Job Description

Job Title: Office Administrator/Administrative Manager

Location: Washington, DC (On-site)

Industry: Professional Services

Pay: $37–$45/hr (80-100k upon conversion)

Employment Type: Contract-to-Hire

Work Schedule: 40 hours/week

Background Check: Standard criminal, drug screen, education & employment verification

About Our Client:

Addison Group is partnering with a prestigious client in Washington, DC, known for its influential network and high-touch environment. This small, high-profile organization values long-term team members and is seeking an experienced administrative professional to play a critical role in supporting leadership and overseeing office operations. The workplace is fast-paced, polished, and mission-driven, offering a unique opportunity to grow within a collaborative, well-connected team.

Job Description:

This hybrid Office Administrator / Executive Assistant role blends traditional EA responsibilities with day-to-day office operations management and event coordination. You’ll be the right hand to senior leadership, manage office-wide communications and logistics, and lead firm events from concept to execution. This is a high-visibility role ideal for someone who is polished, detail-oriented, and thrives in a dynamic environment.

Key Responsibilities:

• Provide C-suite level executive support, including complex calendar management and travel coordination
• Oversee office operations, vendor relationships, supply management, and space maintenance
• Handle light financial tasks including invoicing, expense tracking, and accounts receivable
• Plan and execute firm events—from internal meetings to large-scale annual functions
• Serve as a key point of contact for internal staff and external stakeholders
• Assist with onboarding new hires and support team logistics

Qualifications:

• 5+ years of experience in office administration or management, with 1+ year supporting executives
• Professional services background preferred (legal, consulting, private equity)
• Prior experience in small companies (≤ 50 employees) is a strong plus
• High proficiency in Microsoft Office 365; expert in Outlook
• Exceptional communication, time management, and organizational skills
• High degree of discretion and professionalism
• Bachelor’s degree strongly preferred
• Must not be currently enrolled in school

Perks:

• Beautiful, centrally located DC office with rooftop access
• Exposure to high-level, national figures and events
• Chance to be part of hiring and mentoring an administrative team member
• Tight-knit, mission-aligned team with long-term vision
• Professional development opportunities in events, operations, and executive support

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.

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