Senior Accountant

Position Summary

Reporting to the Controller, the Senior Accountant will be an instrumental player in the accounting and financial activities for a portfolio of Flagship entities and will support business and operational initiatives. The senior accountant will work closely with the VP of Finance and leadership teams across a range of accounting systems and reporting processes.

• Execute month‑end, quarter‑end and year‑end close activities in a timely and accurate manner, including preparation and posting of journal entries, balance sheet reconciliations, intercompany invoicing, account analyses and accruals for multiple portfolio companies according to the close calendar.
• Partner with the Controller and FP&A team to support monthly financial reviews, maintain forecast models and contribute to budgeting and forecasting initiatives.
• Develop and manage cash flow forecasts and oversee day‑to‑day cash management activities for a portfolio of companies.
• Support funding initiatives by preparing disclosure schedules and ensuring compliance with related requirements.
• Assist with company equity programs, including 409(a) valuation analysis support, cap table management, equity grants and related compliance and filings.
• Oversee and manage Expensify for employee expense reports from review to reimbursement, ensuring compliance with company policies.
• Maintain and reconcile financial data across multiple systems, including Net Suite, NSPB, Coupa and Lease Query, and support the implementation and integration of new systems and processes as needed.
• Manage fixed assets, finance and operating leases, ensuring compliance with accounting standards and company policies.
• Coordinate and support annual audits (as applicable), statutory filings, debt compliance reporting and investor reporting by ensuring timely preparation and availability of required documentation.
• Collaborate cross‑functionally with internal teams, including Labs, FP&A, Accounts Payable, Legal, Procurement, HR and Payroll, as well as external partners and investors to provide financial insights and operational support.
• Support company evolution, including company launch, scaling operations and mergers of existing portfolio companies.
• Participate actively in implementing accounting policies and procedures to improve financial processes and ensure compliance with regulations.
• Assist with ad hoc projects and initiatives typical of fast‑growing biotech companies.

• Bachelor’s degree in Accounting or Finance.
• CPA license is a plus.
• 4 years of accounting experience, with at least 2 years in public accounting or a high‑growth tech/life sciences company.
• Strong knowledge of US GAAP.
• Experience with accounting systems (e.g., Net Suite or similar ERP).
• Advanced Excel skills and strong attention to detail.
• Ability to manage multiple projects in a fast‑paced environment.

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.

We recognize that great candidates often bring unique strengths without fulfilling every qualification. If you have some of the experience listed above but not all, please apply anyway. We are dedicated to building diverse and inclusive teams and look forward to learning more about your background and interest in Flagship.

The salary range for this role is $76,000 - $104,500. Compensation will depend on a number of factors, including a candidate’s qualifications, skills, competencies and experience. Flagship offers healthcare coverage, an annual incentive program, retirement benefits and a broad range of other benefits. Compensation and benefits information is based on Flagship’s good faith estimate as of the date of publication and may be modified in the future.