Salary: $122,283.20 - $148,574.40 Annually
Location : Headquarters - 18480 Bandilier Cir, Fountain Valley, CA 92708, CA
Job Type: Full-time
Job Number: 252
Department: Engineering
Division: Design
Opening Date: 11/09/2026
Closing Date: 12/3/2026 5:00 PM Pacific
DescriptionOC San is currently looking to fill the role of an
Assistant Engineer (Commissioning).Under direct supervision, performs a variety of engineering duties in support of the planning, design, construction, operations, and compliance of wastewater facilities, infrastructure, systems, operations, and programs; assists with the review and preparation of a variety of engineering drawings and designs and compliance and permitting documents; provides support for system management, treatment process performance and optimization including collections and treatment facilities; provides technical assistance to engineering and management staff; and performs duties as assigned.
This position works closely with other engineering disciplines, construction staff, Operations & Maintenance, consultants, and project stakeholders to ensure electrical systems, shutdown activities, and commissioning requirements are effectively integrated into project designs, specifications, and schedules. During construction, responsibilities may include coordination of electrical shutdowns, supporting commissioning activities, testing, documentation, system integration, reviewing shop drawings and coordination with the construction team and Operations & Maintenance.
Qualifications & RequirementsRequired: - Bachelor's degree from a college or university accredited by the U.S. Department of Education, with major coursework in civil, mechanical, chemical, electrical, or environmental engineering, or a related field.
- Valid California Class C Driver's License.
Desired:- College coursework focus in Electrical Engineering.
- Familiarity with single line diagrams and panel schedules.
- Familiarity with circuits and control schematics.
- Proficient Microsoft software (Excel and Word) experience to produce reports and document projects.
- Experience with Bluebeam Revu.
- Strong communication skills.
Recruitment & Selection ProcessVacancies: 1(an eligible list may be established for future vacancies)
Apply online at: www.ocsan.gov/careersAPPLICATION FILING DEADLINE: Thursday, December 3rd, 2026, 5:00 P.M. PST(or until a sufficient number of qualified applications have been received)
Hiring Salary Range: $122,283.20 - $134,763.20/Year(starting salary will be within this range based upon qualifications)
Supplemental InformationPHYSICAL 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 35 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.
- May be required to perform some light physical work; 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.
- 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 to access, enter, and retrieve data using a computer keyboard or calculator and to operate standard office equipment.
- Frequent walking in operational areas to identify problems or hazards.
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, 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- 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 WORKERSAll 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
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
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.
Vacation leave; eleven paid holidays and one floating holiday; sick leave; administrative leave; group life insurance; group disability insurance; group health insurance (employee contribution required), dependent coverage available, including medical, dental, and vision; a retirement* plan (Orange County Employees Retirement System) and the option of participating in a deferred compensation plan as well as other optional benefits. A credit union is available. Telecommuting (up to two days) depending on nature of the work, business need, and management approval. Benefits are subject to the Board of Directors' periodic determination (usually annually) and the meet and confer process, and are therefore subject to change. OC San makes a generous contribution toward the cost of these benefits.
* New employees hired on or after January 1, 2013 will be subject to the retirement benefit formula and provisions set forth by the California Public Employees' Pension Reform Act of 2013 (PEPRA).
For more information on benefits, visit our website at
01
PLEASE READ. The information provided on the Supplemental Questions will be used in conjunction with your job application to determine whether you meet the qualification requirements. Failure to provide detailed and complete information may result in your application being rejected. Do not submit a resume in place of completing these Supplemental Questions. Education obtained outside the United States must be comparable to education earned at an accredited school in the United States. We reserve the right to request further information about your academic program, evidence of comparability, or an original transcript. Any information you submit may be verified. When applying for this position, I understand that I must thoroughly complete the Education and Work Experience sections of my application and the Supplemental Questions. This includes a detailed description of each position that I feel qualifies me for the job I am seeking. I have read the above statement and understand that failure to provide sufficient detailed information may result in my application being rejected. I also understand that I may not submit a resume in lieu of filling out the job application or answering the Supplemental Questions. However, I may attach a resume to the application to provide additional information.
02
Do you have a bachelor's degree from a college or university accredited by the U.S. Department of Education, with major coursework in civil, mechanical, chemical, electrical, or environmental engineering, or a related field? Please ensure to list the details of your education in the "Education" section of your application.
03
If you answered "Yes" to the previous question, please list your major as listed on your diploma. If you answered "No", input N/A.
04
Which of the following best describes the highest level of education you have completed?
- High school diploma, GED, or equivalent
- Some college courses, but did not complete an Associate's Degree
- Associate's Degree
- Bachelor's Degree
- Master's Degree or higher
05
Are you in possession of or do you have the ability to obtain an appropriate, valid California Class C Driver's License by time of appointment?
06
Which of the following best describes your years of engineering experience?
- At least 6 months but less than 1 year
- At least 1 year but less than 2 years
- 2 years or more
- No Experience
07
Please indicate the engineering discipline that most closely matches your background, education, and experience.
- Civil
- Chemical
- Environmental
- Electrical
- Mechanical
- Other
08
Briefly describe your background as it relates to electrical engineering for water, wastewater, industrial, and commer
