Business Office Summer Assistant

The Rivers School•Weston, MA

14h•$20 - $24

About The Position

The Rivers School — a 6-12 co-ed independent day school in Weston, MA, just outside Boston — seeks professionals who are looking to join a dynamic, innovative, and welcoming school community. Position Purpose: The Business Office Summer Assistant provides administrative support to the Business Office, ensuring accurate and efficient processing of daily, monthly, and annual financial operations. This position is Non-Exempt, part-time (24 hours per week, 6/1/26 - 9/25/26) and will report to the Accounts Payable Coordinator and Business Office Manager.

Requirements

Training on all tasks will be provided though some experience in an office environment is preferred
Experience with Google Workspace and/or Microsoft Office is required. Experience using accounts payable and billing systems is a plus.
Discretion: Ability to handle sensitive financial information with total confidentiality
Communication: Ability to interact professionally with other employees, vendors, and parents.
Collaborative
Detail-Oriented: Focus on accuracy on data entry projects and tasks.
Learning Mindset: Willingness and ability to learn new tasks and ask questions.
Responsiveness

Responsibilities

Record and deposit checks for in-school payments for Rivers and RSC tuition
Enter invoices into accounts payable system as directed by the Accounts Payable Coordinator
Outreach calls to vendors to clarify invoices as needed
Complete accounts payable, billing, and controller filing tasks as needed
Assist with other projects as needed
File and record business office documents (such as utilities and certificates of insurance)
Update electrical and gas usage in the utilities tracking spreadsheet
Manage outstanding check notifications as needed
Retrieve information from files as directed by the Controller in support of the annual audit (July - August)
Prepare folders/binders ready for upcoming school year including, but not limited to, monthly checks, transmittals, Journal Entries (with separators for organization), and Cash (July)
Update Business Office Manual as needed, including managing Scribe instructions (June)
Create next fiscal year AP Vendor Record File Folders (June/July)
Box up AP Vendor Record File Folders from two years ago and arrange for boxes to be stored. (July)
Assist with disbursement of end of year refunds for families of graduating students (June)
Create and mail 18th birthday letters through a mail merge, and stuff envelopes (June, July, August)
Create Satter Scholar binders for upcoming school year (August)