Office Administrator

Location: 1115 Goodnight Ln, Dallas, TX
Schedule: Monday to Friday, 8:00 AM – 5:00 PM (Full-Time)
Pay: $23.00/hr
Status: On-site | Not Remote

About the Role

Liquid Environmental Solutions (LES) is seeking an experienced and detail-oriented Office Administrator to join our Dallas Plant team. This is a key administrative position that supports operational, billing, and procurement processes at our facility.

If you have a strong background in purchase orders, invoicing, accounts payable/receivable, and general administrative support, this role offers the opportunity to take ownership of critical functions that help keep our operations running smoothly.

What You’ll Be Doing

• Manage and process work orders and purchase orders in compliance with internal policies
• Collaborate with Sales, Customer Service, Credit/Collections, and Billing to coordinate account and order requirements
• Generate and match invoices with completed work and ensure timely billing
• Track, verify, and reconcile costs associated with jobs and purchases
• Maintain PO logs, billing spreadsheets, and assist with monthly budget tracking
• Investigate and resolve account discrepancies or customer billing questions
• Support the plant leadership team with general administrative needs, vendor coordination, and data entry
• Help identify cost anomalies or inefficiencies
• Maintain documentation for audits and ensure operational compliance
• Perform other administrative and support tasks as assigned

Who We’re Looking For

You’ll thrive in this role if you:

• Have strong experience with purchase orders, invoicing, and cost tracking
• Understand the flow of AP/AR and can reconcile accounts
• Enjoy working in a fast-paced, industrial environment where your work makes a real impact
• Can juggle multiple tasks, systems, and stakeholders
• Aren’t afraid of a little dirt, noise, or “real world” grit — our team works hard and gets things done

What You Need to Succeed

Required:

• 3 years of experience in an administrative role involving POs, invoicing, or AP/AR
• Strong Excel skills (e.g., formulas, Pivot Tables, VLOOKUP)
• Excellent organization, time management, and communication skills
• Experience supporting or working within a budget or cost control environment
• High school diploma or equivalent

Preferred:

• Experience with CRM or ERP systems (e.g., Oracle, SAP, Microsoft Dynamics)
• Background supporting plant, logistics, trucking, or industrial operations

Compensation & Benefits

Pay: $23.00/hour (starting wage)

Benefits Include:

• 401(k) with company match
• Health, dental, and vision insurance
• Flexible Spending and Health Savings Accounts
• Paid Time Off
• Employee Referral Program
• Company-paid training and advancement opportunities

About LES

Liquid Environmental Solutions is the nation's leading provider of non-hazardous liquid waste solutions. We provide service that’s critical to public health, and we do it with pride. Our drivers, technicians, and administrators all contribute to a cleaner, safer environment.