Must (B2–C1) 
• German: MUST (B2–C1) 

Benefits

We believe in balance between work and personal life. An attractive and extensive work-life balance portfolio guarantees lasting motivation for employees and thus a better quality of life, promotes physical and mental well-being and contributes to a positive work environment. All this with the aim of providing more freedom in reconciling work, career growth, private life and individual lifestyle. Therefore we offer to our employees over 25 different benefits to improve their personal and professional life in these areas:

• Financial benefits
• Benefits with focus on learning and development
• Benefits with focus on health and sport
• Benefits with focus on family and work – life balance
• Other benefits

For more information about our benefits click to  Benefits

Salary

Final salary is negotiable.

We are offering base salary depending on seniority level and previous experience of candidate. In addition to base salary we provide variable part and other financial benefits. Base salary will not be lower than 2600 € /brutto.

Additional information

• Please be informed that our remote working possibility is only available within Slovakia due to European taxation regulation.