Part-Time Administrative Assistant: Data Entry & Invoicing

Cella Inc; St. Louis (MO); On-site; USD 32,000 - 34,000; Part time

Benefits offered by this job

Weekly pay

Immediate benefits

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Job summary

Express Employment Professionals Saint Louis is hiring a part-time Administrative Assistant to support day‑to‑day operations in a professional office setting. The role emphasizes data entry, invoicing, and basic accounting tasks, with room to grow.

Flexible, entry‑level friendly environment and strong Excel/Office proficiency preferred. The position offers a Monday–Friday schedule from 9:00 AM to 1:00 PM, with pay between $23.00 and $25.00 per hour.

Qualifications

• High School Diploma or GED
• 1–2 years of Administrative Assistant experience
• Experience with QuickBooks is a plus
• Proficiency in Microsoft Excel and Microsoft Office Suite
• Strong organizational skills and attention to detail
• Ability to multitask and prioritize in a fast-paced office
• Excellent verbal and written communication skills

Responsibilities

• Provide daily administrative support including filing, scanning, copying, and document organization
• Perform accurate and efficient data entry
• Process invoices, payments, and financial transactions
• Maintain financial records using accounting software
• Use Microsoft Excel for data tracking, reporting, and organization
• Communicate professionally with clients, vendors, and internal teams via phone and email
• Support general office operations and complete additional duties as assigned

Job description

Express Employment Professionals Saint Louis is hiring a part-time Administrative Assistant to support day‑to‑day operations in a professional office setting. The role emphasizes data entry, invoicing, and basic accounting tasks, with room to grow.

Flexible, entry‑level friendly environment and strong Excel/Office proficiency preferred. The position offers a Monday–Friday schedule from 9:00 AM to 1:00 PM, with pay between $23.00 and $25.00 per hour.