Review and evaluate purchase requisitions, and obtain and analyze supplier quotations Independently negotiate purchasing and contract terms, including pricing, delivery schedules, and payment conditions Support the development and continuous improvement of framework agreements with suppliers Analyze commodity groups, procurement markets, and supplier structures to optimize purchasing strategies Plan, prepare, and manage tendering and bidding processes Advise and support internal stakeholders in demand planning and requirements definition Obtain, evaluate, and compare quotations to ensure cost-effective procurement decisions Manage operational purchasing activities, including system documentation and processing in SAP Handle and follow up on supplier claims and complaints in close coordination with internal and external stakeholders Maintain, validate, and analyze relevant master data and procurement data in SAP Actively contribute to strategic procurement initiatives as well as digitalization and process optimization projects Prepare, analyze, and present regular reports, KPIs, and statistical evaluations