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Part Time Administrative Assistant Jobs in Riverside, CA

Administrative Support : * Greet and welcome visitors to the site in a professional and friendly ... Payroll and Reporting : * Assist in processing part-time employee payroll and required reporting.

Site Administrative Assistant

Rancho Cucamonga, CA · On-site

$18.50 - $24.75/hr

Administrative Support : * Greet and welcome visitors to the site in a professional and friendly ... Payroll and Reporting : * Assist in processing part-time employee payroll and required reporting.

Orange County, CA 100% in-person FLSA Classification : Part-Time, Non-Exempt Compensation: $27.00 ... Relámpago del Cielo is seeking an Administrative & Finance Assistant to support administrative ...

Orange County, CA 100% in-person FLSA Classification : Part-Time, Non-Exempt Compensation: $27.00 ... Relámpago del Cielo is seeking an Administrative & Finance Assistant to support administrative ...

Orange County, CA 100% in-person FLSA Classification : Part-Time, Non-Exempt Compensation: $27.00 ... Relámpago del Cielo is seeking an Administrative & Finance Assistant to support administrative ...

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... daily administrative operations of the company. What does an office assistant do? The ideal ... Perform receptionist and data entry duties when needed Job Type: Part-time Pay: $18.00 per hour ...

Showing results 21-40

Part Time Administrative Assistant information

See Riverside, CA salary details

$12

$21

$32

How much do part time administrative assistant jobs pay per hour?

As of Aug 17, 2026, the average hourly pay for part time administrative assistant in Riverside, CA is $21.95, according to ZipRecruiter salary data. Most workers in this role earn between $18.08 and $24.33 per hour, depending on experience, location, and employer.

What is a part time administrative assistant?

A Part Time Administrative Assistant provides administrative and clerical support to a business or organization on a part-time basis. Responsibilities typically include managing emails, scheduling appointments, organizing files, and handling data entry. This role requires strong organizational and communication skills, as well as proficiency with office software. Part-time hours vary depending on the employer's needs, making it a flexible job option.

What are some typical responsibilities I can expect as a part time administrative assistant?

As a Part Time Administrative Assistant, you will likely handle tasks such as answering phones, scheduling appointments, managing correspondence, filing documents, and maintaining office supplies. You may also be asked to support projects by preparing reports, organizing meetings, or assisting team members with various administrative duties. The role often requires balancing multiple priorities in a short workweek, so being flexible and organized is key. This position is a great way to gain experience in office operations and build skills that are valued in a wide range of industries.

What are the key skills and qualifications needed to thrive as a part time administrative assistant?

To thrive as a Part Time Administrative Assistant, you should have strong organizational abilities, attention to detail, basic office administration knowledge, and typically at least a high school diploma or equivalent. Familiarity with office software like Microsoft Office Suite, Google Workspace, and sometimes customer management systems (CMS) is commonly expected. Excellent time management, clear verbal and written communication, and a proactive attitude help you stand out in this role. These skills ensure office tasks are handled efficiently, supporting smooth operations while allowing you to adapt to varying workloads and team needs.

How to stay organized as a part time administrative assistant?

A part time administrative assistant can stay organized by maintaining a prioritized to-do list, using digital tools like calendars and task management software, and setting specific times for checking emails and completing tasks. Consistent filing systems and clear communication also help ensure efficiency and reduce errors.

What is the going rate for a part-time administrative assistant?

The pay for a part-time administrative assistant typically ranges from $12 to $20 per hour, depending on experience, location, and the complexity of tasks. In some regions, rates may be higher for specialized skills such as proficiency in office software or bookkeeping.

What are popular job titles related to Part Time Administrative Assistant jobs in Riverside, CA?

For Part Time Administrative Assistant jobs in Riverside, CA, the most frequently searched job titles are:

What job categories do people searching Part Time Administrative Assistant jobs in Riverside, CA look for?

The top searched job categories for Part Time Administrative Assistant jobs in Riverside, CA are:

What cities near Riverside, CA are hiring for Part Time Administrative Assistant jobs?

Cities near Riverside, CA with the most Part Time Administrative Assistant job openings:

Infographic showing various Part Time Administrative Assistant job openings in Riverside, CA as of August 2026, with employment types broken down into 100% Part Time. Highlights an 100% In-person job distribution, with an average salary of $45,662 per year, or $22 per hour.

