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

Our brand Deutsche Telekom IT Solutions Slovakia entered the life of Košice region in 2006 under the name of T-Systems Slovakia and ever since has been inextricably linked with the region when became one of the founding members of Košice IT Valley. We have managed to grow from scratch to the second largest employer in the eastern part of the country with more than 3900 employees. Our goal is to proactively find new ways to improve and continuously transform into the type of company providing innovative information and communication technology services.

Join the team at Operational Services GmbH, within Deutsche Telekom Systems Solutions Slovakia, providing opportunities for IT infrastructure experts in Slovakia. OS is one of the leading ICT service providers in the German market and acts as a key driver of digitalization for medium-sized companies. With nearly 1,300 highly qualified specialists, OS designs, operates, and supports modern IT systems, ensures long-term service continuity, and maintains the availability of critical business processes.

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

Requirements

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; Bachelor's degree in Business Administration, Economics, Finance, IT Management, or a related field; Alternatively: completed vocational training with relevant practical experience; English: Must (B2–C1); German: MUST (B2–C1)

Nice to have

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

Benefits

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