Senior Controller – Reporting & Insights (m/f/d)

About the role

As a Senior Controller – Reporting & Insights, you will own and continuously elevate the company’s management reporting and insight generation. Your mission is to transform financial and operational data into clear narratives, actionable insights, and decision-ready reporting for senior leadership. You will be responsible for building and refining state-of-the-art reporting standards, ensuring consistency, transparency, and relevance across all outputs. This role goes beyond compiling numbers — you will connect the dots across the business, challenge assumptions, and provide the “so what” behind performance. Working closely with FP&A, Accounting, and business stakeholders, you will ensure that reporting becomes a true steering tool, not just a retrospective exercise. What is your Day to Day Mission: Management Reporting & Storytelling Own and continuously improve the monthly management reporting, ensuring clarity, accuracy, and relevance Drive the collection, consolidation, and quality of business commentary across all functions Translate financial and operational results into a clear, structured narrative, highlighting key drivers, risks, and opportunities Provide the “so what” behind the numbers, turning data into actionable insights for leadership Prepare high-quality management and board-level presentations Insights & Performance Transparency Identify trends, patterns, and deviations across financial and operational data Generate deep-dive analyses and ad-hoc insights on business performance Act as a central point for cross-functional insight generation, connecting data across departments Ensure full transparency on business performance, enabling fact-based decision-making Operational Excellence & Automation Continuously improve reporting processes, structures, and outputs towards best-in-class standards Drive automation and standardisation of reporting workflows to reduce manual effort and increase speed Collaborate with BI and data teams to enhance reporting capabilities and data models Ensure data consistency and integrity across all reporting outputs Stakeholder Collaboration Work closely with FP&A, Accounting, and business teams to align on data, definitions, and messaging Challenge and refine inputs from stakeholders to ensure high-quality, decision-relevant reporting Act as a trusted partner to senior management for performance analysis and communication What you bring to the team: Have 4–7+ years of experience in Controlling, Reporting, or FP&A, with a strong focus on management reporting Have a proven track record in building or improving high-quality reporting and insight frameworks Are strong in financial storytelling and able to translate data into clear, compelling narratives Have excellent analytical skills and a sharp eye for detail and data consistency Are experienced with reporting and BI tools (e.g. Power BI, Tableau; planning tools like Anaplan are a plus) Have a strong drive for process improvement, automation, and operational excellence Communicate confidently with senior stakeholders and can challenge constructively Fluency in English (German is a plus) Nice to Have Experience in a high-growth or transformation environment Exposure to data modelling or automation tools (e.g. SQL, Python) Understanding of end-to-end finance processes (FP&A, Accounting, ERP) Professional qualification (e.g. CIMA, ACCA, CFA) What Success Looks Like Clear, structured, and impactful management reporting with strong narrative and insights High-quality, consistent business commentary and performance transparency across the organisation Reporting that enables fast, informed decision-making at leadership level Efficient, automated reporting processes with minimal manual effort A reputation as the go-to person for insights and performance storytelling Why Quantum-Systems: We believe in the power of combined efforts: straightforward tech expertise paired with a customer-centric focus. We

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