Office Assistant Asistente de OM

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

Job Description

Job Description

** About JCC**

John Christopher Construction is a growing general contractor in Orange County with four in‑house divisions — Framing, Electrical, Plumbing, and Finish Carpentry — and an expanding Property Management division. We’re looking for an organized, proactive Office Assistant to support our Office Manager and keep our front office, billing coordination, and compliance tracking running smoothly.

** Front Office & Client Communication** Answer incoming calls and route them appropriately — new leads, subcontractors/vendors, or existing clients. Take down complete information on new leads (contact info, job scope, plans) and get them entered correctly into our project management system (JobTread). Follow up with clients and keep them updated on their project status.

** Billing & Financial Coordination** Process incoming invoices — check for duplicates, upload for approval, and follow up with Project Managers on pending items. Run weekly reports (AR Aging, bills/expenses) and generate outgoing payment wires using our existing in‑house tools. Track subcontractor compliance documents (W9s, COIs, licenses) and request insurance endorsements as needed. Note: this role supports the bookkeeping process with documentation and data confirmation — it does not include data entry or management of QuickBooks (QBO), which is handled by our bookkeeping team.

** Payroll & Timesheet Support** Make sure every employee’s time is logged correctly each week, follow up on missing entries, and have payroll reports ready on schedule.

** HR & Compliance Support** Prepare new‑hire paperwork packets and keep employee files (physical and digital) organized and current. Track upcoming renewal deadlines for insurance, business licenses, bonds, and vehicle registrations and flag them in advance (final renewals/approvals are handled by the Office Manager).

** Document & Systems Organization** Scan and file all physical documents into the right digital folders. Keep JobTread project records clean and current — plans, permits, inspection records, and vendor information.

** General Support** Provide flexible support to the Office Manager on quotes, estimates, and other assigned tasks as priorities shift.

** What We're Looking For**

• 1 + years of office/administrative experience — construction industry experience is a plus but not required
• Able to manage multiple phone calls, emails, and follow‑ups at once while staying organized and on top of every detail
• Strong attention to detail — this role touches billing and compliance documents where accuracy matters
• Organized and able to keep multiple ongoing processes on track without close supervision
• Comfortable learning new software (we use JobTread, QuickBooks Online, Slack, Google Drive)
• Bilingual English/Spanish is not required, but is a plus
• Reliable and trustworthy — this role has visibility into sensitive company and financial information

** What We Offer**

• Competitive pay based on experience
• $25/month phone reimbursement
• Simple IRA retirement plan with company match (once eligibility requirements are met)

We’re not just filling a position — we’re building a team that takes pride in doing things right, keeps this company organized as it grows, and wants to grow along with it. If you’re detail‑oriented, dependable, and looking for a role where your work is actually seen and valued — not just a job —.

** Interview Schedule:** Interviews are held Tuesday, Wednesday, and Friday from 3:00–5:00 PM. First interviews are via Zoom; qualified candidates are invited for an in‑person follow‑up.

Company Description

Join a fast-growing Orange County–based construction company known for delivering high-quality residential remodels, ADUs, and commercial tenant improvement projects.
At John Christopher Construction, we value teamwork, integrity, and craftsmanship. We are a company in an active growth and expansion phase, and we are looking for motivated professionals who take pride in their work and are eager to contribute ideas, processes, and leadership that support long‑term success.

At John Christopher Construction, we value teamwork, integrity, and craftsmanship. We are a company in an active growth and expansion phase, and we are looking for motivated professionals who take pride in their work and are eager to contribute ideas, processes, and leadership that support long‑term success.

Company Description

Join a fast-growing Orange County–based construction company known for delivering high-quality residential remodels, ADUs, and commercial tenant improvement projects.
At John Christopher Construction, we value teamwork, integrity, and craftsmanship. We are a company in an active growth and expansion phase, and we are looking for motivated professionals who take pride in their work and are eager to create ideas, processes, and leadership that support long‑term success.