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Part Time Admin Office Jobs in Riverside, CA (NOW HIRING)

ADMINISTRATOR

Santa Ana, CA · On-site

$17.25 - $18.25/hr

Coordinate and organize office activities and operations. Family * Foster a sense of belonging and ... Holiday for full-time and part-time employees * Discount programs ACE Parking is an Affirmative ...

ADMINISTRATOR

Santa Ana, CA · On-site

$17.25 - $18.25/hr

Coordinate and organize office activities and operations. Family * Foster a sense of belonging and ... Holiday for full-time and part-time employees * Discount programs ACE Parking is an Affirmative ...

ADMINISTRATOR

Santa Ana, CA · On-site

$17.25 - $18.25/hr

Coordinate and organize office activities and operations. Family * Foster a sense of belonging and ... Holiday for full-time and part-time employees * Discount programs ACE Parking is an Affirmative ...

Management/Administrator Pool

Pomona, CA · On-site

$9.6K - $30K/mo

Management/Administrator Pool Apply now Job no: 548089 Work type: Management (MPP) Location: Pomona ... MPP, Executive, Administrative, Temporary, Full Time, Part Time, Time Varies, On-site (work in ...

Showing results 21-40

Part Time Admin Office information

See Riverside, CA salary details

$12

$22

$36

How much do part time admin office jobs pay per hour?

As of Sep 15, 2026, the average hourly pay for part time admin office in Riverside, CA is $22.56, according to ZipRecruiter salary data. Most workers in this role earn between $18.08 and $24.81 per hour, depending on experience, location, and employer.

What is a part time admin office job?

Part-time admin office jobs involve providing administrative support to an organization while working fewer hours than a full-time position, typically under 35 hours per week. Responsibilities may include answering phones, managing schedules, filing documents, data entry, and general office tasks. These roles are suitable for individuals needing a flexible schedule, such as students, parents, or those seeking supplemental income. Employers often look for candidates with strong organizational, communication, and computer skills. Part-time admin office jobs can be found in a variety of settings, including businesses, schools, medical offices, and nonprofits.

What are the key skills and qualifications needed to thrive as a part time admin office professional?

To thrive as a Part Time Admin Office professional, you need strong organizational skills, attention to detail, basic office administration experience, and often a high school diploma or equivalent. Familiarity with office software like Microsoft Office Suite, email platforms, and sometimes scheduling systems is typically required. Excellent communication, time management, and problem-solving abilities help you handle tasks efficiently and interact effectively with colleagues and clients. These skills ensure smooth office operations, timely task completion, and a supportive environment for the broader team.

What are some common challenges faced by part time admin office staff, and how can they be managed effectively?

Part-time admin office staff often juggle multiple responsibilities within limited hours, making time management a key challenge. They may also need to quickly adapt to shifting priorities and support various team members, which can be demanding in a dynamic office environment. To manage these challenges effectively, clear communication with supervisors about expectations and priorities, as well as strong organizational skills, are essential. Utilizing task lists and digital productivity tools can help ensure that deadlines are met and important tasks are not overlooked.

What is the difference between Part Time Admin Office vs Part Time Receptionist?

AspectPart Time Admin OfficePart Time Receptionist
CredentialsBasic administrative skills, possibly some office software knowledgeCustomer service skills, basic computer skills
Work EnvironmentOffice setting, administrative tasksFront desk, greeting visitors, answering calls
Employer & IndustryBusinesses, corporate offices, organizationsHotels, clinics, corporate reception areas
Search & Comparison IntentAdministrative support roles, office jobsFront desk, customer service, receptionist roles

Part Time Admin Office roles focus on administrative tasks like data entry, filing, and managing office supplies, typically in an office environment. Part Time Receptionist positions emphasize greeting visitors, answering phones, and providing customer service at the front desk. While both roles require communication skills and basic computer knowledge, they serve different functions within an organization.

Which part time admin office jobs pay the most?

Part-time administrative roles such as executive assistants or office managers tend to pay the highest wages, especially when they require specialized skills like advanced software proficiency or industry-specific knowledge. Salaries can vary based on experience, location, and the complexity of responsibilities, with some positions offering higher hourly rates for specialized or senior-level tasks.

