Co-op, Cell Culture Process Development

Ultragenyx Pharmaceutical•Woburn, MA

23h•$23 - $30•Onsite

About The Position

Why Join Us? Be a hero for our rare disease patients At Ultragenyx, we fundamentally believe that taking real impactful action to care for the needs of patients and our people is always the right thing to do. To achieve this goal, our vision is to lead the future of rare disease medicine. For us, this means going where other biopharma companies won’t go – challenging the status quo and creating a new model that advances our field so more patients and caregivers can benefit from life-changing treatments. We do this by following the science, applying a novel rapid development approach, making innovative medicines at fair and reasonable prices, and creating a collaborative ecosystem to reach patients in ways that are most meaningful for them. Our commitment and care for patients extends to our people, so culture is an essential cornerstone for Ultragenyx. We remain continuously focused on creating a supportive and inclusive environment of profound learning and growth – so employees can thrive in all areas of their lives, in and outside of work. Ultimately, we want to be an organization where we would be proud for our family, friends and children to work. If you want to have a meaningful impact, do the best work of your career, and grow a lot, both professionally and personally, come join our team. Position Summary: ultraimpact – Make a difference for those who need it most Work Model: Core Lab & Ops: This role typically requires that the majority of the work be conducted on-site and thus will be subject to certain on-site safety protocols during the pandemic. Responsibilities: Ultragenyx has multiple Gene Therapy programs in development in the rare and ultrarare disease space, and a robust pipeline. Reporting to the Associate Director, Upstream Process Development, the Co-op/Intern will support the research and development of advanced cell culture processes and programs in late-stage development for AAV vectors.

Requirements

Graduate or Undergraduate student in Chemical Engineering, Biochemistry, Biology, Chemistry or a related discipline.
This is a 6 month co-op, starting July 6, 2026 working full-time (40 hours per week) until December 18, 2026
Experience working with controlled bioreactor systems is a plus.
Interest in learning and working in a fast-paced environment.
Demonstrates strong organizational and communication skills and the ability to work effectively in a collaborative team environment.
Independently motivated and detail-oriented with good problem-solving ability.

Responsibilities

Actively contributes to programs in late-stage development to enhance AAV manufacturing technologies/capabilities and work-processes.
Work directly with supervision to design and execute experiments to support material generation, process characterization, and scale-up of cell culture processes for AAV production.
Demonstrate the ability to quickly learn and independently perform routine cell culture activities: proper aseptic technique, operation of lab scale equipment including metabolite and cell analyzers, and small-scale to pilot-scale cell culture bioreactors.
Collect controlled experimental data and maintain accurate daily logs of experiments including methods, results, and conclusions.
Organize and plot experimental data and work with supervision to draw conclusions and insights for the upstream process.
Ensure high-quality, timely documentation in electronic laboratory notebooks and technical reports.
Present scientific findings to the upstream development group or broader internal audience.
Support the compilation, tracking, and trending of manufacturing data for commercial process monitoring.
Assist in general laboratory maintenance duties, including inventory of consumables and raw materials, media and buffer preparation, and routine lab maintenance/cleaning tasks.