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Administrative Assistant

Staffmark Group
$20.00-$30.00
life insurance, paid holidays
United States, California, Ontario
Mar 03, 2026

Now hiring Administrative Assistant

Ontario, CA

Pay Rate: $20.00 - $30.00 per hour

Shift: Between 8:00 AM - 5:00 PM (flexible within business hours)

You Know Every Answer Before We Ask the Question

You know what we need before we even ask. That's your superpower. As an Administrative Assistant in Ontario, you're the mind reader of the office, organizing, anticipating, and handling every detail before it hits the radar. You keep things smooth, stress-free, and totally on point.

What Makes You the One.



  • High school diploma or GED required; associate degree preferred
  • 1-5 years of experience supporting busy office environments
  • Proficiency with Word, Excel, and Outlook
  • Stellar attention to detail and time management
  • Friendly, professional demeanor and calm energy


A Day in the Life.

Your mornings start with a quick inbox sweep and a look at the day's schedule. You'll line up meetings, prepare materials, and handle calls or emails that pop up. You'll help the team stay focused, organized, and on time-all while keeping the atmosphere upbeat. When things get busy, you're the one who brings order to the chaos.

More Than Just a Paycheck



  • Right in the Mix. Work side by side with a team that appreciates what you do.
  • Pay That Adds Up. Competitive weekly pay for your time and talent.
  • Health and Happiness. Medical, dental, vision, and life insurance included.
  • Everyday Extras. Employee discounts that make life a little easier.
  • Growth Ahead. Learn, advance, and keep moving forward.


"I enjoy working on my assignment. If I have a problem, I can always count on the staff to help fix the issues I'm having or lead me in the right direction. They are very helpful and always there when needed." - Administrative Assistant, Staffmark

Take the next step. We're ready when you are. Apply Now.

Join a Team That Works for You

At Staffmark, we're more than just a staffing company-we're your career partner. As part of RGF Staffing and Recruit Group, anHR powerhouse behind big names like Indeed and Glassdoor, we've got the muscle and the know-how to get you where you want to go.

With more than half a century of experience and a track record of putting hundreds of thousands of people to work every year, we've got your back. Whether you're looking to level up, switch gears, or just get to work fast, we make it happen.

Join us and experience the advantage of working with a trusted name in recruiting-because your success is our success.

The base pay range listed reflects what we reasonably expect to offer for this role. Actual pay may vary based on location, experience, and performance. Depending on the position, benefits may include medical, dental, and vision coverage; retirement and savings plans; paid holidays and time off; supplemental insurance; and additional wellness or incentive programs.

After you have applied, download our Staffmark Group WorkNOW App to receive real-time job offers and apply for additional opportunities. You can download it from the App Store or get it on Google Play.


About Us

At Staffmark, we connect hardworking people with great companies, creating opportunities that make a lasting impact.

Staffmark is an equal opportunity employer. Allapplicants will receive consideration without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or veteran status, or any other legally protected status. Staffmark offers reasonable accommodations for qualified individuals with disabilities; contact your local branch for inquiries. Staffmark is an E-Verify employer. See our Privacy Notice for Candidates and Employees/Contractors at https://smgroupna.com/privacy-notice-for-candidates-and-employees-contractors. By applying, you consent to receive AI-generated and non-AI-generated calls, texts, or emails from Staffmark Group, its affiliates, and partners. Frequency varies and message/data rates may apply. Reply STOP to cancel or HELP for help.

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