Search Jobs

Step into a role where your technical skills help keep the City running.

As an Instrumentation Technician, you’ll install, troubleshoot, and maintain the instrumentation and control systems that support our wastewater treatment operations. Your work helps ensure safe and reliable service for the community.

If you enjoy hands‑on problem‑solving and working with advanced equipment, this role offers the chance to make a meaningful impact every day!

                                       POSITION DETAILS:

• Salary range: $36.88 - $47.07 + Excellent Benefits
• Salary Increases:
  • 3% Cost of Living adjustment increase effective 7/13/26
  • 3% Cost of Living adjustment increase effective 7/12/27
    • Salary placement is generally at the beginning of the range.
    • Advanced placement may be considered based on related education and experience.
    • NOTE: The City recently completed a compensation study comparing its salary ranges with those of other local agencies. As a result, 87% of salary ranges will be adjusted upward at various intervals. As ranges are adjusted, job postings will be updated to reflect these changes.
• Status: Regular, Full-Time position
• Work schedule: 9/80 schedule with every other Monday or Friday off.

                                MINIMUM QUALIFICATIONS:

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

Education:

• Equivalent to the completion of the twelfth grade supplemented by college level course work in electronics or a related field.

Experience:

• Two years of increasingly responsible experience in the maintenance, repair, fabrication and installation of instrumentation systems in a wastewater treatment system, water distribution, water processing, or other industrial process control environment.

                                        JOB DESCRIPTION:

                                                                          Instrumentation Technician

                                       WHY SIMI VALLEY?

Looking for a thriving community with amazing career opportunities and a high quality of life? Simi Valley has it all! From scenic landscapes to a welcoming atmosphere, it's the perfect place to live and work.

CLICK HERE to check out our exclusive video to see what makes Simi Valley so special—whether you're looking for a rewarding career or just an incredible place to call home, you won’t want to miss it!

                                        IDEAL CANDIDATE:

The ideal candidate will possess the following qualities and abilities:

• Knowledge of instrumentation and control systems, including installation, calibration, troubleshooting, and repair
• Strong understanding of SCADA systems, telemetry, electronics, and industrial process controls
• Ability to read and interpret technical documentation, such as schematics, blueprints, wiring diagrams, and manuals
• Knowledge of designing, modifying, and fabricating instrumentation components and control circuits
• Ability to perform precise calibration and alignment of sensors, transmitters, pressure gauges, and monitoring equipment
• Knowledge of electrical codes, safety standards, and lockout/tagout procedures to ensure safe work practices
• Knowledge of computer systems and software, including data logging, configuration tools, and control interfaces
• Strong record‑keeping skills to maintain accurate logs, maintenance records, and reports
• Ability to collaborate with operators, engineers, contractors, and vendors
• Ability to adapt to new technologies
• Knowledge of hydraulics, pneumatics, level & flow sensors, and mechanical systems used in treatment operations

                                               BENEFITS:

We’re proud to offer a comprehensive and competitive benefits package that supports your health, financial well-being, and professional growth—because we believe taking care of our team is essential to serving our community.

Health & Wellness

• Medical Coverage: 100% City-paid premiums for most plans, including family coverage
• Dental & Vision: Fully covered dental (Delta Dental) and vision (VSP) plans
  • Family coverage fully covers dental and vision
• Prescription Drug Plan: Access to major retail and mail-order options
• Flexible Spending Account (FSA): Pre-tax savings for health and dependent care expenses
• Employee Assistance Program (EAP): Up to 8 free confidential consultations for employees and household members

Retirement & Financial Planning

• CalPERS Pension:
  • 2% @ 55 formula for “Classic” members (single highest year final compensation for individuals enrolled in CalPERS prior to 1/1/2013)
  • 2% @ 62 formula for “New” members (three year average final compensation for individuals enrolled in CalPERS after 1/1/2013)
  • 4th Level Survivor Benefit included
• Deferred Compensation:
  • 401(k) and 457 plans with Roth options
  • City matches up to $75 per paycheck to 457
  • City contribution of $30 per paycheck to 457
• Note: The City does not participate in Social Security; no FICA deduction except Medicare hospital insurance