What are popular job titles related to Part Time Admin Office jobs in Riverside, CA?

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

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

The top searched job categories for Part Time Admin Office jobs in Riverside, CA are:

What cities near Riverside, CA are hiring for Part Time Admin Office jobs?

Cities near Riverside, CA with the most Part Time Admin Office job openings:

Infographic showing various Part Time Admin Office job openings in Riverside, CA as of August 2026, with employment types broken down into 1% As Needed, 83% Full Time, 14% Part Time, and 2% Contract. Highlights an 86% Physical, 4% Hybrid, and 10% Remote job distribution, with an average salary of $46,925 per year, or $22.6 per hour.

Office of Student Research (Admin Assistants) Instructional Student Assistant (ISA) Pool

San Bernardino, CA • On-site

California State University
Colleges, Universities, and Professional Schools • 1 - 5K employees

$17.25 - $22.50/hr

Full-time, Part-time

Re-posted 9 days ago


California State University rating

7.5

Company rating: 7.5 out of 10

Based on 47 frontline employees who took The Breakroom Quiz


Job description

Office of Student Research (Admin Assistants) Instructional Student Assistant (ISA) Pool

Apply now Job no: 548376
Work type: Instructional Student Assistant
Location: San Bernardino - San Bernardino Campus
Categories: Unit 11 - UAW - California Alliance of Academic Student Workers, Temporary, Part Time, On-site (work in-person at business location)

California State University, San Bernardino (CSUSB) is a preeminent center of intellectual and cultural activity in the Inland Empire region of Southern California. Opened in 1965 and set at the foothills of the beautiful San Bernardino mountains, the university serves approximately 19,000 students. CSUSB is a federally recognized minority-serving and Hispanic-serving institution that reflects the dynamic diversity of the region and has the most diverse student population of any university in the Inland Empire: 74 percent of its students are members of underrepresented groups, 80 percent are first-generation, and 56 percent are Pell eligible. For more information on the campus, please visit the CSUSB website.

CSUSB employs 467 full-time faculty and offers 48 undergraduate, 35 graduate, and one doctoral degree programs and 14 academic programs with national accreditation. At CSUSB, diversity, equity and inclusion are values central to our mission. We recognize that diversity and inclusion in all its forms are necessary for our institutional success. By fully leveraging our diverse experiences, backgrounds and insights, we inspire innovation, challenge the status quo and create better outcomes for our students and community. As part of CSUSB's commitment to hire, develop and retain a diverse faculty, we offer a variety of networking, mentoring and development programs for our junior faculty. We are committed to building and sustaining a CSUSB community that is supportive and inclusive of all individuals. Qualified applicants with experience in ethnically diverse settings and/or who demonstrate a commitment to serving diverse student populations are strongly encouraged to apply.

JOB SUMMARY

The OSR is seeking undergraduate students to serve as Administrative Research Assistants under the ISA classification. Students will support day-to-day operations and strategic planning of OSR programs, such as the Summer Research Program and Meeting of the Minds Symposium. Administrative ISAs will assist in communications, event logistics, data entry, and outreach to students and faculty. Candidates should demonstrate strong organizational and interpersonal skills and a commitment to supporting research at CSUSB.

TYPICAL ACTIVITIES

- Provide clerical and administrative support, including scheduling, email correspondence, and filing.
- Support the planning and execution of workshops, events, and research conferences.
- Create promotional materials, newsletters, and social media content.
- Assist with data entry and the maintenance of research-related databases.

MINIMUM QUALIFICATIONS

- Must be a currently enrolled graduate student at CSUSB.
- Minimum GPA of 3.0
- Strong written and verbal communication skills.
- Ability to maintain confidentiality and handle sensitive information.

 

REQUIRED QUALIFICATIONS

  • Must be eligible to work on campus and successfully complete hiring paperwork.
  • Proficiency in Microsoft Office (Word, Excel, Outlook) and Google Suite.
  • Attention to detail, strong organizational skills, and the ability to multitask. 

