Open for applications

Molecular Biology Intern

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About the vacancy

R&D
Molecular Biology
Internship Bachelor’s Degree (HBO, WO) Internship Full time

About Your Next Job

We are looking for a motivated and hands-on Master’s student with a strong interest in mammalian cell culture and molecular biology. You understand the fundamentals of cell line engineering, and now we want you to apply that knowledge to develop next-generation production systems using transposon-based technologies.


About Your Next Colleagues

You will join ProteoNic in Leiden and become part of our R&D team, contributing to cutting-edge approaches for stable cell line generation and controlled gene expression.


About Your Tasks and Responsibilities

Cell Line Generation Using Transposon Technology: Design and generate stable mammalian cell lines using transposon-based systems, focusing on efficient genomic integration and expression stability.

Inducible System Development & Testing: Develop and evaluate inducible expression systems to control gene expression levels, optimizing for performance and reproducibility.

Molecular Cloning & Vector Design: Assist in designing and constructing plasmids and transposon vectors, including cloning strategies for gene-of-interest integration.

Virus Production Support: Contribute to viral vector production workflows (e.g., lentiviral systems) to support comparative delivery strategies.

Data Analysis & Troubleshooting: Analyze experimental data and troubleshoot issues related to transfection efficiency, expression variability, and cell viability.


About Your Skills and Experience

Education: Currently pursuing a Master’s degree in Biotechnology, Molecular Biology, Cell Biology, or a closely related field.

The Science: You have hands-on experience with mammalian cell culture, molecular cloning, and ideally some exposure to viral vector production or gene delivery systems.

The Skills: You are detail-oriented, proactive, and comfortable working independently in the lab. You can interpret experimental data and adapt protocols when needed.

Language: Fluent in English.

Location & Visa: You are currently based in the Netherlands and have the legal right to intern here.


About Your Benefits

What We Offer

  • A hands-on Master’s internship (typically 6- 8months) in an innovative biotech environment.
  • Direct mentorship from experienced scientists in cell line development and gene expression technologies.
  • Exposure to industry-relevant platforms in biologics production and cell engineering.

You are eligible to work in EU

We only accept applicants who are eligible to work in the EU


Contact person

Phani Varnava

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ProteoNic is a biotechnology company active in development of premium DNA vector technology for high level production of pharmaceutical proteins and viral vectors for application in cell and gene therapy. The company’s commercially validated technology is licensed to a wide range of companies worldwide.


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