Paid Leave & Holidays

• Annual Leave (AL):
  • 5.2 weeks/year to start (vacation + sick combined)
  • Increases at 5 and 10 years of service
  • Cash-out option available after one year
• Holidays:
  • 11 paid holidays + 1 floating holiday annually

Professional Development

• Tuition Reimbursement:
  • Up to $1,800/year

Insurance Coverage

• Life Insurance:
  • $101,000 employee coverage fully covered
  • $5,000 dependent coverage fully covered
• Optional AFLAC Plans:
  • Accident, cancer, hospital, and critical care coverage available

We also host a full calendar of employee appreciation events and activities to celebrate the incredible work our team does year-round.

This information is intended to give an overview of the benefits available to City employees. It is not intended to be a contract (expressed or implied), nor is it intended to otherwise create any legally enforceable obligations on the part of the City, its agents or its employees.

                                  SPECIAL INSTRUCTIONS:

Click apply and attach a current resume! You only need to complete the boxes on the application marked with a star/asterisk (*) and the supplemental questionnaire. 

Applications are reviewed on a rolling basis. Recruitment may close at any time or when 50 applications are received. First official review of applications after May 8th, 2026. Candidates who possess the best combination of qualifications will be invited by e-mail to the next steps in our process.

                                     SELECTION PROCESS: 

• Applications will be evaluated based on education, training, and experience as it relates to the position
• Candidates who possess the best combination of qualifications will be evaluated by their responses to the supplemental questions. During the assessment process, the rater(s) will not have access to your name, application or resume. You are solely evaluated on your supplemental responses, so please be detailed as possible. 
• The eligibility list for hire will be determined by the supplemental questions. 
• Additional testing such a written, oral panel interviews, and department level interviews may occur.
• Applicants seeking Veteran’s Preference must submit form DD214 with application.

*ALL OFFERS OF EMPLOYMENT ARE CONTINGENT UPON THE FOLLOWING:

• Passing a background investigation
• Passing a pre-employment physical and/or drug screen, if applicable 
• Providing (3) professional references, including (1) direct supervisor
• Providing copies of degree(s), training certifications/licenses listed on application/resume
• 5-year Verification of employment 

                         REASONABLE ACCOMMODATION:

In compliance with the Americans with Disabilities Act, if you need special assistance in the selection process, please notify the Human Resources Division, in writing.

City of Simi Valley is an Equal Opportunity Employer Encouraging Workforce Diversity.

STREET MAINTENANCE OPERATOR I/II

Closes May 17th 2026 or 100 applicants (whichever occurs first)

A completed online employment application 

Incomplete or late applications will NOT be accepted.

Resumes will NOT be considered in lieu of the required employment application.

STREET MAINTENANCE OPERATOR I   $3,645 - $4,430 MONTHLY - PAID BI-WEEKLY, STARTING AT $21.03 PER HOUR

STREET MAINTENANCE OPERATOR II  $4,023 - $4,891 MONTHLY - PAID BI-WEEKLY, STARTING AT $23.20 PER HOUR

SUMMARY DESCRIPTION

Under immediate supervision (Street Maintenance Operator I) or general supervision (Street Maintenance Operator II), performs semi-skilled to skilled maintenance, repair, and construction work assigned to the streets division; operates maintenance and construction tools and equipment; performs a variety of maintenance tasks relative to assigned area of responsibility.

DISTINGUISHING CHARACTERISTICS

Street Maintenance Operator I: This is the entry level class in the Street Maintenance Operator series. This class is distinguished from the Street Maintenance Operator II by the performance of the more routine tasks and duties assigned to workers in this series. Employees at this level are not expected to perform with the same independence of direction and judgment on matters related to established procedures and guidelines as are positions allocated to the II level. Since this class is typically used as a training class, employees may have only limited or non directly related work experience. Employees work under immediate supervision while learning job tasks.

