Your mission Are you studying business, finance, or a related field and eager to gain hands-on experience beyond theory? Do you want to understand how numbers drive decisions, business models, and strategy – and enjoy working with data and systems? Then this role is the perfect fit for you! As a Working Student in Controlling, you will actively support our controlling team in day-to-day operations and contribute to digitalization and system projects. You’ll gain deep insights into an international environment and build a strong foundation for your future career in finance or controlling. Your Responsibilities Support the controlling team in preparing analyses, reports, and presentations Assist with data collection, validation, and basic analysis for budgeting, forecasting, and variance reporting Maintain and update KPIs, reports, and dashboards Support monthly, quarterly, and annual closing processes (e.g., data preparation and checks) Analyze cost, revenue, and investment data under the guidance of senior controllers Contribute to initiatives for modern controlling tools and processes Assist with SAP S/4HANA Public Cloud and SAP Analytics Cloud (SAC) activities, including data preparation, testing, and documentation Participate in IT, digitalization, and automation projects in a supporting role Collaborate closely with colleagues from controlling, finance, IT, and business departments Your profile Enrolled student in Business Administration, Economics, Finance, Controlling, or a similar program First practical experience in finance or controlling is a plus Strong analytical skills and affinity for numbers and data High IT and system affinity, with interest in digital finance solutions Confident use of MS Office, especially Excel Interest in SAP, BI tools, or data analytics is an advantage Structured, reliable, and proactive working style Strong communication skills and team spirit Very good German and English skills, written and spoken Why us? Hands-on experience in a professional and international controlling environment Active involvement in digitalization and SAP projects Flexible working hours compatible with your studies Hybrid working model Personal mentoring and structured onboarding Open, supportive team culture and short decision-making paths About us We are EP Power Minerals GmbH, based in Oberhausen, we see ourselves as a European competence leader in the management of power plant by-products and blasting abrasives as well as industrial waste. With our subsidiaries and our internationally growing network, we have been a leading service provider for industries and the construction sector for more than 40 years, supplying them with high-quality construction materials, blasting agents and industrial materials. Our products such as fly ash, reduces the carbon footprint and invest in diverse future projects with alternative material sources to further develop the long-term sustainability of our company. We also specialise in the responsible disposal of industrial waste and the production of building materials from waste.