ENGINEERING TESTING AID I

Job Description

Position/Program Information

EXAM NUMBER
C3852D

FILING PERIOD

The application filing period will begin on Thursday, August 20, 2026, at 8:00 a.m. (PT) - Continuous. We will keep accepting applications until the position is filled. The application window may close unexpectedly once we have enough qualified candidates .

TYPE OF RECRUITMENT

We welcome applications from anyone.

NO WITHHOLD WILL BE ALLOWED. REQUIRED EXPERIENCE/EDUCATION MUST BE FULLY MET AT THE TIME OF FILING AND CLEARLY INDICATED ON THE APPLICATION.

Why work for us?
With almost 10 million residents, Los Angeles County is the population county in the nation! As the largest employer in Southern California, with over 100,000 employees in 39 departments and over 2,100 different job descriptions, Los Angeles County offers a lifetime of opportunities and careers . We are Los Angeles County Public Works, the largest municipal public works agency in the nation. With more than 4,000 employees, Public Works offers over 500 different types of career opportunities that promote professional and personal growth as well as a rewarding and exciting work environment!

For more information about the outstanding benefits offered by Los Angeles County, please visit us here: https://hr.lacounty.gov/benefits/ .

If you have questions about working for Los Angeles County, including current open recruitments, tips on crafting a resume or acing an interview, career planning, or any other general information, please visit our website at: https://hr.lacounty.gov/ .

Essential Job Functions

• Fills with a shovel, lifts onto a pickup truck, and transports bags of soil weighing approximately 90 pounds to the materials lab for analysis.
• Lifts asphalt cores and core barrels, weighing approximately 40 pounds, for asphalt pavement laboratory testing, and conducts field samplings of soils for California Bearing Ratio tests.
  
• Lifts and shifts the position of 40-pound loaded sieves in the prep room.
  
• Digs holes 8 inches in diameter and 4 feet deep in firm, dense soil using a manual posthole digger.
  
• Prepares samples for testing, including identifying, dating, separating, and logging information on samples.
  
• Tests soil samples for compaction, consolidation, moisture content, shear strength, specific gravity, and bearing value.
  
• Tests sand and rock samples for grading, abrasion resistance, specific gravity, sand equivalency, and plastic limits.
  
• Tests paving liquid and emulsified asphalt samples for flash point, viscosity, heat loss, sieve retention, penetration, stripping, softening point, and residue by evaporation.
  
• Tests asphalt and concrete for specific gravity, setting time, oil content, screen analysis, etc.
  
• Performs the simpler phases of a wide variety of specialized materials tests.
  
• Acts as a helper in a field crew operating test boring equipment.
  
• Records and makes computations on test data and prepares report forms and graphs.
  
• Operates testing machines and equipment in making physical tests.
  
• Performs clean-up and minor maintenance work, keeping the laboratory and testing equipment in clean and workable condition.
  
• Performs other field sampling and testing work as required.
  

For more information, please view the classification specification: Engineering Testing Aid I

Requirements

REQUIREMENTS TO QUALIFY:

OPTION I : High school diploma, its equivalent, or higher*.

OPTION II : Six (6) months of construction, maintenance, or manual labor experience.

*Includes: a recognized high school equivalency credential, such as GED, or an associate’s degree or higher from an accredited college or university**.

PHYSICAL CLASS:
Physical Class 4 - Arduous: This class involves frequent heavy lifting over 25 pounds, often combined with bending, twisting, or working above ground on irregular surfaces. It includes those positions that occasionally demand extraordinary physical activity such as those in Safety positions.

LICENSE:
A valid California Class C Driver License or the ability to utilize an alternative method of transportation when needed to carry out job-related essential functions.

SPECIAL REQUIREMENT INFORMATION:
**To receive credit for your high school diploma or its equivalent, include a legible copy of all relevant documents, including your diploma, transcripts, or letter/certificate from an accredited institution or email it to [email protected] within five (5) calendar days of filing for your application. Acceptable documentation includes: a diploma from a public or private high school accredited by an organization recognized by the Unites States Department of Education, including U.S. Department of Defense high schools; successful completion of the GED, HiSET, TASC, or CHSPE. When emailing, please indicate your name, exam number, and exam title in the subject line.

To receive credit for your associate's degree or higher, include a legible copy of all relevant official documents, including your transcript from an accredited institution. The document should show the date the degree was conferred and be in English. If not in English, then translation is required. International degrees must be evaluated for equivalency to U.S. standards if not listed in the International Handbook of Universities or World Higher Education Database. Documents marked as unofficial will not be accepted. For more information on our standards for educational documents, please visit: https://file.lacounty.gov/SDSInter/dhr/070812_PPG123.pdf .

Note: A printout of a transcript from the school’s website is not considered official and will not be accepted. Submitting an unofficial document will result in your application being deemed incomplete and rejected.

