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Principal Research Associate, Flow Cytometry

Sana Biotechnology

Sana Biotechnology

South San Francisco, CA, USA
USD 115k-145k / year + Equity
Posted on Feb 10, 2026

About the role

Sana Biotechnology is growing, and we are hiring new team members who believe in the potential of engineered cells as medicines, who are passionate about delivering the possible to patients, and who lead with the desire to work on novel ideas. As a Principal Research Associate, Flow Cytometry, you will report to the Scientist, Flow Cytometry. You will either lead or support the development and implementation of flow cytometry methods for Sana’s cell therapy products, and support method transfer and qualification to enable GMP testing. This role is onsite in South San Francisco, CA.

What you’ll do

  • Develop and qualify multi-color flow cytometry assays to support the characterization, process development, release testing, and stability testing of cell therapy products
  • Culture, bank, and characterize mammalian primary cells and immortalized cell lines for use in assay development or as controls
  • Create detailed documentation of experimental procedures and results in the electronic laboratory notebook and complete the review and approval of notebook entries per established policy
  • Give scientific presentations, prepare technical reports, and draft/revise analytical test methods
  • Perform calibration, maintenance, and troubleshooting of instruments and reagents
  • Maintain inventory of reagents and improve operational efficiency in the laboratory, adhering to laboratory safety standards
  • Contribute to flow cytometry best practices and keep pace with innovations
  • Support Quality Control on method transfer, qualification, and testing at CDMOs as well as internal laboratory operations and testing as needed

What we’re looking for

  • Bachelor’s plus 6 years or MS with 4+ years or equivalent combination of education and work experience
  • Experience with developing and qualifying multi-color flow cytometry assays for pluripotent stem cell or stem cell-derived pancreatic islet cell products per FDA, ICH, and USP regulatory guidelines
  • Proficient in independently analyzing flow cytometry data using FlowJo and/or FCS Express, drawing conclusions, and making recommendations for next steps
  • Experience with performing mammalian cell culture and generating cell stocks using aseptic techniques
  • Ability to multitask, communicate effectively, and quickly adapt to changing business conditions
  • High degree of self-motivation and accountability

What will separate you from the crowd

  • Experience using statistical software such as JMP for DOE, data visualization, and analysis
  • Experience with development of analytical methods for commercial cell-based therapeutics
  • Experience working in a Quality Control function to support GMP testing

What you should know

  • There may be potential exposure to BSL2 and BSL2+ biohazard materials
  • Occasional off-hours or weekend work may be required
  • Physical Demands: Employees in this position may be required to perform the following physical activities: standing, walking, and sitting for extended periods of time; frequent use of the hands, fingers, wrist, and greater arm to handle small materials, tools, boxes, and trays; lifting and carrying objects up to 10 Ibs; occasional overhead reaches and lifts; occasional lifts and reaches below the knee; occasional pushing and pulling of materials and objects with moderate forces; occasional crouching/kneeling, twisting, and squatting movements.
  • Must be able to successfully pass all job-related tests and certifications required for working in a cGMP, quality environment including but not limited to: inspections and GMP requirements to perform essential functions of the job.
  • The base pay range for this position at commencement of employment is expected to be between $115,000 and $145,000/year; however, base pay offered may vary depending on multiple individualized factors, including market location, job-related knowledge, skills, and experience

How we work together for patients

  • Lead from every seat – we seek to understand, act with honesty, and engage in the crucial conversations
  • Thrive as a team – we hire amazing people, are intensely curious, and cultivate inclusion and personal connectivity
  • Make it happen – we value vigorous debate, alignment around our decisions, and resilient execution

Get to know us

At Sana, we believe that a workforce with varied backgrounds strengthens us as a company and helps us to achieve our mission to meaningfully change the outcome of many human diseases. This belief is a pillar of our business and is critical to our success. Our goal is that Sana is the place for talented people to bring their authentic selves to work, to have a great career and to deeply, positively impact patients.

Core to our values, we believe there is nothing more important than the health and wellness of you and your family. For benefit eligible employees, we cover a generous portion of the cost for employee health coverage, making high-quality care more accessible and affordable. We offer ample time-off (various paid time off benefits, such as holidays, vacation, sick time, and parental leave), short- and long-term disability, employer paid basic life insurance, additional voluntary life insurance protection, financial wellness programs including financial planning resources, a 401(k) Plan with an immediately vested employer match, Tuition Reimbursement and Student Loan Repayment, Employee Stock Purchase Plan, commuter subsidy and a variety of wellness offerings to support each person individually. For more details on our benefits, visit Sana’s Benefits Portal.

We are committed to providing a workplace free of discrimination and harassment based on race, color, religion, age, gender, national origin, ancestry, physical or mental or sensory disability (including the use of a trained guide dog or service animal by a person with a disability), genetic information, actual or perceived HIV or Hepatitis C infection, medical condition (cancer or a record or history of cancer and genetic characteristics), marital status, sexual orientation, sexual preference, pregnancy (including childbirth and related medical conditions), disability, veteran status, political ideology, social class (including caste/caste identity), taking or requesting statutorily protected leave, status as a victim of domestic violence, sexual assault or stalking, or any other basis prohibited by applicable law.

To perform this job successfully, you must be able to perform each job responsibility satisfactorily. The job description listed above is representative of the knowledge, skills, and/or abilities required for this position. Reasonable accommodations may be made to enable individuals with disabilities to perform the functions described above.