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Part Time Administrative Assistant Jobs in Riverside, CA

My Office Apps

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Administrative Assistant (Part-Time)

Irvine, CA · On-site

$22 - $25/hr

We are seeking a dynamic and highly organized Administrative Assistant to join our team. In this ... In-Office, Part-Time Role (No Remote) Key Responsibilities Executive Support * Provide direct ...

My Office Apps

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Administrative Assistant (Part-Time)

Irvine, CA · On-site

$22 - $25/hr

We are seeking a dynamic and highly organized Administrative Assistant to join our team. In this ... In-Office, Part-Time Role (No Remote) Key Responsibilities Executive Support * Provide direct ...

DaVita

Administrative Assistant

Corona, CA · On-site

$25 - $30/hr

Administrative Assistant (AA) - InCenter Hemodialysis (ICHD) Employment Type: Part-Time Schedule: Flexible, based on the clinic's operational needs We encourage fun, on and off the clock. Be the ...

BMR Partners Inc.

Administrative Assistant

Orange, CA · On-site

$19.25 - $26/hr

Description: Part time role that will provide administrative support throughout the licensing and ... assist contracting process * Assists in scheduling and maintaining the annual payor updating and ...

SPECTRUM LAND SERVICES

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Corporate Administrative Assistant

Anaheim, CA · On-site

$27 - $32/hr

CORPORATE ADMINISTRATIVE ASSISTANT (IN-OFFICE) Under general direction from executive management, project management and other staff members, this Part-Time position performs general administrative ...

OneOC

Administrative & Finance Assistant

Santa Ana, CA · On-site

$27 - $30/hr

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 ...

OneOC

Administrative & Finance Assistant

Santa Ana, CA · On-site

$27 - $30/hr

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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All JobsAdministrative JobsPart Time Administrative Assistant JobsPart Time Administrative Assistant Jobs in Riverside, CA

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 Sep 10, 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:

Part Time Administrative Assistant jobs near you
Infographic showing various Part Time Administrative Assistant job openings in Riverside, CA as of September 2026, with employment types broken down into 2% As Needed, 72% Full Time, 22% Part Time, 1% Temporary, and 3% Contract. Highlights an 98% Physical, 1% Hybrid, and 1% Remote job distribution, with an average salary of $45,662 per year, or $22 per hour.

Administrative Assistant (Part-Time)

Irvine, CA • On-site

My Office Apps
Software Development • 11 - 50 employees
Learn more about My Office Appsexternal

$22 - $25/hr

Part-time

Posted 20 days ago

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Key responsibilities

  • Provide administrative support to senior executives, including calendar management, meeting coordination, and travel arrangements.

  • Assist in preparing reports, presentations, and correspondence for executives, and manage communications and internal records.

  • Support sales, marketing, and operational activities such as maintaining CRM records, creating marketing materials, coordinating client meetings, and handling light accounting tasks.

Job description

We are seeking a dynamic and highly organized Administrative Assistant to join our team. In this vital role, you will provide comprehensive administrative support to senior executives, ensuring smooth daily operations and efficient project execution. Your proactive approach, exceptional organizational skills, and ability to manage multiple priorities will help drive our organizational success. This position offers an exciting opportunity to be at the heart of our leadership team, facilitating communication, coordinating projects, and managing essential office functions with enthusiasm and professionalism.


In-Office, Part-Time Role (No Remote)


Key Responsibilities

Executive Support

  • Provide direct administrative support to multiple executives, including calendar management, meeting coordination, and travel arrangements
  • Prepare executive-level reports, presentations, and correspondence
  • Manage incoming communications and prioritize responses appropriately
  • Maintain strict confidentiality of sensitive business information
  • Organize executive documents, files, and internal records

Sales Department Support

  • Assist in preparing sales presentations, proposals, and client documentation
  • Maintain CRM records and ensure data accuracy
  • Track sales metrics and generate performance reports
  • Coordinate client meetings, follow-ups, and documentation
  • Support contract preparation and sales administration tasks

Marketing Department Support

  • Create and edit marketing materials and branded presentations using Canva
  • Draft and schedule social media posts across platforms
  • Assist with campaign coordination and marketing reporting
  • Maintain organized digital marketing assets and content libraries
  • Support email communications and content updates

Administrative & Operational Support

  • Maintained and organized communications between clients, onboarding, and the support team
  • Help with the overall implementation process and documentation
  • Draft, edit, and proofread internal and external communications
  • Coordinate cross-department meetings and track action items
  • Light accounting- Invoicing and bills
  • Assist with research, reporting, and process documentation
  • Support special projects and company-wide initiatives

Qualifications

  • 3-5 years of proven experience in executive administrative support or office management roles with strong organizational skills.
  • Advanced proficiency in Microsoft Office Suite (Word, Excel, PowerPoint, Outlook)
  • Experience using Canva for presentations and marketing materials
  • Familiarity with social media platforms and content posting
  • Strong written and verbal communication skills
  • Exceptional attention to detail and organizational ability
  • High level of professionalism, discretion, and confidentiality
  • Self-motivated, dependable, and solutions-oriented
  • Familiarity with QuickBooks for bookkeeping tasks; experience with basic financial record keeping is a plus.
  • Ability to manage multiple projects simultaneously while maintaining attention to detail under tight deadlines.

Preferred Attributes

  • Experience supporting multiple executives
  • Exposure to sales or marketing operations
  • Strong reporting and data organization skills
  • Knowledge of QuickBooks and some understanding of accounting
  • Expert in Excel and all MS Suite
  • Familiar with AI tools
  • Ability to work independently while collaborating across teams

Benefits and amenities:

Our office location offers a variety of amenities to help you stay well and enjoy your workplace.

  • On-site Yoga Studio
  • Full-service Gym with Shower Facilities
  • Wellness Room
  • On-Site Café
  • Unwind and play a game of corn hole and enjoy the regulation-size Bocce ball court and putting green
  • Game Room & Lounge
  • EV charging station on site
  • Paid time off
  • Health Insurance
  • Dental/Vision

Company Description

My Office Apps Inc. (MOA) is a leading software provider based in Irvine, California. We specialize in designing and developing efficient and cost-effective cloud-based ERP software solutions. Our mission is to empower businesses with innovative tools that enhance productivity and streamline operations.