We do not accept password-protected documents. Ensure documen ts are unlocked before attaching to your application or sending to the exam analyst.

Additional Information

Once we have identified that you meet our requirements, an invitation regarding the following assessment process will be sent:

EXAMINATION CONTENT:

This examination consists of a Multiple-Choice and/or Simulation Assessment , weighted 100%, measuring:

• Achievement
• Professional Potential
• Responsibility
• Teamwork
• Reading Comprehension
• Numerical Calculation

Applicants must receive a passing score of 70% or higher on the assessment to be added to the eligible register.
MULTIPLE-CHOICE AND/OR SIMULATION ASSESSMENT(S) ARE NOT REVIEWABLE BY CANDIDATES PER CIVIL SERVICE RULE 7.19.

Notice of non-acceptance and Final Result letters will be sent via email. Test scores cannot be given over the phone.

TESTING ACCOMMODATION:
If you require an accommodation to fairly compete in any part of the assessment process, you will be given the opportunity to make a request when completing your application. Please note, you may be required to submit documentation from a qualified medical provider or other qualified professional to support your request for a testing accommodation.

TRANSFER OF TEST COMPONENTS:

If you have taken identical components recently for other exams, your responses may be automatically transferred to this examination. This exam contains test components that might be used on future exams, and your responses could be transferred to that exam. Scores cannot be given over the telephone.

TEST PREPARATION:

We provide study guides and other test preparation resources to help candidates prepare for employment tests. While the guides may help in preparing for the test, we recommend reviewing all related materials that seem necessary.

• Various information can be found on our website at https://hr.lacounty.gov/job-search-toolkit/ . The section dedicated to test preparation is "Employment Test Assistance."
  
• Online practice tests are available at https://www.shldirect.com/en-us/practice-tests .
  
  

You can also visit our Los Angeles County Online Assessment Preparation Series webpage at https://lacounty.attract.neogov.com/la-county-online-assessments-prep-series for information about common online assessment types, sample questions, and test-taking tips.

ELIGIBILITY AND VACANCY INFORMATION:
Applicants who passed the assessment are placed on a list in the order of their score group for a period of twelve (12) months. Applications will be processed as they are received and added to the list accordingly. We will use this list to fill vacancies in Public Works as they occur.

APPLICATION AND FILING INFORMATION:
We only accept applications filed online. Applications submitted by U.S. mail, fax, or in person are not accepted. Apply online by clicking on the "Apply" green button at the top right of this posting. This website can also be used to get application status updates.

Please fill out the application completely. Provide relevant job experience including employer's name and address, job title, beginning and ending dates, number of hours worked per week, and description of work performed.

We may verify information included in the application at any point during the examination and hiring process, including after an appointment has been made. Falsification of information could result in refusal of application or rescission of appointment. Copying verbiage from the Requirements or class specification as your work experience will not be sufficient to demonstrate meeting the requirements. Doing so may result in an incomplete application and may lead to disqualification.

We will send notifications to the email address provided on the application, so it is important that you provide a valid email address. If you choose to unsubscribe or opt out from receiving our emails, it is possible to view notices by logging into governmentjobs.com and checking the profile inbox. It is every applicant's responsibility to take steps to view correspondence, and we will not consider claims of missing notices to be a valid reason for re-scheduling an exam part. Register the below domains as approved senders to prevent email notifications from being filtered as spam/junk mail.

• [email protected]
  
• [email protected]
• [email protected]
• [email protected]
• [email protected]
• [email protected]
• [email protected]

New email addresses need to be verified. This only needs to be done once per email address and can be done at any time by logging in to governmentjobs.com and following the prompts. This is to enhance the security of the online application and to prevent incorrectly entered email addresses.

SOCIAL SECURITY NUMBER: Federal law requires that all employed persons have a Social Security Number, so include yours when applying.

COMPUTER AND INTERNET ACCESS AT PUBLIC LIBRARIES: For candidates who may not have regular access to a computer or the internet, applications can be completed on computers at public libraries throughout Los Angeles County.

NO SHARING USER ID, EMAIL AND PASSWORD: All applicants must file their application using their own user ID and password. Using a family member or friend’s user ID and password may erase a candidate’s original application record.

ANTI-RACISM, DIVERSITY, AND INCLUSION (ARDI): The County of Los Angeles recognizes and affirms that all people are created equal and are entitled to all rights afforded by the Constitution of the United States. We are committed to promoting Anti-racism, Diversity, and Inclusion efforts to address the inequalities and disparities amongst race. We support the ARDI Strategic Plan and its goals by improving equality, diversity, and inclusion in recruitment, selection, and employment practices.

CONTACT INFORMATION
Department Contact Name: Mayra Fuentes
Department Contact Phone: (626) 458-2141
Department Contact Email: [email protected]
ADA Coordinator Phone: (626) 458-2141
Teletype Phone: (626) 282-7829
California Relay Services: (800) 735-2922

For detailed information, please click here