---
title: 'Senior Bioprocess Engineer II, MSAT, Proteins at Vaxcyte'
canonical: 'https://feeny.ai/job/senior-bioprocess-engineer-ii-msat-proteins-vaxcyte-visp-valais-sfkyafmqg7tb'
type: 'job'
last_seen: '2026-09-14'
---

# Senior Bioprocess Engineer II, MSAT, Proteins at Vaxcyte

- **Company:** Vaxcyte
- **Location:** Visp Valais, Switzerland
- **Posted:** 2026-09-11
- **Last confirmed live:** 2026-09-14
- **Apply:** https://boards.greenhouse.io/vaxcyte/jobs/5418817008?gh_jid=5418817008

## 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 looking for an energetic and talented individual to join the Manufacturing Science and Technology (MSAT) team in the role of Protein Intermediates Sr Bioprocess Engineer. The incumbent will support the microbial manufacturing operations from commercial readiness through PPQ and ongoing commercial production, onsite at contract manufacturing organizations (CMO), with the primary responsibility to provide technical and operational support of manufacturing operations that ensure robust and efficient manufacturing processes. This position will primarily be located in Visp, Switzerland, but will have responsibilities to oversee CMOs in Italy and Germany as well.

This position will require the candidate to manage the highly complex microbial manufacturing processes for Vaxcyte’s vaccine portfolio. This is an exciting opportunity to join an outstanding team, with a mission to support late-stage clinical manufacture, launch, and commercial operations for the PCV franchise.  The successful candidate will have the following skills and qualities:

- A skilled process engineer with expertise in:
- microbial fermentation (cell expansion, fed-batch fermentation)
- primary recovery (centrifugation, diverse filtrations, precipitation)
- Purification (Ultrafiltration/Diafiltration and Chromatography)
- An exceptional team player who works seamlessly with others, speaks up, and remains focused on achieving the best results to attain company goals.
- The ability to analyze data and communicate conclusions, decisions and recommendations concisely to key stakeholders.
- A strong sense of ownership and accountability; commitment to Vaxcyte’s mission of protecting humankind.

Essential Functions:

- Work cross functionally with program management, process development, quality, facilities, regulatory, finance, logistics, clinical supply, and CMO / supplier management to ensure manufacture under GMP of different polysaccharide intermediates required for Vaxcyte’s vaccine portfolio.
- Oversight of CMO service provider(s) to ensure delivery of commercial readiness, process validation, and commercial stage manufacturing campaigns.
- Enable MSAT DS team participation in technology transfer, equipment/technology procurement and qualification, late-stage process characterization, process validation, and deviation and deficiency investigations and troubleshooting.
- Lead all aspects of and engage in the planning, design, execution, and documentation of Polysaccharides manufacturing process Investigations and CAPAs.
- Drive continuous improvement and change management in Polysaccharides manufacturing processes through technological innovation and application of first principles in process engineering.
- Support the process to select new CMOs and suppliers.
- Leverage literature, industry/regulatory guidance, and practical experience to perform work and influence CMC strategies.
- Recommend and implement new technology that advances knowledge and productivity within the department. Drive continuous improvement.
- Author and review technical reports, manufacturing documents, regulatory submissions, and publications.
- Present at department, project team, and senior management meetings. May present externally at scientific conferences.
- Support the CMOs during inspections of health authorities where necessary and ensure proper follow-up of any potential observation or recommendation.

Requirements:

- PhD in Bio/Chemical Engineering or Microbiology/Chemistry/Biochemistry with 8+ years of relevant Pharma/Biotech industry experience, or Master’s degree in Bio/Chemical Engineering or Microbiology/Chemistry/ Biochemistry with 5+ years of relevant Pharma/Biotech industry experience.
- Experience with Vaccine manufacturing operations preferred.
- Strong experience in Drug Substance Manufacturing under GMP regulations required. Understanding of Quality systems. Experience in Drug Substance manufacturing equipment specification and qualification preferred.
- Strong scientific or technological (process engineering) background and hands-on experience with bacterial fermentation, product recovery, and purification processes. Commercial manufacturing experience preferred.
- Deep knowledge of protein-polysaccharide conjugation principles; OR In-depth understanding of bacterial fermentation principles, bioreactor systems and process analytics/control systems
- Sound knowledge of
- product recovery unit operations such as homogenization/microfluidization, centrifugation, and depth filtration
- product purification unit operations such as chromatography, UF/DF TFF, and precipitation
- process analytics/control systems
- Experience with cell-free upstream technology is a plus but not required.
- Strong ability in troubleshooting equipment/technology and process. Adept at FMEA. Excellent analytic skills. Experience in Investigations and development and implementation of CAPAs preferred.
- Experience with facility fit assessment, facility start-up, technology transfer, process validation, and scale-down studies implementing DOE desired.
- Strong interpersonal and leadership skills. Ability to communicate effectively both verbally and in written formats. Experience with Cross-Functional teams and managing direct reports.
- Proven technical leadership skills including strong project management skills.
- Fluency in spoken and written English is mandatory.

Reports to: Associate Director, MSAT, Proteins

Location: Visp, Switzerland

Work Arrangement (may be adjusted based on business needs, job responsibilities, or changes to company policy):

Hybrid (minimum of 3 days per week onsite)

Compensation:

The compensation package will be competitive and includes comprehensive benefits and an equity component.

Relocation:

This role is not eligible for relocation assistance.

## Equal Opportunity

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.

Recruitment Fraud Notice

Please be aware of fraud or scams from individuals, organizations and/or internet sites claiming to represent Vaxcyte in recruitment activities. Vaxcyte has an established recruitment process for all positions prior to issuing an offer for employment and we will never extend unsolicited employment offers or ask candidates to provide financial or sensitive personal information as part of the application process. All legitimate communication from Vaxcyte will come from an official @vaxcyte.com email address. Qualified and interested candidates should apply to current openings at [vaxcyte.com/careers](https://vaxcyte.com/careers/).

