Be part of our team We are seeking an experienced and highly motivated (Senior) Scientist to join our Biomarker Development team. The ideal candidate holds a PhD in Life Sciences, Biology, or a related field, and has advanced expertise in immunohistochemistry (IHC) methods and assay development. This role focuses on the operational and scientific oversight of biomarker activities in clinical trials, serving as a subject matter expert (SME) for biomarker-related aspects of study design, execution, and reporting. Your mission Act as biomarker SME for assigned clinical studies, providing scientific and operational guidance throughout study planning and execution. Oversee and review biomarker-related clinical documents, including protocols, study reports, laboratory manuals, and sample management plans. Support IHC assay development, optimization, and clinical implementation in collaboration with internal teams and external laboratory partners. Review and interpret IHC results, ensuring consistency with study endpoints and biomarker strategies. Collaborate closely with cross-functional teams to ensure biomarker-related deliverables are on time and compliant with regulatory and quality standards. Contribute to vendor oversight, ensuring assay performance and data quality meet program requirements. Your profile Must-Have Qualifications: PhD in Life Sciences, Biology, or a related discipline. Strong expertise in IHC methodology and assay development. Experience in biomarker development within clinical trials (Phase I–III), ideally in oncology. Proven ability to review and comment on clinically relevant documents such as study protocols, reports, and laboratory manuals. Solid understanding of clinical trial conduct, biomarker data flow, and regulated documentation practices. Excellent communication and organizational skills, with the ability to work in cross-functional and international teams. Nice-to-Have Qualifications : Familiarity with CRO and vendor management in biomarker studies. Working knowledge of digital pathology or image analysis tools is an advantage. Why us? At Tubulis, curiosity and innovation drive us to transform cancer treatment. We are a fast-growing biotech where science meets passion—and where you have the chance to grow with us. Impact that matters : Contribute to breakthrough therapies. Global mindset : Work in an international, diverse team. Grow & thrive : Develop your career in a supportive, fast-moving environment. Innovation every day : Push boundaries with cutting-edge science. At Tubulis, your ideas matter, your growth matters—and together, we make a difference. About us Tubulis is a clinical stage biotech company that generates uniquely matched antibody-drug conjugates (ADCs) with superior biophysical properties that have demonstrated durable on-tumor delivery and long-lasting anti-tumor activity in preclinical models. We recently closed on a Series C fundraising round totaling €344M (US $401M). The development of novel, effective and safe therapies for the treatment of cancer is one of the main challenges for modern medicine. We want to drive this process forward. The main goal of Tubulis is to become a leading company in the field of targeted therapeutics and ADCs. With a strong team, our own technologies and innovative therapeutic concepts, we are ushering in a new era in the ongoing fight against cancer and share the vision of helping patients world-wide. Be part of a multidisciplinary and focused team, that works towards getting novel promising ADCs to patients with solid and hematological cancers.