Operator, Trainee

West Haven

. Perform unskilled tasks in the operation and maintenance of a water/wastewater treatment plant on an assigned shift .

Posted 11/11/2026full-timeWest Haven • Connecticut • United StatesMid-LevelSeniorWebsite

Core Competencies

Role fit

Core Competencies

Use this summary to align your resume positioning with the role.

Demonstrates knowledge of water/wastewater treatment operations, including equipment servicing, maintenance, and safe work practices. Capable of performing routine laboratory tests and analyses while maintaining effective communication and cooperative relationships with team members.

Highest-signal resume keywords

Water/Wastewater Treatment OperationsEquipment ServicingRoutine MaintenanceLaboratory TestingSafe Work Practices

ATS Keywords

Tailor your resume

Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills

Operation Of PumpsOperation Of EnginesMonitoring GaugesPerforming Laboratory TestsRoutine Maintenance FunctionsSample CollectionFlow ControlValve OperationMeter ReadingChemical Principles

Soft Skills

CommunicationTeam CollaborationAdaptability

Tools & Technologies

Control PanelsPower Lawn Mower

Industry Keywords

Water TreatmentWastewater TreatmentMaintenance WorkBiological PrinciplesChemical PrinciplesCustodial Duties

About the role

Key responsibilities & impact

Perform unskilled tasks in the operation and maintenance of a water/wastewater treatment plant on an assigned shift
Learn and gain skills in equipment servicing and operating tasks
Perform routine maintenance and servicing work in the water/wastewater treatment plant
Operate treatment facilities to control flow and processing of water/wastewater, sludge, and effluent
Monitor gauges, meters, and control panels
Observe and report abnormalities to the supervisor
Operate valves and gates manually or by remote control
Start and stop pumps, engines, and generators to control and adjust flow and treatment processes
Maintain shift logs and record meter and gauge readings
Take samples and perform routine laboratory tests and analyses
Perform routine maintenance functions and custodial duties
Understand and carry out oral and written directions
Establish and maintain cooperative relationships with people contacted during work
Perform related work as required

Requirements

What you’ll need

Knowledge of the principles, methods, and tools employed in the general operations of engines, pumps, and related equipment
Knowledge of general maintenance work
Knowledge of safe work practices
Knowledge of basic biological and chemical principles
Ability to walk up to 3 miles per 8-hour shift
Ability to ascend and descend up to 1,100 stair steps per 8-hour shift
Ability to lift up to 45 bags weighing up to 50 pounds each from floor level up to waist high in an 8-hour shift
Ability to bend frequently to collect samples
Ability to push a push-type, power lawn mower for up to 3 hours per 8-hour shift
Ability to work in all types of weather

Benefits

Comp & perks

Medical, Dental, and Vision Insurance
401(k) Retirement Plan with a City match of up to 8%
Life Insurance
Long-Term Disability Coverage
Employee Assistance Program (EAP)
13 Paid Holidays
Vacation Time, Personal Time, and Sick Leave
50% Tuition Discount at the University of New Haven for City employees