Assistant Engineer Jobs in Rancho Cucamonga, CA (NOW HIRING)

Salary : $89,382.41 - $119,571.98 Annually
Location : Riverside
Job Type: Regular
Job Number: 26-76421-04
Department: Flood Control
Division: Flood Control
Opening Date: 08/26/2026
Closing Date: 9/2/2026 11:59 PM Pacific
For questions regarding this position, please contact the Recruiter listed in the Supplemental Information section.
ABOUT THE POSITION
The County of Riverside's Flood Control District has an opportunity for an Assistant Engineer located in Riverside, California. This position performs professional engineering work supporting the planning, design, construction, and operation and maintenance of stormwater management and flood control facilities throughout Riverside County.
The selected candidate will perform a variety of engineering assignments within the District's Planning, Design, Construction, and Operations and Maintenance divisions. Duties may include conducting engineering studies and analyses; preparing reports, plans, specifications, and cost estimates; reviewing engineering plans; performing inspections; and supporting public works projects. Projects may involve flood control facilities, including storm drains, channels, basins, dams, and levees, as well as stormwater recharge and treatment facilities.
Qualified candidates must possess a bachelor's degree in civil engineering, environmental engineering, or bioresource and agricultural engineering, and a valid Engineer-in-Training (EIT) Certificate.
Preferred qualifications include experience performing or reviewing hydrology studies and hydraulic and floodplain analyses; structural design; plan and drawing preparation; specification and bid document preparation; construction contract administration; and inspection of public works facilities. Knowledge and experience using engineering software such as HEC-RAS, HEC-HMS, WSPG, MicroStation, InRoads, AutoCAD, Civil 3D, FLO-2D, or other hydraulic, hydrologic, and structural design software is highly desirable.
Meet The Team
The Riverside County provides for the control and conservation of flood and storm waters and for the protection of watercourses, watersheds, public highways, life and property from damage within its boundaries.
EXAMPLES OF ESSENTIAL DUTIES
• Assist in the design of roads, hydraulics, reinforced concrete structures, sewer systems, or other public works projects by preparing plans, profiles and cross sections, making quantity estimates, horizontal and vertical alignment computations, and establishing grade controls.
• Supervise and perform drafting, computing, checking, and direction of field operations involved in the gathering and compilation of field data for the design layout and construction of highways, flood control channels, subdivisions, drainage structures, wells, sewer systems, parks, buildings, waste disposal, and other projects.
• Perform structural engineering analysis of proposed commercial, industrial and complex buildings and structures; review grading, building and structure plans for conformity to uniform building codes, local ordinances, state regulations, and administrative policies.
• Assist and advise permit applicants with engineering and related problems.
• Prepare and review maps; calculate and plot the results of field surveys.
• May inspect the construction of projects under contract.
• Perform field tests and take samples for laboratory tests of materials; prepare estimates for projects planned or under construction; prepare reports.
MINIMUM QUALIFICATIONS
Education: Graduation from an accredited college or university with a bachelor's degree in civil engineering, environmental engineering or bioresource and agricultural engineering. (Possession of a valid certificate as an Engineer-in-Training issued by the California State Board of Registration for Professional Engineers may substitute for the required education.)
Experience: One year of professional civil engineering experience in one or more of the following areas:

• The planning, design, and construction of projects such as:
  • Flood control facilities including storm drains, channels, basins, dams and levees.
  • Stormwater recharge facilities such as groundwater / infiltration basins.
  • Stormwater treatment facilities such as infiltration basins, biotreatment, bioretention.
  • Experience planning, designing and constructing highways, freeways, sanitary sewers and/or landfills, may also be considered.
• Performance of engineering studies / analyses related to the above types of projects/facilities.
• The detailed review (plan check) and approval of engineering studies and plans related to the above types of projects/facilities.

Knowledge of: The fundamentals of civil engineering, including mathematics and physics as applied to engineering of the above types of facilities. Knowledge areas should include one or more of the following: hydraulic analysis and design, hydrology (rainfall / runoff), topographic mapping and surveying, construction processes and methods, structural design/analysis of reinforced concrete.
Ability to: Perform the full scope of public works engineering under general supervision for any combination of design, report writing, planning, specification writing, plan review, quantity/cost estimates or inspection necessary for the completion of projects. Maintain cooperative working relationships with others.
Other Requirements:
License: Possession of a valid California Driver's License is required. This position involves travel to various locations throughout the county to conduct site visits.
Certificate: Possession of a valid certificate as an Engineer-in-Training issued by the California State Board of Registration for Professional Engineers may substitute for the required education.
Physical/Environmental Conditions/Requirements:
The Assistant Engineer will:

• Walk over uneven outdoor terrain and work in a variety of environmental conditions.
• Be exposed to a variety of weather elements (e.g., high temperatures, rain) while performing field duties.

