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Research Associate, Cell Biology

Flagship Pioneering
Flagship Pioneering Salary
Cambridge, MA Full Time
POSTED ON 4/29/2026
AVAILABLE BEFORE 10/25/2026
Company Summary

Serif Biomedicines, Inc. is a privately held, early-stage biotechnology company developing a novel approach to gene therapy that can address currently untreatable diseases. Serif Biomedicines was founded by Flagship Pioneering, an innovation enterprise that conceives, creates, resources, and grows first-in-category life sciences companies.

Flagship Pioneering has created over 100 groundbreaking companies over the past twenty 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), Syros Pharmaceuticals (SYRS), Seres Therapeutics (NASDAQ:MCRB), Generate Biomedicines, Tessera Tx, Evelo Biosciences (EVLO), and Indigo Agriculture.

The Role

We are seeking a highly motivated Research Associate to join our Cell Biology team and play a key role in our efforts to profile nucleic acid function in cells. The candidate’s focus will be hands-on laboratory benchwork, will bring attention to detail and rigor to their work, and will be willing to learn. The individual will work alongside a cross-functional team in a fast-paced environment.

Key Responsibilities:

  • Culture and maintenance of cell lines and primary cells (both immune and non-immune cells)
  • Execute, optimize and analyze data from nucleic acid function assays on primary cells and cell lines in vitro
  • Share experimental methods and data effectively and in a timely manner in both oral and written formats and maintain rigorous electronic notebook records
  • Need to be comfortable working both as an independent contributor and as part of a collaborative, multidisciplinary team

Qualifications:

  • BS degree in Biology, Immunology, Virology, or related field
  • Experience handling mammalian cells is required
  • Experience with nucleic acid delivery methods (transfection, nucleofection, electroporation) is preferred
  • Familiarity with experimental design, hands-on execution, and data analysis of in vitro assays to evaluate nucleic acid function (flow cytometry, ELISA, Incucyte- and/or confocal-based microscopy, reporter assays) is preferred
  • Highly motivated to execute at the bench and bring robust organizational and problem-solving skills
  • Strong communication and interpersonal skills
  • Rigorous attention to detail and enthusiasm towards developing and learning new skills
  • Ability to adapt and execute in a fast-paced, multidisciplinary, and rapidly growing biotech environment

ABOUT FLAGSHIP PIONEERING

Flagship Pioneering is a scientific innovation engine that invents and builds companies that change the world. We bring together the greatest scientific minds with entrepreneurial company builders and assemble the capital to allow them to take courageous leaps in human health, sustainability, and beyond.

What sets Flagship apart is our ability to advance biotechnology by uniting life science innovation, company creation, and capital investment under one roof in a way that is largely without precedent. Our team of scientists, entrepreneurial leaders, and professional capital managers are each aligned around an institutionalized process that enables us to innovate and create breakthroughs for the benefit of people and planet.

Many of the companies Flagship has founded have addressed humanity’s most urgent challenges: vaccinating billions of people against COVID-19, curing intractable diseases, improving human health, preempting illness, and feeding the world by improving the resiliency and sustainability of agriculture.

Flagship has been recognized twice on FORTUNE’s “Change the World” list, an annual ranking of companies that have made a positive social and environmental impact through activities that are part of their core business strategies, and has been named four times to Fast Company’s annual list of the World’s Most Innovative Companies

We are an equal opportunity employer. All qualified applicants will be considered for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, protected veteran status, or any other characteristic protected by law.

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.

Privacy Notice for Applicants: When you apply for a role at Flagship Pioneering or one of its portfolio companies, we collect and use personal information you provide (such as your name, contact details, work history, and application materials) to evaluate your application, communicate with you, and comply with legal obligations. Your application data is processed through Greenhouse, our applicant tracking system, and may also be reviewed using AI-assisted screening tools. We do not sell your personal information. California residents have rights under the CCPA/CPRA including to know, delete, and opt out of the sharing of their personal information. If you are located in the EU or UK, we process your data under GDPR and you have rights to access, rectify, and erase your data. To exercise your rights or for questions, contact privacy@flagshippioneering.com. Full Applicant Privacy Notice: flagshippioneering.com/privacy-policy.

The salary range for this role is $65,000 - $93,500. Compensation for the role will depend on a number of factors, including a candidate’s qualifications, skills, competencies, and experience. Serif Biomedicines currently offers healthcare coverage, annual incentive program, retirement benefits and a broad range of other benefits. Compensation and benefits information is based on Serif Biomedicines's good faith estimate as of the date of publication and may be modified in the future.

Privacy Notice for Applicants: When you apply for a role at Flagship Pioneering or one of its portfolio companies, we collect and use personal information you provide (such as your name, contact details, work history, and application materials) to evaluate your application, communicate with you, and comply with legal obligations. Your application data is processed through Greenhouse, our applicant tracking system, and may also be reviewed using AI-assisted screening tools. We do not sell your personal information. California residents have rights under the CCPA/CPRA including to know, delete, and opt out of the sharing of their personal information. If you are located in the EU or UK, we process your data under GDPR and you have rights to access, rectify, and erase your data. To exercise your rights or for questions, contact privacy@flagshippioneering.com.

Salary : $65,000 - $93,500

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