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

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 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. 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.