[Skip to main content](#main-content) [OpenNash Jobs](https://jobs.opennash.com/) [Hiring report](/reports/hiring/) · [All Merck KGaA, Darmstadt, Germany and its affiliates jobs](https://jobs.opennash.com/companies/merck-kgaa-germany/) · [Search jobs](/search/) Merck KGaA, Darmstadt, Germany and its affiliates · Warszawa, Mazowieckie, Poland # Regionalny Ekspert Medyczny Onkologia Warszawa, Mazowieckie, Poland Full-time Healthcare & Clinical Listed on Merck KGaA, Darmstadt, Germany and its affiliates’s official careers site. Posted September 17, 2026. Check that it is still open and apply there. [Apply on Merck KGaA, Darmstadt, Germany and its affiliates’s careers site →](https://careers.merckgroup.com/global/en/job/MQAMKDGLOBAL303769EXTERNALENGLOBAL/Medical-Science-Expert-Oncology) [OpenNash Jobs](https://jobs.opennash.com/) / [Merck KGaA, Darmstadt, Germany and its affiliates](https://jobs.opennash.com/companies/merck-kgaa-germany/) / Regionalny Ekspert Medyczny Onkologia ## Job description Work Your Magic with us! Ready to explore, break barriers, and discover more? We know you’ve got big plans – so do we! Our colleagues across the globe love innovating with science and technology to enrich people’s lives with our solutions in Healthcare, Life Science, and Electronics. Together, we dream big and are passionate about caring for our rich mix of people, customers, patients, and planet. That's why we are always looking for curious minds that see themselves imagining the unimaginable with us. United As One for Patients, our purpose in Healthcare is to help create, improve and prolong lives. We develop medicines, intelligent devices and innovative technologies in therapeutic areas such as Oncology, Neurology and Fertility. Our teams work together across 6 continents with passion and relentless curiosity in order to help patients at every stage of life. Joining our Healthcare team is becoming part of a diverse, inclusive and flexible working culture, presenting great opportunities for personal development and career advancement across the globe. ### YOUR ROLE In your role as an Oncology Medical Science Expert / Medical Science Liaison, you will act as a field-based scientific expert and trusted partner to healthcare practitioners and key thought leaders. You will drive bi-directional scientific exchange regarding our oncology portfolio and clinical pipeline, utilizing a hybrid approach of face-to-face and virtual engagements. Your core responsibilities include responding to complex medical inquiries, supporting clinical trial activities, and gathering actionable insights to shape our local medical strategy. You will independently handle medical information requests while collaborating cross-functionally to ensure safe therapy use, providing you with immense opportunities for professional growth and strategic impact. ### WHO YOU ARE Advanced scientific degree (MSc, PharmD, PhD, DO, or MD). Previous related medical field and pharmaceutical experience required Deep therapeutic area knowledge in oncology and its competitive landscape. Proven ability to build networks and foster partnerships with key thought leaders. Exceptional communication and presentation skills for impactful hybrid engagements. Strong strategic, analytical, and project management capabilities. Advanced English language proficiency. ### YOUR MAIN BENEFITS Health and well-being: Get access to private medical care, life insurance, and sports card, receive prepaid lunch card Work-Life balance: Enjoy additional paid days off, flexible working hours Learning and Development: Take advantage of co-financing for language courses, trainings, and certifications as well as other development opportunities Employee support and engagement: Benefit from Employee Assistance Program and join employee engagement groups for support and connection Information on how we process your personal data for recruitment purposes, you can find on the registration form in our Recruitment Portal. ### What we offer We are curious minds that come from a broad range of backgrounds, perspectives, and life experiences. We believe that this variety drives excellence and innovation, strengthening our ability to lead in science and technology. We are committed to creating access and opportunities for all to develop and grow at your own pace. Join us in building a culture of inclusion and belonging that impacts millions and empowers everyone to work their magic and champion human progress! Apply now and become a part of a team that is dedicated to Sparking Discovery and Elevating Humanity! ## At a glance - Posted by the employer: Sep 17, 2026 - First seen by OpenNash: Oct 19, 2026 - Last checked: Oct 19, 2026 - Listed for: 32 days - Location: Warszawa, Mazowieckie, Poland - Employment type: Full-time[Apply on Merck KGaA, Darmstadt, Germany and its affiliates’s careers site →](https://careers.merckgroup.com/global/en/job/MQAMKDGLOBAL303769EXTERNALENGLOBAL/Medical-Science-Expert-Oncology) ## More jobs at Merck KGaA, Darmstadt, Germany and its affiliates ### [Senior Central Data Monitor (all genders)](https://jobs.opennash.com/companies/merck-kgaa-germany/jobs/5aad14ad280a5e9cf37d/) Warszawa, Mazowieckie, Poland ### [(Senior) Medical Advisor - Diabetes](https://jobs.opennash.com/companies/merck-kgaa-germany/jobs/83f8bc3e2767f33ff781/) Ho Chi Minh City, Ho Chi Minh, Viet Nam ### [Assoc Dir., Clinical Quality Mgmt. 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