Maintenance Supervisor (Reliability Maintenance)

Orange County Sanitation District; Fountain Valley (CA); On-site; USD 149,000 - 164,000; Full time

Job summary

Orange County Sanitation District seeks a Maintenance Supervisor (Reliability Maintenance) to lead staff across maintenance programs for treatment plants and related facilities. You will ensure compliance with laws and policies, while driving predictive and preventive strategies for asset performance.

You may need to coordinate with engineering and design teams and manage complex equipment and fleets. Strong leadership, project oversight, and maintenance expertise are essential for success.

Qualifications

• High school diploma or GED plus 60 semester units in a related field.
• Six years of progressive maintenance/ facilities experience with possible 2 years of lead or supervisory experience.
• Valid California Class C Driver’s License.
• Possess or obtain within 12 months one or more professional maintenance certifications as listed.

Responsibilities

• Supervise and assign maintenance staff for reliability and preventive maintenance programs.
• Oversee field testing, ensure equipment meets design specs and operates reliably.
• Plan, prioritize, and manage staff working on reliability maintenance initiatives.

Skills

Leadership

Supervisory experience

Analytical thinking

Maintenance planning

Education

High school diploma or GED with 60 college units

Tools

Certifications (CMRP/CMRT/MMC/CAFM/CMC/RCM)

California Water Environment Association Grade IV

Hazardous materials endorsement (if applicable)

Job description

What do you value in your next job? At the Orange County Sanitation District our Core Values form the framework of our organization and reinforce our professional work ethic. If the following values ring true with you, we'd love to invite you to explore our career opportunities further.

Integrity, Inclusion, Honesty, and Respect

We aspire to the highest degree of integrity, inclusion, honesty, and respect in our interaction with each other, our suppliers, our customers, and our community. We strive to demonstrate these values in our actions, commitments, and service.

Leadership, Teamwork, and Problem Solving

We lead by example, acknowledging the value of our resources and using them wisely to achieve our mission. We strive to reach OC San goals through cooperative efforts and collaboration with each other and our constituencies. We work to solve problems in a creative, cost-effective, and safe manner, and we acknowledge team and individual efforts.

Customer Service, Transparency, and Accountability

We are committed to acting in a timely, accurate, accessible, and transparent manner through excellent customer service. We are committed to act in the best interest of our internal and external stakeholders.

Resiliency, Innovation, and Learning

We continuously develop ourselves, enhancing our talents, skills, and abilities. We recognize that only through personal growth and development will we progress as an agency and as individuals.

Safety

We are committed to providing a safe work environment. We will demonstrate leadership, promote individual accountability, and participate actively in the advancement of our health and safety practices.

OC San is currently looking to fill the role of a Maintenance Supervisor (Reliability Maintenance).

Under direction, supervises, assigns, reviews, and participates in the work of staff responsible for comprehensive OC San maintenance and repair programs, including treatment plant and recycled water equipment and related facilities, fleet, energy co‑generation, wastewater collections, and/or mechanical, electrical, and instrumentation systems; ensures division operations and maintenance functions meet all applicable laws, regulations, and OC San policies; provides complex staff assistance to OC San management in areas of expertise; performs the most technical and complex tasks relative to assigned areas of responsibility; and performs duties as assigned.

When assigned to Reliability Maintenance:

• Plans, prioritizes, assigns, supervises, reviews, and participates in the work of staff responsible for reliability maintenance; performs research, conducts field studies, and analyzes data to develop and implement predictive and preventative maintenance strategies, including condition‑ and risk‑based maintenance to maximize asset performance and lifecycle, minimize operational disruptions, and ensure operational effectiveness.
• Oversees and participates in factory and site acceptance testing for rotating equipment; identifies potential issues and ensures equipment meets design specifications and performs reliably prior to construction and installation.

Required:

1. High school diploma or G.E.D. supplemented by specialized training or 60 semester units of coursework from a college or university accredited by the U.S. Department of Education, in construction, business or public administration, maintenance management, or a related field.

2. Six (6) years of progressively responsible work experience in one of the following areas of assignment: pipes and plant facilities, wastewater collection systems, mechanical equipment, facilities maintenance, fleet and heavy equipment, energy co‑generation facilities and equipment, preventative maintenance, and/or electrical distribution or instrumentation systems, which may include two (2) years of lead or supervisory experience.

3. A valid California Class C Driver’s License.

4. Depending on assignment, must possess or obtain within 12 months of placement in position a:

• Valid Grade IV Certification from the California Water Environment Association appropriate to area of assignment as determined by OC San; and/or
• Valid Certified Maintenance and Reliability Professional (CMRP) and/or valid Certified Maintenance and Reliability Technician (CMRT) from the Society of Maintenance and Reliability Professionals (SMRP); and/or valid Maintenance Management Certification (MMC) from Life Cycle Engineering; and/or Certified Automotive Fleet Manager (CAFM) from National Automotive Fleet Association (NAFA); and/or Certified Building Operator (CBO) from the Building Operator Certification entity; and/or Certified Reliability Leader from Reliability Web; or other similar professional maintenance certification as deemed comparable by OC San; and/or
• Valid hazardous materials endorsement; and a valid manual transmission endorsement.