Street Maintenance Operator II: This is the full journey level class within the Street Maintenance Operator series. This class is distinguished from the Street Maintenance Operator I by the assignment of the full range of duties assigned. Employees at this level receive only occasional instruction or assistance as new or unusual situations arise, and are fully aware of the operating procedures and policies within the work unit. Positions in this class are flexibly staffed and are normally filled by advancement from the I level.

REPRESENTATIVE DUTIES

The following duties are typical for this classification. Incumbents may not perform all of the listed duties and/or may be required to perform additional or different duties from those set forth below to address business needs and changing business practices.

1. Handle complaints and answer questions from the public.

2. Perform general electrical, painting, plumbing and carpentry work as needed.

3. Make minor adjustments on service equipment; maintain tools and equipment in working order.

4. Oversee the work of community service workers.

5. Maintain logs of daily activities.

6. Assist in other areas as needed.

7. Perform related duties as required.

8. Repair and replace street surfaces, sidewalks, curbs, and gutters including back filling trenches and evacuations.

9. Perform the maintenance, repair, construction, and installation work of streets, storm drain, parking lots, street lights, traffic striping, and traffic control signs and signals.

10. Remove hazards from the roadway and other public rights of way.

11. Operate a variety of motorized equipment and specialized maintenance equipment.

12. Perform repaving, patching, overlaying, chuck hole, and crack sealing repair of asphalt.

13. Perform underground service alert locating, marking and notification.

14. Lay out and install traffic signs and pavement markings.

15. Repair and maintain storm drain lift stations.

16. Conduct traffic count surveys.

17. Maintain storm detention ponds, including cleaning, repairing, and spraying weeds.

18. Respond to hazardous materials spills.

TO VIEW JOB ANNOUNCEMENT, CLICK JOB PDF OR JOB ANNOUNCEMENT URL BELOW.

TO VIEW JOB ANNOUNCEMENT, CLICK JOB PDF OR JOB ANNOUNCEMENT URL BELOW.

The City of Menlo Park is seeking a Public Works Supervisor - Trees in the Maintenance Division of the Public Works department. The Maintenance Division provides many of the basic services that affect the daily lives of everyone who lives, works, visits and commutes within the City. The Maintenance Division provides support to all City departments and provides service 24 hours a day, 365 days a year to address emergencies during non-working hours. The Maintenance Division is located in the City's Corporation Yard.

Under general direction, assists the City Arborist with overseeing the City’s tree maintenance, planting, inventory, risk management, and emergency response programs. Makes assessments of work needs and responds to citizens requesting city tree inspections and service. Directs the work of tree crews involved in the planting, pruning, and removal of city street, park, median, and plaza trees. Inspects quality and quantity of work and act as the City’s liaison between work crews and the public. Maintains accurate records of work and schedules and ensure compliance with specifications and regulatory requirements. Assists in the enforcement of the City’s Heritage Tree Ordinance.

A position in this class is characterized by having a substantial background in arboriculture in order to make sound technical tree-care related decisions and strong communication skills in order to interact effectively with the public, work crews, and other City staff. This classification is distinguished from the City Arborist role in that the Public Works Supervisor – Trees directly oversees the implementation of the city’s tree programs on the ground and supervises employees and contractors assigned to that program. The City Arborist role, on the other hand, involves responsibilities such as overall program management, budgetary management, review of development projects and heritage tree protection plans, and the authority to issue heritage tree permits. The Public Works Supervisor – Trees role is distinguished from all other City maintenance classes through the specialized arboriculture knowledge required and its responsibility for all phases of work performed by tree maintenance crews.

A job description, including examples of typical job functions and qualifying knowledge, skills, and abilities, is available by clicking on the Job Description link.