Essential job duties must be performed with or without reasonable accommodations. For more information, see "Reasonable Accommodations" under APPLICATION INFORMATION.
SUPPLEMENTAL INFORMATION
Application Status
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General Information
If you have any questions regarding this posting, please contact Vanessa Diaz Beaird at or (951) 955-9112. Please allow 1-2 business days for a response to general inquiries.
APPLICATION INFORMATION
Veteran's Preference
The County has a Veterans Preference Policy applicable to new hires. To qualify, attach the required documents to your job application. Documents include a copy of your (or your spouse's) Member-4 Form DD-214 indicating dates of service. For spousal preference, and as applicable, the following documents: a copy of your marriage certificate, spouse's death certificate, a letter of spouse's disability and/or letter of service-related death (if available) from the U.S. Veteran's Administration. For privacy reasons, it is recommended that you remove your social security information from the document(s). A Human Resources Representative will review the materials and determine if you qualify for veterans' preference. For complete details and documentation requirements, please review the Veterans Preference Policy, C-3 here:
Reasonable Accommodations
The County of Riverside is committed to providing reasonable accommodation to applicants as required by the Americans with Disabilities Act (ADA) and Fair Employment and Housing Act (FEHA). Qualified individuals with disabilities who need a reasonable accommodation during the application or selection process should contact the recruiter for the position noted above. For additional information and/or to obtain the appropriate form for requesting a reasonable accommodation, please visit the Disability Access Office web page located at:
Work Location and Telework
In-person attendance is the standard work expectation for County of Riverside assignments. Certain assignments may be eligible for a hybrid telework schedule; however, telework arrangements are subject to management approval, operational needs, and/or may be modified or discontinued at any time. Employees who telework are expected to be able to report to their assigned worksite on short notice or as operational needs require. Unless otherwise specified for a particular position, employees are expected to reside in California following appointment. Limited exceptions may apply. Applicants should contact the assigned recruiter for additional information regarding work location expectations, telework eligibility, and residency requirements.
Proof of Education
If using education to qualify or when requested by the recruiter, upload a copy of any license(s), official/unofficial transcript(s), degrees, and/or related employment documents to your NeoGov account at the time of application and before the closing date. Official or unofficial transcripts will be accepted.
If your education was completed outside of the United States, you will need to provide a copy of your Foreign Education Equivalency evaluation from a member of the National Association of Credential Evaluation Services () or Association of International Credential Evaluators, Inc. ().
Work Authorization Requirement
Applicants must be legally authorized to work in the United States at the time of application. The County of Riverside does not participate in visa sponsorship programs, including H1-B visas, and will not provide sponsorship for any employment-based visas.
Equal Opportunity Employer
The County of Riverside is an Equal Opportunity Employer. It is the policy of the County of Riverside to provide equal employment opportunities for all qualified persons. All applicants will be considered without regard to race, color, religion, sex, national origin, age, disability, sexual orientation, gender, gender identity, gender expression, marital status, ancestry, medical condition (cancer and genetic characteristics), genetic information, or denial of medical and family care leave, or any other non-job-related factors.
Pre-Employment
All employment offers are contingent upon successful completion of pre-employment requirements including a criminal background investigation, which involves fingerprinting. (A felony or misdemeanor conviction may disqualify the applicant from County employment). A pre-employment physical examination and background check may be required.
Probationary Period
As an Approved Local Merit System, all County of Riverside employees, except those serving "At Will," are subject to the probationary period provisions as specified in the applicable Memorandum of Understanding, County Resolution, or Salary Ordinance. Temporary and Per Diem employees serve at the pleasure of the agency/department head.
General Information
Current County of Riverside and/or current employees of the hiring department may receive priority consideration. Qualified candidates may be considered for future County vacancies.
Job postings may close without notice based on application volume. Submit your complete application by the recruitment close date; no late applications are accepted. Ensure all relevant experience/education is reflected on your application/resume, as a failure to demonstrate position requirements may disqualify applicants. A description of job duties directly copied from the job classification or job posting will not be considered.
Please read and follow any special application instructions on this posting. Click the 'Apply' link located on this page to submit your application. For additional instructions on the application process, examinations, Veteran's preference, pre-employment accommodation or other employment questions, please refer to our web site,
If you are experiencing technical problems, you may contact the governmentjobs.com applicant support desk Monday through Friday, 6 am to 5 pm Pacific Time at support@governmentjobs.com or toll-free 1-855-524-5627.
BENEFIT PROGRAM: SEI
MEDICAL/DENTAL/VISION INSURANCE: A choice of different medical, dental and visions plan are available to elect. The County provides a Flexible Benefit Credit contribution as governed by the applicable SEIU Memorandum of Understanding to contribute towards the cost of these plans.
Note: Employees on assignment through the Temporary Assignment Program (TAP) receive different benefits. See the list
MISCELLANEOUS RETIREMENT: County of Riverside has three retirement Tiers through the California Public Employees' Retirement System (CalPERS).

• Tier I (Classic Member - Formula 3% @ 60): Applicable to current and former County of Riverside local miscellaneous employees hired prior to 08/24/2012 and did not withdraw CalPERS contributions. The employee contribution is eight (8%) percent.
• Tier II (Classic Member - Formula 2% @ 60): Applicable to local miscellaneous employees 1) hired after 08/23/2012 through 12/31/2012; 2) Previously employed with another CalPERS contracting public agency or a reciprocal retirement system, with a break in service of less than six months between the separation date with the previous employer and the appointment date with the County of Riverside. The employee contribution is seven (7%) percent.
• Tier III (PEPRA New Member - Formula 2% @ 62): Applicable to CalPERS local miscellaneous new members hired on or after the implementation of the Public Employees' Pension Reform Act of 2013 (PEPRA) which took effect January 1, 2013.