Detail-Oriented Accounting Assistant — Bank Recs & Admin

Costello Companies; Sioux Falls (SD); On-site; USD 34,000 - 35,000; Full time

Job summary

Costello Companies in Sioux Falls, SD is seeking an Accounting Assistant who will track and record accounting transactions for assigned properties and support the Property Staff Accountants.

This full-time position reports to the Director of Finance and emphasizes accuracy, confidentiality, and a proactive approach to tasks such as bank reconciliations, invoicing, and processing payments.

We value punctuality, independence, and strong communication in a friendly, collaborative office.

Qualifications

• Bank reconciliation experience is required.
• Administrative/clerical experience is required.
• Excellent oral and written communication skills.
• Willingness to work independently and stay on task.
• Pristine attention to detail and punctuality.

Responsibilities

• Observe office hours.
• Reconcile bank accounts for assigned properties.
• Update property checkbook totals weekly.
• Record accounting transactions in software.
• Code and stamp invoices for payment.
• Process replacement reserve requests.
• Provide support to property staff and management.

Skills

Bank reconciliation

Administrative/clerical

Written and verbal communication

Tools

Accounting software

Job description

Costello Companies in Sioux Falls, SD is seeking an Accounting Assistant who will track and record accounting transactions for assigned properties and support the Property Staff Accountants.

This full-time position reports to the Director of Finance and emphasizes accuracy, confidentiality, and a proactive approach to tasks such as bank reconciliations, invoicing, and processing payments.

We value punctuality, independence, and strong communication in a friendly, collaborative office.