AR&B; is seeking an experienced Accounts Payable Specialist to support the day-to-day financial operations of our growing mechanical construction business.
This role is responsible for the accurate and timely processing of vendor invoices and payments while helping ensure costs are properly documented, approved, coded, and recorded. The right candidate will be organized, dependable, comfortable working with a high volume of transactions, and able to communicate professionally with both vendors and employees.
The position is well suited for someone who enjoys owning their responsibilities, solving discrepancies, and becoming a trusted resource within a finance and operations team
Key Responsibilities
Manage day-to-day accounts payable processing from invoice receipt through payment.
Review invoices for accuracy, appropriate approvals, supporting documentation, and proper accounting and job-cost coding.
Match invoices to purchase orders, commitments, receipts, or other supporting documentation as applicable.




Enter and maintain accurate invoice and vendor information within the company's accounting system.
Prepare and support regularly scheduled vendor payment runs—including checks and electronic payments.
Reconcile vendor statements and proactively research missing invoices, duplicate charges, credits, and other discrepancies.
Communicate directly with vendors regarding invoices, payment status, account discrepancies, and other AP-related questions.
Maintain accurate vendor records and required documentation, including W-9 information.
Work with project managers, service, purchasing, operations, and accounting personnel to obtain approvals and resolve invoice or coding questions.
Coordinate requests for and maintain Certificates of Insurance (COIs), working with vendors, subcontractors, and internal teams to ensure required insurance documentation is current and complete.
Order and maintain office supplies, monitor routine inventory needs, and coordinate purchases to s

📌 Accounts Payable Specialist (San Francisco)
🏢 Arbmechanical
📍 San Francisco