Maintenance Mechanic-Water and Sewer

City of O'Fallon•O’Fallon, MO

3d•$27 - $28•Onsite

About The Position

The City of O'Fallon is seeking a skilled and dedicated Maintenance Mechanic to support operations within our Water and Sewer Department. This essential role performs advanced technical work to maintain, repair, and overhaul hydraulic, mechanical, electrical, and SCADA systems across the City's Water Treatment Plant, Wastewater Treatment Plant, Water Wells, and Sewer Pump Stations. This position supports 24/7 operations and plays a vital role in ensuring safe, reliable, and regulatory-compliant utility services for our community.

Requirements

High school diploma or GED required.
Ability to work on-call evenings/weekends and in all weather conditions.
One to two years of relevant experience or equivalent apprenticeship/internship.
Ability to obtain a Missouri Class A CDL with tanker endorsement.
Ability to obtain required Missouri DNR certifications in Drinking Water Treatment, Water Distribution, Wastewater Treatment, and MWEA Collection Systems.
Strong knowledge of mechanical equipment maintenance and pumping systems.
Experience with pneumatic, electrical, hydraulic, and electronic control systems, including calibration and analysis.
Familiarity with SCADA repair and interpretation of wiring diagrams/blueprints.
Knowledge of safety practices related to 220V and 480V electrical equipment.
Understanding of water and wastewater system maintenance.
Skill in using specialized equipment, hand tools, power tools, computers, and mobile devices.
Effective oral and written communication skills.

Nice To Haves

Employees must pursue the highest level of eligible DNR certifications.

Responsibilities

Maintain, repair, overhaul, install, and inspect hydraulic, mechanical, electrical, and SCADA systems.
Perform preventative and predictive maintenance on water and sewer facilities.
Diagnose equipment deficiencies and perform advanced electrical/electromechanical troubleshooting, including work on 220V and 480V systems.
Analyze faults and maintain motor control panels and electrical control equipment.
Operate hand and machine tools to precise tolerances.
Utilize specialized test equipment such as megohmmeters, volt-ohm meters, pneumatic and electronic control devices.
Maintain and install pneumatic, hydraulic, electronic, and computer-based controls; lubricate and inspect equipment.
Service instrumentation sensors, transducers, PLCs, control wiring, and VFDs.
Perform welding, cutting, and process piping repairs.
Assist with grounds and building maintenance, SCADA monitoring, and equipment operation including skid steers, loaders, cranes, vacuum/jet trucks, and backhoes.
Address customer concerns, assist with purchasing, maintain facilities, perform data entry and daily readings.
Provide functional supervision when needed and assist other City crews.
Support asset management activities and respond to emergency situations.
Assist with snow removal and perform related duties as assigned.

Benefits

Medical, Dental, Vision, employer-paid Accident and Life Insurance
Optional HSA with employer contribution and FSAs
Optional Pet Insurance
Wellness incentives and onsite fitness facilities
Discounted membership at Renaud Fitness & Aquatic Center
Employee Assistance Program and Identity Theft Protection
Paid leave: 3 weeks vacation for new hires, 11 holidays, 1 personal holiday, sick leave, and extended illness leave
Missouri LAGERS L-6 Pension Plan and 457(b) retirement plans
Tuition reimbursement
Designated Zen and lactation rooms at select facilities