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Research Associate II/Sr. Research Associate, Purification and Analytical Chemistry

Circle Pharma

Circle Pharma

South San Francisco, CA, USA
Posted on Thursday, May 23, 2024
Circle Pharma is a dynamic biotech company advancing the discovery and development of intrinsically cell-permeable macrocycles that can be delivered by multiple routes, including oral administration. Circle Pharma’s platform combines structure-based rational drug design and advanced synthetic chemistry to develop first-in-class macrocycle therapeutics for challenging targets to address unmet clinical needs. Circle Pharma is focusing its development efforts on cyclins, which are master regulators of the machinery that controls progression of cells through the cell cycle and are key drivers in many cancers.
To help drive our growth, we seek candidates who desire to make key contributions. For more information about Circle Pharma, please see our website, www.circlepharma.com
We are looking to add a Research Associate or Senior Research Associate to our growing team. Reporting to the Senior Analytical Chemist, this individual will be responsible for the purification and analysis of target molecules including macrocyclic peptides and small molecules, as well as routine maintenance of analytical instruments and liquid handling devices. Our ideal candidate will have purification experience in macrocyclic peptides/small molecules, as well as great experience on liquid chromatography, mass spectrometry, and automated liquid handling devices. Our ideal candidate will also have a proven track-record of productivity and project ownership, coupled with a solid understanding of small molecule/peptide purification and analysis techniques.

What You'll Do:

  • Conduct preparative-scale purification and analytical characterization for macrocyclic peptides/small molecules using preparative LC/MS, UPLC/MS and other instruments.
  • Conduct large scale sample preparation on automated liquid handling devices.
  • Maintain accurate and up-to-date documentation of lab activities; analyze results, generate reports, and communicate results to the Chemistry team.
  • Draft and revise protocols, methods, and Standard Operating Procedures (SOPs), with guidance.
  • Order chemicals and consumables for purification and analytical use, conduct lab instrumentation priming/routine maintenance/troubleshooting, coordinate internal/external service for lab instrumentation.
  • Be an enthusiastic contributor to the efforts of our Analytical/Purification Team, and aid with activities such as synthesis, compound inventory and dispensing efforts as needed.

About You:

  • BA degree in Analytical Chemistry, Chemistry, Biochemistry or a related scientific discipline.
  • 3+ years industry analytical chemistry experience required. More years of experience would qualify you as a Sr. RA.
  • Experience in operating and maintaining LC/MS, preparative LC/MS, method development and data analysis required.
  • Experience with Waters ACQUITY UPLC, Waters QDa Mass Detector, Waters LC Prep AutoPurification System, Waters Empower, MassLynx preferred.
  • Experience with molecule structure identification by using Mass Spectrometry is a plus.
  • Experience in organic synthesis and solid-phase peptide chemistry would be a strong plus.
  • Organized and detail-oriented.
  • Adept at following written protocols and verbal instructions.
  • Excellent interpersonal skills and ability to work effectively within a team setting.
  • Excellent written and verbal communication skills.
  • Proficiency with Microsoft Office.
  • Strong interest in understanding the drug discovery process.
  • Must be able and willing to work at lab bench/fume hood for the majority of the workday.
Circle Pharma recognizes that the success of our endeavors depends on the success of every team member. Your well-being is our top priority, and we are proud to offer a comprehensive total rewards package. Our benefits include but are not limited to medical, dental, and vision care. We also provide a 401(k) plan with a generous company contribution, and all of our offers contain a stock option component. We provide company-paid life insurance, short-term and long-term disability. Additionally, we provide many company-paid holidays, including a winter break at the close of the calendar year.
Circle Pharma is an equal opportunity employer and committed to a diverse workplace. All applicants will be considered equally without regard to race, color, ethnicity, veteran status, religion, national origin, marital status, political affiliation, age, sex, sexual orientation, gender identity, disability status, membership in an organization or any other non-merit factors