Office Assistant

We are looking for an experienced and detail-oriented Senior Administrative Assistant to support daily administrative operations in Washington. This contract position will work closely with leadership and internal teams to keep office processes organized, responsive, and accurate. The ideal candidate brings strong judgment, professionalism, and the ability to manage confidential information while balancing multiple priorities in a fast-paced environment.This administrative assistant should have a strong customer service mentality, data entry, light A/P support, and resourceful attitude. Responsibilities:• Provide high-priority administrative support to leadership and assist stakeholders based on business needs and direction.• Handle a broad range of office coordination duties for staff, including document preparation, scheduling support, and general clerical assistance.• Respond to account questions and support follow-up activities related to past-due balances in partnership with billing personnel.• Process incoming payments, record receipts accurately, and prepare daily deposit documentation with proper reconciliation.• Oversee office supply levels, place orders when needed, and help maintain an efficient administrative workspace.• Organize and maintain paper-based files and records to ensure documents are accessible, accurate, and properly stored.• Support finance-related administrative tasks such as reviewing timekeeping exceptions, auditing timesheets, and coordinating accounts payable workflows from invoice intake through check processing and vendor statement review.• Manage incoming mail, package deliveries, meeting room calendars, training logistics, and administrative process improvement recommendations while keeping leadership informed of relevant operational matters.