Scientist Research & Development

Cresilon® is a Brooklyn-based biotechnology and medical device company that develops, manufactures, and markets hemostatic products, driven by a singular mission: to save lives. Powered by proprietary plant-based hydrogel technology, Cresilon's products are redefining the standard of care by stopping bleeding in seconds across diverse patients, procedures, and care settings. The company's current commercial portfolio includes TRAUMAGEL® for human trauma and VETIGEL® for veterinary applications, with planned expansion into human surgical applications and beyond. Learn more at www.cresilon.com

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.

This is a senior technical role overseeing a small team within a dynamic, growing organization. . The R&D Manager/Principal Scientist is both a strategic leader and a hands-on contributor. In addition to managing and mentoring staff, this individual is expected to remain actively engaged in laboratory work, directly contributing to experimental design, execution, troubleshooting, and data interpretation. This role requires a player-coach mindset, with the ability to balance people leadership, technical oversight, and individual scientific contribution. The role demands a high degree of ownership and adaptability, with the expectation that the individual will work at multiple levels—from setting technical direction to performing bench-scale formulation development and characterization activities as needed to meet program timelines.

The R&D Manager / Principal Scientist will serve as a subject matter expert in polymer materials science, formulation strategies, analytical chemistry, and biomaterial interactions with biological systems. They are responsible for upholding high standards in research practices and ensuring scientific and technical rigor across all development activities. Additionally, they are responsible for leading the development of documentation required for regulatory submissions (e.g., 510(k), IDE, technical files), driving strategy for publications and grant applications, securing non-dilutive funding through grant opportunities, and supporting technology transfer into manufacturing environments. They will report to the Vice President of Technology. This is a full-time, on-site position, located in Brooklyn, New York.