About the job
About Flagship Pioneering and FL122
FL122, a new venture launched by Flagship Pioneering in Cambridge, MA, is building genomic technologies to advance human health and assisted reproduction. Flagship Pioneering has founded more than 100 life sciences companies over the past 20 years, including Moderna, Generate Biomedicines, and Tessera Therapeutics. The team is focused on solutions for critical challenges in human health and sustainability.
Role Summary: Scientist in Reproductive and Molecular Biology
This Scientist position will help lay the experimental groundwork for FL122’s scientific platform. The role centers on developing and standardizing laboratory workflows involving human gamete handling and molecular characterization. Working as part of the early scientific team, this person will collaborate with senior scientists and company leadership to define technical standards and execute experimental strategies.
What You Will Do
- Develop and refine laboratory workflows for human gamete handling and molecular analysis
- Work directly with sensitive human samples in an IVF or embryology lab setting
- Apply molecular biology techniques to support experimental objectives
- Collaborate with team members and leadership to set technical standards
- Contribute to the execution and planning of experimental strategies
What We’re Looking For
- Strong background in reproductive biology and molecular biology
- Hands-on experience in IVF or embryology laboratory environments
- Proficiency with molecular biology techniques
- Attention to detail and comfort working with sensitive human samples
- Adaptability and willingness to work across disciplines
- Collaborative mindset suitable for an early-stage, startup setting

