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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.
Job Responsibility
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
Requirements
Demonstrated experience in administrative support roles with a strong focus on accuracy, organization, and follow-through
Ability to handle confidential information with discretion and maintain a detail-oriented approach in all interactions
Proficiency in data entry, back-office administration, and managing multiple priorities within established deadlines
Experience supporting accounts payable activities, including invoice entry, approvals coordination, and records reconciliation
Comfortable using multi-line phone systems and communicating effectively with internal staff and external contacts
Strong time management skills with the ability to work independently and collaboratively across departments
Experience coordinating meetings, conference calls, office records, and general administrative workflows