Associate Director/Director International Accounting and Government Compliance

Who We Are Flagship Pioneering is a biotechnology company that invents and builds platform companies that change the world. We bring together the greatest scientific minds with entrepreneurial company builders and assemble 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. Position Summary The Associate Director / Director, International Accounting & Government Compliance will own accounting, compliance, and financial close for Flagship Pioneering’s international subsidiaries, partnering closely with Flagship’s outsourced international service provider, Vistra, to ensure accurate and timely local and consolidated reporting. The role supports Flagship’s continued international expansion, coordinating with outsourced providers, Legal, and HR as new entities and jurisdictions come online, and serves as a key finance partner on international billing and allocations and UK-based equity and compensation matters. The role also has oversight of Flagship’s government contracting entity, acting as the primary financial bridge between Flagship, the portfolio companies performing work under the government contract, and the third-party partners that help facilitate and support that relationship with the government. The ideal candidate is a hands-on accounting and compliance professional with experience managing multi-entity, multi-jurisdiction financial operations, coordinating outsourced service providers, and partnering cross-functionally across finance, legal, HR, and compensation teams. Key Responsibilities Operating Model, Governance & UK Playbook Establish the operating playbook for Flagship’s international operations, partnering cross-functionally with Legal, HR, Treasury, Tax, and Compensation on entity structure and setup Own accounting and administration for UK-based equity and compensation programs, partnering with the US Compensation team on program design, reporting, and compliance Define governance oversight at the Flagship level for international entities, effectively replicating Flagship’s operating and company-creation engine in the UK International Accounting, Compliance & Financial Close Own accounting and compliance for Flagship Pioneering’s international subsidiaries, including financial close, review of local reporting packages, journal entries, and intercompany eliminations Ensure accurate and timely recording of transactions in local statutory books and in the parent company’s consolidated financial statements, including proper accounting for foreign currency translation and transactions (CTA, FX gains/losses) Own the annual compliance and financial audit process, serving as primary point of contact for external auditors, local statutory advisors, and tax authorities Coordinate local statutory audits and tax return filings, and monitor regulatory and compliance requirements across jurisdictions to ensure timely filings Maintain internal controls and compliance with Flagship’s accounting policies across international entities Own the day-to-day relationship with Vistra, Flagship’s international outsourced support provider, including evaluation and onboarding of new outsourced providers as the international footprint expands Partner with Legal and HR on entity setup, registrations, and compliance requirements as new international entities and jurisdictions come online International Billing & Allocations Support international billing and cost allocation processes across Flagship entities Partner with Finance Operations team on international billing and allocations, ensuring accuracy and timeliness of intercompany charges Government Contracting Financial Reporting Partner with heads of finance and operational teams at portfolio companies on matters related to Flagship’s government contracting entity Develop and maintain aggregated budget-to-actual reports for senior leadership Perform close activities for Flagship’s government contracting entity Partner with third-party advisors supporting the government contracting relationship, helping facilitate coordination between Flagship and the government Cross-Functional Collaboration Partner with Legal, HR, Treasury, Tax, and the US Compensation team to support international operations Provide ad hoc reporting and analysis to finance leadership on international entity performance and compliance status Qualifications Required Bachelor’s degree in Accounting, Finance, or related field; CPA preferred 8+ years of progressive accounting/finance experience, including multi-entity, multi-jurisdiction accounting Experience supporting international expansion and new entity setup Experience managing outsourced service providers (e.g., Vistra or similar) across m