Administrative Assistant

Addison Group; Washington (District of Columbia); Hybrid; USD 39,000 - 44,000; Part time

Benefits offered by this job

Medical benefits

Dental benefits

Vision benefits

401(k) plan

Job summary

Addison Group is placing an Administrative Assistant to support a dynamic Operations & Finance team in Washington, DC. This role ensures smooth day-to-day administrative and operational functions while partnering with leadership.

The position supports finance operations, vendor coordination, and budgeting while enabling collaboration across stakeholders in a well-established national organization.

Qualifications

• 4+ years of administrative experience in a professional office setting.
• Experience with invoicing, purchase orders, or vendor coordination preferred.
• Experience supporting senior leadership is a plus.
• Proficiency in Microsoft Office; ERP exposure is a plus.
• Strong communication and attention to detail; highly organized.
• Associate degree required; Bachelor's degree preferred.
• Opportunity for long-term growth and advancement.

Responsibilities

• Provide administrative and operational support to the finance and operations team.
• Enter and manage financial data (purchase requests, invoices, receipts) in ERP.
• Validate vendor information following internal compliance procedures.
• Coordinate submission and tracking of agreements in contract systems.
• Assist with outreach regarding outstanding payments or unidentified transactions.
• Support budgeting efforts through data entry and tracking.
• Prepare and distribute tax forms and official correspondence.
• Manage mail, sorting, distribution, and special handling.
• Offer general office support such as filing, copying, and supplies.
• Back up senior administrative staff as needed.
• Oversee commuter benefit program administration.
• Coordinate internal meetings, team events, and occasional external functions.

Skills

Interpersonal skills

Organizational skills

Attention to detail

Judgment

Time management

Education

Associate degree

Bachelor's degree preferred

Tools

Microsoft Office Suite

ERP systems (Workday/Concur)

Job description

Industry: Professional Services / Trade Association

Location (city, state): Washington, DC

Assignment Type: Contract-to-Hire

Pay: $28–$32/hour (depending on experience)

Work Schedule: Monday–Friday, 8:45 AM – 5:00 PM (Hybrid: 2–3 days onsite)

Benefits: This position is eligible for medical, dental, vision, and 401(k).

About Our Client:

Our client is a well-established national organization within the financial services space, representing a broad network of institutions and providing industry resources, education, and advocacy. They are known for their collaborative environment, strong leadership, and commitment to professional development.

Job Description:

Addison Group is hiring on behalf of our client for an Administrative Assistant to support a dynamic Operations & Finance team. This individual will play a key role in ensuring smooth day-to-day administrative and operational functions while partnering closely with internal stakeholders and leadership.

Key Responsibilities:

• Provide administrative and operational support to the finance and operations team, ensuring efficient workflow and organization
• Enter and manage financial data such as purchase requests, invoices, and receipts within an ERP system
• Validate vendor and supplier information in alignment with internal compliance procedures
• Coordinate submission and tracking of agreements through internal contract systems
• Assist with outreach regarding outstanding payments or unidentified transactions
• Support departmental budgeting efforts through data entry and tracking activities
• Prepare and distribute documentation including tax forms and official correspondence
• Manage incoming and outgoing mail, including sorting, distribution, and special handling requirements
• Offer general office support such as filing, copying, and supply management
• Serve as backup support for senior administrative staff as needed
• Oversee employee commuter benefit program administration
• Assist with coordination of internal meetings, team events, and occasional external functions

Qualifications:

• 4+ years of administrative experience in a professional office environment
• Prior exposure to invoicing, purchase orders, or vendor coordination strongly preferred
• Experience supporting senior leadership or executives is a plus
• Proficiency in Microsoft Office Suite; experience with ERP systems (e.g., Workday, Concur, or similar) is a plus
• Strong interpersonal skills with the ability to communicate effectively across all levels of an organization
• Highly organized with strong attention to detail and sound judgment
• Associate degree required, Bachelor's degree is preferred
• Opportunity for long-term career growth and internal advancement
• Exposure to senior leadership and high-visibility projects
• Collaborative and professional work environment
• Stable organization with strong industry presence

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.