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Assistant Office Administrator Jobs in Riverside, CA

ServiceMaster

Front Office Admin

Riverside, CA · On-site

$20 - $25/hr

Join ServiceMaster Restore 10253 in Mission Viejo as a Front Office Admin, where you'll be the ... Process invoices and assist with billing and payment collections. * Support the team with ...

Hazen and Sawyer

Administrator

Irvine, CA · On-site

$70K - $80K/yr

Hazen & Sawyer is seeking an Office Administrator based in our Irvine, CA office. We are seeking a ... Operations Support * Assist with scheduling candidate interviews. * Assist HR with onboarding.

Innovative Signs & Designs LLC

Be Seen First

Office and Production Coordinator

Highland, CA · On-site

$17 - $22/hr

Duties · Assist in front office by greeting customers, answering calls with professional phone ... Join us as an Office Administrator and become an essential part of our creative team dedicated to ...

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All JobsOffice Administrator JobsAssistant Office Administrator JobsAssistant Office Administrator Jobs in Riverside, CA

Assistant Office Administrator information

See Riverside, CA salary details

$27.1K

$71.2K

$142.4K

How much do assistant office administrator jobs pay per year?

As of Aug 8, 2026, the average yearly pay for assistant office administrator in Riverside, CA is $71,166.00, according to ZipRecruiter salary data. Most workers in this role earn between $46,900.00 and $84,000.00 per year, depending on experience, location, and employer.

What does an assistant office administrator do?

An assistant office administrator supports daily office operations by handling administrative tasks such as scheduling, correspondence, data entry, and filing. They often use office software like Microsoft Office and coordinate with team members to ensure smooth workflow and organization.

What are the key skills and qualifications needed to thrive as an assistant office administrator?

To thrive as an Assistant Office Administrator, you need strong organizational skills, attention to detail, and proficiency in office procedures, often supported by a high school diploma or associate degree. Familiarity with office software such as Microsoft Office Suite, scheduling tools, and basic bookkeeping systems is typically required. Excellent communication, time management, and problem-solving abilities help you stand out in this role. These skills and qualities are crucial for ensuring smooth office operations, supporting team productivity, and providing effective administrative support.

What are some common challenges faced by assistant office administrators, and how can they be successfully managed?

Assistant Office Administrators often juggle multiple tasks such as scheduling, managing correspondence, and supporting various team members, which can lead to conflicting priorities and tight deadlines. Successfully managing these challenges requires strong organizational skills, the ability to communicate clearly, and proficiency with office technology. Setting clear priorities, proactively communicating with colleagues about workload, and staying adaptable to sudden changes can help ensure day-to-day operations run smoothly.

What is an assistant office administrator?

Assistant Office Administrators provide support in managing the daily operations of an office. Their duties often include handling correspondence, organizing files, scheduling appointments, ordering supplies, and assisting with basic bookkeeping tasks. They help ensure that the office runs smoothly by supporting management and staff with administrative tasks. This role requires strong organizational, communication, and multitasking skills.

What is the difference between Assistant Office Administrator vs Office Coordinator?

AspectAssistant Office AdministratorOffice Coordinator
Primary RoleSupports administrative tasks, manages office operations, assists with communicationCoordinates office activities, manages schedules, handles logistics
Required SkillsAdministrative skills, communication, organizationOrganizational skills, multitasking, communication
Work EnvironmentOffice setting, administrative supportOffice setting, event planning, logistics
Common UsageUsed in various industries for administrative support rolesUsed in corporate and organizational settings for managing office functions

The Assistant Office Administrator and Office Coordinator roles share similarities in supporting office functions and requiring organizational skills. However, the Assistant Office Administrator typically provides broader administrative support, while the Office Coordinator focuses more on coordinating activities and logistics. Both roles are essential for smooth office operations and are often found in similar work environments.

What are the most commonly searched types of Office Administrator jobs in Riverside, CA? The most popular types of Office Administrator jobs in Riverside, CA are:
What are popular job titles related to Assistant Office Administrator jobs in Riverside, CA? For Assistant Office Administrator jobs in Riverside, CA, the most frequently searched job titles are:
What job categories do people searching Assistant Office Administrator jobs in Riverside, CA look for? The top searched job categories for Assistant Office Administrator jobs in Riverside, CA are:
What cities near Riverside, CA are hiring for Assistant Office Administrator jobs? Cities near Riverside, CA with the most Assistant Office Administrator job openings:
Assistant Office Administrator jobs near you
Infographic showing various Assistant Office Administrator job openings in Riverside, CA as of August 2026, with employment types broken down into 1% As Needed, 85% Full Time, 11% Part Time, 1% Temporary, and 2% Contract. Highlights an 88% Physical, 4% Hybrid, and 8% Remote job distribution, with an average salary of $71,166 per year, or $34.2 per hour.

Office Assistant Customer Service

STELLAR TRAILERS CORP

Ontario, CA • On-site

$18 - $25/hr

Full-time

Re-posted 13 days ago

Job description

Please read job description. If you feel like you are a great candidate for this position, Please drop off your resume at

*** Due to the high volume of inquiries we highly recommend coming in person and dropping off a resume.

Stellar Trailers

1200 w mission blvd, Ontario Ca 91762

We are seeking an Office Administrator to join our team! You will perform clerical and administrative functions in order to drive company success. If you meet these requirements please don't hesitate to come in person to drop off a resume or text us at 909-732-1500 for faster replies. Stellar Trailers is looking for someone long term to grow with.

Responsibilities:

  • Draft correspondences and other formal documents
  • Plan and schedule appointments
  • Greet and assist onsite guests
  • Answer inbound telephone calls
  • Develop and implement organized filing systems
  • data input and output
  • invoicing
  • Accounts receivable and payable
  • Giving customer sales quotes on trailers
  • filing
  • organization of receipts
  • keeping updated with all business licensing
  • billing
  • office cleanliness
  • Perform all other office tasks needed by Owner

Qualifications:

  • Previous experience in office administration or other related fields
  • Ability to prioritize and multitask
  • Excellent written and verbal communication skills
  • Strong attention to detail
  • ​Strong organizational skills
  • excel
  • data input
  • detail oriented
  • follow skills
  • friendly personality

This job comes with the following

payed sick days

payed 3 dat holidays

Vacation pay

And it has room to grow and make bonus

Company Description

We are the largest trailer company in the LA and Orange county area. We have grown by providing great customer service and strive for customer satisfaction.