The City of San Mateo Public Works Department is seeking a Traffic and Lighting Technician

The Department

The Public Works Department is comprised of the Engineering and Facilities Services Division (EFSD) and the Environmental Services Division (ESD). Each division is led by a Deputy Director reporting to the Director of Public Works. The department is responsible for the City’s major capital projects and infrastructure including streets, street lights, traffic signals, sewer and storm conveyance systems, wastewater treatment plant, pump stations, a major lagoon, and dams and levees. A key player on this team is the Traffic and Lighting Technician. You would be joining over 500 people whose mission is to serve the San Mateo community with a collaborative, innovative and professional spirit.

Look to some of the reasons why the City of San Mateo is a great place to work: https://www.youtube.com/watch?v=_GTIzeSpc_g

The Position

The Traffic and Lighting Technician performs skilled electrical and mechanical work in the maintenance and repair of traffic control signage, traffic signal equipment, and street lights; and guides the work of and trains other maintenance personnel, and performs related work as required.  Duties may include, but are not limited to, the following:

• Guide and participate in the work of other maintenance personnel.  Ability to set-up work zone safety and prepare traffic control work plans.
• Inspect, install, remove, and repair signal controls and auxiliary equipment such as light standards, control boxes, light fixtures, lamps, and circuitry; diagnose malfunctions; adjust and replace electronic and mechanical components.
• Inspect, install, remove and repair street lights and auxiliary equipment.
• Repair, replace or modify electric and electronic components, controllers, relays, switches, fuses, timers and other parts; design and construct special test equipment for shop testing of electronic components.
• Investigate complaints and reports of signal and traffic light malfunctions; adjust, repair or remove defective equipment; make field repairs of damaged equipment.
• Identify, locate and indicate with appropriate identification markers underground utilities (USA); respond to USA work orders within regulatory requirements; and document services accordingly.
• Be available for standby assignments in accordance with Department policies and procedures.
• Assist in the design of electrical circuits and systems for street lighting and traffic signals.
• Inspect the work of contractors during the course of construction and upon completion.
• Monitor traffic control computer and make adjustments as necessary.

The Traffic and Lighting Technician receives general direction from the Field Maintenance Manager and direct supervision from a Public Works Supervisor or higher level department staff and may exercise technical or functional direction over and provide work review to a Traffic Safety Worker or Maintenance Worker I/II.

For a complete list of duties, reference our job specifications at https://www.cityofsanmateo.org/DocumentCenter/Home/Index/86

Recruitment is open until filled.

Performs a variety of unskilled or semi-skilled maintenance work, and operates a variety of equipment in the construction, operation, repair, maintenance and replacement of Town water, sewer, street and storm drainage facilities and systems.

ESSENTIAL DUTIES

Typical duties include but are not limited to:
•    Perform required labor involved in construction and maintenance projects as part of a crew, including pavement cutting, ditch digging, manhole and line cleaning, main and pipe repair, laying and backfilling.
•    Perform routine cleaning, inspection and preventive maintenance of equipment and refers defects or needed repairs to supervisor.
•    Performs all duties in conformance with appropriate safety and security standards.
•    Maintains Corporation Yard and other Town facilities.
•    Responds to residents' requests for service.
•    Maintains a variety of records relating to maintenance activity.
•    Assists in determining the locations of water, storm drain and sewer lines from the appropriate sources prior to excavation.
•    Drives trucks of various sizes and weights in the loading, hauling, and unloading of equipment and supplies.
•    Work in adverse weather conditions.

Possible 40 or more hours per week (Subject to change) up to total 960 hours of temporary employment.

