Associate Scientist, Small Scale Bioreactor Development  |  Just – Seattle, WA

Just is seeking a motivated and creative researcher who desires a significant opportunity to improve worldwide access to biotherapeutics. We are 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 sterile technique, cell culture, and experimental design. Experience with bioreactors and machinery is highly desirable. Knowledge or interest in PLCs, prototype boards or similar electronics is a plus. 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, engaged, works well independently and in teams, and constantly looks for ways to improve processes and technology. 


  • Prep, run, and clean bioreactors and bioreactor equipment (controllers, pumps, autoclaves, etc)
  • Work with vendors and manufacturers – ordering, troubleshooting, developing prototypes
  • Weekend sampling and maintenance
  • Design, execution, and analysis of statistically designed experiments (DOE) 

Preferred qualifications: 

  • BS in Engineering, Biology, Biochemistry or related field.
  • Excellent aseptic technique
  • Experience culturing mammalian cell lines such as CHO
  • Experience making cell culture media and buffers
  • Experience with Microsoft Office apps (Word, PowerPoint, Excel) 


  • Experience with bioreactor cell culture and perfusion technology
  • Experience with design of experiments (DOE) and statistical analysis
  • Experience with JMP, R, Tableau, SoftMax Pro, Guava, Visual Basic, and WebEx
  • Experience with high throughput cell culture (e.g. deep-well plate assays or robotics)
  • Experience implementing / programming PLCs (any manufacturer)
  • Experience or familiarity with writing code (Python preferred)
  • General understanding of circuits (grounding, power, signal, etc.) 

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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