Associate Scientist - Biology II

Onsite

• Foster City
• 5 days/week Occasional weekends as neededDownstream Bioprocess Associate (Contract)Pilot-scale downstream purification | Biologics Process Development | Foster City, CA | 100% onsite | 12-month contract from start date

I m looking for a hands-on downstream bioprocess professional to join our Biologics Pilot Lab in Foster City.You ll help execute pilot-scale purification runs, troubleshoot in real time, and support biologics programs from development through scale-up and technology transfer.

Why This Opportunity Stands OutWork directly with pilot-scale chromatography, TFF, viral filtration, depth filtration, centrifugation, and single-use equipment.Build practical skills in scale-up, end-to-end run execution, controlled documentation, troubleshooting, and technology transfer.Contribute to multiple early- and late-stage biologics programs in a collaborative, fast-moving environment.Gain meaningful continuity through a 12-month contract that runs from your start date.

What You ll DoPlan and execute downstream purification runs, including clarification, chromatography, TFF, and viral filtration, in a schedule-driven pilot environment.Prepare buffers and reagents; set up, operate, clean, and tear down pilot-scale and single-use equipment.Pack and unpack chromatography columns, operate A KTA systems, and use UNICORN methods for run execution.Document work in SOPs, batch records, run sheets, and summaries; capture observations and deviations clearly.Monitor process performance, interpret data, troubleshoot during runs, and communicate findings to cross-functional partners.Support process scale-up, comparability activities, technology transfer, lab readiness, and occasional weekend or extended-hour coverage.

What You ll BringRequired: Hands-on pilot-scale downstream bioprocess experience.Experience with downstream purification operations such as chromatography, TFF, viral filtration, depth filtration, centrifugation, and buffer preparation.Experience operating A KTA systems and working with UNICORN; chromatography column operation experience is strongly relevant.Clear technical communication, documentation, organization, and collaborative problem-solving skills.Your broader experience can come from bench, pilot, or manufacturing settings; hands-on pilot-scale work is the one must-have.

Nice to HaveEnd-to-end purification process execution rather than experience with only one unit operation.Biologics pilot plant, manufacturing support, technology transfer, or GMP-adjacent experience.Experience with single-use facilities, controlled documentation, process scale-up, or comparability activities.Flexibility to support occasional weekend or extended-hour run coverage.

EducationAA/AS degree with more than 4 years of relevant industry experience in downstream purification or bioprocessing; orBS/BE in chemical or biochemical engineering, biochemistry, biology, or a related discipline with more than 2 years of relevant experience.