Maintenance Mechanic-Water and Sewer

City of O'Fallon•O'Fallon, MO

3d•$27 - $34

About The Position

The City of O'Fallon, Missouri is seeking a skilled and dependable Maintenance Mechanic – Water & Sewer to support the operation, maintenance, and repair of critical water and wastewater systems across the City. If you're a hands-on professional who takes pride in high-quality, technical work that directly supports public health and essential services, this is an excellent opportunity to make a meaningful impact. The pay range for this position is $27.28-$34.10 DOQ.

Requirements

Considerable knowledge of mechanical equipment maintenance and repair
Knowledge of pumping processes and associated equipment
Working knowledge of pneumatic, hydraulic, electrical, and electronic control systems
Ability to read wiring diagrams and blueprints
Understanding of safety procedures related to high-voltage equipment
Skill in repairing SCADA, instrumentation, and control systems
Skill in operating specialized equipment and hand/power tools
Ability to troubleshoot mechanical, electrical, and electromechanical systems
Effective oral and written communication skills
Ability to use computers and mobile devices for data entry and system monitoring
High school diploma or GED
Ability to lift up to 50 lbs. and maneuver equipment up to 100 lbs.
Ability to work on-call evenings, weekends, and in all weather conditions
1–2 years of experience, apprenticeship, or internship in a related field
Possession of, or ability to obtain, a Class A Commercial Driver's License with tanker endorsement (Missouri)
Ability to obtain Missouri DNR Drinking Water Treatment, Water Distribution, and Wastewater Treatment certifications, as well as MWEA Collection System Operator certification

Responsibilities

Support 24/7 operations for the Water Treatment Plant, Wastewater Treatment Plant, Water Wells, and Sewer Pump Stations
Repair, install, test, and inspect hydraulic, mechanical, electrical, and SCADA systems
Perform preventative and predictive maintenance on water and sewer facilities
Diagnose equipment deficiencies and conduct advanced troubleshooting
Analyze and repair motor control panels, electrical control equipment, and high-voltage systems (220V/480V)
Utilize specialized test equipment such as megohmmeters and volt-ohm meters
Maintain pneumatic, hydraulic, electronic, and computer-based control systems
Inspect and repair instrumentation, PLCs, sensors, transmitters, wiring, and VFDs
Perform welding, cutting, and installation/repair of process piping
Operate machinery and heavy equipment including skid steers, wheel loaders, cranes, vacuum/jet trucks, and backhoes
Assist with purchasing parts, tools, and safety equipment
Maintain buildings, grounds, lagoons, and various City facilities
Complete accurate recordkeeping and daily equipment readings
Assist with snow-removal operations and emergency response
Provide functional supervision in the absence of a supervisor
Perform additional duties that support overall Water & Sewer Operations