Orange County Sanitation District
Senior Mechanic (Mechanical Maintenance)
Orange County Sanitation District, California, Missouri, United States, 65018
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 resonate with you, we invite you to explore our career opportunities further.
Core Values
Integrity, Inclusion, Honesty, and Respect
Leadership, Teamwork, and Problem Solving
Customer Service, Transparency, and Accountability
Resiliency, Innovation, and Learning
Safety
OC San is currently looking to fill the role of a
Senior Mechanic (Mechanical Maintenance) .
Under general supervision, this role involves troubleshooting, servicing, and performing increasingly complex preventative and corrective maintenance and repairs on equipment, vehicles, and machinery found in wastewater treatment plants, collection systems, pumping stations, and related facilities. Responsibilities include cleaning sewer lines, manholes, and wet wells; ensuring high‑precision millwright craftsmanship; operating and maintaining specialized industry tools and hand and power tools; and overseeing staff during confined space entry or special projects.
This position requires the ability to work independently, communicate clearly and concisely both verbally and in writing, adhere to established policies and procedures, perform technical tasks using specialized tools (e.g., calipers, verniers, micrometers, torque wrenches), and establish effective working relationships with coworkers.
When Assigned to Field Maintenance:
Perform increasingly complex mechanical maintenance on process equipment, including boilers, pumps, engines, compressors, evaporators, scrubbers, blowers, centrifuges, bar screens, augers, hydraulic systems, and conveyor belts.
Carry out preventive and corrective maintenance, repair, service, troubleshooting, and rebuilding of equipment and machinery.
Inspect and clean equipment for preventive maintenance; diagnose malfunctions with visual inspection and precision instruments; replace or repair components such as gauges, gaskets, plugs, coils, wires, bearings, drive lines, valves, pistons, rings, crankshafts, and pumps.
Rebuild equipment by disassembling, cleaning, repairing, reassembling, installing, and testing to ensure proper working condition.
Initiate and complete documentation for confined space entry procedures; oversee staff during confined space or special projects; read schematic drawings to determine equipment location and layout.
Perform isolations, shut‑downs, tag‑outs, and start‑ups of pump station equipment before and after testing and emergency repairs.
Complete and log written and/or electronic daily work sheets and service sheets; review service logs; take photographs to document condition and maintenance; complete work orders for identified malfunctions; maintain records.
Read and interpret schematic drawings; create blueprints and schematics as needed to assist in repair.
The Successful Candidate Will Possess:
High school diploma or G.E.D. supplemented by specialized training such as trade school in mechanical equipment maintenance and repair.
Three (3) years of increasingly responsible experience applying preventive and corrective mechanical maintenance skills on wastewater plant equipment, analyzing mechanical systems and processes.
Valid California Class C Driver’s License.
Vacancies: 2
(an eligible list may be established for future vacancies)
Apply online at: www.ocsan.gov/careers
Application Filing Deadline:
Thursday, February 5, 2026; 5:00 P.M. (or until a sufficient number of qualified applications have been received)
Hiring Salary Range:
$48.69 - $53.70 per hour (starting salary will be within this range based upon qualifications)
Physical Demands
Mobility to work in the field; sit, stand, walk on level, uneven, or slippery surfaces; frequently reach, twist, turn, kneel, bend, stoop, squat, crouch, grasp, and perform repetitive hand movements.
Climb and descend ladders; operate varied hand and power tools and equipment; operate a motor vehicle and visit various OC San sites, projects, or meetings.
Perform moderate to heavy physical work; lift, carry, push, and pull materials averaging 51 pounds or heavier with proper equipment or assistance.
Entry into confined spaces and use of confined entry equipment and protective safety gear.
Vision to inspect and operate equipment.
Field work requiring frequent walking in operational areas to identify problems or hazards.
Finger dexterity for operating and repairing tools and equipment.
Environmental Elements
Field work in and around facilities exposing individuals to loud noise, cold and hot temperatures, inclement weather, road hazards, vibration, confined workspace, heights, chemicals, mechanical and/or electrical hazards, hazardous physical substances, fumes, dust, and air contaminants.
Employees may interact with upset staff and/or public and private representatives when interpreting and enforcing departmental policies and procedures.
Other Requirements
May be required to work extended hours, including nights, weekends, and holidays.
Standby and Call Back: Employees may be required to participate in standby duty and are subject to call back, including nights, weekends, and 24‑hour emergency call out with little or no notice. Refusal may result in disciplinary action up to and including termination.
Probationary Period: All OC San employees, except at‑will classifications, are subject to the probationary period provisions as specified in the applicable memoranda or resolutions. Employees who have not completed their initial probationary period are at‑will and may be released without cause.
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 any OC San location and may change 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 requires the affirmation of a loyalty oath. 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 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. 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
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. 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.