City of Pacifica

Invites you to apply for the position of:

Part-Time Maintenance Assistant 

$19.00-$23.00 Hourly

THE OPPORTUNITY

The City of Pacifica is a beautiful coastal community, just south of San Francisco with an exciting opportunity. We are currently hiring for Maintenance Assistants to join our team. Under general supervision, Maintenance Assistants perform unskilled/semi-skilled labor and maintenance work. This recruitment is to fill a vacancy in our Wastewater Treatment Plant Division. If selected for our Wastewater Division, you will be working with our Collections division where they focus on conveying wastewater to the treatment plant by cleaning, inspecting, repairing, and other pipeline maintenance tasks.

At the City of Pacifica, we are an equal opportunity employer and value diversity. All aspects of employment including the decision to hire, promote, discipline, or discharge, will be based on merit, competence, performance, and business needs. To us, equal opportunity employment is not just about compliance, it’s about who you are, how you can help our City and who you want to be. We are committed to creating an inclusive environment for all employees and residents.

This is a part-time, at-will, non-benefited position. Hours are limited to less than 1,000 hours per year.

BASIC EXAMPLE OF DUTIES

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

• Perform a variety of unskilled/semi-skilled maintenance or custodial duties involving manual labor of facilities.
• Clean and inspect sewer facilities for vandalism or potential hazards.
• Sanitize surfaces, repair minor plumbing problems, diagnose basic sewer issues, replace components on fixtures.
• Maintain area(s) as assigned including pump stations of treatment plant, performing basic repairs, inspections and landscaping.
• Load and unload supplies and materials.
• Safely assist with various heavy pipe lines, cleaning equipment, and maintenance operations.
• Perform related duties as assigned.

Please refer to job description for additional information.

Applications are being accepted for the position of Public Works Maintenance Worker with the City of South San Francisco. This is a non-benefited, part-time/hourly position. 

APPLICATION DEADLINE: THIS IS A CONTINUOUS RECRUITMENT. IF INTERESTED, PLEASE APPLY IMMEDIATELY, AS RECRUITMENT MAY CLOSE AT ANY TIME.

Hourly Rate: $35.88- $43.61 per hour

The Department 

The Public Works department is comprised of the Maintenance, Engineering and WQCP (Water Quality Control Plant) divisions. The Maintenance Division is responsible for all of the asphalt and concrete streets within the City as well as all of the associated signalized intersections, streetlights, road signs and traffic markings.  The division also maintains the sanitary sewer/storm system which includes all of the sanitary sewer lines, all of the storm lines and catch basins, several storm water pump stations, as well as various large storm water trash capture devices throughout the City.

THE POSITION

Under close to general supervision, this hourly position is responsible for cleaning and maintaining the downtown corridor, including the removal of litter, debris, and illegal dumping. Duties are primarily driven by SeeClickFix service requests and may include other related maintenance and cleaning tasks as assigned.
 

IDEAL CANDIDATE 

The ideal candidate will have experience with outdoor maintenance work and be familiar with basic tools, equipment, and safety practices related to cleaning and debris removal in public spaces. They will take pride in keeping high-visibility areas clean and welcoming, respond promptly to service requests (such as those submitted through SeeClickFix), and interact professionally with the public and City staff. The ideal candidate will be reliable, self-motivated, and able to work independently or as part of a team, using sound judgment while following established safety procedures.

TYPICAL DUTIES (may include but are not limited to the following):

• Conduct daily cleaning and maintenance of the City’s downtown corridor, ensuring all public areas are free of litter and debris.
• Efficiently empty, clean and service all City owned trash receptacles, adhering to waste disposal and sanitation standards.
• Respond to requests for service in real time via smart device.
• Uses a variety of hand and power tools in connection with the above duties; operates light, motorized equipment, such as pick-ups, flatbeds, and dump trucks.
• Identify and report maintenance issues, safety hazards or vandalism during routine duties to appropriate City personnel.
• Performs related duties and responsibilities as assigned.

QUALIFICATIONS: Any combination of experience and training that would provide the required knowledge, skills, and abilities would be qualifying. A typical way to obtain the knowledge, skills, and abilities would be:

Experience: One year of experience in general construction or maintenance work.

