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Senior Maintenance/Instrumentation Technician

$115.32k - $140.17k

West County Wastewater

Maintenance/Instrumentation Technician

WCW is seeking qualified candidates to fill vacancies at both the Maintenance/Instrumentation Technician and Senior Maintenance/Instrumentation Technician levels. We are looking for dedicated, results-driven individuals who demonstrate personal accountability, sound judgment, and a commitment to operational excellence. These positions perform a variety of skilled and semi-skilled tasks in support of the Maintenance Division, including the installation, maintenance, troubleshooting, and repair of WCW facilities, machinery, instrumentation, and equipment. Responsibilities will vary based on the position level, with the senior-level role requiring greater technical expertise, independence, and responsibility.

The successful candidate may be appointed at any level depending on qualifications and experience.

Maintenance/Instrumentation Technician $115,320.92 - $140,173.28 Annually

Senior Maintenance/Instrumentation Technician $138,149.96 - $167,921.78 Annually

The Ideal candidate has well developed interpersonal skills which involve providing excellent customer service to internal and external customers. The incumbent will be self-driven with good problem-solving skills who is reliable, flexible, and has a strong sense of accountability that is consistent with WCW's core values, expectations, and other organizational needs. We are looking for someone who is:

  • Knowledgeable. You will need to be knowledgeable of established safety policies and procedures and applicable codes and regulations.
  • Customer focused. Your role will require you to understand your customer's operational needs and to be responsive and proactive when addressing those needs.
  • Flexible. You will need to adapt and adjust your work schedule to meet changing conditions or emergencies.
  • Organized and Results Driven. You will need to be organized and shows a high level of care and thoroughness in handling assignments.
  • Dependable. Your assigned unit will rely on you for support.
  • Able to Personify Integrity. You will be an important part in maintaining WCW's culture of transparency and accountability, open to continuous improvement.

What you will typically be responsible for:

  • Performing semi-skilled and skilled installation, maintenance and repairs of all WCW facilities machinery and equipment.
  • Operating various treatment plant tools, vehicles, and stationery machinery.
  • Installing, maintaining, troubleshooting, and repairing electrical, control system, and instrumentation systems.
  • Interpreting technical documentation, such as layouts, blueprints, and schematics.
  • Maintaining records and preparing clear and concise written and oral reports of work performed.
  • Performing preventive maintenance on all buildings, grounds, equipment, and systems.

A few reasons you might love this job:

  • Every day brings a variety of work and opportunities to make a difference with the potential to impact the delivery of important public services.
  • You will work in a dynamic department with opportunities to excel and grow.
  • You will have the ability to be innovative and creative in designing and implementing new programs, processes, and tools.

A few challenges you might face in this job:

  • Your work will have a direct impact on the agency's ability to provide important public services.
  • You will work in a dynamic department with opportunities to excel.
  • You will be working with a highly skilled and knowledgeable team
  • You will participate in an on-call rotation and may be required to respond to emergencies or urgent maintenance and instrumentation issues outside of regular working hours.

Competencies Desired:

  • Attention to Detail: Focusing on the details of work content, work steps, and final work products
  • Legal & Regulatory Navigation: Understanding and adhering to established safety standards, building codes and regulations
  • Adaptability- Responding positively to change and modifying behavior as the situation requires
  • Oral Communication: Engaging effectively in dialogue
  • Writing: Communicating effectively in writing
  • Teamwork: Collaborating with others to achieve shared goals
  • Professional Impact: Presenting self as a positive representative of the organization
  • Self-Management: Showing personal organization, self-discipline, and dependability
  • Professional Integrity & Ethics: Displaying honesty, adherence to principles, and personal accountability

Essential Duties

Duties may include, but are not limited to, the following:

  • Lead and participate in inspection, troubleshooting, maintenance, repair, replacement and overhaul of pumps, compressors, engines, generators, motors, switch gear, mechanical fixtures and equipment; control, electrical, drive and piping systems
  • Perform and lead preventive maintenance on all District-maintained buildings, grounds, equipment and systems
  • Perform and lead electrical, control system and instrumentation installation, maintenance, troubleshooting and repair
  • Fabricate and modify parts and structures from a variety of materials
  • Use a variety of hand and power tools, cutting and welding equipment and electrical testing equipment
  • Operate vehicles, heavy equipment and stationery machinery as required
  • Maintain records and logs of work performed
  • Make oral and written reports of work performed
  • Lead and train other personnel in mechanical, electrical, and control system maintenance work
  • Perform related duties as assigned

Minimum Qualifications

Any combination equivalent to experience and education that could likely provide the required knowledge and abilities would be qualifying. A typical way to obtain the knowledge and abilities would be:

Maintenance/Instrumentation Technician Experience Three years of experience in the repair and maintenance of mechanical, electrical and control equipment and systems common to a treatment plant or similar type facility. Education Equivalent to the completion of the twelfth grade supplemented by specialized training in the maintenance, installation and repair of major mechanical and electrical systems. LICENSE OR CERTIFICATE Possession of a Mechanical Technologist Grade I certificate issued by the California Water Environment Association within one year of appointment to the position. Possession of the Electrical/Instrumentation Technologist Grade I certificate issued by the California Water Environment Association within one year of appointment to the position. Possession of a valid California Driver's License. The incumbent must continue to meet all of the provisions of the Driving Policy as a condition of continued employment

Senior Maintenance/Instrumentation Technician Experience Five years of journey level experience in the repair and maintenance of mechanical, electrical and control equipment and systems common to a treatment plant or similar type facility. Education Equivalent to the completion of the twelfth grade supplemented by specialized training as required for certification. License and/or Certificate:

  • Possession of a Mechanical Technologist Grade III certificate issued by the California Water Environment Association. At a minimum, the certification shall be attained in the following manner:
    • Grade II certificate within eighteen months of appointment to position.
    • Grade III certificate within three years of appointment to position.
  • Possession of the Electrical/Instrumentation Technologist Grade III certificate issued by the California Water Environment Association. At a minimum, the certification shall be attained in the following manner:
    • Grade III certificate within two years of appointment to position.
  • Possession of a valid California Driver's License. The incumbent must continue to meet all of the provisions of the Driving Policy as a condition of continued employment.

Desirable Qualifications:

  • Great understanding of workplace safety protocols and programs
  • Experience working with a governmental agency or public utility
  • Experience working with a CMMS (computerized maintenance management system)
  • Experience maintaining wastewater treatment equipment or a similar industrial setting

Supplemental Information

Applicants interested in the Maintenance/Instrumentation Technician or Senior Maintenance/Instrumentation Technician position must apply at by November 9, 2026. Selection Process:

  1. Application Filing and Evaluation: Applicants must complete a supplemental questionnaire at the time of application; applications will be evaluated to determine which candidates will move forward in the next phase of the recruitment process.
  2. Oral Interview: Conducted by a qualifications Appraisal Panel, which will evaluate candidates in job-related areas.

Tentative Test Dates:

West County Wastewater
Vacancy posted 10 hours ago
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