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Upstream Process Development information

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How much do upstream process development jobs pay per hour?

As of Jun 14, 2026, the average hourly pay for upstream process development in California is $26.17, according to ZipRecruiter salary data. Most workers in this role earn between $23.27 and $27.50 per hour, depending on experience, location, and employer.

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

Success in Upstream Process Development requires a strong background in biology, biochemistry, or chemical engineering, often with an advanced degree and experience in cell culture or fermentation techniques. Familiarity with bioreactors, process control systems, and analytical instrumentation, as well as knowledge of cGMP regulations, is essential. Critical thinking, problem-solving, and effective communication are important soft skills for optimizing processes and collaborating across multidisciplinary teams. These competencies ensure efficient development of scalable production processes, maintaining product quality and regulatory compliance.

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

AspectUpstream Process DevelopmentDownstream Process Development
FocusDevelopment of cell culture, fermentation, and bioreactor processesPurification, filtration, and formulation of bioproducts
Skills & CredentialsBioprocess engineering, molecular biology, biochemistryBioprocessing, chromatography, analytical chemistry
Work EnvironmentLaboratories, bioreactors, pilot plantsPurification facilities, labs, quality control
Industry UsageBiotech, pharmaceutical manufacturingBiotech, pharmaceutical manufacturing

Upstream Process Development focuses on creating and optimizing cell culture and fermentation processes to produce bioproducts. In contrast, Downstream Process Development involves purifying and finishing these products. Both roles are essential in biopharmaceutical manufacturing and require similar scientific backgrounds, but they specialize in different stages of bioprocessing.

What is upstream process development?

Upstream process development refers to the optimization and scaling of biological production processes that occur before product harvesting. This primarily involves the cultivation of cells or microorganisms to produce a desired product, such as a protein or antibody, in bioreactors. Scientists in this field work on improving cell lines, culture media, and fermentation conditions to maximize yield and quality. Upstream process development is a critical early phase in biomanufacturing, laying the foundation for downstream processing and overall production efficiency.

What are some common challenges faced in upstream process development and how do teams typically address them?

One of the main challenges in upstream process development is optimizing cell culture conditions to consistently achieve high yields and product quality. Teams often encounter variability in biological systems and must troubleshoot issues such as contamination, scale-up inconsistencies, or nutrient limitations. Collaboration with analytical, downstream, and quality teams is essential to identify root causes and implement solutions. Regular data review meetings, cross-functional problem-solving, and continuous process improvement are standard practices to ensure robust upstream processes.
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Upstream Process Development jobs near you
Infographic showing various Upstream Process Development job openings in California as of June 2026, with employment types broken down into 86% Full Time, and 14% Contract. Highlights an 100% In-person job distribution, with an average salary of $54,428 per year, or $26.2 per hour.
Senior Associate Engineer, Upstream Development for Protein Development and Manufacturing (Contract)

Senior Associate Engineer, Upstream Development for Protein Development and Manufacturing (Contract)

Vaxcyte

San Carlos, CA • On-site

$57 - $63/hr

Full-time

Posted 12 days ago

Job description

Join our Mission to Protect Humankind!
Vaxcyte is a clinical-stage vaccine innovation company engineering high-fidelity vaccines to protect humankind from the consequences of bacterial diseases, which have serious and costly health consequences when left unchecked. Working to eradicate or treat bacterial infections such as invasive pneumococcal disease, Group A Strep, and Shigella is just the beginning. Our path to success is clear and well-defined, and Vaxcyte is set up to go the distance.
WHAT we do is every bit as important as HOW we do it! Our work together is guided by four enduring core values:
*RETHINK CONVENTION: We bring creative and intellectual diversity to every facet of the work we do in order to innovate and re-innovate the way vaccines are delivered.
*AIM HIGH: We embody our collectively audacious goal to courageously make the most complex biologics ever attempted to protect humankind.
*LEAD WITH HEART: Everyone leads at Vaxcyte with a kindness-first, inclusive approach to collaboration and vigorous debate that advances our business objectives.
*MODEL EXCELLENCE: The magnitude of our challenge requires our shared commitment to demonstrating integrity, accountability, equality and clarity across communications and decision making.
Summary:
Vaxcyte is seeking a talented and experienced Senior Associate Engineer to join the Upstream Process Development group within the Protein Development and CMC team. This is an exciting opportunity to join an outstanding team pursuing bacterial fermentation development at Vaxcyte.
The successful candidate will have the following skills and qualities:
  • Hands-on experience operating and maintaining bioreactors, including Ambr® 250, at laboratory scale.
  • Experience with pilot scale fermentation and recovery equipment is a plus.
  • Skillful in analyzing and presenting data for process improvements, troubleshooting, and optimization.
  • An exceptional team player who works seamlessly with others, speaks up, and remains focused on achieving the best results to achieve company goals.
  • Strong organizational and planning skills.
Essential Functions:
  • Lead and collaborate in operational activities related to bioreactor set-up, monitoring, harvest, and maintenance.
  • Develop, test, and implement recipe scripting for fed-batch fermentation feeding controls.
  • Provide engineering support for design, implementation, and qualification of scale-down models.
  • Author SOPs (standard operating procedure), process flow diagrams and batch records.
  • Analyze and present fermentation data at internal project meetings. Participate in upstream database management and documentation in electronic notebooks.
Requirements:
  • BS in Chemical Engineering or a related discipline with 5+ years of relevant Pharma/Biotech industry experience, or MS with 2+ years of relevant Pharma/Biotech industry experience.
  • Hands-on experience with fermentation and/or primary recovery unit operations.
    • Good understanding in fundamentals of bioreactor design, operation and controls.
    • Strong knowledge of aseptic techniques
    • Mechanical and technical knowledge of primary recovery unit operations such as homogenization, centrifugation, and depth filtration, is a plus
    • Understanding of fermentation scale up and development of scale down models
  • Familiarity with DoE (Design of Experiments) principles and software.
  • Familiarity with regulatory requirements of biotherapeutics. Late-stage process characterization experience is a plus.

Reports to: Senior Scientist, Upstream Development for Protein Development & Manufacturing
Location: San Carlos, CA
Expected Contract Length: 12 Months
Hourly Range: $57.00 - $63.00
We are an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability or veteran status.
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About Vaxcyte

Sourced by ZipRecruiter

Industry

Biotechnology research and development

Company size

51 - 200 Employees

Headquarters location

San Carlos, CA, US

Year founded

2013

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