Company Summary: 

Ring Therapeutics Inc. is a privately held, early-stage biotechnology company pioneering a completely novel form of gene therapy by exploiting a family of naturally occurring commensal viruses to create the first re-doseable and targetable DNA medicines. This approach enables a powerful new class of tropic, persistent, non-integrating vectors that overcome the immunogenicity, and limited tropism of existing gene therapy vectors. Ring Therapeutics is leveraging this versatile technology to develop a broad pipeline of novel, targeted medicines for disease with high unmet medical need.

Ring Therapeutics was founded by Flagship Pioneering, focused on launching breakthrough companies based on internally conceived innovations and insights. Flagship Pioneering has created over 40 groundbreaking companies over the past fifteen years, all of which are pioneering novel and proprietary biological, industrial, and engineering approaches to solve major needs in human health and sustainability. These companies include Moderna (MRNA), Seres Therapeutics (MCRB), Syros Pharmaceuticals (SYRS), Rubius Therapeutics (RUBY), Axcella Health, Evelo Biosciences (EVLO), and Indigo Agriculture.

Position Summary:

Ring Therapeutics is seeking a Research Associate to join the Platform and Biology team and support our viral protein and particle purification and characterization efforts. This experienced BS- or MS-level researcher will be responsible for performing a variety of laboratory procedures related to virology and protein biochemistry. This individual will join a dynamic, rapidly growing, and highly collaborative team that combines significant biologic drug discovery experience with pioneering discoveries driving a novel biological platform. The ideal candidate will have experience transfecting mammalian cells, purifying recombinant proteins using chromatography techniques and protein biochemistry assays including SDS-PAGE gels, western blots and ELISAs. We are searching for enthusiastic and highly motivated individuals who are comfortable multitasking and working both with a team and independently on various aspects within the Structural Biology team.

Key Responsibilities:

  • Expression and purification of affinity-tagged recombinant proteins from E. coli.
  • Perform protein purification procedures using standard chromatography techniques and equipment (AKTA FPLCs).
  • Perform analytical procedures such as SDS-PAGE and western blotting.
  • Participate on multi-disciplinary teams, clearly documenting and communicating results (i.e., laboratory notebooks, presentations, writing reports).


  • BS, MS or equivalent in a science program (e.g. protein biochemistry, virology, etc.)
  • 3-5 years of professional experience in a research laboratory setting. Industry experience preferred.
  • Familiarity with recombinant protein purification, preferably chromatography-based.
  • Motivated, curious, and comfortable working with highly technical projects and personnel.
  • Comfortable delivering against challenging commitments.
  • Excellent communication and presentation skills, capable of conveying technical information in a clear and thorough manner.


Flagship Pioneering and our ecosystem companies are committed to equal employment opportunity regardless of race, color, ancestry, religion, sex, national origin, sexual orientation, age, citizenship, marital status, disability, gender identity or Veteran status.
Recruitment & Staffing Agencies: Flagship Pioneering and its affiliated Flagship Lab companies (collectively, “FSP”) do not accept unsolicited resumes from any source other than candidates. The submission of unsolicited resumes by recruitment or staffing agencies to FSP or its employees is strictly prohibited unless contacted directly by Flagship Pioneering’s internal Talent Acquisition team. Any resume submitted by an agency in the absence of a signed agreement will automatically become the property of FSP, and FSP will not owe any referral or other fees with respect thereto.

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