Working At Ossium

Who We Are

At Ossium, we believe that science is humanity’s best weapon in the fight against disease, and we embrace the challenge of mobilizing the world’s healthcare ecosystem to win that fight. In pursuit of this goal, we empower our employees, maintain the highest standards of excellence, and are a force for good.

Kevin Caldwell

CEO, Co-Founder & President

Listen to Kevin Speak About Our Vision


The values we live by


We are mission-driven and results-oriented. We believe that a healthier world is a better one and that our work should drive positive change.


Embracing the truth empowers us to learn from both our successes and our mistakes. We follow the data wherever it leads.


We hold ourselves and each other to the highest bar. We care deeply about the work we do and know that even the smallest details can make a difference.

Inside Look

Day in the Life

National Trainer

These donor tissue recovery experts work with our OPO partners to continuously improve our tissue recovery processes.  They are masters of Ossium’s recovery protocols and practices.

Cell Therapy Associates

These processing experts make our cell therapy products. They are skilled in tissue processing, cell processing, and cryopreservation.

Quality Control Associates

These laboratory experts ensure the quality of our final products always meet Ossium’s rigorous standards. They are adept in product testing, focused on quality, and dedicated to laboratory excellence.

Words from the Team

It is incredible to see Ossium growing and changing before your eyes. The tremendous achievements are owed to the unmatched leadership and to every single hardworking team member. The team's passion and drive to save lives radiates through the daily work. People at all levels are heard, supported, and make a recognizable difference. Each Ossie inspires me to be better and work harder. Working at Ossium is more than a job - it is a challenge, it is a family, it is fulfillment, it is world-changing.

Aubrey Sherry

Senior Manager, Quality Systems

Aubrey Sherry

Senior Manager, Quality Systems

From the first day I started at Ossium, we had a clear goal to save lives. I come to work every day with that in mind. Getting to work on such a critical cause with the wonderful folks at Ossium makes this an incredible place to be.

Margie Mathewson

Senior Vice President, Business Operations

Margie Mathewson

Senior Vice President, Business Operations

Dr. Mathewson’s career has focused primarily on helping start-ups and small businesses build out robust operations, from internal structures and systems to external partnerships. Prior to joining Ossium, Dr. Mathewson was the 7th team member at Point, a FinTech start-up offering non-traditional options for home equity funding, where she led Business Operations. While there, she drove development of an underwriting process for nontraditional, complicated customers that allowed funding of Point’s initial set of homeowners, including the first to successfully exit the investment. She also communicated complex mathematical concepts to homeowners to educate them on the Point investment model and how their equity sale would work.

Dr. Mathewson also worked as a consultant for McKinsey & Company, where, among other projects, she helped develop a rapid growth strategy for a successful health system, overhauled a sales and supply chain planning process to improve communication and ensure every customer got what they ordered on time, and restructured the international sales team for a major global telecom. Dr. Mathewson completed her PhD at the University of California, San Diego, where she was an NSF Fellow and founded a successful mentorship program for first generation college students in engineering.

I love working for a company that consistently sparks passion, cultivates my professional growth, and advances patient care. Each of my teammates plays a vital role and our strength, enthusiasm, and dedication combine in order to improve the business and science as a whole. I am proud and fulfilled to be an Ossie!

Hannah Miller

Senior Manager, Clinical Manufacturing

Hannah Miller

Senior Manager, Clinical Manufacturing

Open Positions

At Ossium, we’re always looking for talented, mission-driven people.