Top 591 Administrative assistant Jobs in Ontario, Ca

Administrative Assistant
Evolution Mechanical, Inc —Corona, CA
- $20 - $25 an hour
- Full-time
- Customer service
- Office
- Organizational skills
- Paid holidays
- Health insurance
Quick Apply
Client Service Analyst
Langwasser & Co, CPA's —Upland, CA
- $23 - $25 an hour
- Extended hours
- Background check
- Microsoft Outlook
- Pass drug screening
- Paid holidays
- Health insurance
Quick Apply
Office Assistant
JCR LOGISTICS —Ontario, CA
- $20 - $25 an hour
- Full-time
- Microsoft Excel
- Customer service
- Administrative experience
- Health insurance
- 401(k)
Quick Apply
Office Assistant
Banana Education Inc —Diamond Bar, CA
- $18 - $22 an hour
- Full-time
- Office
- Bachelor's degree
- US work authorization
- Paid time off
- Parental leave
Quick Apply
2d
General Contractor Office Assistant & Payroll
General Contractor —Anaheim, CA
- $22 - $30 an hour
- Full-time
- Microsoft Word
- Spanish
- Microsoft Excel
- Health insurance
- Dental insurance
Quick Apply
Administrative Assistant
Superior Court of California, County of Riverside —Riverside, CA
- $30.23 - $39.96 an hour
- Online Application
- Background check
- Microsoft Outlook
- Customer service
- AD&D insurance
- Paid holidays
1d
Administrative Assistant
CEVA Contract Logistics U.S., Inc. —Fontana, CA
- $23.50 an hour
- Full-time
- Mid-level
- Administrative experience
- Project management
- Health savings account
- Health insurance
Quick Apply
Social Work Assistant
Dignity Adult Day Health Care Center —Montclair, CA
- $20 - $22 an hour
- Part-time
- Computer literacy
- Administrative experience
- Bachelor's degree
- 401(k)
Quick Apply
Administrative Assistant
Sawin Academies Norco Inc —Norco, CA
- From $22 an hour
- 8 hour shift
- School experience
- Spanish
- Google Workspace
- Paid holidays
- Health insurance
Quick Apply
1d
Administrative Assistant
Sea To Land Logistics —Ontario, CA
- $22 - $26 an hour
- Customer service
- Research
- Office
- Health insurance
- Dental insurance
Quick Apply
Administrative Assistant
Inland Pacific Roofing Co Inc —Upland, CA
- $20 - $25 an hour
- Part-time
- Microsoft Word
- Microsoft Outlook
- Writing skills
- Health insurance
- Paid time off
Quick Apply
Office Specialist (Full-time & Part-time)
City of Ontario, CA —Ontario, CA
- $4,969.47 - $6,037.20 a month
- Temporary
- Pass drug screening
- No experience needed
- Office
- Retirement plan
5d
Administrative Assistant
University of California, Riverside —Riverside, CA
- $32.74 - $52.32 an hour
- Full-time
- Microsoft Excel
- Microsoft Outlook
- Mid-level
Receptionist/Administrative Assistant
Ingredients By Nature —Montclair, CA
- Full-time
- Background check
- Google Workspace
- Inventory management
- Health insurance
- Dental insurance
Quick Apply
Administrative Assistant, Student Disability Resource Center
The Claremont Colleges Services —Claremont, CA
- $22.00 - $24.50 an hour
- Full-time
- Microsoft Word
- Microsoft Outlook
- Computer literacy
- Health insurance
- Dental insurance
Temp Administrative Assistant III
Western University of Health Sciences —Pomona, CA
- $27.85 an hour
- Weekends as needed
- Background check
- Mid-level
- Office
- Paid time off
- Retirement plan
Administrative Coordinator
AMS Restoration inc —Chino, CA
- $22 - $30 an hour
- Full-time
- Background check
- Google Workspace
- Computer literacy
- 401(k) matching
Quick Apply
Receptionist/Office Assistant
Bright Bulbs Electric Co Inc —Upland, CA
- $18 - $21 an hour
- Full-time
- Google Workspace
- Microsoft Excel
- Microsoft Outlook
Quick Apply
9d
Administrative Assistant I or II
Sturgeon Electric California —Chino Hills, CA
- $40,000 - $60,000 a year
- Full-time
- Microsoft Word
- Background check
- Office
- Profit sharing
- AD&D insurance
2d
Administrative Assistant III
Western University of Health Sciences —Pomona, CA
- $22.60 - $23.06 an hour
- Weekends as needed
- Bilingual
- Background check
- Microsoft Outlook
- Paid time off
- Retirement plan

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Administrative Assistant

Evolution Mechanical, Inc -
Corona, CA

Quick Apply

Job Details

Full-time
$20 - $25 an hour

Benefits

Paid holidays
Health insurance
Dental insurance
401(k)
Paid time off
Vision insurance

Qualifications

Record keeping
Phone communication
Customer service
Dispatching
Attention to detail
Organizational skills
Office phone management

Full Job Description

EVOLUTION MECHANICAL

Administrative Assistant — HVAC Service Department

Commercial HVAC | Corona, California | Full-Time

On-Site / In-Person — this is NOT a remote or virtual role | $20–$25/hr (depending on experience)

This Isn't a Desk Job. It's a Launchpad.

