Full Time Desktop Administrator Jobs in Riverside, CA

Why this role matters

We’re a fast-moving construction subcontractor that thrives on doing the right thing—safely, professionally, and as a team. We’re hiring an Office & Accounting Administrator who will anchor our back office: payroll, A/R, A/P, billing, contract admin, insurance/OCIP, and core HR—while modeling a positive, safety-first culture.

What you’ll do

Culture, Professionalism & Safety

• Show up with a consistently positive, can-do attitude; build up teammates; communicate kindly with clients and coworkers; avoid sarcasm/negativity.

• Maintain professional behavior and polished physical presentation.

• Keep work areas neat, clean, and safe; use required PPE (safety glasses, masks/respirators when needed, hearing/eye/hand protection, back support, welding PPE, etc.).

• Participate in safety and skills training; plan work to minimize overtime; be on time and ready to work.

• Follow through—if you agree to an action, you complete it.

Effort, Teamwork & Decision-Making

• Deliver high-quality work and give full effort on company time.

• Seek additional learning to improve your effectiveness; ask for guidance when needed.

• Help others succeed—even outside your strict job description.

• Make choices for the company’s greater good; weigh ROI on expenditures.

Payroll & HR Administration

• Review daily reports/time cards for completeness and accuracy.

• Manage PTO accrual/usage; ensure timely payroll funding to avoid bank charges.

• Prepare and submit certified payroll as required.

• Support HR lifecycle: hire and dismissal paperwork, employee files, drug-screen schedules/records, DMV records, individual health insurance enrollments, company 401(k) administration.

Accounting: A/R, A/P, Reconciliations & Reporting

• Accounts Receivable: Build positive client relationships; manage collections; ensure all invoices are accepted within 30 days.

• Accounts Payable: Update QuickBooks daily; digitize/organize vendor paperwork; prioritize critical payments to avoid business interruptions.

• Reconciliations: Perform weekly bank/credit card reconciliations; log expense receipts in QuickBooks; publish a weekly Financial Flash Report.

Billing & Contract Administration

• Maintain billing calendars; submit complete, accurate billings on time; confirm acceptance.

• Prepare full contractor application packages with all required forms.

• Track prioritized approval lists; send weekly update emails; process contracts and change orders promptly.

Insurance & OCIP

• Coordinate standard COIs and endorsements; manage OCIP enrollments, compliance docs, and monthly reporting.

What you bring

• 3–5+ years in construction bookkeeping/office admin (subcontractor experience a plus).

• Proficiency with QuickBooks (Online or Desktop), spreadsheets, and digital document workflows.

• Working knowledge of certified payroll, AIA billing/progress billings, and lien releases.

• Familiarity with contracts, change orders, insurance/OCIP, and basic HR processes.

• Clear, courteous communicator; organized, detail-driven, and dependable.

• Safety-first mindset; punctual; strong follow-through.

• Growth mindset—eager to learn new tools, processes, and industry requirements.

Nice to have: Construction compliance experience (prevailing wage/DIR), basic knowledge of OSHA/PPE requirements, experience with project management or ERP systems.

Schedule & benefits

• Schedule: Full-time, on-site; overtime only as absolutely necessary (we plan to avoid it).

• Benefits: Health insurance, 401(k), PTO/holidays, training & development.

How we make decisions

We choose what’s best for the company and our clients—even when it’s harder in the short term. We plan carefully to control costs, and deliver quality work the first time.

Ready to apply?

Submit your resume (and a brief note on relevant construction/AP/AR/certified payroll experience). On ZipRecruiter, click Apply and include:

• A 3–5 sentence summary of your construction accounting background

• Your QuickBooks proficiency (O/D, years, typical workflows)

• Availability and target compensation

We are an equal opportunity employer. We celebrate diversity and are committed to a respectful, safe, and inclusive workplace.