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Senior Associate Scientist/Scientist, Medicinal Chemistry

Loxo Oncology at Lilly
San Diego, California
Senior Associate Scientist level: $67,850 to $99,563; Scientist level: $78,000 to $114,498
Closing date
May 23, 2022

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Field of specialization
Medicinal / Clinical
Work Function
Job Type
Full time
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About Loxo Oncology at Lilly: 

Loxo Oncology at Lilly conducts discovery research, clinical development, and regulatory affairs for oncology, with the goal of creating a pipeline of therapies that have the potential to make a meaningful difference for patients. Loxo Oncology at Lilly was created in December 2019, combining the Lilly Research Laboratories oncology organization and Loxo Oncology, which was acquired by Lilly in early 2019. The unit has team members in Boulder, CO, Indianapolis, IN, New York City, NY, South San Francisco, CA, San Diego, CA, Stamford, CT, and Madrid, Spain.

Position Summary:

Loxo Oncology at Lilly’s Drug Discovery team has an immediate opening for a Medicinal Chemist. The Loxo Oncology at Lilly team’s mission is to invent life-changing targeted therapies for cancer patient populations that are poorly treated by existing therapies. To that end, we have built a multi-disciplinary team of dedicated drug discovery scientists who are passionate about driving the science forward to create highly selective drugs for known oncogenic drivers. We are currently looking for medicinal chemists with a proven track records of success in synthetic organic chemistry. The ideal candidate will be passionate about using synthetic chemistry and data analysis skills to solve medicinal chemistry challenges and will excel at working closely with scientists across disciplines.  The position requires excellent people skills, a positive can-do attitude, and the ability to thrive in a highly interactive, fast-paced, team environment.

*Roles and Responsibilities of the Position:

  • Drive the team forward with new medicinal chemistry analogs that consistently move the project toward the next breakthrough drug candidate.
  • Optimize lead series for potency, selectivity, physiochemical properties, in vitro ADME, and PK by coupling multivariant SAR analysis with hypothesis-driven medicinal chemistry design principles.
  • Work closely with structural biology and computational chemistry colleagues to design novel compounds and hypotheses that address key drug optimization goals.
  • Reduce ideas to practice in the lab quickly by effectively employing a broad range of modern organic chemistry transformations, synthetic methods, purification and characterization techniques.
  • Synergize with the broader team by communicating results, sharing insights, making plans, and setting goals in an open, honest way.

Required Qualifications and Background:

  • B.S. with 5+ years, M.S. with 3+ years, or Ph.D. with 0-1 years in Chemistry with a focus on synthetic organic chemistry or experience in small molecule organic synthesis and/or drug discovery experience in biotechnology or pharmaceutical setting.
  • Proficiency in modern synthetic methodology and variable reaction scales.
  • Ability to design feasible synthetic routes to target molecules and choose appropriate reaction conditions.
  • Skilled user of synthetic chemistry instrumentation: HPLC, LC-MS, NMR, and purification systems.
  • Experience in lead compound optimization for potency, selectivity, ADME and PK is preferred but not required.
  • Experience in using common synthetic chemistry software: electronic notebook, ChemDraw, Excel, literature search engines.
  • An excellent team player with ability to communicate synergistically with a multidisciplinary team. Highly organized with excellent analytical, documentation, time management, and multi-tasking skills.

Loxo Oncology, Inc. (Loxo) currently anticipates that the base salary for the Associate Scientist level could range from between $59,000 to $86,577 and that the base salary for the Scientist level could range from between $78,000 to $114,498 will depend, in part, on the successful candidate’s qualifications for the role, including education and experience. This position will also be eligible for a company bonus (depending, in part, on company and individual performance).  In addition, Loxo provides a comprehensive benefit program to eligible employees, including vacation, medical, dental and vision benefits; participation in a 401(k) plan; life and accidental death and disability coverage; parental leave benefits and employee discounts for certain items.  The compensation described above is subject to change and could be higher or lower than the range described above. Further, Loxo reserves the right to amend, modify, or terminate its compensation and benefit programs in its sole discretion.

Physical Demands:

The physical demands of this position are consistent with working in a laboratory/ bench environment. Some light lifting and maneuvering may be required.

The physical demands here are representative of those that must be met by an employee to successfully perform the essential functions of this job.


Work Environment:

This position’s work environment is based in a laboratory/ bench environment.

The work environment characteristics described here are representative of those an employee encounters while performing the essential functions of this job.


*To perform this job successfully, an individual must be able to perform each role and responsibility satisfactorily. The requirements listed above are representative of the knowledge, skill, and/or ability required. Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions.


Loxo Oncology, Inc. is an EEO/Affirmative Action Employer and does not discriminate on the basis of age, race, color, religion, gender, sexual orientation, gender identity, gender expression, national origin, protected veteran status, disability or any other legally protected status.


As a condition of employment with Loxo, a wholly owned subsidiary of Eli Lilly and Company, in the United States and Puerto Rico, you must be fully COVID-19 vaccinated and provide proof of vaccination satisfactory to the company. If you would like to request an accommodation for medical or religious reasons, you may do so at 

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