Office Manager - Commercial Construction / Plumbing Weiss Plumbing Costa Mesa, CA Job Details Part-time | Full-time $25 - $30 an hour 3 hours ago Benefits Flexible schedule Retirement plan Qualifications Customer communication Administrative experience High school diploma or GED Attention to detail QuickBooks Productivity software Office management Time management Full Job Description About WC Plumbing WC Plumbing, Inc. is a growing commercial plumbing contractor serving Southern California. We work in a fast-paced construction environment and support projects across commercial, retail, restaurant, airport, industrial, and public works markets. We are looking for an experienced Office Manager to run the day-to-day office operations and work directly with the owners. This is a solo office role , so the right person must be organized, dependable, self-sufficient, and comfortable taking ownership of responsibilities without constant supervision. This position is best suited for someone who is proactive, learns quickly, and has a "no task is too small" attitude. Primary Responsibilities Manage day-to-day office operations and administrative workflow Maintain and manage company records in QuickBooks Handle invoicing, accounts receivable, accounts payable, and basic financial tracking Assist with job costing and project-related financial records Coordinate schedules, meetings, project deadlines, and field activities Maintain customer, vendor, subcontractor, and project files Assist with construction bidding and estimating systems Track bid invitations, bid due dates, and project opportunities Download, organize, and distribute plans, specifications, addenda, and related bid documents Review construction plans and assist with identifying plumbing-related information Support project setup and closeout documentation Maintain insurance, licensing, vendor, and compliance records Communicate professionally with general contractors, vendors, customers, and field personnel Assist with purchase orders, change orders, proposals, and project correspondence Help maintain organized digital and physical filing systems Perform general administrative duties as needed Required Qualifications High school diploma or equivalent Extensive hands-on QuickBooks experience Strong Microsoft Office and general computer skills Excellent organizational and time-management skills Strong written and verbal communication skills Ability to manage multiple priorities in a fast-paced environment High level of attention to detail Ability to work independently and make sound day-to-day decisions Reliable, professional, and accountable Comfortable learning new software and systems quickly Must be able to work on-site in Costa Mesa Construction Experience Is a Plus The following experience is preferred, but not required: Commercial construction office experience Plumbing, mechanical, or subcontractor experience Construction estimating or bidding software Reading construction plans and specifications Job costing Prevailing wage or public works documentation Certified payroll Purchase orders and change orders General contractor or subcontractor coordination What We Are Looking For We are looking for someone who: Takes ownership of their work Does not need to be micromanaged Is comfortable working directly with company ownership Can prioritize quickly when multiple projects require attention Is willing to handle both high-level responsibilities and routine administrative tasks Communicates clearly and professionally Notices problems before they become larger issues Wants to grow with a growing company Compensation $25.00-$35.00 per hour , based on experience and qualifications. Schedule is generally Monday through Friday, 8:00 AM to 5:00 PM , with approximately 30-40 hours per week . Work Location This is an on-site position at: WC Plumbing, Inc. 1346 Logan Ave Costa Mesa, CA 92626 Remote work is not available for this position. How to Apply Please submit your resume along with a brief summary of your: QuickBooks experience Office management experience Construction industry experience, if applicable Availability to start Immediate availability is preferred.

Pay:

$25.00 - $30.00 per hour Expected hours: 30.0 - 40.0 per week

Benefits:

Flexible schedule Retirement plan

Work Location:

In person