A Snapshot of Your Day  As the Test Strategy & Operations Management Lead for User Acceptance Test (UAT) (f/m/d), you start your day aligning with internal stakeholders and external IT partners to further develop the S/4 test factory setup for User Acceptance Testing. You oversee the integration of multiple rollout projects within the S/4 program, ensuring a scalable, efficient, and well-governed operating model. Leading a global team of IT and Business Transformation experts, you monitor testing activities across rollout projects and ensure transparency regarding progress, risks, and performance. You drive stakeholder alignment, analyze key performance metrics, and continuously improve processes through automation and AI-driven solutions. At the end of the day, you consolidate results, prepare performance reports, and define next steps to strengthen the factory setup. How You’ll Make an Impact  * Establish and scale the S/4 test factory for the UAT scope, combining internal employees and external IT partners to enable industrialized SAP rollouts. * Lead and govern all UAT test-related activities across the global rollout program. * Manage the Performance Management on UAT testing scope with clear KPIs and continuous improvement mechanisms. * Drive automation and AI-enabled testing approaches for UAT across all rollout projects to increase efficiency and quality. * Manage risks, dependencies, and service levels for UAT scope to ensure timely and complete delivery. * Ensure transparency through structured reporting, governance, and stakeholder alignment. What You Bring * Degree in (Business) Informatics, IT Management, or a comparable qualification * Proven experience managing complex IT environments and transformation programs * Strong knowledge of enterprise IT systems and large-scale rollout initiatives, ideally SAP/S/4HANA * Knowledge of IT operations, governance, and service management structures * Experience working with external IT partners and leading cross-functional, international teams * Business fluent in English; German is an advantage About the Team In our Business Functions we enable our organization to reach their targets by providing best-in class services and solutions in the areas of IT, HR, Finance, Real Estate, Strategy & Technology and more. Who is Siemens Energy?  At Siemens Energy, we are more than just an energy technology company. With ~100.000 dedicated employees in more than 90 countries, we develop the energy systems of the future, ensuring that the growing energy demand of the global community is met reliably and sustainably. The technologies created in our research departments and factories drive the energy transition and provide the base for one sixth of the world's electricity generation. Our global team is committed to making sustainable, reliable, and affordable energy a reality by pushing the boundaries of what is possible. We uphold a 150-year legacy of innovation that encourages our search for people who will support our focus on decarbonization, new technologies, and energy transformation.       Find out how you can make a difference at Siemens Energy: https://www.siemens-energy.com/employeevideo Our Commitment to Diversity  Lucky for us, we are not all the same. Through diversity we generate power. We run on inclusion and our combined creative energy is fueled by over 130 nationalities. Siemens Energy celebrates character – no matter what ethnic background, gender, age, religion, identity, or disability. We energize society, all of society, and we do not discriminate based on our differences.  Rewards/Benefits  * In addition to an attractive remuneration package in line with the market, you can expect an attractive employer-financed company pension scheme * We also offer the opportunity to become a Siemens Energy shareholder * We offer our employees the opportunity to work flexibly and remotely, and our inspiring offices provide space for collaboration and creativity * The professional and personal development of our employees is very important to us. We provide them with the opportunities to learn and develop in a self-determined way, various attractive programmes and learning materials are available for this purpose * In relation to the "compatibility of family and work", we have a wide range of offers, e.g. flexible working time models, childcare places at many locations, the possibility of trial part-time work or even a sabbatical We value equal opportunities and welcome applications from people with disabilities. https://jobs.siemens-energy.com/jobs  The S4 program at Siemens Energy, formally called S4E or S4E‑Unify, is one of the major global Business- & IT Transformation Programs within Siemens Energy (SE). Its key objective is to transform our historical patchwork of 23 legacy SAP systems into a completely new platform based on the latest state-of-the-art SAP S/4 HANA technology. At the same time, S4E-Unify is aiming for the optimization and harmonization of SE’s worldwide Business Processes across all Business Areas, Regions and Functions. Goal is to significantly reduce complexity, increase speed and flexibility, foster cross-organizational collaboration and finally drive significant cost reductions. The S4E-Unify core team consists of roughly 300 colleagues around the globe plus a substantial extended community of subject matter experts (SME), change network ambassadors and other contributors. It affects 40,000 global users and follows an implementation roadmap through 2030.  The S4E program is delivered through phased “Unify” rollout waves, bringing sites and business areas live step by step on SAP S/4HANA. It includes standardized business templates, a defined operating model with strong governance and board‑level sponsorship, and an enhanced user experience that modernizes how employees work.