Engineering Intern Jobs in Rialto, CA (NOW HIRING)

Salary: $19.75 - $21.25 Hourly
Location : City Hall, 21810 Copley Drive, Diamond Bar, CA
Job Type: Part-time Intermittent
Job Number: 2026-0010
Department: Public Works
Opening Date: 09/01/2026
Closing Date: 9/27/2026 11:59 PM Pacific
The Position
The City of Diamond Bar's Public Works Department is looking for a dynamic engineering student, to join its team of outstanding professionals, as a paid Intern.
The City of Diamond Bar is a general law city incorporated on April 18, 1989. It is governed by the city council/city manager form of government. A five-member city council is elected by the residents, and a mayor is elected annually by the council to serve a one-year term. The city manager is appointed by the council to oversee the daily activities of the City.
The Public Works Department provides information on general engineering matters relating to City streets, public right-of-ways, City's capital projects, utilities, traffic related issues, grading, drainage, stormwater compliance and more. The Department is responsible for the day-to-day maintenance of all publicly owned property within the public right-of-way, including streets, curbs, gutters, sidewalks, traffic signals, signs, streetlights, maintenance (public park & public building facilities) and sewers/storm drains.
Examples of Essential Job Duties
The assigned Intern will report to the Engineering Division and have the opportunity to work with all staff in the Public Works Department. The Diamond Bar Public Works Department is multi-faceted with numerous areas of responsibility ranging from roadways, utilities, traffic, grading, stormwater compliance, and overall public safety. The Department is interested in hosting an intern to be exposed to all aspects of the municipal Public Works environment that they may not be able to experience in larger local agencies. The Intern assignment will take place at Diamond Bar City Hall, 21810 Copley Drive, Diamond Bar, CA 91765.
The selected Intern will have the opportunity to be exposed to a wide variety of engineering and maintenance related tasks in the Public Works Department. The Civil Engineering Intern may be assigned to assist with the following tasks:
Public Counter Coverage
• Dumpster Permits
• Overload/Oversize Permits
• Public Document Request retrieval
• Grading Plan Check Process Questions
• Encroachment Permits
Administrative Assignments
• Encroachment Permit Bond Refunds
• Label and File Approved Plans
• Address Changes
• Service Requests/Field Visits for Drainage Concerns
• Quarterly Utility Billings
Traffic Engineering Assignments
• Neighborhood Traffic Management Program (NTMP) Project assistance
• Traffic Control Encroachment permit processing
• Collision Report collection and analysis
• Assist with the preparation of variety of Request for Proposal (RFP)
Land Development
• Coordination tasks with the City's on-call engineers/plan checkers
• Storage and File Organization and Codification
Stormwater Compliance Services
• Inspection and issuance of letters for sites with violations of National Pollutant Discharged Elimination System (NPDES) Permit
• Track and Maintain Log of NPDES Violations
• Assist with annual reports to the Water Board
Maintenance Division
• Perform basic field check duties with Maintenance staff, such as striping, asphalt and concrete flatwork conditions
• Assist with responses to requests and complaints
• Provide assistance in reviewing the engineering plans, specs, and as-built plans
Qualification Guidelines
Education: Currently enrolled college or university students that have attained Junior or Senior level status in the undergraduate Civil Engineering program, in addition to, Master of Civil Engineering students will be considered.
Experience: None required
The following skills, knowledge, and abilities are highly desirable for program participation:

• Ability to apply research techniques, survey methods, and data collection
• Excellent customer service skills
• Flexibility and ability to handle multiple priorities
• Excellent verbal and written communication skills
• Ability to foster effective working relationships with all levels of staff and the public
• Computer experience including Microsoft Office and/or design and drafting software
• Ability to work independently and in a team
• Being reliable and ability to meet deadlines & follow schedules
• Self-starter and a desire to learn and implement new skills and expertise

Selection Process
The successful candidate would be assigned a minimum of two to three working days during business hours, 7:30am - 5:30pm, Monday through Thursday and 7:30 - 4:30pm on Friday each week for a total of 18 hours/week.
Some of the benefits to the Interns include:

• Build resumes/work history and explore career options
• Apply skills and knowledge acquired in an academic setting to the workplace
• Fulfill college/university internship requirements
• Network with professionals in their fields of interest
• Intern with one of the premier public employers in the region
• Flexible scheduling to allow for finals and changes in class schedule
• As scheduling permits, engage in employee events, such as holiday luncheon, city-wide meetings, Commission and Council meetings
• Meet with City Manager and other City Executives

Candidates whose education, experience and/or training appear to be best qualified will be invited to participate in an Oral Interview: 100%.
The top candidate(s) will be required to successfully pass a criminal background check, verification of work experience, and submit an official copy of educational transcripts verifying obtained degrees or certificated as indicated on the employment application. The selected candidate will be required to successfully pass a City-paid medical examination after a conditional job offer is made.
This position does not receive any benefits except 40 hours of paid sick leave as required by state law. This position may average up to 19 hours/week or less and no more than 999 hours in a twelve (12) month period. Intermittent part-time positions are considered at-will and participate in an alternative retirement system through a mandatory 7.5% pre-tax contribution to a deferred compensation account with MissionSquare.
01
Are you currently enrolled in an undergraduate or graduate Civil Engineering program at a college or university?

• Yes
• No

Required Question