PART TIME Admin Assistant

Job Title

Administrative Assistant (Part-Time)

Rosemont, IL (Hybrid – 3 days onsite Mon–Wed)

Nonprofit

$22–$24/hr (based on experience)

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

Addison Group is partnering with a national nonprofit organization seeking part-time administrative support.

This role supports daily office operations and provides front-line administrative assistance to staff, visitors, and external contacts. The position is part-time (25–30 hours per week) and is ideal for someone who enjoys a variety of administrative tasks in a professional office environment.

• Greet and assist visitors, clients, and vendors in a professional manner
• Answer, screen, and route incoming calls while documenting messages accurately
• Monitor shared email inbox and respond or redirect inquiries as needed
• Handle general office tasks including filing, scanning, copying, and data entry
• Maintain organization of both electronic and physical records
• Sort, distribute, and process incoming mail and packages; coordinate outgoing shipments
• Track office and breakroom supplies, reorder inventory, and keep common areas organized
• Support scheduling needs including meetings, calendars, and conference room coordination
• Assist with logistics for team meetings including catering and basic event setup
• Help coordinate travel-related arrangements such as hotel bookings when needed
• Support expense report tracking and submissions for leadership and committees
• Provide general administrative support across a small office team as needed

• 2+ years of administrative or office support experience
• Strong customer service and communication skills
• Comfortable working in a professional office environment
• Proficiency in Microsoft Office Suite
• Strong attention to detail and ability to multitask

• Consistent weekday schedule within part-time hours
• Opportunity to support a mission-driven organization
• Collaborative and professional office culture
• Exposure to a variety of administrative and operations functions

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.