Senior Scientist, Process Chemistry

Job Description

The Process Chemistry organization located at our Rahway, NJ site is seeking highly motivated and exceptional chemists who are looking for an opportunity to work in a fast-paced environment that provides a high degree of technical responsibility. A successful candidate will design and develop efficient, scalable manufacturing routes and clinical supply processes for multi-modality drug substances — including small molecules, macrocyclic peptides, and bioconjugates — supporting preclinical through clinical deliveries in our internal facilities and enabling successful tech transfer.

Responsibilities include researching and evaluating chemical routes, optimizing reaction conditions, ensuring reproducibility at scale, and conducting process demonstrations and tech transfers. In addition, the candidate will be expected to stay current with modern synthetic methodologies, drive continuous improvement and innovation within the group, and engage with the external scientific community through publications and presentations.

The ideal candidate must possess a Ph.D. in chemistry with experience in methodology/catalysis (including chemocatalysis, biocatalysis, and heterogeneous catalysis), total synthesis, physical organic chemistry, or flow chemistry, along with a proven track record of solving complex problems. The candidate must be highly self‑motivated, possess strong experimental skills, have excellent written and oral communication abilities, collaborate effectively on multidisciplinary teams, and be able to demonstrate adaptability in a fast‑paced, dynamic research environment.

We expect the chosen candidate to start the role in 2026.

• Act as an expert in the laboratory, executing on program and chemistry strategy.
• Develop innovative solutions to complex chemistry problems across a diverse portfolio of projects and modalities.
• Design and develop efficient processes for clinical campaigns, this involves extensive reaction design and optimization to ensure the scalability and reproducibility of our processes.

• PhD in Chemistry or Organic Chemistry completed no later than June 2026

• Must have conducted outstanding research that may be shared during the interview process.
• Ability to collaborate effectively with multidisciplinary teams and possess exceptional written and oral communication skills.
• Strong problem‑solving and troubleshooting abilities.
• High‑level leadership and interpersonal skills.

Accountability, Adaptability, Biocatalysis, Chemical Proteomics, Chemical Synthesis, Chemistry, Chemometrics, Chromatography, Heterogeneous Catalyst, Homogeneous Catalysis, Mass Spectrometry Based Proteomics, Organic Chemistry, Protein Chromatography, Synthetic Biology

We are proud to be an employer that embraces diversity and inclusion. The fastest way to breakthrough innovation is when people with diverse ideas, broad experiences, backgrounds, and skills come together in an inclusive environment. We encourage our colleagues to respectfully challenge one another’s thinking and approach problems collectively.

As an Equal Employment Opportunity Employer, we provide equal opportunities to all employees and applicants for employment and prohibit discrimination on the basis of race, color, age, religion, sex, sexual orientation, gender identity, national origin, protected veteran status, disability status, or other applicable legally protected characteristics. As a federal contractor, we comply with all affirmative action requirements for protected veterans and individuals with disabilities.

For more information about personal rights under the U.S. Equal Opportunity Employment laws, see EEOC Know Your Rights and EEOC GINA Supplement.

We offer a comprehensive package of benefits. Available benefits include medical, dental, vision healthcare and other insurance benefits (for employee and family), retirement benefits, including 401(k), paid holidays, vacation, and compassionate and sick days. More information about benefits is available at

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