Senior Administrative Assistant

Job Title: Senior Administrative Assistant

Location (city, state): Washington, DC

Industry: Administrative / Executive Support

Pay: $26–$31/hr (based on experience)

Type: Contract(4–5 months)

Hours: Full-time, 40 hours per week

Background Check: Required

About Our Client:

Addison Group is partnering with a well-respected organization in Washington, DC seeking a detail-oriented and reliable Senior Administrative Assistant to support their team. This role is ideal for someone with strong organizational skills and a proactive mindset, looking to contribute to the success of a dynamic and fast-paced workplace.

Job Description:

We are hiring a Senior Administrative Assistant to provide high-level administrative support to senior leadership and internal teams. This is a 4–5 month contract position, fully on-site in Washington, DC. The successful candidate will be responsible for managing calendars, supporting invoice tracking, organizing travel, and coordinating events.

Key Responsibilities:

• Provide calendar management for senior leadership, including scheduling and conflict resolution
• Support executives and team members with various administrative tasks
• Coordinate travel arrangements and prepare related logistics
• Process and track company invoices, updating internal spreadsheets daily
• Maintain and monitor invoice status updates for the broader team
• Assist in planning internal meetings and events, ensuring all logistics are handled smoothly

Qualifications:

• 3–5 years of experience in senior administrative or executive assistant roles
• Proficiency in Microsoft Office Suite (especially Excel) and Concur expense system
• Strong organizational and communication skills
• Detail-oriented, analytical, and dependable
• Bachelor’s degree preferred but not required (experience may substitute)

Perks:

• Gain valuable experience supporting executive leadership
• Opportunity to contribute to key internal processes
• Work in a professional, team-oriented office environment
• Competitive hourly compensation
• Benefits: Medical, Dental, Vision, 401K

Addison Group is an Equal Opportunity Employer. Addison Group provides equal employment opportunities (EEO) to all employees and applicants for employment without regard to race, color, religion, gender, sexual orientation, national origin, age, disability, genetic information, marital status, amnesty, or status as a covered veteran in accordance with applicable federal, state and local laws. Addison Group complies with applicable state and local laws governing non-discrimination in employment in every location in which the company has facilities. Reasonable accommodation is available for qualified individuals with disabilities, upon request.