1

Senior Administrative Assistant Jobs in Riverside, CA

Administrative Assistant

Walnut, CA · On-site

$18.25 - $24.75/hr

Waste Connections has an immediate opening for an Administrative Assistant to support daily operations at our landfill Walnut, MS. Responsibilities * Minimum of 2 years of previous administrative or ...

Administrative Assistant

Walnut, CA · On-site

$18.25 - $24.75/hr

Waste Connections has an immediate opening for an Administrative Assistant to support daily operations at our landfill Walnut, MS. Responsibilities * Minimum of 2 years of previous administrative or ...

As an Administrative Assistant at CuraPatient, you'll be in our Operations Department. Reporting to the CEO, the Administrative Assistant will play a central role in the daily operations of our ...

Administrative Assistant

Irvine, CA · On-site

$25 - $30/hr

As an Administrative Assistant at CuraPatient, you'll be in our Operations Department. Reporting to the CEO, the Administrative Assistant will play a central role in the daily operations of our ...

Administrative Assistant

Irvine, CA · On-site

$32 - $40/hr

As an Administrative Assistant at CuraPatient, you'll be in our Operations Department. Reporting to the CEO, the Administrative Assistant will play a central role in the daily operations of our ...

Administrative Assistant

Irvine, CA · On-site

$32 - $40/hr

As an Administrative Assistant at CuraPatient, you'll be in our Operations Department. Reporting to the CEO, the Administrative Assistant will play a central role in the daily operations of our ...

Administrative Assistant

Irvine, CA · On-site

$32 - $40/hr

As an Administrative Assistant at CuraPatient, you'll be in our Operations Department. Reporting to the CEO, the Administrative Assistant will play a central role in the daily operations of our ...

Administrative Assistant

Riverside, CA · On-site

$18.75 - $25.25/hr

As an Administrative Assistant, you'll be at the heart of our operations, ensuring everything runs smoothly and efficiently. You'll work closely with the business owner, managing communications ...

Administrative Assistant

Claremont, CA · On-site

$20 - $22.25/hr

Administrative Assistant PRIMARY PURPOSE/GENERAL DESCRIPTION: Reporting to the Director of Enrollment Strategies & Operations, the Administrative Assistant is expected to provide quality customer ...

Administrative Assistant PRIMARY PURPOSE/GENERAL DESCRIPTION: Reporting to the Director of Enrollment Strategies & Operations, the Administrative Assistant is expected to provide quality customer ...

Showing results 41-60

Senior Administrative Assistant information

See Riverside, CA salary details

$14

$28

$46

How much do senior administrative assistant jobs pay per hour?

As of Sep 5, 2026, the average hourly pay for senior administrative assistant in Riverside, CA is $28.49, according to ZipRecruiter salary data. Most workers in this role earn between $22.31 and $32.60 per hour, depending on experience, location, and employer.

What is a senior administrative assistant?

A senior administrative assistant performs office duties for one or more upper-level executives. Job duties often include answering the phone, scheduling meetings, and greeting office visitors. A senior administrative assistant may also coordinate events, make travel arrangements, or supervise junior executive assistants. Qualifications for this career include prior experience as an assistant or in an office environment and attention to detail.

How does a senior administrative assistant typically collaborate with executives and other team members?

A Senior Administrative Assistant often acts as a key liaison between executives and other staff, managing schedules, coordinating meetings, and facilitating communication. They frequently handle confidential information and prioritize tasks to ensure that leadership’s time is used efficiently. Collaboration often extends to supporting multiple departments, organizing cross-functional projects, and streamlining workflows to improve overall office efficiency. This role requires strong interpersonal skills and the ability to adapt quickly to changing priorities in a dynamic team environment.

What are the key skills and qualifications needed to thrive as a senior administrative assistant, and why are they important?

To thrive as a Senior Administrative Assistant, you need strong organizational abilities, attention to detail, and proficiency in office management, usually supported by relevant experience or an associate degree. Expertise in Microsoft Office Suite, calendar management systems, and sometimes project management tools or certifications like CAP (Certified Administrative Professional) is highly valued. Excellent communication, multitasking, and problem-solving skills help you stand out in this role. These qualities are essential for efficiently supporting executives, managing complex schedules, and ensuring smooth office operations.

What is the difference between Senior Administrative Assistant vs Administrative Assistant?

AspectSenior Administrative AssistantAdministrative Assistant
CredentialsTypically requires 3+ years experience, relevant certifications (e.g., Microsoft Office Specialist)Entry-level, often no formal certifications required
Work EnvironmentSupports multiple departments, handles complex tasks, may supervise junior staffPerforms basic clerical duties, supports a single department or team
Employer & Industry UsageCommon in corporate, healthcare, legal sectorsWidespread across various industries, including retail and education

The main difference is that a Senior Administrative Assistant has more experience, handles more complex tasks, and may supervise others, whereas an Administrative Assistant performs basic clerical duties with less experience required.

