Engineer (Civil/Mechanical)

Salary: $142,521.60 - $173,243.20 Annually
Location : Headquarters - 18480 Bandilier Cir, Fountain Valley, CA 92708, CA
Job Type: Full-time
Job Number: 279
Department: Engineering
Division: Construction Management
Opening Date: 06/04/2026
Closing Date: 6/18/2026 5:00 PM Pacific


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 an Engineer (Civil/Mechanical) .
Under general direction, this Engineer performs a wide variety of complex engineering duties involving the construction and/or rehabilitation of wastewater treatment facilities and collection systems. Serves as the Resident Engineer for OC San on major Capital Improvement Projects (CIP) and smaller projects. Provides technical information to other project team members, researches problems and issues in a timely and professional manner, and performs related work as required.

This Engineer is responsible for answering and processing Requests for Information and Requests for Change; evaluates and processes contractors' Progress Payments monthly; coordinates construction submittal and/or shop drawing review comments; leads progress and special meetings with contractors and others, produces accurate and timely meeting minutes; creates Requests for Proposal , negotiates changes, and issues Field Change Orders; evaluates baseline schedules, monthly schedule updates, and Time Impact Analyses; and formulates and evaluates designed solutions to issues encountered during construction.
In addition this Engineer is responsible for duties involving the administration of construction contracts (including coordinating work with inspection staff, other departments, consultants, other agencies, and the public); prepares complex engineering plan clarifications and changes during construction of facilities; verifies that contract work meets contract document and regulatory requirements; provides construction engineering support to successfully complete projects within approved budgets and schedules; ensures established OC San standards, policies and procedures, and best practices are consistently applied.

Qualifications & Requirements
The successful candidate will possess:

1. 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, dependent upon area of assignment.
2. Four (4) years of increasingly responsible professional engineering work experience.
3. Must possess a valid California Class C Driver's License.
4. Must possess a valid registration as a professional engineer (P.E.) in the State of California.

Desirables:

• Previous design experience in the water/wastewater industry.
• Demonstrated ability to work closely with contractors and OC San/public agency staff to administer construction projects valuing several million dollars on pipeline, water treatment facilities, and/or similar heavy construction (not residential or commercial) experience.
• Resident Engineer experience in construction and commissioning of major facilities and pipeline installations.
• Negotiating skills to resolve pending contract changes and issues on construction projects.
• Proficient Microsoft software (Excel and Word) experience to produce reports and document projects.

Recruitment & Selection Process
Vacancies: 1

(an eligible list may be established for future vacancies)

Apply online at:

APPLICATION FILING DEADLINE: Thursday June 18, 2026; 5:00 P.M.

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

Hiring Salary Range: $142,521.60 - 157,102.40/Year
(starting salary will be within this range based upon qualifications)

Supplemental Information

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 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.
• Perform 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 is needed 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.
• Climb ladders, install cabling, work around and in low voltage field control panels and hardware; use electrical and networking test equipment; use tools to remove, install and test equipment including servers, network equipment, power supplies, fiber optics and cabling.

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.

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 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(1)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.

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.
Ten working days paid vacation after one year of service; eleven paid holidays and one floating holiday; sick leave; group life insurance; group disability insurance; group health insurance, dependent coverage available, including medical, dental, and vision, employee contribution is required; 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. Benefits are subject to the Board of Directors' periodic determination (usually annually) and the meet and confer process, and are therefore subject to change. The District makes a generous contribution toward the cost of these benefits.
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.

• Yes, I understand.

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, dependent upon area of assignment? Please ensure to list the details of your schooling in the "Education" section of your application.

• Yes
• No

03


Do you have a Masters degree from a college or university which is accredited by the US Department of Education, with major course work in Civil Engineering or a related engineering field? Please ensure to list the details of your schooling in the "Education" section of your application.

• Yes
• No

04


Do you have four (4) years of increasingly responsible professional engineering work experience?

• Yes
• No

05


If you answered "Yes" to the previous question, briefly describe your construction engineering experience. Please answer "N/A" if not applicable.
06


Do you possess a current, valid Professional Engineering (PE) registration from the State of California?

• Yes
• No

07


If you possess a valid Professional Engineering (PE) license, please indicate your license number and your area of Engineering (Civil, Mechanical, Electrical, etc.).
08


Do you have experience administering construction projects valuing several million dollars; commissioning of major facilities, and pipeline and/or heavy construction?

• Yes
• No

09


If you answered "Yes" to the previous question, describe your experience with construction projects valuing several million dollars; commissioning of major facilities, and pipeline and/or heavy construction. Please answer "N/A" if not applicable.
10


Do you currently possess any of the following certifications or active professional memberships?

• Certified Construction Manager (CCM) Certification
• Project Management Professional (PMP) Certification
• CMAA ( Construction Management Associate of America)
• ASCE (American Society of Civil Engineers)
• APWA (American Public Works Association)
• None of the above

11


Please describe your experience with negotiating resolution for contract changes and issues on construction projects. If no experience, list "N/A"
12


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?

• Yes
• No

13


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. Click on the radio button below to acknowledge you understand these requirements.

• Yes, I understand.

Required Question