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At Leica Microsystems, one of Danaher’s 15+ operating companies, our work saves lives—and we’re all united by a shared commitment to innovate for tangible impact.

You’ll thrive in a culture of belonging where you and your unique viewpoint matter. And by harnessing Danaher’s system of continuous improvement, you help turn ideas into impact – innovating at the speed of life.

Shape the Future with Us!

At Leica Microsystems, we have been shaping the future for over 175 years with groundbreaking optical and digital solutions. With a culture rooted in customer focus, innovation, and teamwork, we lead the market in microscopy, imaging, and analysis, unveiling the invisible and empowering our customers to build a better, healthier world.

Joining Leica Microsystems means contributing to scientific discoveries and supporting surgeons in making critical decisions. Our advanced microscopes and AI-based image analysis solutions enable users to gain profound insights into development and engineering challenges. Here, you will work on meaningful projects alongside passionate colleagues, driving progress and pushing the boundaries of what’s possible.

Learn about the Danaher Business System which makes everything possible.

The Senior Principal Scientist – Assay Development (m/w/d)

Following the acquisition of ATTO-TEC GmbH and the launch of theATTOAuriga Spatial Reagents Platform, Leica Microsystems is expanding its Assay Development Platform (ADP) to accelerate innovation in spatial biology andmultiomics. The Senior Principal Scientist – Assay Developmentis responsible forleading the development and advancement of biological assay technologies that enable differentiated application solutions and next-generation spatial biology workflows. This role serves as a recognized scientific expert within the organization, contributing to platform evolution through deep technicalexpertise, scientific leadership, and cross-functional collaboration. This position reports to the Director, Assay Development Platform and is part of the Research & Development organizationlocatedin Siegen, Germany, and will be an on-site role.

In this role, you will have the opportunity to:

• Assay Development & Innovation – Lead the development, optimization, verification, and validation of biological and molecular assays, ensuring robust performance and suitability for intended applications.

• Platform Capability Leadership – Advance platform-critical assay technologies and contribute to the development of new assay capabilities that support Leica Microsystems' spatial biology strategy.

• Cross-Functional Collaboration – Partner with Research & Development, Product Management, Commercial, and other stakeholders to translate scientific and customer requirements into scalable assay solutions.

• Laboratory Excellence & Quality – Establish and continuously improve laboratory infrastructure, experimental workflows, and quality-compliant practices that enable efficient and reproducible assay development.

• Scientific Leadership & Knowledge Transfer – Serve as a scientific authority within the organization by mentoring colleagues, sharing technicalexpertise, and contributing to publications, patent generation, and technology roadmaps.

The essential requirements of the job include:

• Ph.D. in Biochemistry, Molecular Biology, Biotechnology, Biology, Chemistry, ora relatedlife science discipline.

• Long-standing experience in biological research and assay development within academic and/or industrial R&D environments.

• Demonstrated experience developing,optimizing, andvalidatingbiological or molecular assays across multiple technologies and sample types.

• Hands-on experience with molecular biology and imaging-based technologies, such as immunoassays, nucleic acid detection methods, next-generation sequencing, single-cell workflows, or spatial biology applications.Fluent in German and English.

• Experienceprovidingtechnical leadership and scientific guidance within multidisciplinary project teams.

• Fluent in German and English.

Travel, Motor Vehicle Record & Physical/Environment Requirements:

• Occasional domestic and international travel (<10%) may berequiredto support collaborations, conferences, customer interactions, and business needs.

It would be a plus if you alsopossesspreviousexperience in:

• Spatial biology,multiomics, advanced imaging, or next-generation disease models.

• Modern microscopy platforms, including confocal, widefield, or light-sheet imaging systems.

• Scientific publications, intellectual property generation, or technology transfer activities.

Join our winning team today. Together, we’ll accelerate the real-life impact of tomorrow’s science and technology. We partner with customers across the globe to help them solve their most complex challenges, architecting solutions that bring the power of science to life.

For more information, visit www.danaher.com.