Office Manager / Office Administrator (Temp-to-Hire)

Reed Thomas Co., Inc. | Orange County, CA
Pay: Up to $45/hour
Schedule: Full-Time
Employment Type: Temp-to-Hire

About Reed Thomas Co., Inc.

For more than 40 years, Reed Thomas Co., Inc. has built a reputation as one of Southern California's most respected engineering and grading contractors. Established in 1981, Reed Thomas specializes in a wide range of grading and site development services, including residential and commercial mass grading, parks, golf courses, street improvements, commercial developments, and custom home sites.

Our commitment to quality, precision, and customer service has made us a trusted partner throughout Southern California. We invest heavily in state-of-the-art technology, modern equipment, and experienced professionals to ensure projects are completed safely, efficiently, on time, and within budget.

As our team continues to grow, we are seeking a highly organized and proactive Office Manager to oversee day-to-day office operations and support accounting, payroll, HR, and administrative functions.

Position Overview

This is a hands-on role for an experienced construction office professional who enjoys wearing multiple hats and thrives in a fast-paced environment. The Office Manager will serve as the operational hub of the office, supporting accounting, payroll, HR administration, vendor management, licensing, and general office operations.

The ideal candidate is a self-starter who can work independently, prioritize competing responsibilities, and keep critical business processes running smoothly with minimal supervision.

Key Responsibilities

Accounting & Financial Administration

• Process accounts payable and accounts receivable
• Prepare invoices, track payments, and assist with collections
• Reconcile vendor statements and resolve discrepancies
• Maintain accurate accounting records and documentation
• Support month-end and year-end accounting activities
• Coordinate with external CPA and accounting partners as needed

Payroll Administration

• Process in-house payroll for approximately 28 employees using Paychex
• Maintain payroll records and employee data
• Track employee hours, PTO, and payroll-related documentation
• Ensure compliance with wage and hour requirements

Human Resources & Employee Administration

• Manage employee onboarding and new hire paperwork
• Coordinate employee files and HR documentation
• Assist with benefits administration and employee communications
• Support hiring activities, background checks, and employment verifications
• Maintain compliance with employment regulations and company policies

Construction Administration

• Set up new projects, customers, and vendor accounts
• Manage subcontractor and vendor documentation
• Process business license applications and renewals
• Coordinate city, county, and agency requests
• Maintain insurance certificates and compliance records
• Assist with contract and project-related administrative support

Office Operations

• Manage daily office activities and administrative functions
• Answer phones and provide professional customer service
• Order office supplies and coordinate office needs
• Maintain organized filing systems and company records
• Support ownership and field personnel with administrative requests
• Help create efficient processes and improve office workflows

Qualifications

• 5+ years of recent experience in office management, office administration, accounting, HR, or construction administration
• Construction industry experience strongly preferred
• Experience processing payroll through Paychex or a similar payroll platform
• Strong accounts payable and accounts receivable experience
• Familiarity with employee onboarding and HR administration
• Experience with vendor setup, business licenses, insurance certificates, and construction-related documentation
• Proficiency with Microsoft Office (Excel, Word, Outlook)
• Excellent organizational and time management skills
• Strong attention to detail and follow-through
• Ability to work independently and take ownership of responsibilities
• Professional communication skills and a customer-service mindset

What We're Looking For

We're seeking someone who is dependable, resourceful, and comfortable being the go-to person in the office. This role is ideal for a seasoned construction office professional who enjoys variety, takes initiative, and can confidently manage accounting, payroll, HR, and administrative functions with minimal oversight.

If you're looking for a stable opportunity with a well-established Southern California contractor and enjoy making a meaningful impact in a small-team environment, we'd love to hear from you.

Compensation: Up to $45/hour DOE
Schedule: Full-Time
Status: Temp-to-Hire
Location: Orange County, CA

Apply today to join a company built on quality, integrity, and decades of industry success.