Job description

Sr Scientist II, Formulation & Clinical Mfg.


Every Exelixis employee is united in an ambitious cause: to launch innovative medicines that give patients, and their families hope for the future. In this pursuit, we know our employees are our most valuable asset. After operating in the challenging biotech sector for 25 years, we have a proven track record of resiliency in the face of adversity. The success of our lead product has provided a solid commercial foundation allowing us to reinvigorate our research efforts and grow our team in areas such as Drug Discovery, Clinical Development and Commercial.

As we expand our global partnerships and further reinvest in R&D to help us discover the next breakthrough for difficult-to-treat cancers, we’re seeking to add talented, dedicated employees to power our mission.

Cancer is our cause. Make it yours, too.

SUMMARY:  The Senior Scientist II works in a fast-paced environment with the Formulation development team, part of PSC department to drive a science-based approach in formulation development and strategy for small molecule projects from First in Human (FIH) formulations to commercial formulation development. The Sr. Scientist II will actively engage with key stakeholders from Process Chemistry, Quality, Clinical Supplies, and Analytical teams to support program timelines and goals.


  • Integrates physicochemical properties, solid-state properties and preclinical formulation to drive formulation development for FIH studies, CTM manufacturing, to late-phase clinical formulations including commercial formulation development.
  • Works closely with colleagues in process chemistry and analytical for developing appropriate formulations.
  • Works closely with colleagues in clinical supply chain, quality, logistics and CMO’s to plan, execute and deliver CTM batches.
  • Provides clear and concise communications and instructions to partner CMOs for development and manufacturing of CTM supplies.
  • Manage CMOs effectively to the highest performance standards, monitored through meaningful KPI’s and exhaustive analytics 
  • Collaborates with formulation team to develop and manufacture oral formulations (tablets, capsules, solns./susp.) internally for transfer to CMOs.
  • Expands formulation science capabilities via innovation and/or new emerging technologies. Keeps current with the latest literature approaches in Formulation Sciences.
  • Prepares and organizes data for presentation using analysis and visualization software, present data and reports on project status at individual, group, and departmental research meetings.
  • Maintain laboratory notebook in a complete, consistent, and concise manner in accordance with company intellectual property policies and practices.
  • Adheres to good health and safety practices and compliance with applicable EH&S rules and participate in mandatory safety training programs.
  • Travels to CMOs and monitors CTM manufacturing as expected.


  • Not currently expected.



  • Ph.D. in Pharmaceutics, Pharmaceutical Sciences, Chemical Engineering or other relevant field and a minimum of 2 years of relevant experience in the pharmaceutical industry; or,
  • Equivalent combination of education and experience.


  • Extensive experience with formulation development of solid oral formulations (tablets, capsules, others) from FIH to CTM supplies manufacturing and commercial supplies.
  • Hands-on experience with developing suitable formulation for various routes of administration primarily solid oral formulations.
  • Experience in QbD-based formulation development including statistical design, utilization of scale-independent process parameters, and evaluation of experimental results in designing bioavailable, robust, scale-able formulations.
  • Experience working in-house and managing work at CMOs/CDMOs is preferred.


  • Knowledge around physiochemical properties of small molecules and experience integrating properties in formulation development.
  • Proficiency with software packages such as JMP (or equivalent).
  • Extensive In-depth understanding of how the individual experiments fit within a larger research program to meet organizational goals.
  • Strong understanding and application of scientific principles, theories, and concepts in field of specialty and other related disciplines.
  • Excellent collaborative, verbal and written communication skills, problem solving, self-motivation, critical thinking, and organization skills.
  • Detail oriented, can multi-task and work on multiple projects concurrently. Ability to work in a fast-paced organization.
  • Demonstration of independent thought/creativity in science and drug research. Experience in applying current approaches and technologies to strengthen and improve formulation development capabilities.
  • Excellent collaborative verbal and written communication skills.


  • Works on problems of diverse scope where analysis and review of data requires evaluation of identifiable factors.
  • Exercises independent judgment in selecting methods, techniques, and evaluation criteria for obtaining results.
  • Networks with key contacts inside and outside own area of expertise.


  • Environment: Primarily working indoors in a laboratory and office environment.
  • This is a lab-based role, and the candidate is expected to be on-site based on company policies.
  • Travel required – 20% of the time. 


If you like wild growth and working with happy, enthusiastic over-achievers, you'll enjoy your career with us!

Our compensation reflects the cost of labor across several U.S. geographic markets, and we pay differently based on those defined markets. The base pay range for this position is $125,000 - $176,500 annually. The base pay range may take into account the candidate’s geographic region, which will adjust the pay depending on the specific work location. The base pay offered will take into account the candidate’s geographic region, job-related knowledge, skills, experience and internal equity, among other factors.

In addition to the base salary, as part of our Total Rewards program, Exelixis offers comprehensive employee benefits package, including a 401k plan with generous company contributions, group medical, dental and vision coverage, life and disability insurance, and flexible spending accounts. Employees are also eligible for a discretionary annual bonus program, or if field sales staff, a sales-based incentive plan. Exelixis also offers employees the opportunity to purchase company stock, and receive long-term incentives, 15 accrued vacation days in their first year, 17 paid holidays including a company-wide winter shutdown in December, and up to 10 sick days throughout the calendar year.

The preceding job description has been designed to indicate the general nature and level of work performed by employees within this classification.  It is not designed to contain or be interpreted as a comprehensive inventory of all duties, responsibilities and qualifications required of employees assigned to the job.

We are an Equal Opportunity Employer and do not discriminate against any employee or applicant for employment because of race, color, sex, age, national origin, religion, sexual orientation, gender identity, status as a veteran, and basis of disability or any other federal, state or local protected class.

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