Librarian Library Assistant Jobs in Rancho Cucamonga, CA

Salary: $31.09 - $37.79 Hourly
Location : 4852 Lakeview Avenue Yorba Linda, CA
Job Type: Part Time
Job Number: 181900268
Department: Library
Opening Date: 08/24/2026
Closing Date: 9/4/2026 11:59 PM Pacific
Max Number of Applicants: 100
THE OPPORTUNITY
THE OPPORTUNITY
Do you enjoy working in a welcoming community environment where every day is a little different? The City of Yorba Linda is seeking Library Assistant - Substitute to help serve our patrons.
As a paraprofessional member of our library team, you'll be a go-to face for the public - helping patrons discover services, materials, and resources, while supporting programs, collections, and day-to-day operations that keep our library running smoothly.
This is an excellent opportunity for someone who enjoys independent work, takes pride in organization, and values exceptional customer service.
This position is an on-call position, which may include working mornings, afternoons, evenings, and weekends. The Yorba Linda Public Library is open Monday - Thursday 9:00 am - 8:00 pm and Fridays and Saturdays from 9:00 am - 5 pm.
This recruitment is limited to the first 100 applications. Candidates are encouraged to apply early.
WHY JOIN THE CITY OF YORBA LINDA?
At the City of Yorba Linda, you'll be part of a team dedicated to providing outstanding service to our community. We value collaboration, professionalism, innovation, and respect, and we strive to create a workplace where employees can grow while making a meaningful impact.
THE LIBRARY DEPARTMENT
At the Yorba Linda Public Library, we're more than a place to check out books-we're where inspiration, connection, and community come to life. Every day, our team helps spark curiosity, support lifelong learning, and create meaningful experiences for visitors of all ages. From innovative technology and engaging programs to personalized customer service and vibrant community spaces, the Library is a welcoming destination where employees have the opportunity to make a lasting impact. If you're passionate about serving others, love working in a collaborative environment, and want to be part of an organization that enriches lives every day, we'd love to have you join our team. ()
WHAT YOU WILL DO
As a Library Assistant - Substitute, you will:

• Deliver excellent customer service - reader's advisory, reference help, and hands-on guidance with library tools and technology.
• Support programming like story times, tours, and instructional classes, plus special projects and community outreach.
• Help maintain the collection and operate public and staff computers for research, reserves, and daily tasks.
• Assists with collection maintenance in assigned areas.

WHAT YOU BRING
The ideal candidate is someone who:

• Enjoys organizing materials and maintaining orderly workspaces.
• Works independently while remaining a collaborative member of a team.
• Takes pride in providing friendly, professional customer service.
• Learns new procedures and technology quickly.
• Communicates effectively with patrons and coworkers.
• Is dependable, flexible, and willing to assist wherever needed.
• Maintains attention to detail while performing repetitive tasks accurately.
• Treats members of the public with courtesy, patience, and professionalism.

WHAT WE ARE LOOKING FOR
Minimum Qualifications
Graduation from an accredited college or university with a Bachelor's Degree in Library Science or related field. A Master's of Library and Information Science degree is highly desirable.
Experience
At least 6 months of experience working in a library.
Availability
This position is an on-call position, which may include working mornings, afternoons, evenings, and weekends. The Yorba Linda Public Library is open Monday - Thursday 9:00 am - 8:00 pm and Fridays and Saturdays from 9:00 am - 5 pm.
Physical Requirements
This position is active and requires frequent movement throughout the workday. Essential physical activities include:

• Standing and walking for extended periods.
• Frequent bending, kneeling, crouching, reaching, and stretching.
• Lifting and carrying materials weighing up to 25 pounds.
• Pushing and pulling loaded book carts and other equipment.
• Setting up and moving tables, chairs, and other furnishings for programs and community events.

Candidates must also be able to:

• Read book labels, shelving guides, and written instructions.
• Communicate effectively with coworkers and members of the public.

PRE-EMPLOYMENT PROCESS
Final candidates will be required to successfully complete:

• Fingerprint-based background investigation
• Pre-employment medical examination (for positions where applicable)

These examinations are conducted at the City's expense. Applicants are encouraged not to resign from their current employment until they have received a final written offer of employment.
EQUAL EMPLOYMENT OPPORTUNITY
The City of Yorba Linda is an Equal Opportunity Employer committed to building and maintaining a diverse, inclusive, and respectful workplace. We welcome applicants of all backgrounds and provide equal employment opportunities without regard to race, color, religion, creed, sex, gender, gender identity or expression, sexual orientation, national origin, ancestry, age, disability, medical condition, genetic information, marital status, military or veteran status, or any other status protected by federal, state, or local law.
The City does not participate in Social Security, but rather provides an alternative retirement benefit in accordance with Internal Revenue Service regulations. Each part-time employee will automatically be enrolled in an individual MIssionSquare Retirement deferred compensation (retirement) account in which an employee must contribute 3.75% of their gross earnings and the City will contribute an additional 3.75% on behalf of the employee. Part-time employees must also contribute 1.45% of their gross earnings for Medicare coverage. No health or vacation leave benefits are provided to temporary part-time positions. Sick leave is accrued in accordance with the Healthy Workplaces, Healthy Family Act of 2014.
01
Do you have a Bachelor's Degree or are you currently enrolled in an Bachelor's degree program?

• Completed my Bachelor's Degree
• Currently enrolled/ working on my Bachelor's Degree
• Not currently enrolled or have an Bachelor's Degree

02
Do you have a Masters in Library and Information Science (MLIS) or are you currently enrolled in an MLIS degree program?

• Completed my MLIS
• Currently working on my MLIS
• Not currently enrolled or have an MLIS degree

03
Which of the following best describes your work experience in Library Services?

• No experience
• Less than one (1) year
• 1 to 2 years
• or more years

04
Do you prefer to work in Children's Services or Adult Services?

• Children's Services
• Adult Services

05
This position is an on-call position, which will include working mornings, afternoons, evenings, and weekends. The Yorba Linda Public Library is open Monday - Thursday 9:00 am - 8:00 pm and Friday's and Saturday's from 9:00 am - 5 pm.

• I am able to work at any time.
• I have some commitments; therefore, my availability is limited.

06
Please explain any days and times are NOT able to work.
07
All City of Yorba Linda employees are designated Disaster Service Workers through state law (California Government Code Section 3100-3109). Employment with the City of Yorba Linda 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 button below to acknowledge you understand these requirements.

• Yes, I understand

Required Question