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Part Time Office Jobs in Rialto, CA (NOW HIRING)

La Sierra University

Office Coordinator

Riverside, CA · On-site

$18.75 - $25/hr

This is a part-time position of 20 (50%) hours per week. Essential Duties and Responsibilities includes the following. Other duties may be assigned. * Provide a physical presence in the office: be ...

Mark J. Kunihira DDS Inc.

Be Seen First

Dental Office Receptionist

Upland, CA · On-site

$33K - $40K/yr

Direct visitors to the appropriate person and office * Answer, screen and forward incoming phone ... Spanish speaking is a required skill Job Type : Part-Time around 32 hours/week Benefits: * 401(k) ...

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All JobsOffice JobsPart Time Office JobsPart Time Office Jobs in Rialto, CA

Part Time Office information

See Rialto, CA salary details

$9

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How much do part time office jobs pay per hour?

As of Sep 6, 2026, the average hourly pay for part time office in Rialto, CA is $18.99, according to ZipRecruiter salary data. Most workers in this role earn between $16.15 and $21.20 per hour, depending on experience, location, and employer.

What is a part time office job?

Part time office jobs are positions within an office setting where employees work fewer hours than a standard full-time schedule, typically less than 35-40 hours per week. These roles often include administrative tasks such as answering phones, organizing files, scheduling appointments, and supporting office operations. Part time office jobs can be ideal for students, parents, or anyone seeking work-life balance, as they offer flexible hours and the opportunity to gain professional experience without the commitment of full-time employment.

What are the key skills and qualifications needed to thrive as a part time office assistant, and why are they important?

To thrive as a Part Time Office Assistant, you generally need strong organizational skills, attention to detail, and basic computer proficiency, often supported by a high school diploma or equivalent. Familiarity with office software such as Microsoft Office Suite, email platforms, and sometimes office equipment like copiers or scanners is typically required. Excellent communication, reliability, and adaptability are key soft skills that help build positive relationships and handle varied tasks efficiently. These abilities are essential for supporting smooth office operations, meeting deadlines, and contributing positively to the workplace environment.

What are some common challenges faced by part-time office employees, and how can they effectively manage their workload?

Part-time office employees often face the challenge of balancing multiple tasks within limited hours, which can make prioritization essential. Since they may not be present every day, keeping up with ongoing projects and effective communication with full-time staff is key to staying informed and productive. Utilizing organizational tools, setting clear expectations with supervisors, and regularly checking in with teammates can help part-time office workers manage their responsibilities efficiently and ensure smooth workflow integration.

What is the difference between Part Time Office vs Part Time Administrative Assistant?

AspectPart Time OfficePart Time Administrative Assistant
CredentialsHigh school diploma or equivalent; some roles may require basic computer skillsHigh school diploma; proficiency in office software often preferred
Work EnvironmentOffice settings, reception areas, or administrative departmentsOffice environments, handling clerical and administrative tasks
Employer & Industry UsageBusinesses, nonprofits, government agenciesCorporations, small businesses, healthcare, education
Common Search & ComparisonPart Time Office vs Part Time Administrative Assistant

Both roles involve working in office settings with administrative duties. A Part Time Office position is broader, potentially including reception or clerical tasks, while a Part Time Administrative Assistant focuses specifically on supporting office operations through administrative tasks. The choice depends on the specific responsibilities and skills required.

What are the most commonly searched types of Office jobs in Rialto, CA?

The most popular types of Office jobs in Rialto, CA are:

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

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

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

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

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

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

Part Time Office jobs near you
Infographic showing various Part Time Office job openings in Rialto, CA as of August 2026, with employment types broken down into 1% As Needed, 84% Full Time, 13% Part Time, and 2% Contract. Highlights an 87% Physical, 5% Hybrid, and 8% Remote job distribution, with an average salary of $39,494 per year, or $19 per hour.

Office Administrator

The Russian School of Math

Chino Hills, CA

$18.25 - $25.25/hr

Part-time

Medical, Dental, Retirement

Posted 3 days ago

New

Job description

RSM's unique approach develops critical thinking and has built excellence in math since 1997. Recently featured by NPR and the Atlantic magazine as one of the players in the "Math Revolution" and ranked one of the best schools in the world by the Johns Hopkins Center for Talented Youth, RSM helps children of all levels build a solid math foundation and develop their critical-thinking and problem-solving skills. For nearly two decades, RSM students have consistently achieved remarkable scores on standardized tests and in national and international math competitions, although attaining top test scores is just one of the benefits of our program. RSM helps students of all levels become more confident in math and develop a deeper understanding of the subject.

RSM is looking to hire a part-time Office Administrator in our Chino Hills, CA location. The school operates from 3:30 pm to 8:30 pm on weekdays 9:00 am to 6:00 pm on weekends.

The primary responsibility of this position is to provide exceptional customer service, front desk coverage and administrative support to the RSM office and the School Principal. The incumbent will perform a wide range of administrative and general office duties and assist in special projects.

Responsibilities:

  • Provide exceptional customer service via phone and in person to current and prospective clients.
  • Create a welcoming environment for parents and students through adherence to customer service standards.
  • Respond to client inquiries, provide information on the school operations
  • Schedule meetings, maintain records and update the database
  • Assist in scheduling and coordination of RSM events, parents meetings, awards ceremonies, etc.
  • Assist in the office supply inventory/ordering and preparing expense reports for the School Principal and the office
  • Help with special projects as assigned and needed.

Qualifications:

  • Highly organized and motivated, ability to multitask and prioritize in dynamic, fast paced environment
  • Good written and verbal communication skills
  • Professional phone presentation and quick learning skills
  • Strong skills in MS Word and Excel
  • Minimum Associates degree or 1-2 years of office experience

Benefits:

RSM offers a comprehensive benefits package to eligible employees (upon meeting certain criteria) to support your health, well-being, and financial future. Our benefits include:

  • Medical Insurance: Access to medical plans to fit your needs.
  • Dental Insurance: Comprehensive dental coverage.
  • 401(k) Retirement Plan: Save for your future with a company-matched 401(k)plan.
  • Pre-tax Savings: Take advantage of pre-tax savings options for eligible expenses, including health and dependent care.
  • RSM Tuition Discount: Enjoy discounted tuition for your eligible dependents for RSM classes.

RSM embraces diversity and is committed to attracting qualified candidates who also embrace and valuediversity and inclusivity. RSM is an Equal Opportunity/Affirmative Action Employer

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