Wastewater Treatment System Operator

Kimley-Horn • Mesa, AZ

2d • Onsite

About The Position

Kimley-Horn is seeking a Wastewater Treatment System Operator near Chandler, AZ with 2+ years of experience to join their Water and Wastewater team. This is a full-time role for a Certified Wastewater Treatment System Operator. The position involves operating and monitoring treatment processes to maintain compliance with permits and operating targets, performing process control sampling and basic lab testing, conducting routine equipment inspections, troubleshooting issues, performing preventive maintenance, responding to alarms and operational upsets, and maintaining accurate logs and documentation. The role also requires adherence to safety programs and participation in training and safety meetings, as well as supporting SOP updates, optimization initiatives, and audits/inspections.

Requirements

• A High School diploma or General Education Development (GED) equivalent.
• Arizona Department of Environmental Quality (ADEQ) Grade 2 Wastewater Treatment Plant Operator's Certification (or equivalent certification from a reciprocal jurisdiction) at time of application.
• Two years of experience in the operation and maintenance of water and/or wastewater treatment plants and related facilities.
• Strong documentation habits and comfort with math/process calculations.
• Excellent verbal, written, and interpersonal skills.

Responsibilities

• Operate and monitor treatment processes (e.g., headworks, aeration/anoxic basins, MBR, screw press sludge dewatering, UV disinfection, pump stations, odor control, and SCADA) to maintain compliance with permits and operating targets.
• Perform process control sampling and basic lab testing (e.g., pH, DO, TSS, settleability, chlorine residual, turbidity as applicable); interpret results and adjust operations and chemical dosing accordingly.
• Conduct routine equipment inspections/rounds; identify abnormal conditions and take corrective action.
• Troubleshoot mechanical/electrical/process issues; coordinate repairs with maintenance staff and/or contractors.
• Perform preventive maintenance tasks (lubrication, cleaning, calibration checks) and maintain housekeeping and safety standards.
• Respond to alarms and operational upsets; participate in after-hours/holiday/on-call rotation.
• Maintain accurate shift logs, work orders, chemical usage, meter readings, and compliance documentation.
• Follow safety programs and participate in training and safety meetings.
• Support SOP updates, optimization initiatives, and audits/inspections.

Benefits

• 2-to-1 company match on up to 4% of eligible compensation (salary + bonus) and additional profit-sharing contribution.
• Low-cost medical, dental, and vision insurance options.
• Personal leave, flexible scheduling, floating holidays, and half-day Fridays.
• Student loan matching in our 401(k), and performance-based bonuses.
• Tuition reimbursement and extensive internal training programs.
• New Parent Leave, family building benefits, and childcare resources.

What This Job Offers

• Job Type: Full-time
• Career Level: Mid Level
• Education Level: High school or GED