Administrative Assistant

Location: Sioux Falls, SD (in-office hours)

About Us: KeyMedia Solutions is a forward-thinking digital marketing firm dedicated to solving real problems for our clients by harnessing advanced technology in online marketing. Our team is made up of intellectually curious individuals who prioritize integrity, family, and gratitude. We’re committed to personal and intellectual growth to continually improve the outcomes for those we serve.

Position Overview: We are excited to announce the opening of a Part-Time Administrative Assistant to join our innovative team. This role involves supporting our office operations through tasks such as meeting preparations, travel planning, managing office supply inventories, and performing basic bookkeeping and proofreading duties.

Key Responsibilities:

  • Assist with basic bookkeeping tasks using QuickBooks Online: process bills, categorize expenses, log receipts, print checks, prepare, and deliver bank deposits.
  • Assist with company documentation: update company database records, enter data in MS Excel, draft, and revise process docs.
  • Provide support for weekly team meetings: prepare space and organize materials for meetings, take meeting notes, update AI meeting notes, facilitate post-meeting communication and tasking.
  • Daily office admin tasks: Collect and process mail and general company email, manage office supply inventory, answer the phone, assist the team in maintaining a tidy workplace.
  • Proofread written materials to ensure accuracy and coherence.
  • Help team members with other administrative tasks as the need arises, such as managing calendars, assisting with scheduling, making travel arrangements, organizing, and overseeing company events, updating the website, etc.


  • Experience with QuickBooks Online or the ability to learn this software quickly.
  • Extensive experience with Microsoft Office applications, especially Excel and Word. Familiarity with databasing formulas and pivot tables in Excel is a plus.
  • Confident in learning and working with various cloud-based software programs, including databases and project management software.
  • Self-starter—ability to identify what needs to be done and execute tasks with minimal oversight.
  • Excellent attention to detail.
  • Strong collaboration skills.
  • Previous experience in an advertising agency or marketing team is a plus but not required.

Work Hours & Benefits:

  • This part-time position requires 15 hours per week in our Sioux Falls office.
  • Flexible scheduling available.
  • Competitive pay based on experience.
  • Paid Time Off and Paid Holiday.
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