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Lonza

Global life sciences contract manufacturer

Principal Scientist

Bioprocess & BiomanufacturingConfirmed live in the last 24 hours
Full-timeCambridge, UKNo salary listedIn-person

About the Job

Requirements

  • A Ph.D. in Molecular Biology, Cell Biology, Biotechnology, Biochemistry, Chemical or Biochemical Engineering, or a related discipline, together with 5 or more years of relevant biopharmaceutical industry experience; or a Master's degree with 10 or more years of relevant experience.
  • Substantial theoretical and practical expertise in molecular biology and mammalian vector and/or host cell engineering, including gene integration and/or gene knockout approaches.
  • Relevant experience with gene-editing technologies such as CRISPR-Cas and genotypic and phenotypic characterisation methods such as DNA/RNA sequencing, quantitative polymerase chain reaction, and flow cytometry.
  • Practical experience in mammalian cell culture, including transfection, cell maintenance, single-cell isolation, and cell line screening, with familiarity with automated screening and fed-batch culture.
  • A demonstrated track record of leading complex scientific projects or substantial workstreams relevant to mammalian host cell or expression system development.
  • Strong experimental design, statistical analysis, and data-interpretation skills, including Design of Experiments where appropriate.
  • Experience working across functions to transfer technologies and support their implementation or commercialisation.
  • Ability to explain complex findings, communicate project risks, and make clear recommendations in written and verbal communication.
  • Ability to work independently, manage competing priorities, and lead collaborative scientific work across teams.

Responsibilities

  • Lead, design, and execute host cell engineering projects, including gene integration and/or gene knockout, genotypic and phenotypic characterisation, and vector design.
  • Independently define and lead R&D projects, agreeing objectives, scope, deliverables, milestones, and resource requirements with relevant stakeholders.
  • Troubleshoot complex technical challenges and develop solutions that improve the performance and robustness of mammalian expression systems.
  • Identify opportunities to improve mammalian host cell and expression system technologies, and develop innovative solutions that address business needs.
  • Provide scientific leadership and mentorship to a team of scientists, setting clear expectations for experimental quality, documentation, and delivery.
  • Collaborate with R&D, Operations, and other relevant teams to support technology evaluation, transfer, and implementation.
  • Maintain accurate and timely experimental records, and author and review technical reports, protocols, and presentations.
  • Stay current with relevant scientific advances, emerging technologies, and the competitive and intellectual property landscape, using these insights to inform project direction.
  • Present scientific findings and project recommendations to internal stakeholders and at external scientific meetings.

Desired Qualifications

  • Experience in project leadership and line management would be an advantage.

About the Company

Lonza

Global life sciences contract manufacturer

Lonza is a global provider of development and manufacturing services for the pharmaceutical, biotechnology, and nutrition sectors. It supports clients from early development through to commercial production, offering integrated processes such as process development, GMP manufacturing, formulation, fill-finish, and quality assurance to bring medicines and nutrition products to market. Lonza’s model is built on end-to-end CDMO capabilities, enabling companies to move from concept to scalable, compliant production with reliable supply chains. What sets Lonza apart is its long history and global footprint, combining decades of experience across chemistry, biology, and nutrition with a broad, end-to-end service network that supports projects from discovery to commercialization. The company aims to be a trusted, long-term partner in life sciences by helping customers efficiently develop and manufacture their products at scale while maintaining strict regulatory and quality standards.

Company size
10,001+
Company stage
IPO
Headquarters
Basel, Switzerland
Founded
1897

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