Why You'll Want to Work Here

We Invest in the Whole Person. Not just the employee — the person. We care about who you're becoming, not just what you produce. Faith, family, fitness, finances, and foundation come first here, and we mean it.
You're Joining a Tribe, Not a Payroll. We've built a culture where people have each other's backs, push each other to be better, and actually enjoy showing up. No politics. No dead weight. Just A-players who execute.
Real Growth, Not Lip Service. This is an ascension role by design. Crush it at the front desk and you've got a clear path into dispatch, coordination, or sales. We'd rather promote the hungry person who proved it than hire a stranger.
An Owner Who Operates From Ownership. Evolution isn't run on chaos and heroics. It runs on systems, standards, and accountability — which means you get to do your best work without the dysfunction that plagues most shops in this trade.
Stability + Momentum. 20+ years in business, scaling fast, and consistent work. You get the security of an established company with the energy of one that's going somewhere.
A Standard Worth Rising To. We don't tolerate mediocrity, and we don't expect you to either. People who want to be great thrive here. People who want to coast don't last. That's by design — and it's why the team is so good.

What We Offer

$20–$25 per hour, depending on experience
Medical, dental, and vision benefits
401(k)
One week of paid vacation
All standard paid holidays
A clear path to advance into Service Dispatcher, Service Coordinator, or Sales

What You'll Actually Do

This is a high-velocity, heavy-phones role supporting our service department. You'll be in the middle of the action every day:

Answering a high volume of inbound calls and being the welcoming, professional first voice clients hear
Supporting our service department and dispatchers (“desk catchers”) to keep the day moving
Helping prepare and follow up on quotes
Following up with clients and keeping communication tight
Scheduling calls and coordinating the flow of service work
Keeping details organized, accurate, and nothing falling through the cracks

What We Need From You

A strong personality. You're confident on the phone, you don't get rattled, and people like dealing with you.
High attention to detail. You catch what others miss. Sloppy isn't in your vocabulary.
High velocity. You move fast, you stay organized under pressure, and you thrive in a busy environment.
Hunger. You want to grow — into dispatch, coordination, or sales — and you're willing to earn it.
Strong communication and organizational skills, comfort with phones and computers, and a great attitude.

Prior HVAC, trades, or service-industry experience is a plus — but the right personality and drive matter more.

Who We Are

Evolution Mechanical is a commercial HVAC company that's been built the hard way — by tradespeople, for tradespeople — since 2003. We're not private equity backed. We're not run by suits in a boardroom. We're a family-built operation scaling toward $100M, and we've kept our culture tight every step of the way.

Here's the truth most companies won't tell you in a job ad: we don't hire seat-fillers. We hire hungry people and we build them into something bigger. The person who lands this role isn't going to be answering phones forever — this is the front door to a real career. Service Dispatcher. Service Coordinator. Sales. We promote from within, and this seat is where future leaders get their start.

If you want to clock in, stay invisible, and clock out — this is the wrong company. If you want to be developed, challenged, and given a runway to grow as fast as you can handle, keep reading.

Ready to Grow With Us?

If you're hungry, sharp, and ready to build a real career — not just take a job — we want to hear from you.

Apply today and become part of the Evolution Mechanical tribe.

Pay: $20.00 - $25.00 per hour

Benefits:

401(k)
Dental insurance
Health insurance
Paid time off
Vision insurance

Work Location: In person

Quick Apply

Refine Your Search

administrative assistant jobs in ontario, ca

Administrative Assistant

Client Service Analyst

Office Assistant

Office Assistant

General Contractor Office Assistant & Payroll

Administrative Assistant

Administrative Assistant

Social Work Assistant

Administrative Assistant

Administrative Assistant

Administrative Assistant

Office Specialist (Full-time & Part-time)

Administrative Assistant

Receptionist/Administrative Assistant

Administrative Assistant, Student Disability Resource Center

Temp Administrative Assistant III

Administrative Coordinator

Receptionist/Office Assistant

Administrative Assistant I or II

Administrative Assistant III

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