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

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

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

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

Infographic showing various Senior Administrative Assistant job openings in Riverside, CA as of August 2026, with employment types broken down into 56% Full Time, 38% Part Time, and 6% Contract. Highlights an 100% In-person job distribution, with an average salary of $59,255 per year, or $28.5 per hour.

Administrative Assistant

COMMUNITY SOLUTIONS INC

Fontana, CA • On-site

$24.04/hr

Full-time

Medical, Dental, Vision, Life, Retirement

Posted 8 days ago


Job description

Community Solutions, Inc. is seeking a dedicated and passionate Administrative Assistant to join our team at our new Multi-Dimensional Anti-Recidivism Partnership (MAP) located in West Valley, CA. Adult MAP is an innovative program dedicated to engaging the community and providing rehabilitative programming for justice-involved individuals. We focus on promoting long-term, self-sustaining skills through vocational training and personal development services. This unique model hosts a variety of sub-contractors at one site to reduce barriers for clients.  As an Administrative Assistant at our MAP programs, you will be working closely with the Program Director, providing re-entry services to a criminal justice impacted population.  You will be responsible for computerized facility information and will complete reports as needed/directed.

Essential Responsibilities:

  • Provide overall administrative support, including but not limited to: incoming calls, faxes, incoming and outgoing mail.
  • Assist manager in various projects including, but not limited to: budget development, contract proposals, proposal writing, grant requests and new initiatives. Organize and maintain up-to-date and orderly assigned office files, and continually record and update information.
  • Computerize Agency information and complete reports as needed or directed.
  • Compile quarterly and annual statistics.
  • Handle outside inquires and staff requests regarding department issues as assigned.
  • Write letters and other correspondence as assigned.
  • Research and compile information in areas of office management such as pricing of office supplies, printing, posting, and office equipment.
  • Maintain an inventory of office/program supplies, order as required.
  • Assist Manager in monitoring department information and other assigned weekly, monthly and quarterly reporting.
  • Maintain a working knowledge of and abide by the Agency’s programs, policies, and procedures.
  • Perform other duties as assigned by the supervisor.

Schedule: Monday-Friday 9:00am-5:00pm (This schedule is subject to change, based on the needs of the program)

Hourly Rate: $24.04

Qualifications:

  • A Bachelor’s Degree plus one year of Administrative experience. (Education may be substituted with relevant experience on a one year for one year basis.)
  • Must have experience with Microsoft Word, Excel, Access, Windows, and Outlook.

 Benefits: 

  • Two (2) weeks’ vacation accrued within the first year, bumped to three (3) weeks accrual after 1 year of service.
  • Sick time (7 days accrual basis), floating holiday time (4 days/year).
  • Medical and Dental plans.
  • Voluntary plan options for: Vision, FSA, voluntary STD, Accident, Hospital, Life insurance and AD&D.
  • 401(k) Retirement savings plan with automatic enrollment and a company match of 100% up to 4% of your contribution.
  • Tuition reimbursement after 1 year service.
  • Ongoing training.

Company Overview

Community Solutions Inc. (CSI) is a nonprofit organization that promotes the responsible citizenship, accountability, and well-being of individuals and families involved, or at risk of involvement, in the child welfare, juvenile justice, or criminal justice system. Since CSIs founding in 1962, it has been a pioneer in the community-based service. We have been delivering supervision, treatment, and comprehensive individualized services to help clients interact more effectively in their communities and become productive citizens. Using this plan we built the first ever halfway house in New England which has now been replicated and grown to almost 50 programs in 9 states. For over 50 years, CSI has been building upon its successful foundations and has been expanding its services to serve thousands of adults, youth, and families each year. 

CSI understands clients and staff have been impacted by trauma.  CSI is becoming a trauma-informed organization by hiring individuals with existing experience in trauma-informed practices as well as supporting ongoing staff development with trauma-informed practices.  This will include learning to recognize symptoms of trauma and how to respond, through training starting at orientation and throughout their career at CSI.  CSI is committed to systematically evaluating the integration of the trauma-informed values of safety, trustworthiness, choice, collaboration, and empowerment at all levels of the organization's policies, procedures, and structures to guard against the possibility of re-traumatization. To learn more about Community Solutions, visit our website at: www.csi-online.org. 

CSI is an Equal Opportunity Employer – M/F/Disability/Vet. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability status, protected veteran status, or any other characteristic protected by law.