Bioprocess Engineer I

Bioprocess Engineer IRubi is pioneering the next era of manufacturing with its proprietary enzyme cascade technology. Our cell-free biocatalysis platform converts waste carbon into high-value materials - including cellulose textiles, chemicals, and polymer ingredients - requiring a fraction of the energy use and capital investment of traditional manufacturing systems.Our modular production systems are designed to be deployed anywhere, enabling us to establish resilient and decarbonized supply chains at projected cost parity with existing products. We've established partnerships with global manufacturers and retailers including Walmart, H&M, and Patagonia, and have been honored as World Economic Forum Technology Pioneers, MIT Tech Review 35 Innovators Under 35, European Patent Office Young Inventors Prize winners, and H&M Global Change Award winners.As Rubi Laboratories continues to grow, we are expanding our team to support the full range of scientific expertise behind our technology.

We are seeking a Bioprocess Engineer I to collaborate closely with our engineers and scientists in executing experiments and supporting day-to-day operations. In this role, you will directly contribute to advancing our product and scaling the availability of our carbon-negative materials for leading global brands. This is an opportunity to build hands-on experience in a fast-paced startup environment while applying your expertise to develop solutions that drive meaningful environmental impact.ResponsibilitiesHands-on experiment execution in the labCleaning, setup, and operation of bioreactorsEnzyme downstream processing/filtrationHomogenization (cell disruption)Western blots and routine protein/enzyme analyticsSupporting process scale-up to thousands of liters (1,000L+)Requirements/QualificationsBachelors in Chemical Engineering, Bioprocess Engineering, or related field2+ years of industry experienceBioreactor operation (setup, cleaning, running)Filtration (TFF/depth/membrane filtration, ideally with proteins)Protein handling and purification fundamentalsComfort with process-heavy, hands-on engineering workRubi Laboratories is dedicated to providing a supportive work environment for all our employees.

We provide a competitive salary, generous equity, and benefits in a rapidly growing venture-backed company with all the exciting career and growth opportunities that come with it.Compensation: $85,000 - $105,000 annually; actual compensation may vary based on skills, experience, and geographic location.Benefits:Medical, Dental, and Vision insurance (100% coverage of monthly fees of base plan for our employees and their dependents)401K with up to 2% company match at 100%Generous equityFlexible Paid Time Off (PTO) plus 16 Paid Company Holidays, including company-wide Winter break (1 week)Daily $12 meal credit through Forkable meal delivery M-FFree snacks in-officeA mission-driven environment solving one of the world's most pressing sustainability challenges through cutting-edge biotechnologyHands-on experience with engineered enzyme platforms alongside a world-class interdisciplinary teamDirect impact on breakthrough materials used by global brands, with the opportunity to help scale technology from lab to marketWe are excited to explore applicants with all different backgrounds so if you think you have the experience, please apply! Rubi Laboratories is dedicated to establishing a diverse employee base.This position is in our Alameda, CA headquarters and requires on-site presence to complete the required work described. Rubi Laboratories cannot offer relocation assistance for this position.Legal authorization to work in the U.S.

is required. Rubi Labs cannot offer employment visa sponsorship at this time.In compliance with federal law, all persons hired will be required to verify identity and eligibility to work in the United States and to complete the required employment eligibility verification form upon hire.