Scientist / PostDoc – Molecular Biology, Library Design & Construction (m/f/d)

We are looking for a motivated and creative Scientist or Postdoctoral Researcher to join our Molecular Biology & Library Design team. You will play a key role in the design, construction, and screening of DNA libraries and molecular toolsets. You will also contribute to innovative internal R&D and support customer-driven projects.

This role is an excellent opportunity to work on cutting-edge technologies at the interface of synthetic biology, molecular design, and bioinformatics. The position is lab-based, including data analysis, concept development, and direct project communication with clients.

Key Responsibilities

• Laboratory & Technical Work
  • Design and construct gene libraries using advanced cloning techniques such as Gibson Assembly, BSA Cloning, Gateway Cloning, and others
  • Apply bioinformatic tools to design gene constructs, optimize sequences, and analyze data
  • Perform molecular biology workflows including DNA/RNA manipulation, PCR, sequencing, and recombinant protein expression
  • Support both internal research and external client projects with high scientific and technical standards
• Client Interaction & Communication
  • Serve as a scientific point of contact during customer project execution
  • Present designs, timelines, and results to clients in a professional and clear manner
  • Contribute to proposals, reports, and presentations
• Conceptual & Strategic Development
  • Develop and implement innovative molecular biology workflows
  • Evaluate new technologies for molecular and protein engineering

• PhD in Molecular Biology, Biotechnology, Synthetic Biology, or a related field
• Proven hands-on experience in molecular cloning and construct design
• Familiarity with gene library design and generation
• Experience with bioinformatic tools for DNA/RNA sequence analysis and optimization
• Strong communication skills and ability to work collaboratively
• Fluent in English and German (written and spoken)

Additional Desired Qualifications

• Experience with the amber stop codon strategy and genetic code expansion
• Expertise in homologous recombination for gene knock-in/knock-out
• Expertise with E. coli cell-free expression systems
• Practical experience with CRISPR/Cas9 genome editing
• Hands-on knowledge of E. coli small- to mid-scale fermentation
• Familiarity with recombinant protein expression in microbial systems
• Experience with bioinformatic tools for protein design and optimization, including rational design or AI-driven approaches (e.g., structure prediction, stability engineering, in silico mutagenesis)

• A one-year employment contract with a clear potential for extension
• A dynamic, collaborative work environment in a high-growth biotech company
• Flat hierarchies, flexibility, and the chance to contribute your own ideas
• Meaningful projects with real-world application in medicine and biotech
• The opportunity to grow with the company and take on new responsibilities