SPECIAL CONDITIONS

The person holding this position is considered a 'mandated reporter' under the California Child Abuse and Neglect Reporting Act and is required to comply with the requirements set forth in CSU Executive Order 1083 as a condition of employment.

Following a conditional offer of employment, a background check (including a criminal records check) must be completed satisfactorily before any candidate may start work with CSUSB. Failure to satisfactorily complete the background check may result in the withdrawal of the offer of employment. Note: CSUSB cannot deny an applicant a position solely or in part due to a criminal conviction history until it has performed an individualized assessment and linked the relevant conviction history with specific job duties in the position being sought.

Please note: Current employees who are offered positions on campus will be required to undergo a background check for any position where a background check is required by law or that CSUSB has designated as sensitive. Sensitive positions are those requiring heightened scrutiny of individuals holding the position based on potential for harm to children, concerns for the safety and security of people, animals, or property, or heightened risk of financial loss to CSUSB or individuals in the university community.

For health and well-being, CSUSB is a smoke & tobacco-free campus. The university is committed to promoting a healthy environment for all members of our community.

ABOUT THE DEPARTMENT

The Office of Student Research (OSR) supports undergraduate and graduate student research across all academic disciplines. Through funding, workshops, and events, OSR fosters a campus-wide culture of inquiry and scholarly engagement. Learn more at https://www.csusb.edu/student-research 

For questions regarding the recruitment, contact:

Office of Student Research

(909)537-3728

osr@csusb.edu 

HOW TO APPLY

Please submit

  1. Curriculum Vitae or Resume
  2. Cover Letter
  3. Reference List - names, telephone numbers, and email addresses of three (3) referees whom we may contact to obtain letters of recommendation. Confidential letters of recommendation will be solicited from those listed as references on the application if the applicant is moved forward in the recruitment process.

Formal review of applications will be as needed.

If you are interested in this opportunity, we invite you to apply by using this CSU Recruit Hyperlink at:

https://secure.dc4.pageuppeople.com/apply/873/gateway/Default.aspx?c=apply&sJobIDs=548376&SourceTypeID=803&sLanguage=en-us&lApplicationSubSourceID=11243

Please Note: CSUSB is currently not sponsoring applicants for H-1B employment that are subject to the $100,000 fee established by the "Presidential Proclamation: Restriction on Entry of Certain Nonimmigrant Workers" issued on September 19, 2025. Applicants are responsible for determining the applicability of the fee.

Salary is commensurate with experience.

(Actual Salary will be in accordance with percentage of time appointed) 

Instructional Student Assistant (1150)             $17.86 - $23.84  Per Hour

CSU Salary Schedule: https://www.calstate.edu/csu-system/careers/compensation/Pages/salary-schedule.aspx

A background check (including a criminal records check) must be completed satisfactorily before any candidate can be offered a position with the CSU. Failure to satisfactorily complete the background check may affect the application status of applicants or continued employment of current CSU employees who apply for the position.

The person holding this position is considered a 'mandated reporter' under the California Child Abuse and Neglect Reporting Act and is required to comply with the requirements set forth in CSU Executive Order 1083 as a condition of employment.

California State University, San Bernardino is an Affirmative Action/Equal Opportunity Employer. We consider qualified applicants for employment without regard to race, religion, color, national origin, ancestry, age, sex, gender, gender identity, gender expression, sexual orientation, genetic information, medical condition, disability, marital status, or protected veteran status. This position adheres to CSU policies against Sex Discrimination, Sexual Harassment, and Sexual Violence, including Domestic Violence, Dating Violence, and Stalking. This requires completion of Sexual Violence Prevention Training within 6 months of assuming employment and on a two-year basis thereafter. (Executive Order 1096)

This position may be "Designated" under California State University's Conflict of Interest Code. This would require the filing of a Statement of Economic Interest on an annual basis and the completion of training within 6 months of assuming office and every 2 years thereafter. Visit the Human Resources Conflict of Interest webpage link for additional information:
https://www.csusb.edu/human-resources/current-employees/employee-relations/conflict-interest

Advertised: May 14 2025 Pacific Daylight Time
Applications close:

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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