Top 187 Office administrator Jobs in Tustin, Ca

Construction Office Administrator
Moalej Builders, Inc. —Irvine, CA
- $22 - $29 an hour
- Full-time
- Microsoft Excel
- Microsoft Outlook
- Mid-level
- Mileage reimbursement
- Paid holidays
Office Coordinator
Amplify People —Anaheim, CA
- $48,000 - $58,000 a year
- Full-time
- Hybrid work
- Office
- Residential
- Communication skills
- Paid holidays
- Health insurance
Quick Apply
8d
Office Administrator
X Engineering & Consulting, Inc. —Santa Ana, CA
- $55,000 - $65,000 a year
- Full-time
- Microsoft Outlook
- Mid-level
- Office
- Wellness program
- Paid holidays
Quick Apply
Office Administrator - Parttime
CALTEC Corp. —Irvine, CA
- $23 - $29 an hour
- Part-time
- Computer literacy
- Office
- High school diploma or GED
- Paid holidays
- Flexible schedule
Quick Apply
Administrative Operations Analyst
University of California, Irvine —Irvine, CA
- $32.74 - $52.54 an hour
- Full-time
- Background check
- School experience
- Microsoft Outlook
- Health insurance
- Retirement plan
6d
Administrative Specialist
University of California, Irvine —Irvine, CA
- $29.40 - $42.14 an hour
- Weekends as needed
- Background check
- Customer service
- Bachelor of Science
- Health insurance
- Retirement plan
9d
Office Manager/Executive Assistant
Scouting America Orange County Council —Santa Ana, CA
- $82,000 - $90,000 a year
- Full-time
- Microsoft Excel
- Microsoft Outlook
- Office
Quick Apply
Office Administrator
RSM-OC LLC —Irvine, CA
- $54,000 - $62,000 a year
- Weekends as needed
- Microsoft Word
- Office
- 1 year
- Health insurance
- Dental insurance
Quick Apply
Supervisor, Reception & Guest Services
University of California, Irvine —Irvine, CA
- $39.16 - $59.35 an hour
- Full-time
- Background check
- Sales
- Mid-level
- Health insurance
- Retirement plan
Office Administrator
RSM - Russian School of Mathematics —Irvine, CA
- $22 - $30 an hour
- Part-time
- Microsoft Word
- Office
- 1 year
- Health insurance
- Dental insurance
Quick Apply
1d
Office Administrator - Irvine
Motorola Solutions —Irvine, CA
- $25 - $27 an hour
- Full-time
- Background check
- Pass drug screening
- Mid-level
- Paid parental leave
- Employee stock purchase plan
14d
Administrative Assistant - Enrollment and Engagement Services
Orange Lutheran High School —Orange, CA
- Full-time
- School experience
- CPR Certification
- Google Workspace
Dental Front Office / Insurance Billing
Northpark Dental —Irvine, CA
- $25 - $32 an hour
- Part-time
- Dental office
- Administrative experience
- Pediatrics
- Dental insurance
Quick Apply
Office Coordinator
TP-Link Systems Inc. —Irvine, CA
- $52,000 - $68,640 a year
- Full-time
- Inventory management
- Mid-level
- Office
- Health insurance
- Dental insurance
Quick Apply
Administrative Manager
Front Porch —Anaheim, CA
- $73,000 - $78,000 a year
- Full-time
- Pass drug screening
- Mid-level
- Office
Office Administrator Operations
Mareblu Naturals —Anaheim, CA
- $22 - $24 an hour
- Weekends as needed
- Mid-level
- Warehouse experience
- Paid holidays
- 401(k)
Quick Apply
Workplace Coordinator
Cie —Irvine, CA
- Office
- Front desk
- 2 years
- Profit sharing
- Disability insurance
Quick Apply
Operations Coordinator
Main patrol —Irvine, CA
- $27 - $30 an hour
- Full-time
- Google Workspace
- Mid-level
- Office
Quick Apply
1d
Office Manager/Bookkeeper
Lee's Painting —Huntington Beach, CA
- $25 - $35 an hour
- Part-time
- Background check
- Mid-level
- Office
Quick Apply
7d
Office Manager - Southern California District
Kiewit Corporation —Costa Mesa, CA
- $27 - $37 an hour
- Overtime
- Microsoft Excel
- Mid-level
- Office
- Health insurance
- Dental insurance