Training: Equivalent to graduation from high school.

THE APPLICATION PROCESS:

To be considered, applicants must submit the following REQUIRED items:

• City application
• Responses to the supplemental questionnaire

NOTE: Applications must be filled out in their entirety. Failure to complete the application and/or supplemental questions or failure to include a required attachment will disqualify the applicant from the recruitment process. Failure to list work experience, education or training or indicating “see resume” in the work experience section of the application will be considered an incomplete application and subject to disqualification. Additionally, only the application materials and documents specifically requested within this job announcement will be accepted and considered. Any supplemental documents submitted that are not required will not be reviewed as part of the application process.

THE SELECTION PROCESS:

Applicants whose submitted application materials demonstrate knowledge, skills and abilities in best alignment with the required and desired qualifications of this position may be invited to an interview by the hiring department. 

SPECIAL INSTRUCTIONS

Prior to appointment, candidates will be required to submit to any or all of the following (as applicable:

1. Reference Check
2. SSF Background Check
3. Pre-Employment Medical Examination and Drug Screen

A conviction history will not necessarily disqualify an applicant from appointment. Determinations are made on a case-by-case basis with consideration given to the nature and recency of the conviction and relationship to job duties. All City standards must be met before the final appointment is made.

Candidates with a disability who may require special assistance in any phase of the recruitment process should advise the Human Resources Department upon submittal of application.  

The policy of the City of South San Francisco is to grant equal employment opportunity to all qualified persons without regard to race, color, sex, gender, age, religion, ancestry, physical or mental disability, sexual orientation, gender identity, gender expression, marital status or national origin.  It is the intent and desire of the City of South San Francisco that equal employment opportunity will be provided in recruiting, hiring, training, promoting, wages, benefits, and all other privileges, terms and conditions of employment.  The City of South San Francisco is an Equal Opportunity Employer (EOE).

DISCLAIMER: This general announcement does not constitute an express or implied contract and is subject to change. Any provisions contained within this announcement may be modified or revoked without notice.

Recruitment Contact

Contact phone: (650)877-8550

Contact email: Alex.Henry@ssfca.gov

The Department of Public Works is seeking well-qualified candidates for the position of Stationary Engineer II.

About the Department
The Department of Public Works plans, designs, constructs, operates, and maintains facilities and equipment that are safe and accessible to the clients of County agencies, the general public, and County employees. The Department advises the Board of Supervisors on all public works issues, including rates and charges for services that are fair to both the users and service providers.

Public Works has a budget of approximately $200 million and is comprised of over 300 employees in four divisions: Administrative Services and Airports, Engineering and Resource Protection, Facility and Capital Projects, and Road Services.

Facilities Maintenance & Operations
FM&O, short for Facilities Maintenance & Operations, ensures County facilities are safe, comfortable, and clean. From historic landmarks to modern offices, we keep things running smoothly.

The FM&O Stationary Engineers perform maintenance and repairs to the various plumbing, mechanical, and lighting systems throughout County facilities. These include boilers, chillers, pumps, motors, lamps, ballasts, drivers, toilets, sinks, and faucets as well as utilizing the lighting and building control systems to schedule and adjust run times of the various pieces of equipment. There are multiple Stationary Engineer I/II vacancies in FM&O.

Our team turns the screws, tightens the bolts, hammers the nails, paints the walls, and types in the codes to keep all the buildings and their systems working. If it's loose, stuck, hot, cold, light, or dark FM&O gets the call. Whatever it takes, our team does it with professionalism, care, and heart!

The Position
Under the direction of a Supervising Stationary Engineer, Stationary Engineers are responsible for a wide variety of repair and maintenance work in the areas of HVAC, electrical, plumbing, refrigeration, emergency power systems, water treatment systems, boiler equipment, and piping repair, building automation systems, and miscellaneous equipment repair. Stationary Engineer II is a journey-level classification, and incumbents are expected to have proficiency, perform independently, and solve complex problems in all of the areas listed above.

