Position Description

Upstream Process Development Assistant
Location San Diego, CA
Department Process Development - 530
Apply Now

Together, Let’s Make A Difference.


At Ajinomoto Bio-Pharma Services, our mission is to help improve the health of humankind. As a leading, global contract development and manufacturing organization, with sites in the US, Belgium, Japan and India, we work together to empower our clients to bring drugs to market.


Every team member, from manufacturing and quality programs to development and facilities services are a critical component to this effort. At our US location, our focused expertise and capabilities makes us one of the industry’s top leaders for large molecule manufacturing and aseptic drug product fill in vials and syringes.


We believe our people are our greatest asset and we are committed to providing our employees with an environment that supports personal and professional growth. We take pride in knowing our efforts are helping countless patients for years to come.


Do you enjoy working in a dynamic, inspiring team with an amazing culture? If you do, then Ajinomoto Bio-Pharma Services is the place for you.


We are currently seeking an Upstream Process Development Assistant. In this entry level role, you will assist with developing, optimizing and scaling up upstream manufacturing processes for large-scale plasmid and protein production along side an experienced team.   



  • Designs and conducts experiments with lab notebook/documentation that follow protocols and accurately records procedure and results.
  • Develops, optimizes and scales-up upstream manufacturing processes for large scale plasmid and protein production.
  • Performs host cell selection, fermentation condition screening, and research cell banking.
  • Completes analytical testing for process science experiments and manufacturing investigations.
  • Prepares components, media, buffers, and other solutions as needed.
  • Performs data analysis, and prepares results summaries.
  • Embodies Aji Bio-Pharma’s cultural values and aligns daily actions with department goals and company culture.



  • Bachelor’s degree in a life science discipline or equivalent required.
  • 0 years of experience in laboratory or manufacturing environment required.
  • Experience with or understanding of principles or fermentation and aseptic technique.
  • Basic analytical assay experience (SDS PAGE and agarose gel electrophoresis, protein and DNA concentration determinations, immunoassays).


We provide a Total Rewards package designed to make life better – both at work and at home.

  • Annual Bonus Opportunities for All Employees
  • 15 Days Starting PTO (Annual Increase) + Sick Time Off + Volunteer Time Off
  • Paid Parental Leave
  • Annual Company Shutdown in December
  • Comprehensive Medical, Dental + Vision
  • 401K Company Match + Immediate Vesting
  • Backup Daycare and Eldercare
  • Monthly Employee Appreciation Events and Food Truck Fridays
  • Employee Discount Programs
  • Tuition Reimbursement
  • Casual Dress Code
  • Wellness Programs
  • Community Outreach Opportunities


If you meet the requirements above, and would like to apply for this position, please visit our website at www.ajibio-pharma.com and click on the "Careers" section. Please be sure to note where you saw our ad posting.

New hires will pass a background check and drug screen as a condition of employment.

We are an EOE dedicated to a diverse work force and Drug Free work environment. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or status as a protected veteran.



Back Apply Now