Administrative Assistant to Chief Financial Officer

Archchicago; United States; On-site; USD 43,000 - 53,000; Full time

Job summary

Marian Catholic High School is seeking an Administrative Assistant to support the Chief Financial Officer and Business Office. Primary duties include accounts payable processing, documentation review, and financial recordkeeping with a focus on accuracy and internal controls.

The ideal candidate has strong organizational and communication skills, experience with financial software, and the ability to work both independently and collaboratively in a school office environment.

Qualifications

• Minimum a high school diploma; strong interpersonal and communication skills.
• Experience with cash management, bookkeeping, accounts payable, insurance, or related business functions.
• Knowledge of Blackbaud, Corpay, and/or similar financial management applications preferred.

Responsibilities

• Reports to the Chief Financial Officer and supports the Business Office serveries, including Accounts Payable, PO processing, invoice reviews, and payment reconciliations.
• Maintains financial records, assists with cash management, and provides administrative, human resources, and bookkeeping support as assigned.

Skills

Interpersonal skills

Communication

Organizational skills

Data entry

Computer skills

Problem-solving

Financial software experience

Education

High School Diploma

Tools

Blackbaud

Corpay

Job description

Administrative Assistant to Chief Financial Officer

• Position Type:Administration - Non Certified/ Finance Assistant
• Date Posted:8/20/2026
• Location:Marian Catholic High School

Department: Business Office

Salary: 12-month position with a starting base salary of no less than $48,000 annually.

Qualifications

Individuals interested in this position should have prior years of business and office experience and demonstrate the skills necessary to contribute to the efficient operation of the Business Office. The ideal candidate will possess a minimum of a high school diploma; strong interpersonal and communication skills; demonstrated ability to work effectively with employees, stakeholders, and vendors; experience with cash management, bookkeeping, accounts payable, insurance, or related business functions; strong organizational, data entry, computer, mathematical, and problem-solving skills; and experience with financial management software. Knowledge of Blackbaud, Corpay, and/or similar financial management applications are preferred. The successful candidate must demonstrate attention to detail, maintain confidentiality, manage multiple priorities in an environment with frequent interruptions, work both independently and collaboratively, and demonstrate a commitment to continued professional growth.

Job Responsibilities

Administrative Assistant reports to the Chief Financial Officer and works closely with the Business Manager and Main Office staff to support school initiatives and the needs of Marian Catholic stakeholders. The Administrative Assistant's primary responsibility is Accounts Payable, including preparing accounts payable listings; processing purchase orders, check requests, invoices, and credit card purchases; reviewing documentation for accuracy, appropriate authorization, and compliance with Board policies and internal controls; assisting with the management and reconciliation of checking accounts; maintaining accurate financial records; and providing administrative, human resources, and bookkeeping support as assigned. As a member of the School's Office Support Team, the Administrative Assistant develops collaborative working relationships with staff and administrators and serves as a resource regarding financial software, Business Office procedures, cash management protocols, purchasing and payment processes, and bookkeeping best practices