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.

Salary: $46.59 - $56.64 Hourly

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 Senior Mechanic (Mechanical Maintenance).

Under general supervision, troubleshoots, services, and performs increasingly complex preventative and corrective maintenance and repairs on, and rebuilds equipment, vehicles, and machinery found in wastewater treatment plants, collection systems, pumping stations, and related facilities and infrastructure; cleans sewer lines, manholes, and wet wells; ensures high-precision, millwright craftsmanship work quality; operates and maintains specialized industry tools and various hand and power tools and equipment; oversees and directs work of staff during confined space entry or special projects as assigned; and performs duties as assigned.

Specifically, this person will be able to work independently; communicate clearly and concisely, both verbally and in writing; adhere to established policies and procedures; perform technical tasks utilizing specialized industry techniques and tools (e.g. calipers, verniers, micrometers, torque wrenches) relative to the assigned area of responsibility; and establish and maintain effective working relationships with those contacted during work. This person will be part of a team that performs high-precision millwright craftsmanship work quality.

When assigned to Field Maintenance:

Performs increasingly complex mechanical maintenance work on process equipment in the plant, including boilers, pumps, mobile and stationary engines, air and gas compressors, evaporators, scrubbers, blowers, centrifuges, bar screens, augers, hydraulic systems, and conveyor belts.
Performs a variety of increasingly complex technical duties in the preventative and corrective maintenance, repair, service, troubleshooting, and rebuilding of equipment and machinery found in wastewater treatment plants, collection systems, pumping stations, and related facilities.
Performs preventive mechanical maintenance by inspecting and cleaning equipment; and performs corrective mechanical maintenance by troubleshooting cause of malfunction using visual inspection and precision measuring and testing instruments and replacing or repairing broken parts such as gauges, gaskets, plugs, coils, wires, bearings, drive lines, valves, pistons, rings, crankshafts and pumps.
Performs rounds and inspects power plant and gas compressors; monitors power generation and general operations to ensure proper working conditions by monitoring, inspecting, overhauling, maintaining, and troubleshooting internal combustion engines, steam turbine generators, energy steam systems, and auxiliary and safety equipment such as pumps, compressors, centrifuges, engine turbo, engine heads, heat exchangers, catalytic converters, fans, valves, filters, equipment drives, and motors; identifies complex problems and troubleshoots issues and/or refers to appropriate supervisor.
Initiates and completes documentation for confined space entry procedures; may oversee and direct work of staff during a confined space entry or special project requiring a team to complete the task; reads schematic drawings to determine location and layout of equipment.
Performs isolations, shut-downs, tag-outs, and start-ups of pump station operation equipment before and after testing and emergency repairs are performed.
Completes and logs written and/or electronic daily work sheets and service sheets; reviews equipment service logs for previous comments or repairs on equipment; takes photographs to document equipment condition and maintenance and repair; completes work orders for malfunctions identified during routine maintenance inspections; maintains all records.
Reads and interprets schematic drawings to determine location and layout of equipment; creates blueprints and schematics as required to assist in all facets of repair.

Qualifications & Requirements

The successful candidate will possess:

High school diploma or G.E.D. supplemented by specialized training such as relevant trade school in the areas of mechanical equipment maintenance and repair.
Three (3) years of increasingly responsible experience applying preventive and corrective mechanical maintenance skills on related wastewater plant equipment as well as analyzing mechanical systems and processes.
Valid California Class C Driver’s License.

Recruitment & Selection Process

Vacancies: 2
(an eligible list may be established for future vacancies)

Apply online at: www.ocsan.gov/careers

APPLICATION FILING DEADLINE: Monday, July 21st, 2025, 5:00 P.M.
(or until a sufficient number of qualified applications have been received)

Hiring Salary Range: $46.59 - $51.39/Hour
(starting salary will be within this range based upon qualifications)

Supplemental Information

PHYSICAL DEMANDS

Mobility to work in the field; to sit, stand, and walk on level, uneven, or slippery surfaces; frequently reach, twist, turn, kneel, bend, stoop, squat, crouch, grasp, and make repetitive hand movement in the performance of daily duties; to climb and descend ladders, to operate varied hand and power tools and equipment, and to operate a motor vehicle and visit various OC San sites, projects, and/or meetings.
Perform moderate to heavy physical work; to lift, carry, push, and pull materials and objects averaging a weight of 51 pounds or heavier weights, in all cases with the use of proper equipment and/or assistance from other staff.
Work requires entry into confined spaces and the use of confined entry equipment and protective safety equipment.
Vision to inspect and operate equipment.
Field work requiring frequent walking in operational areas to identify problems or hazards.
Finger dexterity to operate and repair tools and equipment.

ENVIRONMENTAL ELEMENTS

Field work in and around facilities with exposure to loud noise levels, cold and hot temperatures, inclement weather conditions, road hazards, vibration, confining workspace, heights, 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 REQUIRMENTS

May be required to work extended hours, including nights, weekends, and holidays when necessary.
Standby and Call Back: Employees in this classification may be required to participate in standby duty and are subject to call back, which may include nights, weekends and 24-hour emergency call out with little or no notice. Any employee designated to serve on standby, or report to an emergency, and refuses to do such, shall be subject to disciplinary action up to and including termination.
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 Orange County Sanitation District employees are designated Disaster Service Workers through state law (California Government Code Section 3100-3109). Employment with the Orange County Sanitation District 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 (Download PDF reader).

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.

Orange County Sanitation District

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Senior Mechanic (Mechanical Maintenance)