Construction Office Assistant: Billing & Compliance Support

John Christopher Construction, Inc; Anaheim (CA); On-site; USD 42,000 - 56,000; Full time

Benefits offered by this job

Competitive pay based on experience

$25/month phone reimbursement

Simple IRA retirement plan with match

Job summary

John Christopher Construction, Inc is seeking an organized Office Assistant to support the Office Manager and ensure the front office, billing coordination, and compliance tracking run smoothly.

The role covers front office & client communication, billing & financial coordination, payroll & timesheet support, HR & compliance, and document management using JobTread, QuickBooks Online, Slack, and Google Drive. This position is based in Orange County, California.

Qualifications

• 1+ years of office/administrative experience; construction industry a plus
• Ability to manage multiple phone calls, emails, and follow-ups while staying organized
• Strong attention to detail due to billing and compliance documents
• Organized and able to manage multiple ongoing processes with minimal supervision
• Willingness to learn new software (JobTread, QuickBooks Online, Slack, Google Drive)
• Bilingual EN/ES is a plus but not required
• Reliable and trustworthy with visibility into sensitive information

Responsibilities

• Answer incoming calls and route them appropriately to leads, subcontractors/vendors, or clients
• Enter new lead information (contact details, job scope, plans) into JobTread
• Process invoices, check duplicates, upload for approval, and coordinate with Project Managers
• Run AR aging and bill/expense reports and generate wires using in-house tools
• Track subcontractor documents (W9s, COIs, licenses) and request insurance endorsements
• Ensure payroll timekeeping is accurate and payroll reports are prepared on schedule
• Prepare new-hire paperwork and maintain employee files (physical and digital)
• Track renewal deadlines for insurance, licenses, bonds, and vehicle registrations
• Scan and organize documents, keep project records clean in JobTread
• Provide flexible support to the Office Manager on quotes and estimates

Skills

Office experience

Multi-tasking

Attention to detail

Organized

Software learning

Bilingual (EN/ES)

Reliability

Tools

JobTread

QuickBooks Online

Slack

Google Drive

Job description

John Christopher Construction, Inc is seeking an organized Office Assistant to support the Office Manager and ensure the front office, billing coordination, and compliance tracking run smoothly.

The role covers front office & client communication, billing & financial coordination, payroll & timesheet support, HR & compliance, and document management using JobTread, QuickBooks Online, Slack, and Google Drive. This position is based in Orange County, California.