Senior Scientist, Analytical Chemistry

Osmo is seeking a Senior Scientist to drive the strategy and execution of GC/MS-based characterization programs that power our fragrance discovery engine and machine learning infrastructure. This is a high‑autonomy role for an experienced analytical chemist who thrives at the intersection of rigorous small‑molecule analytical chemistry and machine learning.

• Own the end‑to‑end analytical strategy for specific GC‑MS‑based programs, including method design, validation frameworks, and data quality standards for both targeted and untargeted analyses
• Define and evolve sample preparation methodologies for headspace, liquid‑phase, and solid‑phase extraction of fragrance compounds from complex matrices and consumer products
• Maintain and improve Osmo’s high‑throughput analytical pipeline, ensuring data integrity, reproducibility, and compatibility with downstream machine learning workflows
• Partner deeply with the Platform and ML teams to shape how analytical data is structured, stored, and leveraged computationally, acting as the chemistry‑side technical owner of the data interface
• Determine methods and procedures for new analytical assignments independently, coordinating execution across team members and collaborating functions as needed
• Enforce and hold teammates and colleagues to high standards of scientific rigor and data quality
• Mentor and technically develop junior and mid‑level scientists, establishing best practices, reviewing work for scientific integrity, and elevating the team’s overall analytical capability
• Write, edit, and audit analytical and experimental protocols
• Serve as an internal expert resource and external‑facing collaborator for analytical chemistry questions across Osmo’s scientific and commercial programs

• PhD in Analytical Chemistry, Flavor/Fragrance Chemistry, Atmospheric Chemistry, Cosmetic Chemistry, or a related field with 5+ years of post‑degree experience, or equivalent combination of advanced degree and demonstrated technical leadership
• Deep, hands‑on expertise in GC‑MS method development and validation across both targeted quantitation and untargeted profiling
• Familiarity with Mass Hunter Qual/Quant or comparable analysis platforms
• Advanced proficiency in sample preparation techniques for complex matrices, including LLE, SPE, headspace, and SPME, with the ability to design novel approaches for non‑standard substrates
• Demonstrated experience operating with high autonomy in defining analytical scope, setting timelines, and coordinating others to execute without close supervision
• Proven ability to set technical direction for a team or program, including authoring or redesigning SOPs, establishing QC frameworks, or leading analytical platform decisions
• Excellent cross‑functional communication skills, with a track record of translating complex analytical requirements into actionable plans for non‑chemistry stakeholders (e.g., ML engineers, product teams)

• Direct experience in the flavor and/or fragrance industry, particularly with odor‑active compound analysis or consumer product characterization
• Proficiency in Python or other scripting languages for analytical data processing, pipeline automation, or integration with computational workflows
• Experience designing or contributing to analytical data infrastructure that feeds ML models or large‑scale compound databases
• Familiarity with chemometrics, multivariate data analysis, or other data‑science‑adjacent analytical approaches
• Experience with GC‑Olfactometry and Gerstel robotic systems