Flagship Pioneering
Direct Greenhouse career site

Senior Administrative Assistant

Location
Cambridge, MA USA
Listed
Today

Position Summary

We are seeking a Senior Administrative Assistant to provide high-quality administrative and operational support within Flagship Development that enables leaders and teams to operate efficiently and effectively. This role will initially support 2 SVPs and 3 VPs within Flagship Development.

Flagship Development is Flagship Pioneering's internal therapeutic R&D function. It is responsible for the operational execution of certain programs for our companies. By giving our companies access to in-house drug discovery and development expertise from their earliest stages, Flagship Development allows them to focus on their own science rather than building that capability themselves. This role will support a group of senior leaders in Flagship Development across Cambridge, MA and the UK as the function builds and scales.

This role is responsible for managing calendars, coordinating meetings and travel, planning events, preparing materials, and supporting day-to-day business operations. Success in this position requires exceptional organization, sound judgment, attention to detail, strong communication skills, and the ability to anticipate needs while managing multiple competing priorities in a fast-paced, collaborative environment.

Key Responsibilities

  • Assist several assigned leaders with calendar management, including planning and scheduling of regular and one-off meetings.
  • Assist leaders with travel and expense systems and reporting.
  • Partner with leadership to support preparation for and delivery of meetings, agendas, reports, and presentations.
  • Act as point of contact for guests of the department before, during and after visits
  • Plan and manage department events such as Scientific Advisory Board meetings, department offsites, team meetings, celebrations, etc.
  • Act as the first line of defense for our IT team by troubleshooting minor technical issues related to conference rooms, Microsoft Teams, forgotten laptop chargers/adapters etc.
  • Provide occasional administrative support as needed to key members of the broader team by serving as backup Assistant during out of office periods
  • Participate in special projects as they come up based on your interests, career goals, and capacity.
  • This position is based in our Cambridge office and requires an onsite presence four days per week.

Qualifications

  • At least 3 years of experience providing administrative support to leaders or teams in a complex environment
  • Ability to work with minimal supervision and maintain a high standard of confidentiality.
  • Demonstrated flexibility and professional maturity to readily understand priorities and anticipate needs.
  • Ability to manage conflicting priorities and deliver on the most critical assignments on time and within budget as directed.
  • Must have a positive "can do" attitude, be a consummate team player, show excellent judgment as well as work well independently.
  • Experience with calendar management, planning events, and meeting scheduling.
  • Must be highly proficient in Microsoft office including Word, Outlook, Excel, PowerPoint
  • Must have excellent written and verbal communication skills including attention to detail and ability to effectively multi-task with a willingness to perform a wide range of tasks including working with confidential information.

Additional information

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.

#LI-NM1

About Flagship Pioneering

Flagship Pioneering is a bioplatform innovation company that invents and builds platform 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. Those big leaps in human health and sustainability exponentially accelerate scientific progress in areas ranging from cancer detection and treatment to nature-positive agriculture.

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 scientific founders, entrepreneurial leaders, and professional capital managers are each aligned around an institutionalized process that enables us to innovate and transform 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 twice named to Fast Company's annual list of the World's Most Innovative Companies.

Read the original posting

From Flagship Pioneering's careers page, first listed on Rolev.ai on November 12, 2026. Rolev.ai is not the employer.

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Common questions

Where is the Senior Administrative Assistant job at Flagship Pioneering located?

This Senior Administrative Assistant position at Flagship Pioneering is located in Cambridge, MA USA. Always check Flagship Pioneering's application page for specific state eligibility or relocation policies.

How do I apply for the Senior Administrative Assistant position at Flagship Pioneering?

This listing links directly to Flagship Pioneering's Greenhouse application page. You can apply directly on Flagship Pioneering's site, or use Rolev.ai to check your resume fit, generate a zero-hallucination tailored resume and cover letter for this posting, and autofill the Greenhouse application form in 1 click with the Rolev.ai Chrome extension. You always review the form and press Submit yourself.