There are multiple vacancies to be filled throughout the Department. Work locations will include Redwood City Government Center, San Mateo Medical Center, Youth Services Center, and Maple Street Correctional Facility.
Candidates hired as Stationary Engineers must be willing to work evenings, weekends, and alternate shifts. They must also successfully obtain and maintain a Sheriff's Office security clearance as a condition of employment. 

The ideal candidates for these positions will have:

• At least three years of journey-level experience as a Stationary Engineer.
• A minimum of three years of journey-level experience in mechanical, electrical, and plumbing systems.
• Extensive knowledge and experience working with boiler and HVAC systems.
• Proficiency in a wide variety of installations and repairs on plumbing, gas system piping, chiller/boiler piping, and wastewater systems, including the ability to operate a large sewer snake.
• Certification as a Backflow Prevention Tester.
• Experience in energy management and computer-controlled systems.
• The ability to troubleshoot, repair, and maintain a variety of equipment, including air conditioning, electric motors, heating units, heat pumps, light commercial furnaces, burners, fresh air and exhaust fans, economizers, and humidifiers.
• Experience with Fire Alarm testing, troubleshooting, and NFPA codes.
• Experience in a hospital or healthcare setting.

Examples Of Duties:

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

• Operate, maintain, install, and repair electrical, refrigeration, plumbing, heating, air conditioning, and ventilating systems.
• Operate, maintain, and repair boiler equipment.
• Repair and replace pipes, fittings, and other equipment used in plumbing, gas, and steam systems.
• Repair electrical equipment, including lamps, fixtures, and switches; adjust electrical controls, motors, and auxiliary equipment up to 480 volts.
• Test, operate, maintain, and repair emergency power systems, including UPS, emergency generators, and associated equipment.
• Use hand and power tools, including cutting and threading tools, grinders, reamers, wrenches, welders, saws, and other special tools.
• Make minor carpentry repairs to doors, windows, floors, and other parts of buildings.
• Do touch-up painting on repaired equipment.
• Remove or arrange for the removal of trash, pests, and other hazardous materials or debris in the course of performing work. 
• Properly place, set, and inspect traps, and collect and remove insects and pests.
• Reclaim or recycle refrigerant using Freon recovery systems.
• Operate water treatment facility, including wastewater and potable water.
• Adjust and calibrate boiler burners and controls.
• Adjust and calibrate chiller controls.
• Test, calibrate, and repair backflow devices.
• Calibrate HVAC controls and associated equipment.
• Monitor building management systems.
• Replace pumps and pump seals, and repair and replace motor valves.
• Repair and replace air conditioning units.
• Troubleshoot HVAC, plumbing, electrical, and energy power systems.
• Conduct preventative maintenance.
• Understand fire alarm systems.
• Repair and install chemical monitoring stations.
• Repair, test, and record data on generators.

If designated as the certified water treatment operator:

• Operate water treatment facility, including wastewater and potable water, consistent with performance standards, federal and state regulations, and variable operating conditions and emergencies.
• Make periodic inspections and reports of facility conditions to ensure adherence to maintenance procedures.
• Perform water sampling in coordination with the health laboratory.
• Maintain logs of facility operations, test results, scheduled maintenance, and other operating conditions.
• Control filter operations.
• Coordinate special projects related to water treatment and distribution, in close coordination with supervisor/manager.
• Troubleshoot complex technical problems related to water treatment and develop recommendations to improve water quality standards, facility effectiveness, and efficiency.
• Perform quality analysis of raw and treated water.
• Compile data concerning flows, chemical dosages, levels, pressure, volume, water quality, and other operational information.
• Prepare reports.

Qualifications:

Education and Experience:
Any combination of education and experience that would likely provide the required knowledge, skills and abilities is qualifying.  
 

