Do you want to join a mission-driven organization that makes a difference in the U.S. healthcare landscape? ASTRO, the American Society for Radiation Oncology, is seeking an experienced Finance & Accounting professional to join our Finance team.  Reporting to the Finance Director, the Assistant Finance Director is responsible for managing accounting activities related to accurate financial reporting, ensuring compliance with general accepting accounting principles, corporate policies, external audits, and the annual IRS and Virginia tax filings. This position will be responsible for leading the month end close, developing and maintaining accounting principles, practices, and procedures to analyze financial information, preparing accurate and timely financial reports and st