Office Administrator

Office Administrator

Job Category : Treatment & Recovery

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.