#J-18808-Ljbffr
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 resonate with you, we invite you to explore our career opportunities further.
Core Values
Integrity, Inclusion, Honesty, and Respect
Leadership, Teamwork, and Problem Solving
Customer Service, Transparency, and Accountability
Resiliency, Innovation, and Learning
Safety
OC San is currently looking to fill the role of a
Senior Mechanic (Mechanical Maintenance) .
Under general supervision, this role involves troubleshooting, servicing, and performing increasingly complex preventative and corrective maintenance and repairs on equipment, vehicles, and machinery found in wastewater treatment plants, collection systems, pumping stations, and related facilities. Responsibilities include cleaning sewer lines, manholes, and wet wells; ensuring high‑precision millwright craftsmanship; operating and maintaining specialized industry tools and hand and power tools; and overseeing staff during confined space entry or special projects.
This position requires the ability to work independently, communicate clearly and concisely both verbally and in writing, adhere to established policies and procedures, perform technical tasks using specialized tools (e.g., calipers, verniers, micrometers, torque wrenches), and establish effective working relationships with coworkers.
When Assigned to Field Maintenance:
Perform increasingly complex mechanical maintenance on process equipment, including boilers, pumps, engines, compressors, evaporators, scrubbers, blowers, centrifuges, bar screens, augers, hydraulic systems, and conveyor belts.
Carry out preventive and corrective maintenance, repair, service, troubleshooting, and rebuilding of equipment and machinery.
Inspect and clean equipment for preventive maintenance; diagnose malfunctions with visual inspection and precision instruments; replace or repair components such as gauges, gaskets, plugs, coils, wires, bearings, drive lines, valves, pistons, rings, crankshafts, and pumps.
Rebuild equipment by disassembling, cleaning, repairing, reassembling, installing, and testing to ensure proper working condition.
Initiate and complete documentation for confined space entry procedures; oversee staff during confined space or special projects; read schematic drawings to determine equipment location and layout.
Perform isolations, shut‑downs, tag‑outs, and start‑ups of pump station equipment before and after testing and emergency repairs.
Complete and log written and/or electronic daily work sheets and service sheets; review service logs; take photographs to document condition and maintenance; complete work orders for identified malfunctions; maintain records.
Read and interpret schematic drawings; create blueprints and schematics as needed to assist in repair.
The Successful Candidate Will Possess:
High school diploma or G.E.D. supplemented by specialized training such as trade school in mechanical equipment maintenance and repair.
Three (3) years of increasingly responsible experience applying preventive and corrective mechanical maintenance skills on wastewater plant equipment, analyzing mechanical systems and processes.
Valid California Class C Driver’s License.
Vacancies: 2
(an eligible list may be established for future vacancies)
Apply online at: www.ocsan.gov/careers
Application Filing Deadline:
Thursday, February 5, 2026; 5:00 P.M. (or until a sufficient number of qualified applications have been received)
Hiring Salary Range:
$48.69 - $53.70 per hour (starting salary will be within this range based upon qualifications)
Physical Demands
Mobility to work in the field; sit, stand, walk on level, uneven, or slippery surfaces; frequently reach, twist, turn, kneel, bend, stoop, squat, crouch, grasp, and perform repetitive hand movements.
Climb and descend ladders; operate varied hand and power tools and equipment; operate a motor vehicle and visit various OC San sites, projects, or meetings.
Perform moderate to heavy physical work; lift, carry, push, and pull materials averaging 51 pounds or heavier with proper equipment or assistance.
Entry into confined spaces and use of confined entry equipment and protective safety gear.
Vision to inspect and operate equipment.
Field work requiring frequent walking in operational areas to identify problems or hazards.
Finger dexterity for operating and repairing tools and equipment.
Environmental Elements
Field work in and around facilities exposing individuals to loud noise, cold and hot temperatures, inclement weather, road hazards, vibration, confined workspace, heights, chemicals, mechanical and/or electrical hazards, hazardous physical substances, fumes, dust, and air contaminants.
Employees may interact with upset staff and/or public and private representatives when interpreting and enforcing departmental policies and procedures.
Other Requirements
May be required to work extended hours, including nights, weekends, and holidays.
Standby and Call Back: Employees may be required to participate in standby duty and are subject to call back, including nights, weekends, and 24‑hour emergency call out with little or no notice. Refusal may result in disciplinary action up to and including termination.
Probationary Period: All OC San employees, except at‑will classifications, are subject to the probationary period provisions as specified in the applicable memoranda or resolutions. Employees who have not completed their initial probationary period are at‑will and may be released without cause.
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 any OC San location and may change 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 requires the affirmation of a loyalty oath. 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 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. 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
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. 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.
#J-18808-Ljbffr