## About Vaxcyte

## Company Overview
- **One-liner**: Vaxcyte is a clinical-stage biotechnology company re-engineering how vaccines are made to eliminate bacterial infections, using a cell-free protein synthesis platform to develop high-fidelity, broad-spectrum vaccines.
- **Entity Type**: Public (Ticker: PCVX)
- **Headquarters**: San Carlos, California, United States
- **Founded**: 2013 (as SutroVax; rebranded to Vaxcyte in 2020)
- **Founders**: Not publicly available (the company emerged from Sutro Biopharma’s spin-out)

## Core Business
- **Primary industry**: Biotechnology / Vaccines (Infectious Disease)
- **Target customers**: Global healthcare systems, public health organizations, and ultimately patients (B2B/Institutional); the company develops vaccines for both pediatric and adult populations.
- **Mission or purpose**: To protect humankind from the consequences of bacterial infections, eliminating diseases like invasive pneumococcal disease, Group A Strep, and Shigella.

## Products & Services
- **VAX-31 (31-valent PCV)**: A broad-spectrum pneumococcal conjugate vaccine candidate in Phase 3 for adults and Phase 2 for infants. Designed to cover over 95% of circulating IPD serotypes in U.S. adults 50+ and ~94% in infants. FDA Breakthrough Therapy designation granted.
- **VAX-24 (24-valent PCV)**: A pneumococcal conjugate vaccine candidate in Phase 2 for infants, designed to cover more serotypes than any infant PCV on the market today.
- **VAX-A1 (Group A Strep)**: A preclinical conjugate vaccine candidate for Group A Strep, a disease with no currently approved vaccine. Phase 1 first-in-human study (adults) underway in Australia.
- **VAX-GI (Shigella)**: A novel preclinical vaccine candidate targeting Shigella, a leading cause of diarrheal disease.
- **Platform Technology**: A proprietary cell-free protein synthesis platform that enables site-specific, carrier-sparing conjugation to produce precisely targeted vaccines with enhanced immunogenicity.

## Market Standing
- **Valuation/Market Cap**: ~$16.7 billion (as of early July 2026)
- **Key Metric**: Total funding raised (private) is not applicable; as a public company, key metrics include cash position (~$2.0 billion as of Q1 2026) and R&D investment. The company is pre-revenue.
- **Notable Investors/Partners**: Major institutional investors include Baker Bros. Advisors, Fidelity, and funds managed by BlackRock. Key partnership: exclusive license agreement with Sutro Biopharma for its cell-free protein synthesis platform.
- **Growth Signals**: 
  - Up to $1 billion commitment to expanding U.S. manufacturing with a new facility in North Carolina.
  - VAX-31 Phase 3 program (OPUS-1, OPUS-2, OPUS-3) topline data expected Q4 2026 – H1 2027.
  - Headcount growth: actively hiring across 100+ roles (Analytical, Commercial, Clinical, Conjugation, Quality, Regulatory).
  - Recognized as a Great Place to Work and Best Workplace in BioPharma (multiple years).

## Competitive Advantages
- **Broadest-spectrum PCV candidates**: VAX-31 is the broadest-spectrum pneumococcal conjugate vaccine in the clinic, targeting up to 31 serotypes.
- **Differentiated platform**: Cell-free protein synthesis allows for the creation of complex, high-fidelity vaccines that can overcome bacterial defense mechanisms (e.g., capsule-switching) that limit conventional cell-based vaccines.
- **Carrier-sparing technology**: Site-specific conjugation enables a higher valency (more serotypes) without compromising immunogenicity or tolerability.
- **Manufacturing scale**: Significant investment in U.S.-based production capacity provides a long-term supply chain advantage and aligns with "Investing in America" initiatives.

## Strategic Focus
- **Primary**: Advance VAX-31 and VAX-24 through late-stage clinical trials to secure regulatory approval and establish a new standard of care for pneumococcal disease.
- **Pipeline expansion**: Advance VAX-A1 (Group A Strep) and VAX-GI (Shigella) candidates through early clinical development.
- **Manufacturing**: Scale up internal manufacturing capabilities to support commercial launch and global supply.
- **Commercial readiness**: Building a commercial organization (e.g., hiring a VP of U.S. Market Access & Pricing, Senior Director of Product Launch) to prepare for potential VAX-31 launch.

## Why Work Here
- **Culture**: Described as a "kindness-first" mindset with a focus on audacious goals, collaboration, and mutual support. Recognized as a *Great Place to Work* and *Best Workplace in BioPharma* (Fortune).
- **Work Model**: Hybrid, Remote, and Onsite options available depending on role. San Carlos HQ offers a hybrid schedule.
- **Total Rewards**: 100% paid health, dental, and vision insurance; 401k matching; flexible PTO and holidays; paid parental and sick leave; equity awards (stock options & RSUs); Employee Stock Purchase Plan; lifestyle spending account; mental health and wellness resources.
- **Growth & Development**: Strong emphasis on learning culture, professional advancement through coaching, and career development programs.
- **Mission-driven**: Employees are directly contributing to creating vaccines that protect every child born and every adult at risk from bacterial infections globally.

## Sources
1. [vaxcyte.com](https://vaxcyte.com/)
2. [vaxcyte.com/careers](https://vaxcyte.com/careers/)
3. [vaxcyte.com/job-listings](https://vaxcyte.com/job-listings/)
4. [vaxcyte.com/culture](https://vaxcyte.com/culture/)
5. [vaxcyte.com/pipeline](https://vaxcyte.com/pipeline/)

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