A Sr. Accountant's job involves managing financial records, preparing detailed financial statements and reports, ensuring compliance with accounting principles (like GAAP) and tax regulations, performing complex account reconciliations, analyzing financial data to support strategic decisions, overseeing the accounting cycle, and often supervising junior accounting staff. Key responsibilities also include assisting with audits and taxes, improving accounting processes, managing budgets, and possessing strong analytical and technical skills with accounting software and tools like advanced Excel.