• Completion of courses related to maintenance, installation, and repair of electrical, HVAC, plumbing, refrigeration, and power equipment.
• Two years of journey-level experience as a stationary engineer or equivalent, AND demonstrated experience in maintaining, installing, and repairing electrical, HVAC, plumbing, refrigeration, and power equipment in a large building, plant, or vessel.
• Two years of experience can be substituted with the completion of an apprenticeship program.

Licensure/Certification:

• Must obtain and maintain Sheriff's Office security clearance.
• Universal Certification in Freon recovery upon hire.
• Obtain Backflow Certification within six months of hire and maintain certification.
• If designated as the water treatment operator, possession of or ability to obtain a valid Grade II Water Treatment Operator Certification issued by the State of California within six months of employment is required.

Knowledge of:

• Common safety practices in the workplace.
• Heating and electrical equipment.
• Principles and techniques used in stationary engineering.
• Proper and safe use of basic hand tools.
• Basic arithmetic for measuring, calibrating, and estimating.
• Steam and gas fired heating systems; refrigeration equipment; ventilating and air-conditioning equipment.
• Electrical, plumbing and refrigeration systems.
• Controls and control systems.
• Emergency power systems, generators, and associated equipment.
• Freon recovery procedures and equipment, if at Level II.
• Water treatment systems and operations, principles and practices, and regulatory mandates, if designated as certified water treatment operator.
• Safety rules, regulations, and work practices, including reference to hazardous chemicals.
• Basic record-keeping principles and practices.

Skill/Ability to:

• Follow safety practices.
• Troubleshoot and/or repair, replace, regulate and control electrical, refrigeration, plumbing, heating, air conditioning, and ventilating systems.
• Determine and estimate materials required for a job and prepare requisitions.
• Use hand and power tools.
• Make metal parts and equipment.
• Perform minor carpentry and painting tasks.
• Follow oral and written instructions.
• Communicate effectively, courteously, and professionally with customers and others.
• Read and interpret plans.
• Prepare and maintain accurate maintenance records.
• Operate standard office equipment, computers, and timekeeping systems.
• Lift and carry materials, supplies, and equipment; climb ladders; and crawl in tight spaces.
• Perform water treatment plan and distribution system operations and maintenance activities if at Level II and designated as water treatment operator. 

Application/Examination:

Open and Promotional. Anyone may apply. Current County of San Mateo employees with at least six months (1040 hours) of continuous service in classified regular, probationary, extra-help/limited term position prior to the final filing date will receive five points added to their final passing score on this examination. 
 
The examination process will consist of an Application Screening (weight: pass/fail), and an Interview (weight: 100%), which may include a performance exam. Depending on the number of applicants, an application appraisal of education and experience may be used in place of other examinations, or further evaluation of work experience may be conducted to group applicants by level of qualification. All applicants who meet the minimum qualifications are not guaranteed advancement through any subsequent phase of the examination. All examinations will be given in San Mateo County, California, and applicants must participate at their own expense. 

IMPORTANT:  Applications for this position will only be accepted online. If you are currently on the County's website, you may click the “Apply” button. If you are not on the County's website, please go to https://jobs.smcgov.org/ to apply. Responses to the Supplemental Questionnaire must be submitted in addition to the standard County employment application form. A resume will not be accepted as a substitute for the required application materials. Online applications must be received by the Human Resources Department before midnight on the final filing date.

This is a continuous recruitment which may close at any time. The final filing date will be posted five days in advance on this job announcement.

Apply immediately. This recruitment is open on a continuous basis, and selections may be made at any time within the process.

Tentative Recruitment Schedule: 
Round 1 of Screening: Week of January 5, 2026
Round 1 of Panel Interviews: Week of January 19, 2026 
Round 2 of Screening: Week of February 2, 2026
Round 2 of Panel Interviews: Week of February 16, 2026
Round 3 of Screening: Week of March 2, 2026
Round 3 of Panel Interviews: Week of March 16, 2026