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Principal Scientist, Medicinal Chemistry

Disability Solutions

Company : Disability Solutions

Location : San Diego, CA, 92189

Posted Date : 5 November 2025

Job Type : Other

Category : Scientific Research & Development

Occupation : Scientist

Job Details

At Johnson & Johnson, we believe health is everything. Our strength in healthcare innovation empowers us to build a world where complex diseases are prevented, treated, and cured, where treatments are smarter and less invasive, and solutions are personal. Through our expertise in Innovative Medicine and MedTech, we are uniquely positioned to innovate across the full spectrum of healthcare solutions today to deliver the breakthroughs of tomorrow, and profoundly impact health for humanity. Learn more at https://www.jnj.com

Job Function:
Discovery & Pre-Clinical/Clinical Development
Job Sub Function:
Chemical Research
Job Category:
Scientific/Technology
All Job Posting Locations:
San Diego, California, United States of America
Job Description:

About Innovative Medicine

Our expertise in Innovative Medicine is informed and inspired by patients, whose insights fuel our science-based advancements. Visionaries like you work on teams that save lives by developing the medicines of tomorrow.

Join us in developing treatments, finding cures, and pioneering the path from lab to life while championing patients every step of the way.

Learn more at https://www.jnj.com/innovative-medicine

We are searching for the best talent for a Principal Scientist, Medicinal Chemistry to be located in San Diego, CA.

Purpose:

We are seeking experienced medicinal chemists with outstanding organic synthesis expertise to advance small molecule drug discovery programs toward the clinic, with a focus on generating therapeutics employing targeted degradation strategies. This individual will be a key member of a dynamic and collaborative cross-functional team developing a targeted protein degrader and ubiquitin ligase platform across J&J. In this laboratory-based position, the successful candidate will partner with both internal and external medicinal chemistry teams to generate innovative solutions to synthetic and medicinal chemistry challenges within the context of both traditional small molecule and targeted protein degrader-based drug discovery projects. She/he will maintain close interactions with computer assisted design scientists, biologists, pharmacologists, and pharmaceutical development scientists. This individual must also excel in communication and have strong interpersonal skills necessary to effectively influence in a collaborative multidisciplinary environment, and ideally have some leadership experience.

You will be responsible for:
  • Develop and execute clear synthetic strategies towards complex molecules using state-of-the-art synthetic methodologies.
  • Extensive experience in design and execution of multi-step organic synthesis.
  • Maintain a high level of productivity in the laboratory setting.
  • Independently design and synthesize drug-like molecules utilizing medicinal chemistry knowledge, SAR analysis, structural modeling, molecular design tools with an understanding of pharmacokinetics, pharmacodynamics, and optimal physicochemical properties.
  • Collaboratively support the advancement of compounds through in vitro and in vivo studies to identify development candidates.
  • Collaborate with structure-based design and in silico design groups to rationally design molecules.
  • Generate novel, testable hypotheses to enable clear decision making.
  • Manage external synthesis support efforts in collaboration with External Discovery Chemistry and Discovery Process Research colleagues.
  • Contribute to defining scientific strategies and goals within a project team setting.
  • Present data and reports on project status at individual, group, departmental and organizational meetings.
  • Draft, execute and serve as lead author on research published in peer reviewed journals and present work at scientific conferences.
  • Collaboratively engage with the external scientific community.
Qualifications:
  • Ph.D. in synthetic organic chemistry and optionally 1-2 years post-doctoral experience with 4+ years of medicinal chemistry experience, or equivalent experience for non-Ph.D.'s performing progressively advanced duties beyond the Scientist level is required.
  • Demonstrate a strong track record of achievement in synthesis of complex molecules with knowledge of modern synthetic and analytical techniques is required.
  • Proven track record of scientific contributions including peer reviewed publications, patents and presentations is preferred.
  • Practical knowledge of modern drug design principles and the application of molecular design tools towards multi-parameter medicinal chemistry optimization campaigns is preferred.
  • Demonstrate independent thinking and the ability to effectively collaborate in a highly matrixed environment.
  • Experience with targeted protein degrader based medicinal chemistry programs is preferred.
  • Excellent oral and written communication skills, including preparation of presentations.
  • Experience leading a chemistry team or supervising the work of a junior scientist(s) is desirable.
  • Up to 10% travel is required.
Johnson & Johnson is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, age, national origin, disability, protected veteran status or other characteristics protected by federal, state or local law. We actively seek qualified candidates who are protected veterans and individuals with disabilities as defined under VEVRAA and Section 503 of the Rehabilitation Act.
Johnson and Johnson is committed to providing an interview process that is inclusive of our applicants' needs. If you are an individual with a disability and would like to request an accommodation, please email the Employee Health Support Center (ra-employeehealthsup@its.jnj.com) or contact AskGS to be directed to your accommodation resource.

The anticipated base pay range for this position is :
$115,000 to $197,800
Additional Description for Pay Transparency:
The Company maintains highly competitive, performance-based compensation programs. Under current guidelines, this position is eligible for an annual performance bonus in accordance with the terms of the applicable plan. The annual performance bonus is a cash bonus intended to provide an incentive to achieve annual targeted results by rewarding for individual and the corporation's performance over a calendar/performance year. Bonuses are awarded at the Company's discretion on an individual basis. Employees and/or eligible dependents may be eligible to participate in the following Company sponsored employee benefit programs: medical, dental, vision, life insurance, short- and long-term disability, business accident insurance, and group legal insurance. • Employees may be eligible to participate in the Company's consolidated retirement plan (pension) and savings plan (401(k)). • Employees are eligible for the following time off benefits: o Vacation - up to 120 hours per calendar year o Sick time - up to 40 hours per calendar year; for employees who reside in the State of Washington - up to 56 hours per calendar year o Holiday pay, including Floating Holidays - up to 13 days per calendar year o Work, Personal and Family Time - up to 40 hours per calendar year Additional information can be found through the link below. https://www.careers.jnj.com/employee-benefits The compensation and benefits information set forth in this posting applies to candidates hired in the United States. Candidates hired outside the United States will be eligible for compensation and benefits in accordance with their local market.

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