Desired:

• Valid Vibration Analysis, Ultrasound, Motor Circuit Analysis, Infrared, and/or Oil Analysis Certifications.
• Understanding of Reliability Maintenance principles and best practices, including Reliability‑Centered Maintenance (RCM), Root Cause Failure Analysis (RCFA), and Failure Mode and Effects Analysis (FMEA) methodologies, applied in an industrial environment.
• Experience preparing and administering program budgets.
• Experience working with Engineering and Design staff.

Vacancies: 1

(an eligible list may be established for future vacancies)

APPLICATION FILING DEADLINE: Tuesday, December 1, 2026 by 5:00 PM.

(or until a sufficient number of qualified applications have been received)

Hiring Salary Range: $148,928.00 - $164,174.40/Year (starting salary will be within this range based upon qualifications)

Physical Demands

• Mobility to work in a standard office setting and use standard office equipment, including a computer; to operate a motor vehicle and visit various OC San sites, projects, and/or meetings; primarily a sedentary office classification although standing in work areas and walking between work areas may be required; occasionally bend, stoop, kneel, reach, push, and pull drawers open and closed to retrieve and file information; ability to lift, carry, push, and pull materials and objects up to 10 pounds.
• Mobility to work in changing site conditions; to sit, stand, and walk on level, uneven, or slippery surfaces; to reach, twist, turn, kneel, and bend, to climb and descend ladders.
• Perform moderate to medium physical work; lift, carry, push, and pull materials and objects up to a weight of 51 pounds, or heavier weights, in all cases with the use of proper equipment and/or assistance from other staff.
• Vision to read printed materials and a computer screen.
• Vision to inspect site conditions and work in progress.
• Hearing and speech to communicate in person and over the telephone.
• Finger dexterity is needed to access, enter, and retrieve data using a computer keyboard or calculator and to operate standard office equipment.
• Field work requiring frequent walking in operational areas to identify problems or hazards with exposure to hazardous materials in some site locations.

Environmental Elements

• Office environment with moderate noise levels, controlled temperature conditions, and no direct exposure to hazardous physical substances.
• Field work with exposure to loud noise levels, cold and hot temperatures, inclement weather conditions, road hazards, vibration, confining workspace, chemicals, mechanical and/or electrical hazards, hazardous physical substances and fumes, dust, and air contaminants.
• Employees may interact with upset staff and/or public and private representatives in interpreting and enforcing departmental policies and procedures.

Other Requirements

• May be required to work extended hours, including nights, weekends, and holidays when necessary.
• Probationary Period: All OC San employees, except classifications considered “at‑will”, are subject to the probationary period provisions as specified in the applicable Memorandum of Understanding, policies, and/or resolutions. Employees who have not yet successfully completed their initial probationary period serve “at‑will” and may be released from employment without cause or recourse to any appeal or grievance procedures.
• Pre‑Employment: All employment offers are contingent upon successful completion of OC San’s pre employment process, which includes a background investigation, a physical examination, and a drug screen.
• Work Location Assignment: Employees will be assigned to a work location based on business needs which may be located at any/all of OC San locations; this work location may be changed at any time.

Disaster Service Workers

All OC San employees are designated Disaster Service Workers through state law (California Government Code Section 3100‑3109). Employment with the OC San requires the affirmation of a loyalty oath to this effect. Employees are required to complete all related training as assigned, and to return to work as ordered in the event of an emergency.

Other Information

For the full range of duties, responsibilities, and essential job functions please review the Classification Specification for this position found on our website.

Applicants must clearly demonstrate, through their application materials, that they meet the minimum requirements as outlined in the job announcement and class specification to receive further consideration. However, meeting the minimum requirements does not guarantee an interview. All properly completed applications will be reviewed, and the most appropriately qualified individuals will be invited to continue in the selection process.

False statements may be cause for disqualification, removal from the eligible list, or discharge from employment. All statements made on applications are subject to investigation and verification.

To ensure your application is accurate and complete, please review the Job Application Guide.

Employment is contingent upon successful completion of OC San’s pre‑employment process, which includes a background investigation and a physical examination. For some positions, this may include a drug screen. False statements may be cause for disqualification, removal from the eligible list, or discharge from employment. All statements made on applications are subject to investigation and verification.

Reference Checks will be conducted by OC San to verify employment related information for all potential employees once a contingent job offer is made during the background investigation process. This is done to ensure that individuals who join OC San are well qualified and have a strong potential to be successful in their employment. The extent of the inquiry will depend on the position being applied for, but will at least include:

• Verification/Reference from current and past employers
• Confirmation of necessary licenses, certificates, and degrees.

Please have all necessary documentation ready. Additional inquiries may be necessary depending on the position for which you are applying. Human Resources will also schedule a post‑offer physical examination once a job offer has been made.

OC San only accepts applications submitted via our online application system. Applications submitted via mail, fax or email will not be accepted.

The provisions of this announcement do not constitute an expressed or implied contract. Any provision contained in this announcement may be modified or revoked without notice.