Description We are looking for an experienced Sr. Tax Accountant to join a tax team in Waltham, Massachusetts on a Long-term Contract basis. In this role, you will partner closely with tax leadership to help manage U.S. tax compliance activities and support income tax provision work throughout key reporting cycles. This opportunity is well suited for a detail-oriented candidate who brings strong corporate tax knowledge, works well in a deadline-driven environment, and can contribute value from day one.

Responsibilities:
• Support the preparation and review of federal, state, and local corporate tax filings with an emphasis on accurate and timely domestic compliance.
• Assist with quarterly and annual income tax provision activities by gathering data, preparing schedules, and helping analyze tax positions.
• Partner with the Director of Tax to organize compliance calendars, monitor deliverables, and maintain supporting documentation for audits and reporting.
• Prepa...