Principal Scientist, Bioreactor Development  | Redmond, WA

Just Evotec Biologics is seeking a motivated and creative researcher who desires a significant opportunity to improve worldwide access to biotherapeutics. Just is looking for a scientist to join a fast-paced, collaborative, and multidisciplinary team to develop bioreactor processes at 1-100L scale for the advancement of low-cost biotherapeutics manufacturing.  The position requires a solid understanding of mammalian cell culture, data analysis, and experimental design. Strong written and verbal communication skills, including the ability to communicate effectively over teleconference and web-based meetings are necessary.  The ideal candidate is curious, creative, works well independently and in teams, and constantly looks for ways to improve processes and technology.


  • Design, run, and analyze perfusion bioreactor experiments
  • Work with vendors and manufacturers – ordering, troubleshooting, developing prototypes
  • Leading and contributing to project teams
  • Writing regulatory documents and project summary reports

Required qualifications:

  • BS in Engineering, Biochemistry, Molecular Biology, or related field with 15+ years of experience or Ph.D. with 5+years of experience.
  • Experience with bioreactor cell culture and perfusion technology
  • Experience with design of experiments (DOE) and statistical analysis
  • Experience leading bioreactor development teams 

Preferred qualifications

  • Programming and data analysis with JMP, R, and Python
  • Set up and design of structured data systems
  • Experience with commercial process development, process characterization, and validation


  • Experience with high throughput cell culture (e.g. deep-well plate assays or robotics)

    About Just – Evotec Biologics

    Just – Evotec Biologics, wholly-owned by Evotec SE, is a unique platform company that integrates the design, engineering, development, and manufacture of biologics. With deep experience in the fields of protein, process and manufacturing sciences, the Just team came together to solve the scientific and technical hurdles that block access to life-changing protein therapeutics; from the design of therapeutic molecules to the design of the manufacturing plants used to produce them. Just’s focus is to create access and value for a global market through scientific and technological innovation. Our state-of-the-art labs and cGMP clinical manufacturing plant are co-located in Seattle’s South Lake Union neighborhood – the center of Seattle’s medical, global health, and technology industries and a noted top emerging life science hub in the U.S. Our fast-growing team of 100 employees is expanding Just’s innovative platform and footprint – building our first North American J.POD® commercial manufacturing facility in the Seattle area. For job opportunities, learn more at

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