Scientist, Large Libraries

Responsibilities

• Method Development & Execution
• Develop and optimize cutting edge workflows for high-throughput protein library screening and characterization, exceeding 10^6 data points
• Build and optimize in vitro and cell-based assay pipelines across multiple display and screening modalities
• Design, build, and execute experimental frameworks for library construction, screening, and data generation at scale
• Establish robust and repeatable assays with the statistical rigor required for ML model training, evaluation and optimization
• Technical Leadership
• Drive and lead projects from experimental design through data delivery
• Identify opportunities to improve throughput, data quality, repeatability, and workflow efficiency.
• Collaborate with a cross-functional team to troubleshoot complex technical challenges and iterate on solutions.
• Cross-functional Collaboration
• Partner with the ML team to define data requirements and integrate experimental outputs into the ML pipeline.
• Communicate results, insights, and technical challenges effectively across disciplines.
• Contribute to shaping the scientific direction of the Large Libraries team and meaningfully contribute to the advancement of the Cradle platform.
• Your background
• Missing one or two points from the list below? No worries, if you're excited about this role and meet most of these criteria, we definitely want to hear from you. In the application form you will have a chance to spark our curiosity by telling us something groundbreaking you have worked on.
• PhD in biochemistry, molecular biology, biophysics, synthetic biology, bioengineering, or a related field.
• Demonstrated creativity in method development: you have invented or substantially adapted workflows, not just executed established ones.
• Excitement to learn, contribute, and drive innovation in an early stage startup environment. Be comfortable with ambiguity and a fast paced environment.
• Strong verbal and written communication skills in English. Proactively sharing results, successes and challenges in a cross-functional environment.
• Ability to run multiple projects simultaneously while ensuring that process steps are documented, and physical/digital data are organized.

Requirements

• Experience with one or more of the following would be an advantage:
• Large-scale DNA library construction methodologies (>10^6 variants)
• Display platforms (yeast, phage, mRNA, ribosome display, or mammalian display)
• Flow cytometry and FACS
• Next-generation sequencing library preparation, QC, and bioinformatic analysis tools (Illumina, Nanopore, PacBio).
• Experience with statistically rigorous experimental design and data quality assessment
• High-throughput data analysis or familiarity with scripting languages (Python, R)
• Classical high-throughput laboratory automation (robotic liquid handlers, plate readers, colony pickers)
• Learning more about the BioEngineering team
• We're quite open about what we work on in our BioEngineering team. If you'd like to learn a bit more before applying, check out blog posts from our team ( link 1 , link 2 ) or watch our webinar

Benefits

Additional Information

This is Cradle Proteins are the molecular machines of life, used for many therapeutic, diagnostic, chemical, agricultural and food applications. Designing and optimizing proteins takes a lot of expert knowledge and manual effort, through the use of custom computational and biological tools. Machine learning is revolutionizing this space, by enabling high-fidelity protein models. At Cradle, we offer a software platform for AI-guided discovery and optimization of proteins, so that biologists can design proteins faster and at scale. We are already used by clients across biopharma, biotech, agri-tech, food-tech, and academia. We're an experienced team of around 90 people. We've built many successful products before and have enough funding for multiple years of runway. We are distributed across two main locations, Zurich and Amsterdam, and are focused on building the best possible team culture. We offer our employees a very competitive salary, a generous equity stake in the company and a wide range of benefits and career progression opportunities.

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