Scientist or Senior Scientist, Cryobiology

Cresilon

Cresilon® is a Brooklyn-based biotechnology company that develops, manufactures, and markets hemostatic medical devices utilizing the company's proprietary hydrogel technology. The company's plant-based technology has revolutionized the current standard by stopping traumatic and surgical bleeds in seconds without the need for extended manual pressure. The company's current and future product lines target veterinary, human trauma, and human surgical applications. Cresilon's mission is to save lives.

Learn more about the company at

The R&D Manager/Principal Scientist - Polymer Formulation will lead the design, development, and implementation of novel formulations and polymer materials for use in medical devices, ensuring all activities meet applicable quality and regulatory standards. This role provides technical leadership and expertise in materials formulation development while building and optimizing internal capabilities to deliver innovative, efficient medical device and combination product solutions, aligned with the company's long‑term technical vision and pipeline of customer‑focused innovations.

Key responsibilities include developing and characterizing polymer material formulation solutions, recruiting and onboarding talent, managing technical collaborations with external suppliers and vendors, and integrating formulation solutions into scalable manufacturing processes, whether in-house or through CDMOs. The role operates in a highly collaborative, cross‑functional environment and requires flexibility, scientific rigor, and a strong drive to explore and implement new technologies in the pursuit of robust, innovative products.

• Lead, staff, and manage formulation development teams and their efforts across multiple parallel product development opportunities, to launch new commercially successful products
• Provide sound scientific leadership, monitoring, and coaching through the initiation, planning, and execution of their team's overall activities
• Create and lead experimentation of exploratory and/or product development research with a focus on polymeric materials and their use
• Exercise technical judgment in the design, execution, and interpretation of experiments within the scope of project responsibilities and ensure the use of professional concepts to solve complex problems in creative and effective ways, in conformance with scientific methods and procedures
• Lead material/design/process changes through the design control process, with well‑documented research/analyses
• Review and author protocols and reports, including development studies and design verification/validation activities
• Develop and implement investigations into new technologies and capabilities, partnering with business development, that advance the research team and company objectives
• Lead efforts in chemical and mechanical property evaluation to assess the desirability of process or formulation changes. Develop test method capabilities to support R&D (exploratory research, product development) and production test requirements
• Develop unique, proprietary (and ideally patentable) intellectual property that yields competitive advantage
• Lead and participate in voice‑of‑customer (VOC) labs and influence go‑to‑market strategies
• Interface with customers, suppliers, and internal cross‑functional team members to develop specifications and coordinate prototype fabrication
• Work as part of a cross‑functional team to develop, verify, and validate product designs through bench, in‑vitro, and in‑vivo testing and other assessments
• Ensure an effective documentation system is in place and utilized throughout the development process inclusive of R&D lab notebooks, design reviews, test methods, and test reports
• Maintain active dialogue with Regulatory Affairs as subject matter expert on all product design elements/documentation pertaining to research towards FDA/regulated authority submissions
• Act as research liaison between R&D and Quality Control to define product specifications
• Maintain active dialogue with Manufacturing to ensure successful technology transfer and…