Service Administrative Professional

Administrative Assistant

Tulsa, OK (Onsite) Pay: $20.00-$25.00/hour DOE Schedule: Monday-Friday, 8:00 AM-5:00 PM

We're seeking a dependable, organized, and customer-focused Administrative Assistant to support daily office operations for a great company. This role is ideal for someone who enjoys staying organized, multitasking, and providing excellent service to both internal teams and external customers. You will work closely with accounting, sales, customers, and vendors to ensure the office runs smoothly and efficiently.

Answer and direct incoming phone calls professionally.

Welcome customers, vendors, and visitors with exceptional customer service.

Process customer credit card payments.

Create and distribute customer invoices using accounting software.

Scan, file, and organize accounting and business documents.

Order and maintain office, janitorial, and breakroom supplies.

Coordinate weekly lunches, employee events, and office activities.

Assist customers with documentation requests, certifications, and declarations.

Provide administrative support to accounting, sales, and operations teams.

Perform various clerical and administrative duties to support day-to-day business operations.

Previous administrative office experience preferred.

Proficiency with Microsoft Office Suite (Word, Excel, and Outlook).

Experience with accounting software is a plus.

Customer service experience preferred.

Consistent Monday-Friday schedule

If you're a highly organized professional who enjoys supporting business operations and delivering outstanding customer service, we'd love to hear from you. System One, and its subsidiaries including Joulé and Mountain Ltd., are leaders in delivering outsourced services and workforce solutions across North America. We help clients get work done more efficiently and economically, without compromising quality. System One not only serves as a valued partner for our clients, but we offer eligible employees health and welfare benefits coverage options including medical, dental, vision, spending accounts, life insurance, voluntary plans, as well as participation in a 401(k) plan. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex (including pregnancy, childbirth, or related medical conditions), sexual orientation, gender identity, age, national origin, disability, family care or medical leave status, genetic information, veteran status, marital status, or any other characteristic protected by applicable federal, state, or local law.