Fermentation Research Associate

Fermentation · Davis, California
Department Fermentation
Employment Type Full-Time

Research Associate


Davis, CA | Full-Time

About Joywell Foods

Joywell Foods’ mission is to help people eat better & live better - while still loving their favorite foods.


From 1988 to 2016, US morbid obesity grew from 23% to 40%. The prevalence of sugar in the American food landscape has resulted in more than 100M pre-diabetics/diabetics.  Sugar, in all its forms, is among the chief culprits.  Joywell is a food technology & consumer goods company that is focused on solving that problem by unlocking the power of plant-based, sweet proteins in our favorite foods.  The result?  Far fewer calories, protein-based digestion with no glycolic affect or health unknowns & still, the same great tastes we all love!


Founded by an amazing scientist out of Cal Berkeley, 7-years of R&D under our belts on the cusp of commercialization & backed by top-tier Silicon Valley investor Khosla Ventures & food-industry investor Evolv Ventures — Joywell is primed for success.  Come join us help consumers have their cake & eat it too.


We are searching for a hands-on Research Associate to join our Fermentation team to develop the next-generation, nutritious sweeteners that will transform food and human health. This role will involve supporting the development, scale-up, and production of our fermentation-based naturally sweet proteins. The ideal candidate will have experience in microbial fermentation and bioreactor operations in the laboratory. This position will report to the Fermentation Senior Research Associate.



  • Perform all steps of protein expression and scale-up from plates to shake flasks to bench-scale bioreactors with guidance from senior team members
  • Execute experiments, analyze data, develop conclusions, and make recommendations
  • Troubleshoot experimental, operational, and equipment issues and implement solutions
  • Support fermentation operations including media preparation, bioreactor setup, equipment cleaning and sterilization, instrument calibration, sampling and analysis, and downstream processing
  • Maintain inventory of sterile media, chemical inventory, and other consumables needed to support routine operations      
  • Document and share findings through maintenance of scientific notebook
  • Develop, maintain, and follow standard operating procedures (SOP’s)
  • Collaborate with Strain Engineering, Downstream Process, Analytical Sciences, and Product Development teams on strain validation, process development / optimization, analytical characterization, sensory evaluation, and regulatory approval



  • Bachelor’s degree in molecular and cell biology, biochemistry, bioengineering, chemical engineering or related field with 2+ years of relevant technical and industrial experience
  • Working familiarity with aseptic techniques and microbial fermentation as well as analysis of such fermentations including dry cell weight, optical density, and other plate-based assays. 
  • Prior knowledge of protein analysis such as SDS-PAGE and Western Blot is a plus.
  • Strong analytical and problem solving skills; outstanding written and verbal communication 
  • Flexibility and adaptability to meet the dynamic needs of a startup environment


This is a hands-on position that will require the incumbent to be onsite in the Davis HQ location.

We want the best people and we don’t want biases holding us back. We strongly encourage people of every color, orientation, age, gender, origin, and ability to apply. Because we value a diverse workplace, we prioritize an inclusive climate absent of discrimination and harassment during the application process and after you join the team.

Research indicates that men tend to apply for jobs when they meet just 60% of the criteria, while women and other marginalized groups only apply if they are a 100% match. If you are passionate about our mission and think you have what it takes to be successful in this role even if you don’t check all the boxes, please apply. We’d appreciate the opportunity to consider your application. 


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  • Location
    Davis, California
  • Department
  • Employment Type