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Upstream Process Development Scientist Jobs in California

Meissner

R&D Bioprocessing Scientist I

Camarillo, CA

This may include upstream experiments to support cell culture and bioreactor process development ... Mentor junior scientists and research associates as needed. * Ensure compliance with all safety ...

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Upstream Process Development Scientist information

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$38

$60

How much do upstream process development scientist jobs pay per hour?

As of Jun 9, 2026, the average hourly pay for upstream process development scientist in California is $38.16, according to ZipRecruiter salary data. Most workers in this role earn between $27.98 and $45.53 per hour, depending on experience, location, and employer.

What are the key skills and qualifications needed to thrive as an Upstream Process Development Scientist, and why are they important?

To thrive as an Upstream Process Development Scientist, you need a strong background in bioprocess engineering, cell culture, and molecular biology, typically supported by a degree in life sciences or biochemical engineering. Familiarity with bioreactor systems, analytical instrumentation, and data analysis software, as well as experience with cGMP and regulatory guidelines, is essential. Strong problem-solving abilities, teamwork, and effective communication help drive innovation and collaboration in the lab. These skills are crucial for optimizing cell culture processes, ensuring product quality, and meeting timelines in biopharmaceutical development.

What are some typical challenges faced by Upstream Process Development Scientists, and how are they addressed in the workplace?

Upstream Process Development Scientists often encounter challenges such as optimizing cell culture conditions for maximum yield, scaling up processes from bench to pilot or production scale, and troubleshooting variability in biological systems. These challenges are typically addressed through rigorous experimental design, close collaboration with cross-functional teams like analytical development and quality assurance, and leveraging data-driven approaches to problem-solving. Regular team meetings and access to advanced instrumentation also provide support, ensuring that scientists can quickly adapt to evolving project needs and industry standards.

What does an Upstream Process Development Scientist do?

An Upstream Process Development Scientist is responsible for designing, optimizing, and scaling up processes for the production of biological products such as proteins, vaccines, or antibodies. They primarily focus on cell culture, fermentation, and bioreactor operations to maximize yield and product quality. These scientists work closely with research and manufacturing teams to develop efficient and reproducible processes that can be transferred to large-scale production. Their work is essential in the biotechnology and pharmaceutical industries for the development of new therapeutics.

What is the difference between Upstream Process Development Scientist vs Downstream Process Development Scientist?

AspectUpstream Process Development ScientistDownstream Process Development Scientist
Focus AreaBioreactor cultivation, cell culture optimization, media developmentPurification, filtration, chromatography, product recovery
Skills & CertificationsCell biology, bioprocessing, GMP regulationsProtein chemistry, purification techniques, GMP compliance
Work EnvironmentLaboratories, bioreactors, pilot plantsLaboratories, purification facilities, pilot plants
Industry UsageBiopharmaceuticals, biotech companies, contract manufacturingBiopharmaceuticals, biotech companies, contract manufacturing

Both roles are essential in bioprocessing, with upstream scientists focusing on cell growth and media optimization, while downstream scientists handle product purification. They often collaborate closely within biopharmaceutical manufacturing to ensure efficient production and high-quality biologics.

What are popular job titles related to Upstream Process Development Scientist jobs in California? For Upstream Process Development Scientist jobs in California, the most frequently searched job titles are:
What job categories do people searching Upstream Process Development Scientist jobs in California look for? The top searched job categories for Upstream Process Development Scientist jobs in California are:
Upstream Process Development Scientist jobs near you
Principal Scientist, Late Stage Upstream Process Development

Principal Scientist, Late Stage Upstream Process Development

CEDENT

San Francisco, CA

Full-time

Posted 16 days ago

Job description

Client is seeking an experienced and driven scientist/engineer to lead late-stage upstream cell culture process development activities for clinical and commercial-stage large molecule programs. This individual will serve as the upstream lead for scale-up and tech transfer to manufacturing sites, establishing process validation (PV) strategy and PPQ/post-approval process support.
Key Accountabilities/ Core Job Responsibilities
  • Lead scale-up and tech transfer of the upstream process to manufacturing sites, ensuring alignment with control strategy and regulatory filings.
  • Serve as the technical lead, responsible for upstream process activities for a late-stage large molecule programs including commercial manufacturing support
  • Author and review relevant CMC documentation including PV protocols/reports and regulatory sections (e.g., BLA, IND amendments).
  • Develop and execute strategies for process performance qualification (PPQ) and continued process verification (CPV).
  • Collaborate cross-functionally with MSAT, Downstream, Analytical Development, CMC management, Manufacturing Operations, QA, QC, Regulatory, and Contract Manufacturers
  • Represent upstream function in regulatory strategy, technical meetings, and CDMO interactions.
  • Provide technical support for upstream process-related investigations, product impact assessments, change control assessments, CAPA assessments etc.
Qualifications/Skills
  • PhD in biology, biochemistry, chemical engineering or related scientific discipline with minimum 7 years of cell culture process development experience in the biotech/biopharma industry; or BS/MS with 12+ years of experience.
  • In-depth understanding of CHO-based fed-batch processes, scale-up/scale-down principles, and statistical tools.
  • Thorough understanding of cell culture bioreactors including microbioreactors, bench-scale and pilot-scale bioreactors, and scaleup/tech transfer activities
  • Demonstrated experience with late-stage upstream process development, PPQ strategy, tech transfer and BLA authoring
  • Strong knowledge of regulatory expectations for process validation and control strategies.
  • Excellent communication, leadership, and cross-functional collaboration skills.
  • Demonstrated ability for taking initiative, creativity, and innovation in problem solving
  • Experience working with novel large molecule formats such as bispecific antibodies and Fusion proteins/enzymes is a plus
  • Demonstrated technical writing, critical thinking, scientific problem-solving and communication skills
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About Cedent

Sourced by ZipRecruiter

CEDENT strives to attract and retain the best people and provide an environment where they can all develop professionally and build a rewarding career. As a result, we create an inclusive environment that is rich in diversity, acknowledges each individual's uniqueness and promotes respect, personal achievement and stewardship. Our clients are global and so is CEDENT. We build and maintain a global workforce that includes people from different backgrounds, with a vast range of skills and experience all united by a common culture and commitment to help our clients achieve high performance. Cultivating a diverse workforce and inclusive work environment makes business sense. Our peoples varied skills are the talent engine that powers CEDENT, enabling it in turn to deliver the innovative solutions that help our clients outperform competitors.

Industry

It services

Company size

11 - 50 Employees

Headquarters location

Plano, TX, US

Year founded

2008

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