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Construction Office Administrator

Moalej Builders, Inc.
Irvine, CA

Apply Now

Job Details

Full-time
$22 - $29 an hour

Benefits

Mileage reimbursement
Paid holidays
Dental insurance
Paid time off
Cell phone reimbursement
401(k) 4% Match
Vision insurance
401(k) matching
Paid sick time

Qualifications

Microsoft Excel
Microsoft Outlook

Full Job Description

Overview:

We are seeking a highly organized and proactive Office Administrator to support daily operations and ensure the smooth functioning of our office. In this key role, you will serve as the central point of coordination for administrative tasks, internal communication, and office efficiency. You will work closely with leadership, project managers, and field teams to maintain organization, streamline processes, and support business operations. This position is ideal for someone who thrives in a fast-paced construction environment and takes pride in keeping everything running seamlessly.

Key Responsibilities:

Office Administration
Manage daily office operations, ensuring a clean, organized, and efficient work environment
Answer and direct phone calls, emails, and general inquiries
Maintain office supplies, equipment, and vendor relationships
Coordinate incoming and outgoing mail, packages, and deliveries
Executive & Team Support
Provide administrative support to executives, project managers, and estimating team
Manage calendars, schedule meetings, and coordinate appointments
Prepare reports, correspondence, and internal communications
Assist with onboarding new employees and maintaining personnel records
Project & Operations Support
Assist with document control, filing, and organization of project files
Support project teams with administrative needs (submittals, contracts, compliance documents)
Track and organize insurance certificates, licenses, and permits
Coordinate with accounting for invoices, expense tracking, and basic bookkeeping tasks
Communication & Coordination
Serve as the primary point of contact between office staff, field teams, subcontractors, and vendors
Assist with client communication and followups
Coordinate meetings, company events, and internal initiatives
Compliance & Record Keeping
Maintain organized digital and physical filing systems
Ensure proper documentation for company operations and project requirements
Support compliance with internal processes and external requirements

Qualifications:

Proven experience as an Office Manager, Administrative Assistant, or Secretary
Strong organizational and multitasking skills with attention to detail
Excellent communication and interpersonal skills
Proficiency in Microsoft Office (Word, Excel, Outlook)
Ability to prioritize tasks and manage time effectively in a fastpaced environment
Professional demeanor and strong work ethic
Preferred Experience
Experience in construction, public works, or related industry
Familiarity with project documentation, contracts, and compliance requirements
Basic knowledge of accounting or bookkeeping processes

Compensation & Benefits:

Competitive salary (based on experience)
Training provided for entry and developing roles
Mileage reimbursement for roles requiring site visits
Phone stipend for applicable field positions
Health, Dental, and Vision Insurance
Sick Pay
Paid Time Off
Paid Vacations and Holidays
401(k) with 4% Company Match

Why Join Us:

Join a growing company where your role is essential to daily success. As the backbone of our office operations, you will play a critical role in supporting our team, improving efficiency, and contributing to our continued growth.

About Moalej Builders, Inc.

Moalej Builders is a California based Civil and Building Contractor delivering projects in Civic, Government, Transportation, Education, Infrastructure sectors.

Apply Now

Refine Your Search

office administrator jobs in tustin, ca

Construction Office Administrator

Office Coordinator

Office Administrator

Office Administrator - Parttime

Administrative Operations Analyst

Administrative Specialist

Office Manager/Executive Assistant

Office Administrator

Supervisor, Reception & Guest Services

Office Administrator

Office Administrator - Irvine

Administrative Assistant - Enrollment and Engagement Services

Dental Front Office / Insurance Billing

Office Coordinator

Administrative Manager

Office Administrator Operations

Workplace Coordinator

Operations Coordinator

Office Manager/Bookkeeper

Office Manager - Southern California District

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