Process Expert

Process Expert - MSAT DSP

Every day, Lonza’s teams across the world work together to turn scientific breakthroughs into life-changing medicines that reach up to 100 million patients a year. Lonza is a place where people can make a unique impact, grow their careers and belong. 

Join our team in Visp as an MSAT Process Expert in Mammalian Cell Culture Downstream Processing (DSP) within Ibex. In this role, you will apply scientific and operational expertise to ensure robust, efficient, and high-quality manufacturing processes for biopharmaceutical production.

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.

What you will get: 

• An agile career and dynamic working culture.

• An inclusive and ethical workplace.

What you will do:

• Serve as the primary technical contact and subject matter expert for downstream processing (DSP) in mammalian cell culture manufacturing within Ibex.

• Lead technical transfer, scale-up, and implementation of downstream purification processes into clinical and commercial production facilities.

• Perform technical troubleshooting, root cause analysis, and lead complex investigations for process deviations and yield non-conformances.

• Analyze manufacturing data, monitor process consistency, and drive continuous process improvements and optimization initiatives.

• Collaborate cross-functionally with Operations, Quality Assurance, MSAT Lab, and customers to ensure smooth manufacturing execution and alignment.

• Author, review, and approve critical technical documentation including batch records, campaign summaries, and regulatory filings.

What we are looking for:

• Bachelor's, Master's, or PhD degree in Biotechnology, Chemical Engineering, Biochemistry, or a related scientific discipline.

• Proven experience in downstream processing (purification) for mammalian cell culture biopharmaceutical manufacturing or MSAT environments.

• In-depth technical expertise in unit operations such as chromatography, filtration (UF/DF, TFF, viral filtration), and process scale-up.

• Strong problem-solving, analytical, and structured investigation skills in a GMP manufacturing environment.

• Excellent communication skills and fluent in English; German language skills are an advantage.

You will feel at home at Lonza if you: 

• Take ownership, step forward, and enjoy meaningful responsibility 

• Love solving problems and thrive in a complex, fast-moving environment 

• Are curious, always looking to learn and improve 

• Work collaboratively, contributing to something bigger than yourself 

• Are motivated to make a difference through work that impacts customers and their patients

Why Lonza: 

Lonza is a place of unique opportunity, where your ideas, expertise and ambition can make a real difference. At Lonza, you will have the freedom to grow, the support to succeed and the chance to contribute to work that matters. 

As Lonza’s talent acquisition partner, please note, Randstad is responsible for the engagement and contracting of this contingent role.

Lonza are the makers of the medicines of tomorrow. 

Join them. Be you. Apply now.