Part-Time Administrative Assistant | Data Entry & Invoicing

Express Employment Professionals - Cincinnati East; St. Louis (MO); On-site; USD 32,000 - 34,000; Part time

Benefits offered by this job

Weekly pay

Immediate benefits

Direct Hire path

Interview prep

No fees for you

Quick hiring process

Referral bonuses

Job summary

Express Employment Professionals in St. Louis, MO, is looking for an Administrative Assistant (Part-Time) to join a professional office environment.

This role supports day-to-day operations with organization, multitasking, and accurate data entry. The ideal candidate has 1–2 years of experience in office roles, proficiency with Excel and the Microsoft Office Suite, and basic accounting support; QuickBooks experience is a plus.

Qualifications

• High School Diploma or GED.
• 1–2 years of experience in an Administrative Assistant, Office Assistant, or similar role.
• Prior data entry experience preferred.
• 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 environment.
• 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.

Skills

Data entry

Office administration

Accounting support

Education

High School Diploma or GED

Tools

Microsoft Excel

Microsoft Office Suite

QuickBooks

Job description

Express Employment Professionals in St. Louis, MO, is looking for an Administrative Assistant (Part-Time) to join a professional office environment.

This role supports day-to-day operations with organization, multitasking, and accurate data entry. The ideal candidate has 1–2 years of experience in office roles, proficiency with Excel and the Microsoft Office Suite, and basic accounting support; QuickBooks experience is a plus.