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Administrative Assistant

Mack & Associates, Ltd.
Oak Brook, IL Full Time
POSTED ON 5/31/2026
AVAILABLE BEFORE 6/28/2026

A dynamic and growing property management organization located in Oak Brook is seeking a polished and highly motivated Administrative Assistant to join its team in a fully onsite capacity. This exciting opportunity offers a salary range of $50,000–$58,000, depending on experience level, along with free onsite parking and exceptional long-term growth potential within the company. This role follows a Monday through Friday, 8:00 AM to 5:00 PM schedule, with the possibility of an 8:30 AM start time, and is ideal for a dependable and professional individual who values punctuality, accountability, and being an integral part of a collaborative office environment. In this role, you will support a busy property management team through a variety of administrative, tenant-facing, and financial coordination responsibilities including managing spreadsheets, uploading invoices, handling correspondence, and serving as a polished first point of contact for tenants and internal stakeholders. This is an outstanding opportunity for a recent graduate or early-career professional with a business, finance, or accounting background seeking hands-on experience, professional development, and the opportunity to build a long-term career within a supportive and fast-paced organization.


Responsibilities of the Administrative Assistant:

  • Support daily administrative operations for the property management team in a fast-paced corporate office environment
  • Serve as a professional and responsive first point of contact for tenants, vendors, and internal stakeholders
  • Prepare, maintain, and update spreadsheets, invoices, reports, and financial documentation with strong attention to detail
  • Upload invoices, assist with financial tracking, and support administrative accounting-related tasks as needed
  • Manage a high volume of emails and correspondence while ensuring timely and professional communication
  • Maintain organized office records, files, and operational documentation with accuracy and efficiency
  • Coordinate multiple priorities and responsibilities while contributing to a collaborative and professional office environment


Qualifications of the Administrative Assistant:

  • Bachelor’s degree required, preferably in Business, Finance, Accounting, or a related field
  • Previous internship, administrative, office, customer service, or corporate experience preferred
  • Strong attention to detail with the ability to manage financial and administrative tasks accurately
  • Proficiency in Microsoft Office applications including Excel, Word, and Outlook
  • Excellent interpersonal and communication skills with a polished and professional demeanor
  • Dependable, punctual, and committed to maintaining a consistent fully onsite schedule
  • Motivated and adaptable professional with a strong work ethic and desire to grow within the organization


B-3

Salary : $50,000 - $58,000

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