Administrative Assistant

One Federal Solution (OFS) is seeking an Administrative Assistant to join our Corporate team at our headquarters in Alexandria, VA. This in-office, part-time role supports day-to-day office operations, provides administrative assistance to internal teams, and assists with basic financial tasks. We are looking for a detail-oriented, organized, and proactive individual who can efficiently manage administrative responsibilities while supporting clerical finance functions.

Office & Administrative Support:

• Serve as the first point of contact for visitors and maintain a professional office environment
• Manage incoming calls, mail, and general correspondence
• Coordinate calendars, meetings, and internal office logistics
• Maintain office supplies, equipment, and overall organization
• Provide administrative support to leadership, including the President & CEO

Administrative Assistant Corporate Support:

• Assist with basic data entry and administrative tracking tasks
• Support timesheet reminders and general internal follow-ups
• Coordinate with internal teams to ensure smooth day-to-day operations
• Assist with special projects and ad hoc administrative needs

Administrative Assistant Required Qualifications:

• Previous administrative or office support experience
• Strong organizational and communication skills
• Proficiency in Microsoft Office (Word, Excel, Outlook)
• Ability to multitask, prioritize, and work independently
• High level of professionalism and discretion

Administrative Assistant Preferred:

• Experience in a corporate or government contracting environment
• Experience supporting executives or leadership teams

About One Federal Solution
One Federal Solution (OFS) is an innovative Professional Services provider with over 20 years of experience supporting Defense and Civilian agencies. OFS specializes in Business Intelligence, Acquisition and Procurement, and other Professional Services. We are pioneers, builders, thought leaders, and pride ourselves in thinking outside the box to co-create with our customers, helping them achieve excellent enterprise wide outcomes. As a certified Service-Disabled Veteran-Owned Small Business (SDVOSB), OFS is committed to providing people who deliver high performance and excellence to our government partners.