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

Company Description 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.  Job Description 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  Qualifications 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&#xa0