Location: Vacaville, CA

This is a fully site‑based role. Working together in person supports close, real‑time collaboration and the technical precision needed to manufacture medicines to the highest quality and safety standards.

MSAT Senior Scientist will independently lead the technical transfer of multiple concurrent manufacturing processes (Upstream - USP) from Process Development, Pilot Scale and other sites of manufacture to GMP operations. The role will be a recognized process expert. Supporting multiple customer project teams to deliver manufacturing processes in negotiation with external customers as well as other internal cross-functional teams. This role has the opportunity to develop an extensive internal network. Building influence and credibility in the industry. In addition, the role will act as a coach/mentor to more junior team members and cross functionally as a Subject Matter Expert (SME).

What you will get

The full-time base annual salary for this position is expected to range between $107,250 to $178,750. In addition, below you will find a comprehensive summary of the benefits package we offer:

Performance-related bonus
Medical, dental and vision insurance
401(k) matching plan
Life insurance, as well as short-term and long-term disability insurance
Employee assistance programs
Paid Time Off

What you will do

Lead and represent MSAT on customer-facing project teams, ensuring successful transfer of new and existing upstream processes into GMP manufacturing using standardized technology transfer methodologies.
Drive the introduction, qualification, and implementation of new upstream process technologies in cGMP manufacturing through effective cross-functional leadership and technical oversight.
Provide scientific leadership and technical expertise to evaluate, champion, and implement innovative manufacturing technologies while continuously improving existing processes.
Lead complex investigations and Root Cause Analysis (RCA) to resolve manufacturing process challenges and drive continuous improvement, compliance, and operational excellence.
Direct multidisciplinary teams and manage major technical projects, including the introduction of new processes, equipment, and technologies, while ensuring delivery of project objectives.
Design and implement manufacturing control strategies and Continuous Process Verification (CPV) systems to maintain process robustness, product quality, and regulatory compliance for commercial products.
Serve as a key technical SME for regulatory inspections, audits, customer interactions, and business development activities, including technical document review, proposal support, and representation of Lonza in customer meetings.

What we are looking for

Bachelor’s degree in life sciences or relevant field.
Strong technical writing, collaboration with customers and teams
A deep understanding of biologics processes and manufacturing
Strong analytical skills to identify issues, assess data, and propose solutions.
Effective communication and.
Ability to evaluate data and drive process improvements.
Adaptable to fast-paced environments, shifting workloads, and timelines.

About Lonza

At Lonza, our people are our greatest strength. With 30+ sites across five continents, our globally connected teams work together every day to manufacture the medicines of tomorrow. Our core values of Collaboration, Accountability, Excellence, Passion and Integrity reflect who we are and how we work together. Everyone’s ideas, big or small, have the potential to improve millions of lives, and that’s the kind of work we want you to be part of.

Innovation thrives when people from all backgrounds bring their unique perspectives to the table. At Lonza, we offer equal employment opportunities to all qualified applicants regardless of race, religion, color, national origin, sex, sexual orientation, gender identity, age, disability, veteran status, or any other characteristic protected by law.

Ready to shape the future of life sciences? Apply now.

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