Scientist, Process Development (I,II,III)

Cellares
Cellares

South San Francisco, CA, USA

USD 90k-210k / year

Posted on Jun 15, 2026
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Position Summary

Cellares is seeking an innovative and highly motivated Scientist with expertise in cell therapy manufacturing to join the Process Development team. This individual will interface across many parts of the company and contribute significantly to the development of our advanced cell therapy manufacturing platform.

The primary focus of this position is to design and execute experiments that drive the continuous improvement of the Cellares platform. The ideal candidate will be a strong technical contributor and cross-functional collaborator with demonstrated experience developing robust autologous and allogeneic cell therapy processes.

Candidates should also enjoy working in a fast-paced, mission-driven environment, and be prepared to tackle a broad selection of challenges as the company grows.

Responsibilities

  • Design and execute complex experiments using scientific principles and statistical approaches (DOE) to support the development of the Cellares platform

  • Interface internally and cross-functionally with Analytical Development, MSAT, Quality, Manufacturing, BD, Product, and Engineering to implement new processes and technologies as part of the core technology transfer and translation team

  • Author high-quality technical documents, procedures, and reports

  • Analyze and present technical results at departmental meetings

  • Gather and review system requirements, develop robust test plans, oversee and support execution of experiments

  • Develop training materials for scientific methods and techniques, train and onboard new hires

  • Serve as subject matter expert where appropriate for the cell and gene therapy processes

  • Provide technical insights and support in troubleshooting, root cause investigations and feedback to engineering teams on technology design and function

Requirements

  • Bachelor's, Master's or PhD in Bioengineering, Chemical Engineering, Biology, Biochemistry, or related field with 0-15 years of process development experience in the cell and gene therapy field

  • Familiarity working on a GMP and/or Clinical Manufacturing setting preferred

  • Extensive experience designing small-scale and/or scale-up experiments and troubleshooting processes running on semi-automated instruments

  • Hands-on experience with autologous and/or allogeneic cell therapy manufacturing processes

  • Excellent verbal and written communication skills; able to interpret, summarize, and present scientific results in a clear, concise, accurate manner to both technical and non-technical audiences

  • Experience with flow cytometry and cell based assays preferred

  • Strong understanding of cell biology and immunology

  • Creative, self-motivated, eager to take on a wide variety of tasks and grow with evolving technology

This is Cellares
Cellares is the first Integrated Development and Manufacturing Organization (IDMO) and takes an Industry 4.0 approach to mass manufacturing the living drugs of the 21st century. The company is both developing and operating integrated technologies for cell therapy manufacturing to accelerate access to life-saving cell therapies. The company’s Cell Shuttle integrates all the technologies required for the entire manufacturing process in a flexible and high-throughput platform that delivers true walk-away, end-to-end automation. Cell Shuttles will be deployed in Cellares’ Smart Factories around the world to meet total patient demand for cell therapies at global scale. Partnering with Cellares enables academics, biotechs, and pharma companies to accelerate drug development and scale out manufacturing, lower process failure rates, lower manufacturing costs, and meet global patient demand.
The company is headquartered in South San Francisco, California with its commercial-scale IDMO Smart Factory in Bridgewater, New Jersey. The company is backed by world-class investors and has raised over $355 million in financing.
Leveling will be based on overall experience, education, and demonstration of knowledge throughout the interview process.

90000 - 210000 USD a year

Apply now
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