Bioprocess Engineer I — Hands-On Lab to Scale-Up

Dover; Alameda (CA); On-site; USD 85,000 - 105,000; Full time

Benefits offered by this job

Medical, Dental, and Vision insurance

401K with company match

Generous equity

Flexible Paid Time Off

Job summary

Rubi Laboratories in Alameda, CA is seeking a Bioprocess Engineer I to collaborate with engineers and scientists, executing experiments and supporting daily operations. You will contribute to advancing our carbon-negative materials by advancing our enzyme cascade platform in a fast-paced startup environment.

The role offers hands-on bioprocess work, scale-up preparation, and collaboration across disciplines to drive scalable, sustainable manufacturing for leading brands.

Qualifications

• Bachelor's in Chemical Engineering or Bioprocess Engineering or related field.
• 2+ years of industry experience.
• Bioreactor operation (setup, cleaning, running).
• Filtration (TFF/depth/membrane) for proteins.
• Protein handling and purification fundamentals.
• Comfort with process-heavy, hands-on engineering work.

Responsibilities

• Hands-on experiment execution in the lab.
• Cleaning, setup, and operation of bioreactors.
• Enzyme downstream processing/filtration.
• Homogenization (cell disruption).
• Western blots and routine protein/enzyme analytics.
• Supporting process scale-up to thousands of liters (1,000L+).

Skills

Hands-on lab experience

Process development

Protein handling

Education

Bachelor's in Chemical Engineering/Bioprocess Engineering

Tools

Bioreactor operation

Filtration (TFF/depth/membrane)

Job description

Rubi Laboratories in Alameda, CA is seeking a Bioprocess Engineer I to collaborate with engineers and scientists, executing experiments and supporting daily operations. You will contribute to advancing our carbon-negative materials by advancing our enzyme cascade platform in a fast-paced startup environment.

The role offers hands-on bioprocess work, scale-up preparation, and collaboration across disciplines to drive scalable, sustainable manufacturing for leading brands.