Director, Scientific Affairs

Ossium Health•San Francisco, CA

3h•$200,000 - $275,000•Hybrid

About The Position

We are hiring a Director, Scientific Affairs who brings both scientific depth and a genuine passion for connecting people, evidence, and ideas. In this role, you'll be at the center of our clinical and commercial efforts; helping translate complex science into clear, compelling stories that move the field forward. You'll partner closely with teams across Ossium to shape medical and scientific strategy, supporting the commercial launch of our novel cryopreserved bone marrow, and leading medical education and data communication work that actually changes how clinicians think about treating patients. Whether you're collaborating with individual clinical sites on evidence-generation projects or working alongside the commercial team to bring our flagship product to patients in need, you'll be the bridge between science and impact. This is an excellent role for someone who thrives at the intersection of rigor and relationship-building; the ideal candidate is someone who can walk into a room of scientists, surgeons, or sales leads and speak everyone's language. This role reports directly to the Chief Medical Officer.

Requirements

MD/PhD in a life science/biomedical discipline with strong clinical experience
5+ years of industry experience
Proven ability to collaborate, partner, and influence across multiple functions and levels of leadership
Demonstrated experience with manuscript and abstract writing and post hoc data analyses
Experience working with MSLs and providing medical/scientific support to commercial teams
Proven agility and adaptability in a fast-paced, results-driven startup environment
Excellent written, verbal, and presentation communication skills
Understanding of biostatistical concepts to analyze clinical trial data
Comfortable with travel from 15% - 30%
This position is based in our San Francisco office; we maintain a hybrid schedule of Monday - Thursday in the office, with Friday as a remote work day
Qualified candidates must be legally authorized to be employed in the United States; Ossium is unable to provide sponsorship for employment visa status (eg, H-1B or TN status) for this position, either now or in the future

Nice To Haves

Scientific or clinical expertise in hematologic malignancies, hematopoietic cell transplantation (HCT), or cell therapy
Experience supporting product launch
Background in rare disease or a specialized therapeutic indication (e.g., bone marrow transplantation)
Experience in clinical development or protocol support

Responsibilities

Drive scientific communications internally and externally, including data dissemination, educational initiatives, and guideline/value-proposition development
Assist with strategic publication planning and writing/preparing manuscripts, abstracts, and presentations
Collaborate closely with Medical Science Liaisons (MSLs) to generate, synthesize, and communicate scientific insights from field interactions
Assist with initiating and maintaining relationships with transplant MDs and PIs
Lead evidence-generation initiatives (clinical, secondary analyses, real-world evidence) to enhance understanding of therapeutic benefit and value
Serve as medical reviewer on the Promotional Review Committee and ensure scientific accuracy and compliance of promotional materials
Support congress planning and KOL engagement efforts in partnership with the Medical Science Liaison team
Provide strategic medical and scientific input into brand strategies, supporting product launches and ongoing commercialization activities
Provide medical guidance to clinical operations teams and support cross-functional collaboration with Commercial, Market Access, Regulatory, and Clinical Development
Generate and maintain proactive educational content to support internal training and external stakeholder engagement
Travel as needed to scientific meetings, clinical sites, or investigator interactions