Administrative Assistant/IEWBC (UEC)

California State University

San Bernardino, CA

$18 - $21/hr

Full-time, Part-time

Re-posted 26 days ago


California State University rating

7.7

Company rating: 7.7 out of 10

Based on 45 frontline employees who took The Breakroom Quiz

260th of 618 rated colleges and universities


Job description

Administrative Assistant/IEWBC (UEC)

Apply now Job no: 557575
Work type: Auxiliary
Location: San Bernardino - San Bernardino Campus
Categories: Excluded, Administrative, At-Will, Temporary, Part Time, On-site (work in-person at business location)

About University Enterprises Corporation at CSUSB

(This is not a state position)

University Enterprises Corporation at CSUSB ("UEC") supports the university's educational mission by providing quality services that complement the instructional program. The University depends upon UEC to provide services that cannot be supported with state funds. We're responsible for business enterprises on campus including, but not limited to, dining, bookstore, convenience store, and vending services. We also serve as the grantee for federal, state, and local funding for research and sponsored projects.

Position Summary

Temporary, Staff, Part Time, Non-Benefited position through 9/29/2026 (Appointment may be renewed annually based upon availability of funds, availability of work and satisfactory job performance). 

Salary: $18.00-$21.00 per hour.

Location: Inland Empire Womens Business Center site. Riverside, San Bernardino, or Temecula.

Work Schedule

19 hours per week. Monday through Friday within the hours on 8:00AM to 5:00PM. Some nights and weekends may be required.

First Review Deadline

This position will remain open until filled. 

Typical Activities

Under minimal supervision of the IEWBC Director, the Administrative Assistant will work independently to:

  • Answer phones, route calls, and take messages
  • Set appointments for consultants.
  • Call clients the day before their appointments to remind and confirm who they are seeing and the time and date of appointment.
  • Check emails for online appointment requests
  • Assist with training courses, workshops and event planning
  • Updating mailing lists, internal staff databases, and statistical information
  • Keeps promotional materials ready and keeps inventory of stock, places orders and verifies receipts 
  • Assist in execution of traditional or digital campaigns.
  • Attend outreach events including set up and break down of booths.
  • Other duties as assigned.
  • Some travel between sites may be required. 

Minimum Qualifications

  • Education: High school diploma.
  • Experience: One year of experience in general office clerical work.
  • Other:
    • Well-developed communication skills and computer skills including Microsoft office suite and ability to quickly and accurately learn other electronic databases and programs.
    • Ability to conduct web-based research, and use Social Media effectively.
    • Strong interpersonal and communication skills along with excellent customer service skills.
    • Must possess a thorough knowledge of correct English grammar, spelling, punctuation, as well as knowledge of office methods, procedures, and practices.
    • Must have the ability to follow directions, take initiative, be flexible, can multi-task and make decisions on a day-to-day basis, and be accountable for work performed.
    • Must have the ability to work with diverse populations.

Preferred Qualifications

  • Bilingual/Spanish a plus.

Benefits Include:

  • Sick pay accruals.
  • Workers' Compensation, Unemployment Insurance, State Disability Insurance.
EQUAL OPPORTUNITY EMPLOYER

University Enterprises Corporation at CSUSB is committed to a diverse workforce and affirmative action, and is an equal opportunity employer. UEC maintains and promotes a policy of non-discrimination and non-harassment on the basis of race, sex, gender, color, age, religion, national origin, ancestry, marital status, sexual orientation, physical or mental disability, pregnancy, medical condition, genetic characteristics, status as a disabled veteran, or disabled veteran of the Vietnam era.
To view the UEC Affirmative Action Program, please contact UEC Human Resources at UEC-HR@csusb.edu Monday through Friday between the hours of 8:00am and 5:00pm.
As an equal opportunity employer, University Enterprises Corporation at CSUSB (UEC) is committed to a diverse workforce.  If you are a qualified individual with a disability or a disabled veteran, you have the right to request a reasonable accommodation if you are unable or limited in your ability to use or access UEC's career website as a result of your disability.  You may request reasonable accommodations by contacting UEC's Human Resources Manager at UEC-HR@csusb.edu.

EEO AA Policy Statement 

Employment of Individuals with Disabilities and Protected Veterans

Supplemental Information

UEC is an EOE - Minority/Female/Disability/Veterans. This position will remain open until filled. This has been designated as a sensitive position. The selected candidate must successfully pass a thorough background investigation to include a criminal history check prior to appointment.

Advertised: Apr 24 2026 Pacific Daylight Time
Applications close:

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What California State University employees say

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About California State University

Sourced by ZipRecruiter

California State University, Fresno is one of 23 campuses in the California State University System. The University's mission is to boldly educate and empower students for success through our values of Discovery, Diversity and Distinction. The current student population is more than 25,000, including a large percentage of students with diverse and culturally rich backgrounds. The University serves the San Joaquin Valley while maintaining deep involvement with the state, nation, and across the globe.

Industry

Colleges, universities, and professional schools

Company size

1,001 - 5,000 Employees

Headquarters location

Long Beach, CA, US