Associate Director, CMC Synthetic Chemistry – Molecule

About Beeline Medicines

Beeline Medicines is a clinical‑stage biotechnology company focused on developing and delivering category‑leading precision therapies to transform the lives of people living with autoimmune and inflammatory diseases. With a portfolio of potential best‑in‑class and first‑in‑disease therapeutic candidates that directly target key pathways governing dysregulated immunological and inflammatory responses, the company is developing medicines that have the opportunity to provide durable, life‑changing impact.

Led by an established executive team and backed by world‑class life science investors, each day Beeline Medicines is determined to bring scientific rigor and operational excellence to get to what matters for patients – realizing a world where people with immune‑mediated diseases can live life fully.

The Associate Director, CMC Synthetic Chemistry – Small Molecule is a senior scientific individual contributor responsible for the hands‑on development, optimization, and scale‑up of synthetic routes for small molecule drug candidates. Reporting to the Executive Director, CMC Synthetic Chemistry, this individual plays a central role in advancing API process chemistry from early development through clinical manufacturing, ensuring that synthetic routes are robust, scalable, safe, and regulatory‑ready.

This role carries no direct reports but serves as the primary technical owner for assigned programs and is the key scientific interface with CDMO process chemistry partners. It requires deep expertise in organic and process chemistry, direct experience with CDMO technical management, and the ability to operate with scientific independence and collaborative agility in a pre‑commercial biotech environment.

Hybrid – This position follows a hybrid work schedule, requiring a minimum of two (2) days on‑site per week – currently designated as Tuesday and Wednesday
. Additional on‑site days may be required based on business needs, team priorities, or leadership direction.

• Lead the design, evaluation, and optimization of synthetic routes for small molecule APIs, applying mechanistic understanding and process chemistry principles to develop robust, scalable, and cost‑efficient manufacturing processes.
• Execute and oversee process development campaigns including reaction optimization, solvent selection, intermediate characterization, and process safety assessments from lab scale through CDMO kilo‑lab and pilot plant operations.
• Serve as the primary technical interface with CDMO process chemistry teams, providing day‑to‑day scientific oversight of API synthesis campaigns, reviewing batch records, and driving rapid resolution of process deviations and out‑of‑specification events.
• Author and contribute to drug substance sections of regulatory filings (IND, IMPD, NDA) including synthetic route descriptions, process development summaries, control strategy justifications, and raw material specifications.
• Design and execute Design of Experiments (DoE) studies to define process parameters, establish proven acceptable ranges, and support the development of a robust process control strategy in alignment with QbD principles.
• Conduct and document process hazard evaluations, reaction safety assessments, and scale‑up risk analyses in collaboration with process safety and engineering functions at CDMO partners.
• Oversee the sourcing, qualification, and quality assessment of starting materials, reagents, and key intermediates, partnering with Quality and Regulatory Affairs on supplier qualification and control strategy.
• Contribute to intellectual property strategy for synthetic routes and manufacturing processes by working closely with IP/Legal to identify patentable innovations.
• Operate as a self‑directed scientific contributor – managing API route scouting, process development and optimization studies and providing technical oversight of external manufacturing campaigns independently while coordinating effectively with cross‑functional and external partners to advance program deliverables on schedule.
• Perform other duties and…