Pilot-Scale Upstream Bioprocess Scientist

Zohorecruit; San Mateo (CA); On-site; USD 155,669,000 - 158,424,000; Full time

Benefits offered by this job

Medical insurance

Paid sick leave

401K

Job summary

Our client in the life sciences sector seeks an Associate Scientist - Upstream Bioprocess based in Foster City, CA, to support pilot-scale biologics development. The role involves executing upstream culture, promptly addressing process issues, and assisting technology transfers in a fast-paced lab setting.

Requirements include hands-on upstream cell culture experience at bench to manufacturing scale, strong documentation skills, and a collaborative, safety-focused mindset in a schedule-driven

Qualifications

• HANDS-ON upstream cell culture/bioprocessing at bench, pilot, or manufacturing scale.
• Experience with bioreactors, media/buffer preparation, and process execution.
• Strong technical documentation and data communication.
• Organized, collaborative, safety-focused in a schedule-driven environment.

Responsibilities

• Execute upstream cell culture using shake flasks, WAVE systems, and 100L/500L single-use bioreactors.
• Prepare media, buffers, and reagents; set up equipment and support teardowns.
• Perform bioreactor sampling, feeding, and end-to-end run support.
• Troubleshoot pilot runs, equipment, inventory, analytics, and lab readiness.
• Maintain SOPs, Benchling records, run summaries, deviations, and change notes.
• Support technology transfers and monitor process performance.

Skills

Upstream cell culture

Bioprocessing

Documentation

Team collaboration

Safety culture

Education

AA/AS + 4+ years experience

BS/BE in Chemical/Biochemical Eng or Biology + 2+ years

Job description

Our client in the life sciences sector seeks an Associate Scientist - Upstream Bioprocess based in Foster City, CA, to support pilot-scale biologics development. The role involves executing upstream culture, promptly addressing process issues, and assisting technology transfers in a fast-paced lab setting.

Requirements include hands-on upstream cell culture experience at bench to manufacturing scale, strong documentation skills, and a collaborative, safety-focused mindset in a schedule-driven