As an HR Personnel Administration, you will be responsible for independently managing all administrative HR processes throughout the employment relationship. From onboarding to offboarding, you will ensure smooth handling of personnel data, contract amendments, benefits, and certificates. You will also act as a reliable contact point for employees, interns, and external stakeholders, ensuring compliance with data protection regulations and contributing to the continuous optimization of HR processes.  Key Responsibilities: Manage all personnel administration tasks, including:  Carrying out entry and exit formalities  Processing requests for transfers and job reassignments  Preparing interim/final leaving certificates and attestations  Develop and update standards for contract documents in ESCRIBA  Manage electronic personnel files accurately and confidentially  Clarify issues independently and provide employees with reliable information  Handle AMEI generation for subcontractors  Support interns and working students in administrative processes  Ensure compliance with data protection regulations in all HR processes  Actively contribute to the optimization of HR processes and improvement of data quality   Requirements: Experience in HR administration  Familiarity with payroll processes and labor law regulations is an advantage  Accurate, discreet, and customer-oriented work style  Strong analytical thinking and problem-solving skills  Interest in digitization and continuous process improvement  Collaborative mindset with ability to work across departments  Excellent communication skills in German and English (at least B2)  Proficiency in Microsoft Office and SAP HCM  About UsArcelorMittal is the world's leading steel and mining company, with a presence in 60 countries and primary steelmaking facilities in 15 countries. Our material is part of the fabric of life. What we produce makes a difference – to individuals, communities, businesses and society. At ArcelorMittal, the safety, health, and wellbeing of our employees are our top priorities. We believe that every accident is avoidable, and it is essential for every employee, from the shop floor to the management committee, to hold this belief. Our purpose is to produce ever smarter steels that have a positive benefit for people and planet. Steels made using innovative processes which use less energy, emit significantly less carbon and reduce costs. Steels that are cleaner, stronger and reusable. Steels for electric vehicles and renewable energy infrastructure that will support societies as they transform through this century. With steel at our core, our inventive people and an entrepreneurial culture at heart, we will support the world in making that change. This is what we believe it takes to be the steel company of the future.