Co - Founder & CTO/CMO @ Celyra

We are seeking a Co-founder and CTO/CMO to architect, build, and scale the operational backbone of the company from lab setup to GMP-aligned production. Keep in mind that the project is currently at a very early stage and still requires early bioprocess development.

Responsibilities

• Utilizing problem-solving skills to address complex challenges and drive continuous improvement
• Designing and implementing scalable manufacturing processes for pluripotent stem cell-derived exosomes.
• Leading development of upstream (suspension culture, expansion) and downstream (isolation, purification, characterization) workflows.
• Building a GMP-aligned bioprocess infrastructure and overseeing technology transfer to pilot and commercial-scale production.
• Overseeing product safety and stability testing frameworks.
• Identifying and managing suppliers for raw materials, media, reagents, and consumables.
• Recruiting and managing technical and operations team.

The ideal candidate should have several of the following:

Qualifications

• PhD or MS in Bioengineering, Bioprocess Engineering, or related field.
• Experience as a founder or early employee in a life sciences startup, ideally in the field of innovative dermo-cosmetics.
• Experience in biologics manufacturing, cell therapy, exosomes, or related advanced bioprocessing.
• Experience working in or with cosmetic, biotech, or advanced ingredient companies.
• Direct experience working with pluripotent stem cells (iPSCs or ESCs) is strongly preferred.
• Strong knowledge of extracellular vesicle isolation and characterization methods.
• Proven experience building or scaling GMP or GMP-like manufacturing operations.
• Familiarity with QC/QA systems, batch records, and regulatory documentation.
• Demonstrated cost modeling and COGS optimization experience.
• Familiarity with contract manufacturing (CDMOs) and supplier ecosystems.
• Existing network in dermo-cosmetics or regenerative aesthetics is a plus.
• Ownership mindset, resilience and integrity.

Location and Language

• Based in France or able to relocate
• Professional proficiency in English

How to Apply

If you are excited about joining, please send an introductory email along with your relevant experience to